Laser Cutter

[ABearden]

Felt weird going to a pet store and buying aquarium bits when I don't have any pets, but Lauren didn't seem to mind the time to pet everything. Picked up an aquarium aerator for my forced air setup (and a small tank heater for the resin printer). Just need to model and print the combined vacuum and forced air nozzle; positive pressure in the cone to keep the lens clean and negative pressure in the cylinder to keep my lungs clean.

Spent the rest of the day making an adjustable mount for the laser, then getting some of the mirrors calibrated. Didn't have any T-nuts handy for mounting to the extrusion, and I don't know of anywhere local that stocks them, so I improvised by grinding the heads of a few 1/4" caphead bolts to fit the extrusion slot. Worked great, but getting the mirrors right on a 1m x 1m table is a pain and I don't have an enclosure yet so there's lots of stacking of 2x4s until I'm certain where the mirror is initially pointed at each point. I'll have to finish that step up later.