Lawnboy wrote:It's been a bit of a frustrating week. I started making the disc mask to replace the one I was using for testing purposes (just a piece of cardboard with a square hole in it), and noticed that something was a little off. Turns out that the disc is about a quarter of an inch too far in so the raster is not in the center of the projector gate. Earlier in the project I replaced the base with a thicker, more sturdy piece of wood and transferred the measurements and screw holes over directly, but apparently something went wrong. The projector was designed to take full-size slides so the gate is large enough to handle the miscalculation without shading any of the holes, but the raster comes out of the lens a bit crooked and misses part of the mirror. I will try to reposition it this weekend.
When i was making my small one using a old dvd housing i used the part that ejects the dvd to move the nipkow from side to side for a position control.
My raster was to bent over a bit to i didn't worry to much about it it was more trouble to fix it i just moved the camera over a bit on its tripod.
Keep working looks good.