Small lathes live and die by the bench upon which they are mounted. My little lathe has been struggling for the past year or so on a wobbly table and it’s really making me uncomfortable. The table is rated for 700lb, but my 350lb lathe is clearly too much for it. Because of this I decided to make a proper welded bench for my lathe. I spent the better part of a month on it and I’m extremely proud. The top surface is flat to within at least 10 thousandths of an inch and that’s more than enough to be able to mount the lathe and level it properly. Now that the lathe is mounted on a sturdy table the experience using it is 100% better. No wobbles and no worrying about 350lb of cast iron crashing down onto my feet. Also, the table has wheels to move it around, and levelling feet to keep it stable.
Category: Machining
Now that I’ve gotten the basics of lathe work (HAH) I’ve machined a pair of low voltage feedthroughs using copper for the conductor, PTFE for the insulator, and aluminum for the KF flange (threads are bad for high vacuum). Hopefully this will work and be a lot less leaky than the last ones.
Lathe!
I’ve been interested in machining and metalworking since childhood but with the exception of a REALLY old and unusable lathe I ran across in high school, I’ve never actually used any machine tools. That all changes now. I have just received a brand new Grizzly G0602, and will be putting this thing to work making proper high vacuum fittings ASAP- Once I figure out how to use it…
A Difficult Hole
I’m making a baseplate for my first high vacuum system and holy crap do I need some real machine tools. It took me an hour to get through this 1″ thick aluminum with a tiny drill press and a 4″ hole saw. Then afterwards I had to jerry-rig a sanding drum to smooth it out sufficiently. Safe to say I blew the tolerance and the hole is significantly oversize, but it’ll work.