Making some tiny parts on my Sherline with TinyG. Dimensions not quite there yet (original is on the far left). Oh, also they’re all sooty from where I burned off the epoxy and not yet cleaned up.
Those are brilliantly small. Totally impressed. Is that aluminum? Hard to tell.
@jlauer Thanks! Brass. 1 mm end mill at ~10k rpm (Sherline max speed).
OK. Homerun. your very worth watching sir.
Do you have a video on this? The size you achieved is epic.
… so you epoxied the stock material to a spoil board, then milled the stock, then burned away the epoxy to separate from the spoilboard? always wondered how to machine such small parts!
@Richard_Betel That was the plan, but it turned out the parts would still break away from the acrylic that the work piece was epoxied to before I could complete the cut.
So instead I ended up leaving about 0.10 mm uncut at the bottom of the brass and then flipped the work piece over and epoxied it down again (with liberal adhesive supporting each of the parts) and milled off the bottom. Then I chiseled the parts off and burned off the epoxy.
Acrylic is kinda brittle… Would maybe quarter-inch MDF work better? If you use hot glue rather than epoxy, you might also be able to use a hot air gun or soldering iron to remove the parts)
Could be. I tried aluminum with JB KwikWeld and they still sheered off. I’m also cutting them in only two passes, so the force is pretty strong.