I came across this researching my current thread Jello-like resin - #4 by hoolito
There’s some people saying sanding increases adhesion, because of extra BP roughness, and some people saying it decreases adhesion, supposedly because resin buildup might increase adhesion and by sanding this buildup goes away.
I have a Form3 and about 185 prints, about 12 liter printed all engineering resins. I have 2 build plates sharing the load.
These pictures show microscope screenshots of one of the build plates. They don’t seem to show any buildup
And these are pictures of my second BP, which I’ve just sanded with 400 grit. Although the print had good adhesion afterwards (Flexible 80A), I see sanding actually smoothes the surface…
I don’t think I’ll sand my second BP…