Is 3D printing overwhelmed?

Registered since: 06/17/2013
My personal path to perfect 3D printing

Hello everybody,

Santa Claus was nice to me this year and gave me a 3D printer. It has now been assembled and the first test prints have been made. As expected, there are a few anomalies that can certainly be remedied through improved settings, both mechanically and electronically. And so I figured there are sure to be a couple of experts here who can help me. For this purpose I once printed out the boat that you always see in the tests. I would like to use that to make my problems visible.

Here we go:

1. Sunken surfaces

2. strange structure of the surfaces

I currently have two ideas, but I'm not sure I'm on the right track.

For one thing, I could imagine that mechanical play could play a role. The X and Y axes are both driven by toothed belts, which in my opinion are actually sufficiently stretched, but not too tight. The Z-axis is realized by recirculating ball screws. I have no concerns about that, as they are the load of the pressure mechanics and therefore there can be no play. The two are also easy to move.

But what I noticed is that the stepper for the filament tracking (gear against ball bearing) wants too much. It pushes properly and then jumps back a little relatively often in situations where a lot of filament is needed. But it doesn't slip, it really jumps back. The gear is also tight, which I checked by drawing a line over the gear and stepper shaft. But I don't find any setting here that I could use to influence the feed rate.

That should have been it for now. I'm curious what ideas you have about it. In any case, thank you very much for your help.

Oh yes, I am currently using Repetier Host with Slic3r as software.


Last edited by Porsti; 12/29/2017 at 10:38 PM.