Squeak noise at sweep reset

Support & Troubleshooting
1

Hi there,

I’ve had quite a while with no problems out of my Form 3, but last night I had a failed print. At the same time a squeak noise has developed in the printer. It happens just as the LPU finishes a sweep and is about to slide back to the start/left position.

Several months ago I lubed the LPU positioning screw and the platform positioning screw.

Am I forgetting something to lube?

This squeak does not happen outside of a print job. It has not occurred early in the print, either. It seems to take about 20-100 layers to start up. Also does not occur if I simply go into the positioning mode where I manually move the LPU or platform around.

2

Thanks for posting! It looks like you are asking about a print failure or print-quality issue. As a first step, we recommend checking out this Formlabs support article: Diagnosing a print failure (SLA) | Formlabs (For a Fuse/SLS printer, please check Diagnosing a print failure (SLS) | Formlabs)
Once your issue is resolved, please mark the topic as Solved.

3

I asked the Google AI to collate results from this forum and it says:

  1. Re-lubricate the Far Right of the Lead Screw
  2. Lubricate the Far-Right Rubbing Block Rail
  3. Check for Tank Film Friction or Rollers

I’ll inspect and maybe re-do (1).

Not quite sure what (2) is in reference to. But I’ll inspect.

(3) does not appear to be relevant, but I’ll check again.

4

I lubed both screws for the platform and the LPU, plus the two rails that look like a bearing runs along them. . . and problem solved.