nealbert
Plastic
- Joined
- Apr 16, 2015
- Location
- Texas, USA
We have a small 12 x 36 manual lathe that refuses to deliver a smooth, uniform surface finish. The photo shown is a piece of 1.5" OD x 0.125W DOM mild steel tubing. Spindle speed was 288 rpm. HSS tool lubed with oil. This is after polishing with 400 grit sandpaper.
The striations appear regardless of spindle speed.
I thought I had the problem fixed a couple of months ago. I discovered that the Feed Rod was bent. While I was straightening the Feed Rod one of my business partners remembered that the movers had strapped the lathe into the truck by wrapping a strap around the feed rod. Aaarrrrgggghhhh.
Anyway, the problem still exists.
Any speculation as to a solution to this problem? Something else messed up inside the carriage? Any help is appreciated.
Signed,
Distraught in Dallas.
The striations appear regardless of spindle speed.
I thought I had the problem fixed a couple of months ago. I discovered that the Feed Rod was bent. While I was straightening the Feed Rod one of my business partners remembered that the movers had strapped the lathe into the truck by wrapping a strap around the feed rod. Aaarrrrgggghhhh.
Anyway, the problem still exists.
Any speculation as to a solution to this problem? Something else messed up inside the carriage? Any help is appreciated.
Signed,
Distraught in Dallas.