attaching lcd panel to ramps board pricelist

2023-01-03 12:32:11

This Smart controller includes a 128x64 dot matrix LCD screen, a rotary encoder and an SD card reader. Connecting it to a RAMPS 1.4 board is easy using the included adapter, and it is compatible with the majority of open source 3D printer firmwares, although we recommend using Marlin v3 or later.

Thanks to this system it is not necessary to use a computer in order to control the printer, designs can be loaded from the SD card and all the necessary adjustments like calibration or axes movement can be done by just using the rotary encoder on the board.

attaching lcd panel to ramps board pricelist

If you build up a 3d printer from scratch, you must install a firmware on the controller board. This article descripes the steps when you install the Marlin firmware on a RepRap controller using the combination of an Arduino Mega 2560 and the RAMPS 1.4 shield.

If you want to run your RAMPS 1.4 together with the Full Graphic Display, you also must download the u8glib library from https://github.com/olikraus/U8glib_Arduino. After downloading the package zu unzip it and copy then the complete subdirectory into the location of your Arduino development environment into the subdirectory "libraries".

The Arduino development environment already contains a driver for the "Arduino 2560". As soon as you connect the Arduino to your computer, the device will be automatically recognized. The connectd Arduino board will be assigned automatically to a COM port on your computer. You can determine the assigned COM port by opening the device manager of your Windows installation and navigate to the COM & LPT entry.

After you installed the Arduino development environment and you unpacked the Marlin Firmware in a directory on your computer, you can start with the configuration for your own 3d printer. You start this step by choosing "File/open" within the Arduino compiler. Then you choose the directory where you unzipped the Marlin Firmware and select the file "Marlin.ino". The Arduino dev environment then opens all files belonging to the firmware.

To ensure that compiling and transmission of the firmware your Arduino will work, you must open the menu "Tools/Board" and select as type "Arduino Mega 2560 or Mega ADK".

Now you can try to compile the Marlin Firmware. The compiling of the firmware will be started by clicking the checkmark symbol direct below the menu item "File".

Nearby the top of the file you will find the setting of the Baudrate, with which your board will be accept transmissions over the USB connection. In the current version the default setting is "250000". For some computers or USB ports this setting may lead to problems. For a more stable setting it might be a good idea to change this value to 115200. // This determines the communication speed of the printer

In the actual Marlin Firmware all supported printer boards are listed within the file "boards.h". This file contains the following entries for the RAMPS 1.4: #define BOARD_RAMPS_13_EFB 1010 // RAMPS 1.3 (Power outputs: Hotend, Fan, Bed)

The most common version may be the variant . In this case you have to set the value as the following lines show. #ifndef MOTHERBOARD

If you have a Full Graphic Display Controller (DOT Matrix 128x64) connected to your RAMPS you must remove the both "//" in front of the DEFINE around line 1910. So this part in the source code should look like the following lines show. But you must keep in mind, that you have to add the u8glib to your Arduino environment (see Preconditions!). // IMPORTANT: The U8glib library is required for Graphical Display!

Now you made the base configuration for your RAMPS 1.4 board. If you transmitt this version to your board (klicking the button with the arrow to the right), then your display of your 3d printer should show the first signs of live.

Ok, it"s time to make the adjustments specific to your 3d printer. You might first check the setting for the amount of extruders at around line 145. Most 3d printer rookies may start with one extruder, so the default entry of "1" is quite sufficient. // This defines the number of extruders

At around line 70 you have to set up the thermistors connected to the RAMPS for the extruder and the heatbed. Depending on your hardware configuration you have to change the last value in the defines. #define TEMP_SENSOR_0

The define for TEMP_SENSOR_0 determins which thermistor type is assembled at the hotend of extruder 1. This termistor has to be connected to the first sensor input (see also wiring schema). The thermistor for the heatbed has to be connected to the second sensor input. The thermistor type is configured with the define line of "TEMP_SENSOR_BED". If you use a thermistor of the type EPCOS B57560G104F (100K, Beta = 4036), you write the value "1" into the matching define. In case you have a thermistor with 100k and Beta = 3950, you have to set the value "60" in the corresponding define. So the defines will look e.g.:

If you like, you can tune the DEFINES for HEATER_x_MINTEMP and HEATER_x_MAXTEMP. But that"s not really necessary. The predefined values ensure, that the printer will stop in case of a NTC failure or cable break. // Below this temperature the heater will be switched off

Starting on line 1058 you can adjust the turn directions how your stepper motors. // Invert the stepper direction. Change (or reverse the motor connector) if an axis goes the wrong way.

In this section you have to adjust the direction of the stepper motors matching you version of a 3d printer. The easiest way is to move one axis for some units into one direction. This may be done by using the display (if you have one installed) or with the host software (e.g. printrun or repetier). If you moved the axis, you check wheter the motor turns into the right direction. In case not, you change the value behind the matching INVERT_?_DIR entry from true to false or vice versa.

