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Shot in the ARM for 3D printers, CNC machines and Laser cutters running on RAMPS Controllers.
Shot in the ARM for 3D printers, CNC machines and Laser cutters running on RAMPS Controllers.
489 backers pledged $29,134 to help bring this project to life.

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    1. Missing avatar

      Pasi on

      Anyone have problems with hotend pid tuning? I have very much problems to get hotend pid ok. Normally temp leave very much under what that need to be. And if you are near to setpoint takes minutes to get right temp set.

      Thinking are that possible ramps have bad Mosfet with 3.3v gate voltage?

      Or is that something else what i can do?

    2. Missing avatar

      flexfloo on

      Hello, it will soon 2 months since my package was sent. To this day, I still have not received anything. How long should I wait? Maybe 3 months. I think my package is totally lost so I can not use the 3 cards I buy. I simply ask for the refund of the 3 purchased cards that I have never received.

    3. Missing avatar


      Mine seems to have been sent back for none payment of custom fees. I didn't get any notification of this. Looks like I got a long wait for my re-arm lol. Roy has replied, but has taken him a while.

    4. Shen Yiming on

      Have any chinese friends get the reward? I'm backer 372, shipped Jan 7th. After 2 month it's still on the sea?

    5. Ben on

      Received mine in the uk a couple of weeks ago, any news on the K40 shield?

    6. Missing avatar

      flexfloo on

      Hello friends french, have you received your reward well? Personally I still have not received anything and I'm starting to be worried

    7. Missing avatar

      Pierre Lauret on

      received mine today ! black and gold is REALLY sexy

    8. Missing avatar

      John Gkatzias on

      About the z axis induction sensor. Had the same problem but worked when I configured it with a pull down resistor I mean
      zprobe.probe_pin 1.29!v
      also you need to define that there is no min endstop for z
      gamma_min_endstop nc

    9. Missing avatar

      Pierre Lauret on

      Roy sent me tracking number. Thanks for the prompt answer !

    10. Missing avatar

      Pierre Lauret on

      Hey backer 508 here. Still no tracking number (international) and no package either. What is happening ?

    11. Missing avatar

      Lucas on

      RRD cables didn't work for me. Screen would flash each time I turned the dial or press. Pulled my hair until I decided to try to make from the old cable, splicing the +5 straight to the PSU. Works! Just debugging my config file (the press to select button is killing the board, and the steppers need adjusting so they move instead of buzz). Thanks!

    12. Missing avatar


      Not sure if anyone else has/had the same issue. My tracking shows my board is stuck somewhere between LA and the UK, Since 21st Jan... No reply from Roy yet.

    13. Missing avatar

      flexfloo on

      Hello, friends French users? Has anyone ever received his reward?

    14. Missing avatar

      ross placing on

      I have had difficulties with a ramps, rrgraphical display (that works fine on a mega) on the re-arm with the cartisian config (with the display settings from the delta) not displaying, but the delta config does display, any suggestions?

    15. Missing avatar

      Pasi on

      Some reason not can edit old message :( Can i use Vin barrel jack to supply 12volts to board and still use usb to communication to computer?

      Or do i need use USB (jumper) if i use this with computer. Love to use this with computer but maybe here is some problems that usb not can carry much power what re-arm board needs. Board start working normally when take ramps out off that. Now that works again when i put ramps back to re-arm. I still think there is some problems to board not get enough "juice" on usb jack.

    16. Missing avatar

      Pasi on

      Not get any connection with Windows 7 computer too. Only shows device manager "unknown devices" spot "Smoothie". Not see com port or sd card on windows "my computer" view.

    17. Missing avatar

      Pasi on

      Linux tells this kind of message on dmesg console command

      "[ 1081.954950] usb 1-1.4: new full-speed USB device number 8 using dwc_otg
      [ 1082.070684] usb 1-1.4: New USB device found, idVendor=1d50, idProduct=6015
      [ 1082.070725] usb 1-1.4: New USB device strings: Mfr=1, Product=2, SerialNumber=0
      [ 1082.070745] usb 1-1.4: Product: Smoothie
      [ 1082.070763] usb 1-1.4: Manufacturer: SmoothieWare

      But not get any connection on octoprint to re-arm board. Before this problem there is always one option on Serial port -menu. Now there is only AUTO and that not find anything.

      Hope someone have same problems and some solution to that.

    18. Missing avatar

      Pasi on

      Other problem is whole board is couple times now "dead". Last time i get that working to format sd card and put image again there and restart again and shutdown and put config file back to there. Just doing something like that that started working again normally.

      Now board do same problems. When i start board nothing comes to lcd, octoprint not see any devices on USB port. Now try to sd format etc many times nothing helps. Is this board that kind easy to broke down totally? Or do some one have any tips how that goes back to working condition.

    19. Missing avatar

      David on

      Are there any restrictions to the SD cards?
      I can't get my SD Card working. I have a Kingston 8GB microDS HC class4.
      I don't see the Card on my PC connected to USB. And it seems that the config.txt isn't loaded.
      Because the Network module and the Display aren't operating, too.

    20. Missing avatar

      Pasi on

      Now i started to change my old printer to Re-arm everything else is going quite ok. M80 command give me some kill switch message, but that not so big problem.

      Biggest problem is i dont get my Inductive sensor working smoothie at all. My mechanical endstops work ok on x and y axles. But z axle induction probe not working. I attach that on 1.28 or 1.29 and try to use z azle min ja max slots on ramps. But i dont get any changes z endstop state on M119 gcode. My induction sensor works realy well on marlin firmware. I measured that induction sensor give 3.3volts positive on mainboard when not triggered and 0.2volts when triggered.

