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  1. John Pearsley
    Post

    Replace Z axit linear rods

    Thanks, I didn't know about the problem with oil and the bearings. It appears that I need to remove the rods to get the guides off. I assume I...
    Post by: John Pearsley, Dec 2, 2021 in forum: Troubleshooting
  2. John Pearsley
    Post

    Replace Z axit linear rods

    I've rebuilt most of the internals so the printer is fully open. I was having problems with the z axis sticking during movement. Oiling the rods...
    Post by: John Pearsley, Dec 2, 2021 in forum: Troubleshooting
  3. John Pearsley
    Thread

    Replace Z axit linear rods

    Does anyone know where I can find some information about replacing the Z axis linear rods? Specifically I'm having trouble removing the old ones.
    Thread by: John Pearsley, Dec 1, 2021, 5 replies, in forum: Troubleshooting
  4. John Pearsley
    Thread

    Unresolved unexplained temperature drop on hot end

    We suddenly see on a irregular basis after printing quite a few parts, the hot end temperature begins dropping from 210C until it gets to about...
    Thread by: John Pearsley, Apr 17, 2021, 1 replies, in forum: Troubleshooting
  5. John Pearsley
    Thread

    Solved r1+ fan connections on ramps have no power

    We had a problem with the r1+ ramps board not providing power to fan1, fan2 or led. We replaced ramps board and it worked for a while but now is...
    Thread by: John Pearsley, Mar 25, 2021, 1 replies, in forum: Troubleshooting
  6. John Pearsley
    Thread

    Solved Pla not feeding after 45 minutes

    We have a problem with the PLA not feeding after about 45 minutes. We have a R1+ with a new Ramps board and new hotend (inc thermistor and...
    Thread by: John Pearsley, Mar 20, 2021, 2 replies, in forum: Troubleshooting
  7. John Pearsley
    Post

    R2 LCD upgrade issue

    Thanks. As I understand your suggestion, stay with the NOOBS image with its usb touch control, locate an existing LCD plugin for the Octoprint...
    Post by: John Pearsley, Jan 1, 2021 in forum: Troubleshooting
  8. John Pearsley
    Thread

    R2 LCD upgrade issue

    I've upgraded my R2 rPI to use a 5 inch capacitive touch lcd using HDMI for video control and usb for touch control. My original octoprint SD10...
    Thread by: John Pearsley, Jan 1, 2021, 4 replies, in forum: Troubleshooting
  9. John Pearsley
    Post

    R2 Ir probe

    This make me think that maybe my version of the Robo R2 marlin code is not handling the ISR process for the signal. I have seen some C++ code from...
    Post by: John Pearsley, Oct 22, 2020 in forum: Troubleshooting
  10. John Pearsley
    Thread

    R2 Ir probe

    I’m having a problem with the R2 ir probe. I’ve replaced the mainboard with a ramps 1.6+/mega 2560 combo pcbs. I use a breakout board to get the...
    Thread by: John Pearsley, Oct 22, 2020, 3 replies, in forum: Troubleshooting
  11. John Pearsley
    Post

    ramps 1.6+ issue

    thank you. I do have the heat sinks on the a4988 boards. I found instructions to solder the reset/sleep pins together which I did. Since then I...
    Post by: John Pearsley, Jul 27, 2020 in forum: Mods and Upgrades
  12. John Pearsley
    Thread

    ramps 1.6+ issue

    I'm upgrading an R2 with a Ramps 1.6+/mega2560 set at 24v. The Z axis A4988 board burned out but not the others. I had tweeked the steps_per_axis...
    Thread by: John Pearsley, Jul 26, 2020, 4 replies, in forum: Mods and Upgrades
  13. John Pearsley
    Post

    R2 upgrade to Ramps 1.4/Mega 2560

    was the info in your zip file for "Marlin-R2 Partsbuilt-E3D-PID fix" and does it use d8 for the fan and d9 for the bed heater? If so, all of my...
    Post by: John Pearsley, Jul 6, 2020 in forum: Mods and Upgrades
  14. John Pearsley
    Post

    R2 upgrade to Ramps 1.4/Mega 2560

    Lance, I am using the ZylTech ramps 1.4 board for my upgrade from the R2 mainboard. It appears that the D9 pin is permanently on when the power is...
    Post by: John Pearsley, Jul 6, 2020 in forum: Mods and Upgrades
  15. John Pearsley
    Post

    strange interaction between x/y and z steppers

    Lance At this point I'm still trying to test the new parts and settings. I've been using pronsole.exe and debug statements to follow the software....
    Post by: John Pearsley, Jun 17, 2020 in forum: General Questions
  16. John Pearsley
    Post

    strange interaction between x/y and z steppers

    I think I figured this one out. It looks like the Z movement was from the G28 attempting to home all the axis. I think it was being sent before...
    Post by: John Pearsley, Jun 16, 2020 in forum: General Questions
  17. John Pearsley
    Thread

    strange interaction between x/y and z steppers

    I'm trying to replace the R2 mainboard with a ramps/mega 2560 board pair. I have all 3 steppers connected to the ramps board with their end stops....
    Thread by: John Pearsley, Jun 16, 2020, 8 replies, in forum: General Questions
  18. John Pearsley
    Post

    wire connectors for Ramps boards

    sorry, I forgot to explain. I've replaced the R2 mainboard with a RAMPS/Mega2560 boards. I've used a breakout board to get to the information for...
    Post by: John Pearsley, Jun 14, 2020 in forum: General Questions
  19. John Pearsley
    Thread

    wire connectors for Ramps boards

    Does anyone have a source for female wire connectors that fit the ramps 1.4 board pins? I have only been able to locate harwin m20-1180046 crimp...
    Thread by: John Pearsley, Jun 14, 2020, 5 replies, in forum: General Questions
  20. John Pearsley
    Post

    Using Arduino board on Robo R2 project in process

    ok, I'll check the downtown board and get that clear. after that I should be able to upload the hex file to the marlin 2560 board and I'll put it...
    Post by: John Pearsley, May 24, 2020 in forum: Mods and Upgrades
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