[Resolved] Belt not tightening, just slips

It will bent back again. Also problem here is there is nothing under the belt to hold together. That’s why I insert that nut. If you don’t want to disassemble again, you can insert thick enough metal piece to support that down push. Target is pushing belts teeth tightly to each other. I hope helps.

1 Like

It’s been 14 days. still holding, no belt adjustment made since then. Just for the reporting.

1 Like

It’s been 36 days. Still holding.


Same here, with zip ties, for 57 days.

You didn’t have X-carve 119 days ago.

lol, my bad… correct.
my math is off today
corrected to 57 days

I’ve had it longer, but on May 27th I readjusted the belts and added new zip ties. I also posted this:

1 Like

This is how I did my belts:


:wink: When I waste first Stock spindle, you were giving a battle with Custom. That’s what I remember. I’m just kitting. You’re good man.

@AlanDavis I definitely had a battle with customs… I think they won big, but that was well before May 27

@DallasPowers nice clean look. When my belts need replacing, I’ll probably go that route.

1 Like

For the issue of the belts slipping, I found a quick and easy solutions that does not involve cable ties, tape, heat shrink or anything else along those lines: Simply loosen up the screw on the belt hold-down bracket, fold the belt material that is hanging out around the front part of the hold-down bracket and under the edge of the bracket and then tighten the bracket back down onto this folded piece of belt.

This only takes a few minutes to implement and will completely solve your problem with the belts slipping.

Well, that’s a method that had never occurred to me… reversible too! nice!


I think a mod on the belt clip will do a good job with the slipping. Make it with three openings for sliding he belt inn. Much more friction this way. This clip will not take opp much more space if done correctly.

I agree with the zip tie solution. It solved my problem. My machine was hanging up and rubbing on the y-axis (some screws were dragging underneath the chassis). I used the zip ties to tighten the belts, and sprayed wd40 on the run points. No more drag. Clean cut.

1 Like

Is this issue still ongoing? I purchased my x-carve in the recent lot that you sent to Europe, through Robosavvy.

Should I use zip ties still? I am about to be in that mounting area.


Using heat shrink tubing to lock the teeth together looks better (in my opinion) and it works perfectly.

Is that included with the X-carve?

If not, what is the correct diameter in mm of the heat shrink tube?

It is not included in the kit. I used 1/4 inch diameter.

Let’s see if I found similar measurement in Europe, where we use the metric system.

One quick question, the belts can be untied and re-tied without having to dissasemble other parts right?
(Because tomorrow everything will be closed, and I want to finish the whole build, and then I will apply your solution on monday)

Thanks a lot for helping Allen ! :slight_smile: