It took way too long (life came in the way) but I printed 3 calibration cubes (10,15,20mm) and all of them were spot on (highest deviation was 0.04mm)
Just did check the step files, I see the problem. I will edit this post with a link to the possible fix, horizontal expansion won't fix it since is a Z problem. Give me 5mins or so and recheck this.
Edit:
Try this
https://www.dropbox.com/s/s9x2a8e0wett1kh/Joke-Fix-test.stl?dl=0
I'm 99% sure that should fix the issue. I left way too much play so it can swift.
There are 2 versions, one is slightly shorter, or longer. The short one might work better for 2.85 (less chances of flattening the filament if you use a spring too strong, that also could explain why your dances too much, is normal since is pushing so hard that the force goes to the weak point of the design, I use a very light springs and depend on the Latch lock to leave the distance fixed and use the spring system to compensate for filament size variations, but without pushing too hard.
If when you print the parts you fell that they have too much friction to install, sand them slightly until it goes ok, but without play.
Btw thanks for the feedback men!
Edited by Guest
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derbroti 4
It took way too long (life came in the way) but I printed 3 calibration cubes (10,15,20mm) and all of them were spot on (highest deviation was 0.04mm)
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neotko 1,417
I have changed all my extruders to zge direct drive. You could try to print the joke with + 0.10 horizontal expansion, that should make the rumblings get away. Sorry I have dismantled all my feeders and it will take quite some time to assemble them.
Sorry men I'm so freaking busy lately.
One thing for sure I think all my printers before where overextruding a 0.10mm aprox. That could explain why that design has so much play when printed right.
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