With homing the firmware moves all axis until it hits the endstop. If the stepper turns into the wrong direction the head or the bed will run into the wrong direction until it hits the mechanical end of the axis. You can only stop this by resetting the printer or turn of the power.

After turning power on, the Marlin Firmware sets the current position to 0/0/0. In the initial configuration Marlin allows moving the axis only to positiv positions. With homing the printhead and bed move to the endstops and the firmware starts from there with 0/0/0.

With the next line you have to calibrate (roughly) the axis by setting the necessary steps per unit (Marlin uses [mm]). Therefore you have to set the correct amount of steps the firmware has to use per millimeter. The numbers in the brackets set the values as follows: { x-axis, y-axis, z-axis, extruder}.

At this point you have to make some calculations. You have to start with you stepper motor. You have to check the technical description and read out the amount of steps per revolution. Most used NEMA steppers will have 200 steps per revolution (1.8° step angle). This value has to be multiplied with the configured micro stepping of your stepper driver. Very common are micro steppings of 1/16 or 1/32. This means, that the driver will devide the one mechanical step of the motor into 16 or 32 micro steps. Here you have to check your setting for stepper driver!

Now you have to add into the calculation the mechanical components, which further influence the resolution per unit. A lot of 3d printers use a M8 threaded rod on the z-axis. The M8 rod has normally a thread pitch of 1.25 mm per revolution. To get the total amount of steps per unit, you have to divide the steps calculated befor through the thread pitch. Then you have the first rough setting. The values for a M8 rod then will be: 1/16 Stepping 200 * 16 / 1,25 = 2560

If you have different rods, like acme thread of the types TR8x1.5 or TR10x3, you have to use the pitch values of those for your calculation. You may get with several decimals. I think in practice everything behind the 4th or 5th decimal won"t have a significant influence to the accuracy of your printer. So it should be sufficient to use values up to 4 or 5 fractional digits.

The next point on your checklist is to adjust the stepping per unit for the extruder drive. The feedrate of the filament will be influenced by gear ratio of the extruder and the effective circumference of the filament screw. The standard Gregs Wade extruder has 11 teeth on the small and 39 on the big gear. This results in a transmission ratio of 1 : 3.54. The Wades extruder uses a M8 bold. So you have a diameter of 8mm (roughly, because hobbing will reduce the diameter). With the formula above, you will get a value of 25.1327mm.

The last topic for the initial setup will be setting the maximum feedrates for the distinct axis. This will ensure, that the printer will stay within its physical capabilities even when the GCode advices higher rates. This parameters depend heavily on the physical setup of your printer, like stepper motor current and moved masses of the bed and extruder. Even low feedrates can result in a humming sound of the motors and the axis won"t move when the motor current is set to a low value. If you set the motor current too high, the stepper driver may overheat and overheat protection of the drier will stop the motor. Or more worse, you will damage the stepper by running with a current above its specification.

In any case the motors will stop during the print job and the printed part will be vaste. #define DEFAULT_MAX_FEEDRATE {300, 300, 5, 100} // (mm/sec).

After successful compiling and transmission of the firmware the board will make a reset and the display should show the basic screen of the Marlin firmware. The next picture shows the screen in case of the full graphic lcd.

Now you finished the basic setup and everything should work now. In any case you have to fine tune your printer by calibrating all axis and the extruder!

attaching lcd panel to ramps board pricelist

This Ramps shield Smart Controller contains a SD-Card reader, a rotary encoder and a 20 Character x 4 Line LCD display. You can easy connect it to your Ramps board using the "smart adapter" included.

After connecting this panel to your Ramps you don"t need your pc any more, the Smart Controller supplies power for your SD card. Further more all actions like calibration, axes movements can be done by just using the rotary encoder on the Smart Controller. Print your 3D designs without PC, just with a g-code design stored on the SD card.

attaching lcd panel to ramps board pricelist

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attaching lcd panel to ramps board pricelist

The Re-Arm micro controller board is more powerful and built with a faster processor, enabling faster feed rates for you 3D printer. The board has an SD card slot for firmware and configuration files, but also supports a second SD card connected via an LCD screen for project file loading. Having a separate configuration file outside of the firmware makes settings changes much easier than other boards which require new firmware for any and all settings changes. The configuration is a text file, making changes from a computer easy and fast.

Since SD cards appear as a drive in windows, it"s easy to drag and drop new firmware or edit the config file right on your computer without the need for specialized software.

Supports 2 SD cards - one for settings and firmware, installed directly onto this board as well as another for file loading, which connects on the LCD screen.

attaching lcd panel to ramps board pricelist

In RAMPS 1.4 the capacitors and resistors are now surface mount (SMD) components. This provided more space for more passive components, as well as headers. This does add another set of steps to the assembly process, but we stuck with larger sizes to make it fairly painless.

