1/26/2026 14:58:58 - 3D Printing - Prusa MK3S+ - Hermes

Red / Yellow Tag
1

Problem Type: Equipment
Workspace: 3D Printing
Asset: Prusa MK3S+ - Hermes
Summary: Irregular print
Additional Info: The layers of the print did not print correctly. Ripples instead of smooth sides

Report generated from a filing. This report has also been sent to Asmbly staff, leadership, and space leads with any contact info that was provided. Provide additional photos or resources here to help. When the problem is resolved, ensure it is marked.

2

IMG_4506
IMG_45061920×2560 138 KB
Here is a photo of how they turned out.

3

This is a common symptom of a printer that requires further adjustment of belt tension. :man_health_worker:

4

I adjusted the Y belt on Hermes on Saturday and got clean cylinders. If it’s not holding its tension, perhaps the belt needs to be replaced?

1 Like
5

I’m thinking the same too. I think we’ve already adjusted the belt at least three times since November’s volunteer day.

1 Like
6

I’ve ordered some replacement belt material. @JakeS, if you’re still around, would you mind putting a physical red tag on Hermes? There are some on the front of the big enclosure.

7

@aneel added a red tags to Hermes and Apollo.

8

I replaced the belt on Hermes and it didn’t fix the problem. We’re going to have to do some deeper debugging.

9

@flowmage and @Kenneth successfully identified the issue remotely (the grub screw on the Y-axis shaft had come loose), and @ewei fixed the problem. Hermes should be back in business.