      But i dont get any changes to firmware state.

    21. Missing avatar

      Martin Gerken on

      I got mine today, 7€ customs due (nice that you did not send with UPS or DHL Express, they add a 10€ charge on top). I need some tome to install it on my Trium3D (another kickstarter) Thanks!

    22. Andre Seitz on

      Got someone a config for me for a core xy?
      I tryed many things but the axis moves where ever they want and my Bed Temperature ist
      constant on -25°C ... I'am not living in a Freezer. :D

    23. Missing avatar

      Pasi on

      Thanks Roy, board is arrived today. Not have time to start installing that now. But want to ask Roy @Roy Cortes or @all are they some tested or best microsd cards to that use. microsd card is needed to change and do settings on firmware on smoothieware if i am right?

      I dont use microsd anything else only that firmware settings. I use octoprint to do all printings.

    24. Missing avatar

      John Gkatzias on

      @Hideo Kobayashi
      Thanks that was very helpful

    25. Georg Mill on

      1st basic tests worked fine.
      Ethernet: o.k.
      RRD Full Graphic Smart LCD: o.k
      see more on

    26. Karolis Borkertas on

      It runs only Smoothieware ?

    27. Missing avatar

      Hideo Kobayashi on

      @ross placing I mean delivered package won't include a SD memory card.

    28. Missing avatar

      Hideo Kobayashi on

      @John Gkatzias You may find a clue for DIY Cooling Fan MOSFET Driver at And, RepRapDiscount has RepRap Ramps 1.4 Fan Extender At least 1 of 2 fans will work. Try online searching "RAMPS fan MOSFET" if you want more info.

    29. Missing avatar

      John Gkatzias on

      @Hideo Kobayashi
      It would be nice that someone who knows what he is doing makes a how to guide about that external mosfet.

    30. Missing avatar

      ross placing on

      question, should the rearm boards have a tf memory card with them?

    31. Missing avatar

      ross placing on

      backer 201, australia, just received the boards, they look very good, will get around to the upgrading in the next week or so, btw tracking still shows in los angles

    32. Georg Mill on

      The board arrived today. It looks nice and works ... well, I'll test it tomorrow ;-)

      @Creator Thanks for that fine piece of hardware.

    33. James Babcock

      Backer #509 received my pledge board today in Alberta, Canada. Nice looking board, well done. Installing soon in my Robo3D Kickstarter edition!

    34. Jon Raymond on

      Are the DipTrace design files for the board available now?

    35. Missing avatar

      Hideo Kobayashi on

      @John Gkatzias Yes, D4 pin at SERVOS header will be able to drive a DC12V fan with an external N-MOSFET attached.

    36. Missing avatar

      John Gkatzias on

      @Hideo Kobayashi
      Do you mean that it could work as a setup with two extruders, a heated bed and a cooling fan for the printed part?

    37. Missing avatar

      Y on

      Anyone else having issues with thermister reading INF right across the board?
      M105: ok T:inf /0.0 @0 T:inf /0.0 @0 T:inf /0.0 @0

      Using pin 0.23 0.25 and 0.24 for T1 T2 and T3 (extruder bed extruder)
      Tested the resistance across T1 T2 and T3 on the pins on the side of the rearm and get 44.5k resistance right across so they do seem to be connceted!

    38. Missing avatar

      Daniel Hoffman on

      ive got RRD cables coming for mine, has anyone got any experience with OLED panels?

    39. Missing avatar

      Y on

      Seems I incorrectly responded to the survey specifying other and missing the RRD display So no cable for me :(

      Is there a way to get the modified cable? or what is required to splice it myself?

    40. Ax Smith-Laffin on

      Btw, I managed to sort the fan out, I'd forgotten to switch the fan module on in firmware *facepalms*

    41. Ax Smith-Laffin on

      Right been playing and I've got an issue with the layer fan. Fan has been tested as working, it's 5v shifted voltage on the Re-ARM on pin 2.4 but I'm guessing it's a knock off 'fet so the gate voltage is too high. Will replace it and see what happens.

    42. Ax Smith-Laffin on

      Arrived just now - UK based. It looks awesome, will get to playing in a bit

    43. Missing avatar

      Daniel Hoffman on

      I've got mine for Jan shipping. No movement yet but glad anyway.

      Converting a wanhao i3 and two tevo tarantulas eventually :)


    44. Roger Kolasinski on

      Hi. Seems like people are getting shipping notifications now - whew - didn't get my notification yet, at least this means all hope is not lost! (I'm still waiting for the Plastc card I backed two years ago! Lol

    45. Jeff Koo on

      I received my January shipment, East Coast USA.

    46. Missing avatar

      ross placing on

      received my shipping notice, now just waiting, and WHEN I get the re-arms I will start converting three printers a kc, robblebot basic, and a prussa i3 clone, as my diamond headed printer is on a rambo, it will not be converted

    47. Missing avatar

      Hideo Kobayashi on

      I figure out that Re-ARM can swing full of MOS-FET inputs (5V level each on genuine RAMPS) using quad level converter MC74VHCT125A (14 pin device marked U2 on prototype, U1 on delivered board). Three channels are dedicated to drive MOS-FET, rest one channel seems connected with one of SERVOS header pins, D4.

    48. Chuck Stuart on

      Received my shipping notice yesterday afternoon. Now to decide which printer the Re-Arm with grace...

    49. Missing avatar

      Daniel Hoffman on

      Jan delivery and no updates/shipping notices yet...

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