There are multiple boards all based on the RAMPS 1.3/1.4 design with minor variations in form factors and components, for example Prusa, Ultimaker and others. Other incarnations combined the components of the Arduino ATmega and the RAMPS into a single board, some using ATMega128. They may have different power/rating capabilities but the basic structure and electrical behavior is very similar and we describe them as RAMPS compatible, in fact most boards in firmwares like Marlin are treated as derivate of RAMPS.

This section presents the basic steps to wire an assemble RAMPS 1.4 board assuming the more common scenarios. Check the #Assembly section to learn how to assemble your own Ramps 1.4 board.

Notice that the bed thermistor connects to a header block of three pairs. From left to right they are labeled T0 for the first extruder, T1 for the heatbed, and T2 for a second extruder.

The extruder has a heating element (heater cartridge) in the heating block that connects to the screw terminal labeled D10. The heating element must be 12V and consume an average of 2.5 amps. The temperature of the extruder is monitored by a thermistor also installed in the heat block. The thermistor is connected in the terminal labeled T0 (uses pin A15 in Arduino). (The thermistor does not have a polarity.)

The endstops are the switches that tell the firmware when one of its axis (X, Y, Z) has reached either (or both) its minimum or maximum limit. In the board you will find six 3 pin connectors labeled (from left to right) X-MIN, X-MAX, Y-MIN, Y-MAX, Z-MIN, and Z-MAX. While you may connect both endstops for an axis the common setup is to use only one per axis. (Note firmwares implements software endstops for the opposite side using the dimensions on the build area of the printer.)

To simplify the setup of the firmware it is easier to only use the minimum pins of each axis. The minimum is also know as the home location of your axis, on our traditional cartesian FDM printers we said that the end stop for the Z axis is in the bottom end of the frame, for the X axis is to the left of the frame and for the Y axis is somewhere near the back. (Note: all of this can be configured at will but requires more changes in the firmware. Check this excellent page explaining endstops from the Marlin Firmware guys.)

You have endstops with 3-pin connectors. Now days when shopping online is very common to find 3-pins endstops with leds, mainly due to all the Ender 3, CR-10 and similar clones that use them.

Is also common to find endstops with 2-pin connector or using only 2-wires (even if the connector has 3-pins). This is also the case when you wire your endstops directly, in which case only the COMMON and NC pins of the switch are used.

From top-to bottom you will notice that for each axis the first pin is the Signal S, the second is GND, and lastly the 5V pin. In a two pin connection the + pin is NOT used.

When wiring a 2-pin endstop the NC pin is connected to GND (-) on the board. The COMMON pin (marked as C or S) is connected to the S on the board. Usually the endstop will have their pins identified.

When wiring a 3-pin endstop is best not to make assumptions about the pinout on the endstop, check for markings on the PCB, read the manufacture"s information or use a multimeter to identify the pins.

Once you have figure out the type of endstops all that is left to do is to plug the corresponding connector for each axis using minimum pins in the board.

The board allows up to 5 independent motors using stepper motor drivers which today is mainly drivers using the board design of Pololu like the A4988, the DRV8825 or even TMC2130.

Before installing the driver you need to set up the jumpers corresponding to each stepper to set the steps. These jumpers define the microsteps for that particular driver. For A4988 setting all the jumpers will set the micro stepping to 1/16 of a step. For a DRV8825 setting the last jumper will enable 1/16 micro stepping.

Some notes on TMC2130: Getting TMC2130 stepper drivers to work on a RAMPS 1.4 board requires modifications to the board. TMC2130 stepper drivers are configure by software using SPI. TMC2130 drivers require the pins from AUX02 and AUX-3 to be available if for example you have an SD Card or and LCD, chances are that you won"t be able to setup the SPI interface for the TMC2130.

A RAMPS 1.4 board using traditional Pololu drivers provide from 1A to 1.2A of current and about 4V to a NEMA motor. The force a motor can produce is mainly measure by its holding torque (For example 3.2 kg-cm, You will also find this in Newtons or oz-in)

The force it can produce. The main metrics for this is the holding torque (For example 3.2 kg-cm, You will also find this in Newtons or oz-in). For most designs an average of 44 N·cm is enough force to handle your everyday prints.

The steps of a motor is how accurately it can move. This is given in degrees per step or steps per revolution. For example in 3D printing an average NEMA17 motor used is 1.8 or 0.9 degrees with 200/400 steps per revolution. If a motor makes a 1.8 degree rotation in one step, then to complete one revolution (that is 360 degrees in a circle) it will take 200 steps. Most common NEMA 17 motors are 1.8 degree steppers.

A motor will have 4 cables either directly attached or as a ribbon that has a (JST-XH) six pin connector in the motor. The other end of the connector will be a 4 pin header that attaches to the RAMPS board. (From the six pins of a motor only four are used on the connector.)

Since the motor has two coils (2 phases motors), each coil has two pairs of cables. Like shown on the above picture the trick is to identify what pin in the motor corresponds to a pair. The illustration shows two common combinations, we call them straight and cross. The straight has the pins for the coil in order and the cross switches the two in the middle.

The other thing with the two cables in a pair is their polarity. The polarity tells the direction of the spin. There is not such thing as wrong direction instead the direction is dictated by how is the motor used and the control board. For this reason in many motor diagrams you will NOT see polarity specified as is left for the implementation of the design to select the default direction.

Using a multimeter in continuity (resistance/diode test mode) you can test the combinations of pins until you find the pair that belongs to one coil. In continuity test you will have a low resistance value, some multimeters beep or read "short/closed" to indicate when you found a pair. Use the first picture as reference to check if you have a straight or crossed pinout.

Hint If you are swapping a motor in a printer or equipment already wired, then check both ends to see which are the pairs, use the picture "Common Coil Combinations" for reference. If your new motor came with a cable then compare the motor end of the new and old connector to quickly tell if its cross or straight. Usually black/green are in one side and blue/red in the other (don"t mind the order of the pairs), if you see one cable from one of these two pairs swap in the middle two pins, chances is that you have a crossed connector for your motor.

Connect the 12V power cables to the positive end (+) on the board. In your Power Supply (PSU) these cables may be yellow or red and are usually labeled V+ or 12V. The black cable is negative/ground and is usually labeled V- or COM. Always check the label on the power supply for actual cable details or see the manufacturer"s manual.

The board has two pairs of connectors for power, one labeled 11A and the other 5A, both of these pairs are 12V connections. The 11 amps pair is used to power the heated bed. The 5 amps source is used to power the board, the rest of the printer"s components and the Arduino board.

Your power supply should be able to deliver 16 amps, is ok if it delivers more. The generic S360-12 power supply is commonly used in 3D printers and provide about 30A/360W. Other variants are the S-480 and S-600 for 480W and 600W respectively.

The heater block on the extruder shares the 5A source, make sure that the amperage/current drawn by additional extruders can be supported by the board.

The RAMPS 1.4 has a 1N4004 diode labeled D1 which allows 12V to feed and power the Arduino Mega 2560 board. This diode is installed in most pre-assemble boards, thus the Arduino board is powered by the Ramps by default.

When the RAMPS is not powered or if the diode is not installed or cut/removed, the Arduino gets its power from USB or a power supply connected to its 2.1mm (center positive) power jack.

The Arduino provides a Vin connection to connect an external power source that can be from 7V to 12V, remember the diode D1 can not be connected if you plan to power the Arduino using its Vin.

The PS_ON pin is intended to switch your power supply on and off. Many firmwares support pulling this pin low with M80 command to turn the power supply on, and M81 to turn it off. This behavior is desired for ATX power supplies and can be modified in firmware to support 5V high power supplies like those borrowed from an Xbox.

If you want to use PS_ON to turn on your power supply then don"t use diode D1, you need your Arduino to be powered from 5Vsb otherwise when no USB is connected the PS_ON pin floats (and your power supply pulses on and off).

Or you can hack up a 12V laptop power supply, or other 12 V "wall wart" power supply. Make sure that the power supply can output 5A or greater. Additional 11A may be needed for heated bed support.

The 5V pin in that connector on RAMPS only supplies the 5V to the auxiliary servo connectors. It is designed so that you can jumper it to the VCC pin and use the Arduino"s power supply to supply 5V for extra servos if you are only powered from USB or 5V. Since there is not a lot of extra power from the Arduino"s power supply you can connect it directly to your 5V power supply if you have one. You can also leave this pin not connected if you have no plan to add extra servos.

First, the 1N4004 diode (Diode D1) connects the RAMPS input voltage to the Arduino Mega which has a recommended maximum input voltage of 12 volts. If your board does not have this diode soldered in (or if you cut it), you will need to power the Mega through the USB connector or through a separate 5v line, but this allows a higher RAMPS voltage.

Second, most boards use 25v or 35v aluminum electrolytic capacitors (C2, C3, C4, C6, C7, C9, and C10). To be safe, you should only go to half of your rated maximum voltage -- thus if your board has 35v capacitors (code VZA) then you should use a maximum input of 17.5v. The absolute maximum voltage is determined by the Pololu servo drivers, which themselves are limited to 35V.

DON"T secure Arduino/RAMPS with conductive screws through both mounting holes. The screw may cut into the positive trace creating a HIGH current short.

On R1+ board the extruder heater is connected to the plug labeled D9. This connector corresponds to the original D10 of RAMPS board and still responds to Arduino"s pin 10.

As of 2012 Marlin has built-in support for RAMPS 1.3 and Ramps 1.4 boards. Marlin"s Firmware up to version 1.1.9 and even version 2 compile with ease using new version of the Arduinos IDE. Compiling a firmware older than 1.1.x require changes to the code or to use an older IDE version.

