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Geeetech I3 Pro B Anti Z Wobble

by Bebop182 May 18, 2017
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I like how it looks and that it has a round top in every direction but the mayor issue with this part is, that it's in contact with the x axis at both the thread and the smooth rod. This could make wobbles in some directions even worse. Instead it should look like this: 2763592
But I installed a washer between it and the x axis mount at the thread rod to gain some distance at the smooth rod and that solves the problem.
Also the mesh could have a bit higher resolution.

Hello petrow,

Actually the two arms weren't supposed to touch the linear bearing. But the way the X axis rest on the part, and the play between the lead screw and the threaded rod, even made the arms push against the bearing. This combined with the printed part being slightly shorter that the 3d model. It was a super tight fit.

However in testing this didn't appear to impact much, the visible lines caused by the wobble I was suffering from were pretty much gone so I was happy with it. I printed a lot of variant of this at the time, some much taller. If I can find the files I'll upload a more recent one. I may even put a subdivision surface modifier in there for the smoothness =D

I was used to make low poly models for games prototypes, so even now I always put as little polygon as I can to convey the geometry.

Thank you for trying it out

Indeed, yet an other one BUT not a good one !

What is your issue with this one? Can you make a constructive comment? Challenge issued

You want a "constructive comment", simple, do a search, see what others have done and try to understand the why and how ! A challenge, indeed.
You guys never learn !

Or you could print the actual part and see for yourself, then comment so you can share valuable criticism instead of boring people with your bible.

Just saw your Y mod using tie wraps ! Ridiculous !
No time to waste with your poor "solution" when I have already a far better one ! In fact others who did the same as yours are better and the fact you can't see why, proves my point.
Just a warning for others as this comment section is in fact for everyone to see.

Your attitude is typical of a know nothing who can't accept any criticism ! Bye !

wtf, how can one be so arrogant :D

Talking about attitude, yours is mind bugling. You claim you have "No time to waste" yet you went way out of your way to spit psaum in a manner you wouldn't even dare to have in front of a person. And if arrogant and disdainful comment is what you call valid criticism I have a hard time picturing you working with anybody on anything but a pet project in a corner of an office.

On the actual part, I never claimed to be a designer, I craft software for a living. What I identified as requirement for this piece is minimal friction surface and no play between the arms and the smooth rod. At 0.3mm the wobbling is gone, at 0.2mm the surface is pretty neat yet still has some imperfection when put under light, but most likely due to other factors.

So it may not be perfect but it does the job I intended it to do. As did the Y brackets, and both are easy to print, and require no extra part.
I'm always open to criticism, but none of your comment qualify nor help any third party reader.