Still no cut for me.
After replacing the faulty motherboard, I set off today to finally test the machine.
Except that when I positioned the machine a little too close to the edge of the work surface (what is it, anyway? I made a 4m x 2.4m frame), the machine did something strange. I saw a belt suddenly slacken or something like that. I realized later (once the machine had stopped) that a strap had gotten caught in the gears. So I guess my strap is ruined? (see photo)
I’m going to try to design a part to prevent this from happening again. After all, it wouldn’t take much to prevent this incident…
And the belt doesn’t seem easy to change. To access it, you have to take apart quite a few things !
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I would love help with making this part better. The guard here is supposed to keep the belt out of the gears, but it isn’t perfect…although it has become a much less common issue since we added it.
If you can think of a way to make it better I would love to!
Hi Bar,
Yes, I was thinking of making a guard to surround the cogwheel. I would also need to modify it to prevent the belt from getting caught. Could you send me the front of the belt guard in SVG or SXF format? I have already modeled the cogwheel, so it would save me time…
Based on your experience, would PLA or PETG printing work with the steel cogwheel? I imagine there’s a reason why your parts are injection molded in PC…
You can find the original CAD models for all of the bits here: Source — Maslow which might help.
Here is the top surface of the belt guard as a .dxf, but I’m not sure that is what you are actually asking for.
Belt Guard.dxf (96.0 KB)
I think that this is a great idea, but don’t forget about maintaining clearance with the motors on the other arms
I tried, I failed… parts printed in PC, perfect fit but when used, the gear teeth broke after a few minutes. Apparently, printed PC is not as strong as injected PC…
Perhaps a fiber-reinforced material would be stronger?
Attached is the STL file for those who want to test it. As for me, I’m going back to the original parts, hoping that the belt doesn’t get stuck again.
Bobine.stl (926.5 KB)
Carrenage bobine.stl (198.5 KB)