Hi All, I’ve been running lots and lots of tests to try and characterise the effects of laser flare. Basically it’s as previously described by @Monger_Designs and @RocusHalbasch - in that I am seeing bad flaking and corrugated surfaces on parts - on the faces of parts matching brightest flare side…

Ok so in reference to the quality of the print varying between the hinge side and peel side I haven’t verified it my self but now that multiple people have all verified it I assume even if it is not true on my printer there is a commonality between all the machines that do exhibit it. I’ve also been…

@RocusHalbasch Ok I am clearly wrong about there being levels in the support team. I think you are over thinking the optics issue here. If you are correct and there is something special in the geometry the laser beam is going through then why did @JoshK ’s “laser choke” work? I can not comment on th…

@RocusHalbasch - I never suggested that laser spot focus might be responsible for the issues. The reason I mentioned and documented the nature of the F1 laser focus - was to show that a simple aperture placed close to the laser outlet would not be sufficient to prevent the flare - or at least not f…

@RocusHalbasch You could also try asking them to look at this thread on the forum specifically @KevinHolmes posts at the start of this thread. Have you given any thought to way I said about a model that would show printer failure irrespective of orientation?

@EvanFoss and @KevinHolmes I think you are reading more into what I was saying than was intended. I am still very strongly of the opinion flare is what is causing the over-curing, so I still believe eliminating the flare with a choke or collimating lens or other method resulting in a sufficiently po…

I redid the earlier test just to see that the phenomion really does get worse when you set the printer to the smallest layer thickness. The one on the right is from the hinge side and the left is from the peel side. Please note that I did this with the freshly filtered resin just to be sure this is …

[image] EvanFoss: @RocusHalbasch You could also try asking them to look at this thread on the forum specifically @KevinHolmes posts at the start of this thread. Have you given any thought to way I said about a model that would show printer failure irrespective of orientation? I have asked th…

@EvanFoss so what is the resolution of the top image and what is the resolution of the bottom image?

Oh those are the same part just rotated to show how bad it is. Probably +100 posts ago I did the same prints at 0.1mm instead of 0.025mm just to see if I had this problem. I wanted to repeat the experiment at the finer resolution to to satisfy in my own mind that the issue is flare related.

@EvanFoss that was post #176 . And they do look way worse at 25um. So like I stated earlier I still think it’s flare, but I don’t see how the fact that the artifacts are worse at lower resolutions confirms it. Could you explain?

Form1+ laser flare issues illustrated - pics and video - #307 by sam_formlabs - Support & Troubleshooting

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