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Post by godeman on Apr 10, 2016 4:14:28 GMT
Im having issues with the belts rubbing on the head of the bolt on item a15 on the right side the m3 closet to the front of the printer. Also where the idler pulleys in the front cross the belts over each other on plate B1.
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Post by bschafer on Apr 10, 2016 15:59:19 GMT
You might just add or subtract washers from the pulley assemblies, which raises or lowers the pulleys and belts relative to one another, to correct the problem. First see that you have the recommended numbers of pulleys in place...you probably do not.
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Post by bschafer on Apr 10, 2016 16:01:03 GMT
.......thats recommended number of washers in place at the pulleys. Correction
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Post by godeman on Apr 10, 2016 21:27:51 GMT
Yep, have the right number of washers in place as well as the 6mm stand-off/spacer. That was the solution I had as well however I still wouldn't mind knowing why it's happening with the original design, it's the curiosity; why do others not have this issue and I do? It just leads me to think something else isn't right and I just put a band-aid on the issue without fixing the root cause. I did tighten the belts a bit more and it also seemed to help with the rubbing on then m3 bolt head.
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Post by scottadams on Apr 11, 2016 1:49:47 GMT
I initially had my belts rubbing slightly at the crossing point at the front center of the printer. But they fixed themselves after a day or two. Looking at my printer I can't figure out how the belts would rub on any of the M3 bolts at all. The belt is a good 3mm or so away at the closest spots. Maybe you could post a couple photos showing exactly what's happening?
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Post by rock75 on Apr 11, 2016 14:57:33 GMT
I also had some rubbing for the first week or so. Then I realized I had forgotten to put a "twist" in each belt. After twisting the belt there was no more rubbing.
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Post by godeman on Apr 16, 2016 18:10:51 GMT
Well after looking at it again and running the break in gcode. I decided to modify the entire linear motion part of the printer due to it jamming up and warping the printed parts. Shouldn't be to big of an issue but the bushings are just to sensitive to things being a little bit off and I'm sure my son will get his little 2 year old hands on the printer while I'm not looking. So instead of dealing with these issues again I'm going linear bearings and all metal mounts and brackets. Once finished ill post some photos and may possibly have extra brackets cut should anyone want to modify theirs. It's a good machine but I'd rather not keep printing more parts until I get it to work.
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Post by animoose on May 4, 2016 22:54:17 GMT
I think I am seeing some rubbing belts as well. I'm not sure. This picture (https://goo.gl/photos/QzE36ApW4NNLYBvq7 - front on the left, left at the top, to be confusing!) shows the front left corner and it looks like the teeth of the lower belt rub against the flange of the upper bearing. In the picture, this is the belt you can see vertically, i.e. running along the front frame of the print.
I wonder if it would work to change the bearings to one with a slightly smaller outer diameter such as F605zz instead of F625zz - 14mm instead of 16mm. Are there any downsides to doing this?
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Post by szqcucoo on Nov 2, 2020 19:47:28 GMT
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