The SRAMP Firmware is a fork of Marlin v1.1.9 exclusively tailored Mendel/Cartesian printers using 8Bit Microcontrollers. The firmware sports a new GCODE parser and aims to make it easier hobby builders to add features (LCD, SD, etc).

Working preconfigured Sprinter firmware can be downloaded here: File:UltiMachineRAMPS1-4Sprinter.zip. Mechanical is in the folder ending with ME, optical endstop firmware is in the folder ending in OE.

mechanical endstops (now the default ultimachine.com option) require #define OPTO_PULLUPS_INTERNAL 1 to be added to configuration.h if not there by default.

Note * You can use Female Headers which are not the exact size, but they are hard to break/cut so in this case buy some extra! (one wasted header per cut)

A BOM for sourcing the RAMPS components from Mouser is also available in this google spreadsheet (This list is incomplete and has missing or incorrect quantities.)

The surface mount can be done a few ways. Since all the SMT components on this board are large 2 pad parts you can do pin by pin soldering pretty easy with normal soldering equipment. Start by putting a small amount of solder on one pad. If you have flux, coat the soldered pad. Use the tweezers to hold the component down in position and heat the solder to tack the component into place (make sure the entire solder blob flows so you don"t get a cold solder). Then solder the other pad. Also popular is using solder paste for pad by pad soldering, Oven Reflow (need link), and HotplateReflowTechnique

These must be placed in the proper orientation. The board has the foot print of the components printed on it. The rounded corners on the base of the capacitor must line up with the white print on the PCB.

Solder 1 1x6, 6 1x4, and 7 2x3 pin headers on top of the board. The long post should be standing up to take a connector. Solder one leg on each one to tack them into place. Then re-heat the joint and push on the component until it is perfectly situated. Then you"ll want to solder the rest of the leads. You will get burnt if you touch the other side of the pin you are soldering.

Place the female headers for the stepper drivers on top of the board. You can use the 1x8 and 1x6 pin headers to jig them straight. Turn the board over and solder these pins.

This section assumes you are using Pololu, but there are other options. Insert two 1x8 pin headers into the board. If you bought a kit with one 16 pin header, simply cut it so that you have two 1x8. Make sure that the side with the labels has the long ends of the posts, and the side you want to solder is the side with the heat sink. Doing this backwards will cause you not to see the labels and will most likely not fit. Remember to apply a heat-sink to the largest chip on the back.

D1 should only be installed if the 5A rail is powered by 12V. It can be omitted and the Arduino will be powered from USB. You will want D1 installed if you add components to print without a PC. To reiterate, D1 MUST be omitted if you are powering the 5A rail by more than 12V, or the power is not absolutely clean, otherwise you may damage your ramps.

This is the smaller yellow fuse. This can be placed in any orientation. When soldering the fuses it is best to use a piece of 3mm filament or something similar to keep the ceramic coating on the pins from blocking proper solder along the through hole.

Since the fuses are the tallest parts, it is simpler and more convenient to solder them last. From this point on, solder the rest of the RAMPS in order of bottom pins, reset switch, terminals, mosfets and then fuses.

Place these on the bottom of the board with the long post out to plug into the Arduino MEGA. You can plug them into the MEGA to hold them in place while you solder. Do not overheat the pins while in Arduino or you may damage its connectors.

This must be oriented where the wire holes are turned towards the edge of the board. Solder a pin on each end and make sure the component is flat on the board and solder the middle pins.

Connect Motors (Do not disconnect or connect motors while powered; if the connection is loose, this will cause the motors to misbehave and possibly kill your stepper driver.)

As there are (by 2019) many different producers of the RAMPS 1.4 board, some who have made their own changes to the design files, thus some boards have some close to critical issues. See examples below.

A "thermals" design flaw has been noted in the RAMPS 1.4 Eagle CAD files. This has been confirmed by visual inspection of production boards, which consistently shows only between two and three (almost never four) thermal-isolating traces per side of the PCB, to power-carrying pins, of under a 0.5 amp carrying-capacity per trace, assuming a 1oz copper thickness.

This image is also in error (it isn"t: it"s a photograph of an existing production RAMPS 1.4 board), the left two unpopulated pins on the image are for the always on fan and use very little current. So are not an issue (actually it is)

The problem may be fixed in the Eagle CAD files - for a future version of RAMPS only - by disabling "thermals" on the GND, +12V and the +12V2 Copper pour. However on existing (mass-produced) RAMPS 1.4 boards, estimating the total widths (including all thermals from all tracks on both sides of the PCB) checking with an online copper width calculator and adding up the total current, assuming a 1oz copper PCB the maximum safe current on the fuses (giving only a 10C rise in temperature of the thermal-isolation tracks) is only around 6 (six) amps and in other areas the maximum safe current (assuming the same 10C rise in temperature) is around 8 (eight) amps.

