Page 1 of 1
Plano-Convex + Plano-Concave
Posted: Fri Mar 05, 2021
by Joseph Leavell
Has anyone tested this combination? I found a simulator that indicated this would be a good combo put super close together, with roughly a 6in focal length, and a spot size of .1ish for like 15mm
Re: Plano-Convex + Plano-Concave
Posted: Sat Mar 06, 2021
by Dave Vigness
Check Russ' #200 video. He came across a double 2.5" combo curve down in the HD nozzle that he said gives super fine spot size for higher powered machines. Sits up around 20mm above the surface instead of down tight so less chance of junk on the lens and nozzle tip.