#1 of 3 Z-wheels loose. Motors binding when tightened

1 messages · Page 1 of 1 (latest)

lusty bison
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TLDR: Ender 3 S1, each side of the Z-axes have 3 wheels as is fairly standard, , one inside with the eccentric nut and two on the outside. Left side bottom wheel is loose, right side top wheel is loose. When I tighten the eccentric nut to the point where the loose wheels get a bit of grip, the z-motors bind/skip during travel without a bit of help from my hand. No matter how loose I have the nut, the two tight wheels always feels tight, unsure if this is normal, or how to correct if not.

Longer version: After almost 2 years pgraded my firmware from stock so I can actually make use of the level probe beyond z-offset and unlock some other nice features. When setting the x-y tramming, I found manual tramming to give me different results to the probe tramming - resulting in inconsistent first layers when set to the probe's version of tramming. Did some googling, apparently could be a twisted extrusion or an issue with printer geometry, when checking the printer I noticed the outer bottom wheel on the left, and outer upper wheel on the right of the z-screw mounts were not making contact whatsoever, so thought this could be a possible cause why the probe vs manual tramming was off. I've tried tightening the nuts to the point where both wheels rotate with the Z motion but this causes the motors to skip/bind without a bit of help in areas. I feel that there's a chance my x-rail could be skewed with respect to the two z-lead screws. The bed wheels and extruder wheels adjusted perfectly, just this damn z-axis.

I hope this rambling makes sense, any help would be appreciated. Again printer is an Ender 3 S1.

noble prawnBOT
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AI Help

It sounds like you are experiencing issues with the wheels on your Ender 3 S1's Z-axis. It's important to ensure that all the wheels are properly aligned and in contact with the rails for smooth movement.

Here are a few steps you can try to troubleshoot the issue:

  1. Check that the eccentric nut on the loose wheels is properly adjusted. Make sure that the wheels have just enough tension to grip the rail, but not too tight that it causes binding.

  2. Verify that the Z-axis lead screws are aligned and straight. If there is any skew or misalignment, it can cause issues with movement and leveling.

  3. Ensure that the wheels are mounted securely to the frame and not loose or wobbly. Tighten any screws or bolts if necessary.

  4. Check for any debris or obstructions that may be preventing the wheels from making proper contact with the rails.

If you have tried these steps and are still experiencing issues, it may be helpful to reach out to the manufacturer or an experienced 3D printing ...

WARNING: This response is AI generated and may contain errors.