This problem may potentially be fixed on existing RAMPS 1.4 boards by augmenting the power traces with suitably-thick insulated wires with sufficient current-carrying capacity, soldering them to all the relevant pins.

Minimum total parallel trace with measured on the bed power rail was about 80mil, which would equate to a 4 amp safe limit using the above considerations. Board is marked with "www.bigtee-tech.com" where the "UltiMachine" and "reprap.org/wiki/RAMPS_1.4" markings are in the original 1.4 design.

Note the decreased isolation of the copper pours. Slikscren has the "reprap.org/wiki/RAMPS_1.4" marking but not the "UltiMachine" found on the original design.

Using a "JY-MCU" (vendor Shenzhen Jiayuan Electronic Co.,Ltd.) Bluetooth modules (HC03, HC05, HC06 chipsets) to setup a wireless connection to the Arduino.

Before the module can be used, the default setting has to be changed. You can connect to and modify the BT JY-MCU module settings via the Arduino mega 2560 using the pin 10 and pin 9 as Rx and Tx terminals, respectively. Make sure you connect Rx on the BT module to the Tx on the arduino and vice versa, in other words Rx goes to Tx and vice versa. Upload the simple code to arduino located on an instructable entitled "Success-Using-the-JY-MCU-linvor-Bluetooth-Module". Use the serial monitor within arduino IDE or another terminal program, with baudrate set to 9600 and "No Line Ending" selected, enter the following commands:

Alternatively, you can connect to the module from PC via USB<->RS232 (RxD/TxD) interface with default settings (9600, N, 8, 1). The module shouldn"t be paired at that moment. Use the same AT commands as above.

On RAMPS/Arduino Mega the UART level are 5V but the BT module supports only 3.3V input. Therefore the TxD level has to be divided by resistor. This passive solution is fast enough for 115kBaud. Overall only 4 wires have to be soldered.

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About: Avid 3D printer builder, currently completing my 3rd printer design. If you like what you see and maybe even implement what provide, consider supporting subscribing to my youtube channel https://www.youtube.co…

In this instructable I will walk through all the components and steps required to setup a 3D Printer using the most commonly used RAMPS 1.4 controller board.

Please note that although most components on the 3D printer run 12Volts and less. You do need to connect your power brick to 110 Volts. BE CAREFULL, YOU ARE DEALING WITH LIVE POWER.

There are many other boards on the market and I"ve personally had good luck with the KFB2.0 board with acts almost identical to the RAMPS 1.4 but uses slightly different connectors.

The Type of extruder you purchase is up to you. You can choose from Direct Extrusion (motor on the Extruder) or a Bowden type of extrusion (motor feeds filamant through a tube to Hot-end) but it won"t make a difference in hooking them up.

it was pointed out, some of the pictures show wires directly screwed into components. It best to use fork connectors and ferrules for better connectivity:

The Shield should fit right on top of the Arduino board. The USB port on the Arduino should be on the same side as the Green power connector on the Shield. Make sure that all the pins from the bottom of the shield line up with the connectors on the Arduino. Push both boards snuggly together (this may sting a little)

Before adding the Stepper Drivers you need to decide what type of micro stepping is needed by the 3D Printer. I"m not going explain what exactly it means (there is plenty of articles on that). in general, when you buy a 1.8 deg. step angle (200 steps/revolution), the micro stepping becomes a multiplier. What"s important is that for the RAMPS 1.4 most precise stepping is 1/16th micro stepping (16 x 200 = 3200 steps/rotation).

In order to instruct the hardware to use 1/16th micro stepping, jumpers are added between the banks in which the stepper drivers will fit. For 1/16th stepping you need to add three jumpers under each driver. Make sure they are on straight, it"s easy to plunge one of these past the actual pin.

VERY IMPORTANT!! Note how the drivers A4988 Stepper drivers above have a little potentiometer on top (this little phillips screw). When inserting your stepper Driver MAKE SURE THE POTENTIOMETER POINTS AWAY FROM THE BOARDS POWER END (GREEN CONNECTOR).

If you are still unsure: Find a labeled pin on one or more corners of the stepper driver board (DIR, GND, ENABLE, VMOT) and match it up to the RAMPS pinouts.

I hate to say this but, sometimes you"ll find that the bays for these stepper drivers are too close, or the edges of your stepper driver are a bit too wide. In the image above you can see a gap between the top two drivers, whereas the bottom ones barely fit. It might make for a very tight fit and in cases where it doesn"t fit, you may have to file some of the edges from the stepper driver.

It"s a bit hard to see on the smart Adapter I have here, but but you can kind of make out that the left connector (10 pins) says EXP2 and the right connector says EXP1. These correspond with the EXP1 and EXP2 connectors on the LCD board

power comes in on two tracks into the Ramps 1.4 shield. One track is 12V 5A which powers the board and motors, the second track is 12V 11A which powers the heated elements like the extruder and heated bed.

Connect the wires as seen in the images. Be careful, as you can see, the 110V live wire is exposed. Unplug your power source prior to lifting the lid accessing the screws.

Also, note that when you plug in the RAMPS 1.4 with a USB cable to your computer the LCD will come one and you can program the Arduino that way. There is no power to run any motors or heating elements though. For that, you do need the external power source.

Stepper motors come in many varieties and with different power specifications. The printer built in the previous instructable uses Nema 17 0.4Amp Stepper motors. These aren"t the strongest steppers but they do just fine. My CoreXY printer that can handle more speed/torque runs 2.0Amp stepper motors.

Generally the Nema 17 Stepper motors and associated cables are configured correctly, so when you plug them in, they"ll run at first try. If your stepper motor is making funky jumps or just shakes, it generally means the wires from the motor don"t line up with the 2B 2A 1A 1B pins on the board.

If that happens you"ll need to closely look at the data sheet that generally is shown when you purchase the steppers (or it will say something like Black(A+), Green(A-), Red(B+), Blue(B-)). Granted when the wires don"t line up it can be a bit of a puzzle trying to figure out the proper combination.

If you"re building a Prusa/RepRap type printer, you"ll employ 2 stepper motors for the Z-Axis. The RAMPS 1.4 shield has accounted for this and offers two rows of connection pins for the Z-Axis.

Nowadays you can buy really fancy stepper drivers that feel resistance. Along with Marlin software changes you can do without end stops. In most printers though, you"ll need end stops to make sure your X/Y and Z axis don"t run off the rail (or worse; tear something of your printer apart).

The RAMPS 1.4 comes with 6 end stop connections (X Min, X Max, Y Min, Y Max, Z Min, Z Max). Rarely do you use all six. What you"re really interested in is either the Max or Min. If you know one, you can limit movement based on it"s location (0) via the software (if I can detect Min and know my bed is only 200mm wide then I can tell the software to not move beyond min+200)

The most common types of end stops are mechanical swithes, optical switches and proximity sensors. Proximity Sensors tend to only be used for the Z-Axis in conjunction with Auto Bed Leveling. I won"t cover inductive sensor wiring here but if you"re interested, I did write something on the wiring in this article Proximity-Sensor-Detection LJ12A3-4-Z-BX vs LJ12A3-4-Z/BY wiring

If you are using the most commonly used end stops "Makerbot Designed Mechanical Endstop Kit", it comes with little circuit board and wiring. It will light up an LED when triggered.

There are 3 wires coming from the end stop: RED/BLACK/GREEN IMPORTANT: make sure the wires correspond with the image above. If you turn around the connector on the RAMPS board and accidentally put the RED wire on the Signal (as opposed to +) YOU WILL SMELL SMOKE real fast.

If you forego the fancy Makerbot Switch (don"t do it for the price, it"s generally more about the size of the sensor) and instead go with a micro switch it"s my experience wiring is a bit easier. You really only need two wires. solder the wire to the two outside pins of the Micro switch and connect them to the -(minus) and s (signal) pin on the ramps.

You can test the micro switches and their behavior by opening an application like Pronterface or Octo Print and sending the g-code m119. It will show the state of all end stops. As seen in the video below.

The Extruder (the hot-end that spits out the plastic) generally has 6 wires associated and possibly more if you you use auto bed leveling and an additional Hot-end Cooling fan (Unlike the Heat sink fan, it cools the last layer of deposited plastic).

The normal wiring setup generally means we hook the heat sink cooling fan to the 12V fan connector on the RAMPS 1.4. These fan pins can be found between the fuses and the X Stepper Driver (see image above). On the image the left pin is + so make sure the red wire from the fan connects to that one. Oh, and for some reason all wires on 3D printers seem to come at 1 meter but the cooling fan wires generally never do. Be prepared to extend them.

The RAMPS Board has 3 Thermistor hookups (2 extruders, 1 heated bed). The Thermistor wire for the extruder (The white skinny wires) go on T0. Polarity does not matter.

Most heated bed you buy will come with wires and thermistor but are often not yet connected. The most common heated bed is the one seen in the image (the MK 2B by Joseph Prusa, or most likely some clone of it).

At the bottom of the bed you"ll generally see either two or three metal connectors to which to solder the power. If your printer is 12V follow the instructions and solder one wire to both 2 and 3 and the second wire to 1. Don"t bother with the LED connection, There really is no point to those.

The glass bead head of the thermistor goes right into the tiny hole at the center of the bed (this so it will close up to the material on top (like a glass plate).

There you have it. All the wiring that was done for the Laminated 3D printer. These instructions are pretty much the same of any other RAMPS 1.4 installation. There are additional options such as Hotend Cooling fan and Auto Bed Leveling (both of which can be done with the standard RAMPS 1.4) but I"ll save those for another instructable.

