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Post by mike1332 on Nov 11, 2019 1:57:08 GMT
Seeing if anyone can lend some knowledge and tips to stopping the walking of the belt on the idler pulley. I have searched around the forum and still having trouble. Stuck on this step of the assembly.
I got the tension of the belt down nicely, but the belt tracks high on the idler pulley when moving the z axis towards the motor. It comes back down on the idler pulley when moving the z axis back over towards the idler pulley, but I believe this is only because the bearing wheels on the z axis are making contact with the belt as it gets closer to the idler pulley.
I have attached the anchors as shown in the instructions and made adjustments here as well in the slots, still no improvement. Is it possible that my zip ties are too tight on the anchors, causing a slight bend in the belt?
I've tried all adjustments, except the motor tilt adjustment. Not too sure how to go about that.
Thanks in advance
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Post by Derek the Admin on Nov 11, 2019 2:39:52 GMT
This relies on everything being perpendicular to the plane the belt is on. So if something be is off, like if a side frame piece was angled, you would have this trouble. The easiest thing to do is use a small piece of shim stock (like a cut up feeler gauge or soda can) to shim under the bottom of the idler bracket. That will likely get things going for you.
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Post by mike1332 on Nov 11, 2019 3:00:20 GMT
This relies on everything being perpendicular to the plane the belt is on. So if something be is off, like if a side frame piece was angled, you would have this trouble. The easiest thing to do is use a small piece of shim stock (like a cut up feeler gauge or soda can) to shim under the bottom of the idler bracket. That will likely get things going for you. Ok great. The angle should help. I will check to make sure my left and right panel are square first. Everything else has gone well and instructions are working out perfectly. Thanks for the quick response
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Post by mike1332 on Nov 17, 2019 13:41:56 GMT
Just to report back, I checked the box for squareness and my front right corner is off by a hair. It appears that the right panel is slightly angled. I tried my best to get this flush, but still having an issue with the belt riding high. I believe I need to shim the top of the idler bracket, not the bottom, as it made the issue worse.
Has anyone made anything to sit above the idler pulley to keep this in check?
Otherwise the machine is running great! I just push the x axis belt down every so often during a carve. Ran some sharpie tests and 4 test pieces in easel on some plywood. Tests came out great.
Just wanted to say that it was a great experience putting the machine together. Instructions were well written and the forum helped a lot when I got hung up.
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Post by Derek the Admin on Nov 17, 2019 21:48:18 GMT
Glad we could help.
Yes, to clarify: shimming it high on the bracket will help move it lower.
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Post by mike1332 on Apr 18, 2020 16:41:03 GMT
Just to report back on this matter, I cut out a small sqaure from a soda can, and folded it to get a bit more thickness. Shimmed in on the high part of the bracket. It still rides a little high, but no issues with the belt slipping at all.
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