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So say you want to cast a 1"x1"x1" cube. How big must you make the sand cast to get as close to this number as possible. Anyone have a good book reference that isn't to technical?

Looks good! I have a cncmasters rf31 conversion and when I saw your brass ballnut holder for the short axis I laughed. I have the same one holding my ballscrew, what a pain it was to remove! The oem jb welded it in for a more solid connection since only one bolt holds it. They should have had...

Awesome, like the keyboard!!!

Check your runout now, if it looks good no point in upgrading. A quality ground collet as balanced nut will be the cheapest way to reduce tool vibration. Technik offers high quality mini collets that can be had for a good deal on eBay. Don't cheap out on Chinese end mills either. Spend a couple...

Hello I build stuff! I joined this forum (cnczone guy here) just because you did a fantastic job with your lathe. I just bought the same one from a guy minus a chuck or auto tool changer for $400 bucks. I was going to go with a 5C to 3 jaw 4" chuck. No tool changer, but it did come with a...