Build Your Own SLA/SLS

As I was designing my own version of a flex vat I always wondered why current vats are dimensioned the way they were. I use a HD projector (1920x1080) and I always have mine set at 100um so I 'only' need 192mm x 108mm. But I 'might' want to do 150um? I'm just typing my thoughts out loud as I too am ...

Sorry, I guess I didn't directly answer your question. The first part of the belt part number is usually the pitch length (theoretical circumference [not dia.]) of the belt.:-) http://www.bbman.com/products/belts/identify-timing-belts.html And yes, pitch is distance between teeth, and width is width...

There are several timing belt calculators out there. Keep in mind you will need a way to loosen/tighten the belt.

http://www.bbman.com/catalog/belt-lengt ... lator.html

I like the term binary. We are talking about trying to get accurate, flat resolution down to microns and trying to get that with a sloshing mix of resin and oil doesn't seem a good solution. The raising and lowering of the build plate creates a turbulent flow to liquids.

I was using 1.0.0.36 for my 'current' build. This is my quick synopsis: If I press pause anywhere during the cycle it will complete the next cycle. If i then press play it will continue with the process as expected. If, however, I jog the z up to inspect the part and then press play, it will complet...

Looks like the brake is electronically separate from the motor? I suppose you could turn it on/off with a relay controlled by the aurduino and gcode. Us CNC mill guys often use counterbalances to offset a heavy spindle on the z-axis. Is that a ball screw that turns so easily when the stepper is deac...

My machine is at work so I'll let you know Monday morning. I want to say I'm running 39? I'll try it again without resin to confirm.

I too am interested in the proper way to pause. I've only tried it a couple times and each time I pause; jog up; then press play to resume; the z always seemed to go to z- zero and dive my part into my flex vat. I never tried it again. I would use this feature all the time (like I do on my CNC mill)...

Do you have any updates on this FEP yet? I'm anxious to hear how it works for you.

Just curious if it was possible to leave the run time up on the screen when a print is finished? Currently the screen shows 'print complete' and erases the run time. It would be great to know the final run time when the print finished. I am never lucky enough to be by my machine at the exact moment ...