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jon-harper / E34M1

EVA 3 modified for the Mercury One.1 3D printer
https://jon-harper.github.io/E34M1/
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Belt holder a bit too high (Merc One.1, v1.1.3) #6

Closed k-piekarczyk closed 1 year ago

k-piekarczyk commented 1 year ago

Hi @jon-harper! First of all I love that you adapted EVA3 for Merc One.1, and the fact that you took your time to show some assembly instruction.

The belt grabbers seem to be 2-3 mm to high (at least for my setup), as pictured.

photo_2023-04-19_23-40-26

Would you be willing to share the STEP file for the front mount (the one with holes for ADXL345), so I can fix that for myself? I couldn't find it in the files already in the repo, but maybe I missed it.

jon-harper commented 1 year ago

First, here's the latest Core assembly STEP file. For some reason it wasn't uploaded.

OTOH, you should not have have that angle on the belts. The only time I've seen this is with the early revision front before the belt catches had a divider. I can't see from this angle, but the belt catches should look like this:

image

If you have an older Front piece without the divider you can still straighten the belts; it just takes more fussing.

If none of that helps you, can you send pics of both sides of your belt catches?

k-piekarczyk commented 1 year ago

From what I can see, the front I got from the documentation website (11.04.2023) is different, the new one should fix my issue, I'll find out diring the weekend :)

Disaster1971 commented 1 year ago

Same Issue I'm having with my belts. I think it might be effecting the bltouch mount to were the nozzle sitting higher then the bltouch

jon-harper commented 1 year ago

At this point I'm considering this an open issue in need of a fix. I'm recovering today from traveling but plan to test a solution tomorrow.

jon-harper commented 1 year ago

Two of us are now running the modified front from this commit and it looks good.

The belt catches dropped 1mm. Both experimentation and measurements keep coming up with exactly 1mm, so I'm suspecting I made a math error along the way in CAD.

Considering printing the new belt grabbers, as well. They do a better job engaging the belts without bowing.

k-piekarczyk commented 1 year ago

The v0.1 version of the front works fine for me now, though I must admit that the new belt loop instead of the earlier open back design was inconvenient to mount, since the top of the belt loop drooped a bit, making it impossible to just push the belt through.

image

jon-harper commented 1 year ago

The v0.1 version of the front works fine for me now, though I must admit that the new belt loop instead of the earlier open back design was inconvenient to mount, since the top of the belt loop drooped a bit, making it impossible to just push the belt through.

I think you may have the wrong file. It sounds like you printed an older test version that I accidentally committed and later replaced. Not sure what happened, but the version I linked should be labeled v0.2. It's the latest stock_front.stl in the testing branch if you want to grab it from there.

jon-harper commented 1 year ago

Several users are running v0.2 now and it's merged into main. :+1: