I haven’t had time to do any test so with the work piling up just decided to go for it with the last part that failed seen here - Laser Flare & the effects on your prints - Part II
Before printing -
- Blew dust of the main mirror
- Prepared a fresh resin tray with fresh resin
Printed at 0.1mm later heights with clear v2.
Obviation -
- The print completed
- The surface quality is much better.
- There was some flaking
- The areas of the rearward face of the print have a mottled / pitting
type surface. - There was some part cured resin in the tray that needed to be
filtered. - On most of the forward face you can see the individual 0.1mm layer
striations which is perfect and what I would expect to see.
All in all there is a hug improvement, but as you can see from the photos there are still some issues.
So the big question is are they user related, machine related or just the limitations of the printer.
The part part shown is a segment of a cap and there are another 2, the same size, that need printing.
To rule out me not orientating the part correctly, I’m going to ask Formlabs support to orientate the next piece and then print it.
I haven’t opened up the back of the printer so haven’t examined the galvos or the small mirror - they should be clean as its just come back from repair.
While I’m waiting, I will get Sharon to take @RocusHalbasch, series of DSLR pictures to add to his laser pattern comparison document as I feel this is by far the best way to analyse the laser pattern (if you have the equipment).