Left Motor test fails

Troubleshooting
21

Ok, where would that be located in the Ground Control folder? Under settings? or somewhere else?

22

:point_up_2: on win$

on linux /home/{user-name}/

23

Okay, I found it, Thank you!

1 Like
24

Alright, so I wiped the EEPROM, deleted the GC.ini, and reinstalled both ground control v1.26 and firmware 1.26. I thought it was going well until I was getting the distance between motors and the motor did not stop and pulled my chain from the right motor. I then went back into the settings and the left motor is only spinning 3/4 of the full 360 in the CCW direction, and when I use the CCW 1 degree it goes about 5 degrees CW instead of 1 degree CCW. I am really not sure what to do now. Iā€™m sorry to keep bugging you about this, but I would like to get it resolved. @Gero

25

yes, if you wipe the eeprom, and delete the ini, you will need to start over and redo all of the calibration.

26

Yes, I know. If you read through the thread, you will see the problem, I know that if I do those things I need to re-calibrate.

27

Hmm. I see. Try pushing down lightly on the heatsink that drives the left motor. I seem to recall that some of the boards had bad solder joints and eventually the driver fell off the maslow shield entirely. If your motor runs properly with the driver pressed down, then itā€™s probably a cold solder joint. This could be fixed it you have soldering skills, or you could get a new shield. I think there are a couple of people selling them currently.

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28

Heat sink that drives the left motor? What exactly are you referring too?

29

Attach%20Arduino.jpg4160Ɨ3120 1.29 MB

Your shield and heatsinks may look slightly different, this is the original version, but you should have attached the included heat sinks to your drivers during the building of your kit. Whichever side is giving you troubles, try pressing down on it and then running your test.

1 Like
30

Okay, I will give that a try

31

This is the thread where people reported their chips falling off, possibly due to a bad solder joint, or overheating of the driver.

1 Like
32

Thank you!

33

Alright, so I looked into that thread, I did buy my machine in the batch after the one with the chip falling off problem, but I still took a look at mine. The chip was still very secure. I did glue the heat-sinks onto the chip pretty soon after I got my machine because they kept falling off of the chip. could this be causing the problem? I would be surprised because of how long my machine ran with the glue I used, but I donā€™t know all that much about the board itself. Should I have used a different glue? Could the glue be interfering with something? @Jatt @Gero

34

I canā€™t diagnose remote, but have fried 3 shields. Where this post is now, i would not exclude the left chip to be burnt. Is there a history of a chain wrapped around the sprocket or are you using a heavy sled (whatā€™s the weight)?

Between the heat sink and the chip there are 2 kinds of ā€˜thermal pasteā€™ you can apply.

  • ā€˜thermal pasteā€™
  • ā€˜thermal paste glueā€™

Using anything else will isolate the chip from giving itā€™s heat off to the heat sink.

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35

My sled is of normal weight, no extras added, and the chain has not been wrapped around the sprocket.
thank you for your quick response! I guess I probably need a new shield then?

1 Like
36

You seem to have excluded everything else. What glue did you use?

1 Like
37

A dab of superglue, it must have worked for a period of time because I used my Maslow a lot since I glued the heat-sink on. It must have been dispersing some heat, but not enough heat.

38

A new shield is worth a try if the budget allows and if it was not the issue, to have one spare is never a bad idea.

1 Like
39

Yes, I was just looking and it seems that the Maslow Surplus Shields are out of stock, and MakerMadeCNC does not sell them separatly.

40

Price is :-/ but it survives more currents :wink: