I have few pieces to make out of brass on my lathe at work, which make up a tiny tubing end forming tool that inserts into a soldering iron. Biggest dia of the parts is .200-ish. And a lot of features are much smaller.
I made up one rather than buying from the vendor that sells the tool- they want $900 for this!! Has a few critical diameters and radii, but it turned out great and I probably have 6 hours into making all the parts of this tool.
Now I'm being asked to make two more of these tools.... Because the parts are pretty tiny to be working on a bigger 3jaw chuck using shims as to not mar the surface of the brass, and I DON'T have a collet chuck (I keep asking for funds to buy one), we came across a cheapo asian import 7x10 mini lathe for cheap. I figured this would be easier to turn out these tiny parts on that thing, and I can tinker with a new toy in the process.
The dovetails and gibs on this thing are rough. It would work much nicer if these were finished better, I've seen where some guys have used lapping compound to work the dovetails in to a smoother surface. But I though this would be a good thing for me to look at hand scraping. If I screw it up too badly- nothing is really lost and replacement parts can be had for cheap. This isn't hardened material so I think I could do this without needing carbide scrapers?
So with that said, should I try tinkering with this?
I figure the first step I need is some transfer ink and a known flat surface to ink the bottom side of the cross-slide.
I think this could be a great learning process for me, and not much to lose if it doesn't turn out right.