- Joined
- Apr 8, 2013
- Messages
- 1,982
The issue of a lathe only doing 54 vs 112 or 200 TPI comes up a lot. I think it's a bogus parameter to compare lathes.
The challenges of making anything finer than 54 TPI would prevent any sane person from attempting this on a benchtop machine. The spacing of threads at 112 or 200 TPI is approaching the resolution of the pixels on your computer monitor. Most PDF files have a resolution of 72 Dots Per Inch and I don't think it's possible to cut threads at 112 or 200 TPI in a homeshop. At 112 TPI, you will need to use a sewing needle as a cutting bit -and most chucks cannot hold a piece of 18 ga wire.
Not trying to ruffle any feathers, Ray. The man asked for info on the G0750. The Grizzly catalog doesn't show the thread range of the G0750 so I thought that info might be of use to him. I did say" I think you'll be happy with either one".
Ed P