The only jumpers you really care about are the jumpers that will be under the stepper drivers. if you fill the three rows under each stepper driver you will use, it will set the micro stepping to the highest (1/16th on the A4988). each jumper oriented shield to shield (see ramps image below). Microstepping options in other image

Do you change the default value of the potentiometer in the stepper driver or do you let it be? I have a 2.6 V 1.2 A NEMA 17 Stepper motor but I am not sure what the current and voltage value on the stepper driver should be to get the best result.

You may have to end up tweaking it when running. I have mine at about 0.6v (If I remember correctly. You can change the pot meter when running the motor and kind of go by sound. If you want to do it right: https://youtu.be/OpaUwWouyE00

I searched more and figured out that there is not a universal standard for colors and letters. I used a multimeter to find out which wire is for what coil inside the motor.

Hi, I’m trying to use this setup for a robotics project, how would I include sensors to trigger motors on the 2560 if the ramps has used all the pins? Do I run a master/slave setup

How do you wire up a 3-wire endstop (makerbot) as a runout sensor? I know you have to use one of the servo ports but I don"t know which one and what wire goes where.

Can I use a MKS base board, v1.6 and control the printing action using Octoprint which will loaded on rasperby pi, instead of using the RAMPS kit ? and i was wondering how can i callibrate or it ? or if you have a guide to use step up the printer using MKS-BASE ?

I"m not familiar with the MKS 1.6 but when I started out with my KFB 2.0 board it"s closed "pin output" pal was the "MKS gen L". Wiring the KFB2.0 3D Printer Controller : 11 Steps (with Pictures) - Instructables Check it out and I think you"ll find the layout and setup very similar.

As for calibration; that will be independent of board and all configuration in the Marlin Software. Check out my other instructable starting at step 10: 3D Printer Cantilever 2.0 C3Dt/c : 14 Steps (with Pictures) - Instructables There"s also videos associated that walk you through some of the steps.

Hi, i have a question. My arduino mega works fine but when i fit the Ramps 1.4 board to it and plug it into my computer the leds on the mega board do not come on nor does my computer acknowledge it either aubily or on device manager. If i take the ramps board off the mega is recognised. Am i right in assuming the ramps board is faulty?

that hasn"t happened to me so I can"t be certain. Certainly doesn"t sound right. Here"s a link with what sounds like an issue similar to yours (with some things to try) https://www.reddit.com/r/3Dprinting/comments/39mzvb/help_ramps_board_makes_arduino_stop_working/0

The power source in this printer actually uses (ring connectors) and the power unit is covered but, you are correct. This was the very first printer I built (over 5 years ago) when forks and ferrules were barely on the radar. All my subsequent printer designs here use forks and ferrules.

I"ve installed Marlin on my Arduino board, no issue. Installed the jumpers and drivers to the Ramps 1.4 board, plugged the Ramps into the Arduino, added the LCD adapter board and connected the LCD screen. Plug it into the computer with the USB cable and voila, she fires up great, ready to go. Unplug the USB and connect the Ramps board to my 12VDC power supply + to +, - to -, and *nothing*. My VOM is showing 12.1 volts at the connectors on the Ramps board, but no LED"s on the boards light up and the display screen doesn"t work. Unhook the power supply, reconnect the Ramps to the computer with the USB cable and it comes back to life. What gives? I"ve triple-checked every connection and it all matches documentation in this instructable. Am I right in thinking I got a bad Ramps board?More CommentsPost Comment

attaching lcd panel to ramps board pricelist

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attaching lcd panel to ramps board pricelist

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attaching lcd panel to ramps board pricelist

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attaching lcd panel to ramps board pricelist

So basically you just replaced everything except for the LCD (the LCD testing is described a little further). If the LCD is not working then, this could imply that either your LCD is broken, or one of the new parts is not functioning as expected, or you have not connected things correctly.

Are you sure the firmware flash went okay? You could test the Arduino Mega 2560 by connecting it over USB to e.g. Pronterface, you do not need the LCD for testing the Arduino Mega and the RAMPS.

The LCD could be tested separately by creating a sketch in Arduino IDE and connect the correct pins of the LCD cable to some pins of an Arduino device, e.g. load the the U8Glib example sketch "GraphicsTest" and add the following constructor:

This implies that you need to attach the correct pins on the Arduino (in my case to digital pins 6, 5 and 4 for respectively SCK, MOSI and CS to the respective EXP1 pins 5, 3 and 4):

attaching lcd panel to ramps board pricelist

I want to upgrade my Anet A8"s motherboard (the stock one is broken anyway, see: Anet A8 reading 739°C from the extruder thermistor!) to the RAMPS 1.4, without having to get a new LCD/microSD module. I am thinking of getting both a smart adapter and sdramps, then maybe plug the sdramps and the stock Anet A8 LCD into the smart adapter, but I am not sure whether the sdramps module has a different pinout than the RAMPS smart controller, which is what the smart adapter is made for.

attaching lcd panel to ramps board pricelist

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