3d printers

An easy fix for inconsistent layers in cheap 3D printers

If there’s one thing you can say about [Stefan] of CNC Kitchen is that he is methodical when working to improve his 3D printing processes, or when tracking down a problem with a printer. Example : this root cause analysis of extrusion inconsistencies with an entry-level 3D printer.

The printer in question is a Cetus MK3, a printer that has found its way onto many benches due to its ridiculously low price and high quality linear bearings. Unfortunately, there’s still a lot to be desired about the printer, and its tendency for inconsistent layers was chief among [Stefan]’s reproaches. Such “blasphemy” can be pinned on any number of issues, but rather than guessing, [Stefan] went through a systematic process of elimination to find the root cause. We won’t spoil the ending, but suffice it to say that the issue was subtle and could likely be the cause of similar issues with other printers. The solution was also easy and completely mechanical – just a few parts to replace. The video below shows the entire diagnostic process, as well as before and after comparisons. [Stefan] also teases an upcoming treatment on how he converted Cetus from the equity-owning control board, which we’re interested in seeing.

If you haven’t checked any of [Stefan]’s other 3D printing videos, you really should check them out. Whether it’s dampening vibrations with a concrete paver, salt annealing impressions for added strength, or using finite element analysis to optimize infills, he always has an interesting take on 3D printing.

[Baldpower] told us about it. Thank you!