Build Your Own SLA/SLS

Not sure if this is the correct place for this question but seeing the subject title is "top down with resin" I figured it would be the best place to ask. Question: With top down set-ups, is it possible to simply pour the unused portions of resin back into its container until the next time...

What if the print surface piece had a bunch of holes even dispersed over the entire surface area, would that lower the Van Der Waals force enough where a NEMA23 motor along would be enough to pull up the print plate even with a 7.5" x 4.25" build envelop? I've read that a 7.5" x 4.25&...