Vactra #2 Way Lube, that and a few other lubes came highly recomended by both Tormach and other users here. I picked Vactra2 because the word "Vactra" is cool and fun to say It comes by the gallon from MSC. I bought a rebuilt Pentium PC with windows XP Pro from Blair Technology Group on eBay for $189.00 total (includes shipping), installed the Mach3 and started eating aluminum the same day. The Tormach PC although perfect for the package I am sure, costs waaay too much for me. I need better advice on what end mills and face mills to buy, but my limited experience so far tells me that HSS works better on Aluminum than Carbide for surface finish. But I am buying cheap Atrax carbide and expensive HSS Niagra and Cleveland Twist, so that might be my problem. My aerospace friend insists on OSG Cutter for everything so I am going to get some of those next. Build your stand rigid, really rigid, a short rapid move of the table will flex your stand and things will wobble around. I built my own computer arm and monitor stand and saved $300.00
I just picked up a big piece of aluminum flat bar and will build my own high speed spindle attachment this weekend. I am mounting a Porter Cable router off to the side of the spindle so I can engrave and do Lithophanes in Corian.
If you don't mind, what kind of electronics are you into? If it is a secret then we all fully understand
P.S. I was amazed today at how cheap getting aluminum anodized is! For the product I am working on they quoted me .40 Cents per item, I thought it would be like $5.00 or something, it pays to check these things out.
BlueFin CNC LLC
Southern Oregon