1 Topic by pricecg44

  • pricecg44
  • Member
  • Offline
  • Registered: 2014-12-20
  • Posts: 135

Topic: Replacing x axis motor wire bundle.

Having had an error 030 x axis error due to one wire connectivity breakage,
I am wondering if replacing the whole wire bundle will ensure this is not a continuing problem
1). The Chinese wire has steel wire, proper wire should have copper, as my reel of wire has.
      Is copper less fatigue prone cf steel?
2).  Not have the bundle flexing hard at the motor head, ie I removed the two bundle straps on the sides. The bundle now flexes less hard at the end of the bundle where it goes down to the motherboard.

2 Reply by carl_m1968

  • carl_m1968
  • carl_m1968
  • Member
  • Offline
  • From: Far North almost not Dallas
  • Registered: 2014-10-17
  • Posts: 6,512

Re: Replacing x axis motor wire bundle.

I am more inclined to believe the issue is in the X home sensor harness rather than the motor. The machine does not know if the motor actually turns on and runs or not. All it knows is that the home sensor was not triggered when it should have been as in the unit never homed that axis. Or while printing it get an intermittent on the sensor which causes that new spot to be marked as home and your print to shift.

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.

3 Reply by pricecg44

  • pricecg44
  • Member
  • Offline
  • Registered: 2014-12-20
  • Posts: 135

Re: Replacing x axis motor wire bundle.

No, it was the orange wire on the x motor. What does a nonfunctional x sensor do? Presumably the x motor would keep trying to home.

My concern is I fixed one wire but are the others next. Having cut the bundle holding straps it now flexes in a different position, so hopefully the lifetime till breakage will be extended.

4 Reply by carl_m1968

  • carl_m1968
  • carl_m1968
  • Member
  • Offline
  • From: Far North almost not Dallas
  • Registered: 2014-10-17
  • Posts: 6,512

Re: Replacing x axis motor wire bundle.

pricecg44 wrote:

No, it was the orange wire on the x motor. What does a nonfunctional x sensor do? Presumably the x motor would keep trying to home.

My concern is I fixed one wire but are the others next. Having cut the bundle holding straps it now flexes in a different position, so hopefully the lifetime till breakage will be extended.


A nonfunctional sensor would be seen as an active low and thus that position the system is in at that time would be marked as home. That is the flaw in the Da Vinci home sensor set up as they use a low instead of a high to indicate a blocked sensor AKA homed sensor. So any time a sensor drops out even for a moment that position now becomes the new home for that axis and all activity on that axis shifts accordingly. I had a 1.0 and this was one reason I gutted it and replaced all the electronics and sensors. I was one of the first to pioneer the idea of replacing all the garbage that Da Vinci put into them. In fact I had the 5th 1.0 based on it's serial number.

Printing since 2009 and still love it!
Anycubic 4MAX best $225 ever invested.
Voxelabs Proxima SLA. 6 inch 2k Mono LCD.
Anycubic Predator, massive Delta machine. 450 x 370 print envelope.

5 Reply by pricecg44 (edited by pricecg44 2016-08-04 21:38:18)

  • pricecg44
  • Member
  • Offline
  • Registered: 2014-12-20
  • Posts: 135

Re: Replacing x axis motor wire bundle.

Hmm, I suggest the x axis stop sensor is better with an active high. Ie a disconnect failure due to wire bundle flexing causes an offset failure rather than a motor not stopping at the end. Would this burn out the stepper? Or maybe the motor grinds away at the other end due to offset in the middle,  so either way is mute.

6 Reply by cmcc

  • cmcc
  • Member
  • Offline
  • Registered: 2015-10-09
  • Posts: 61

Re: Replacing x axis motor wire bundle.

I sell replacement Davinci wire harnesses made with flexible shielded cnc cable or silicone wiring.

The straps at the end are for strain releif, you should ideally keep them atached. The crimp joint where the wire meets the connector is much more fragile than middle of wire.

7 Reply by medic.vince

  • medic.vince
  • Newbie
  • Offline
  • Registered: 2014-07-03
  • Posts: 4

Re: Replacing x axis motor wire bundle.

I hate that I email XYZ to see about buying a harness and they wanted to know what firmware, where I bought it, If I had a receipt and what not. All I wanted was to know if I could buy a harness. I ended up just soldering a wire to replace to broken one and now everything is fine.