- Joined
- Oct 29, 2012
- Messages
- 63
I use spiders on tubes also. Everything from 4 in. dia. To 18 in. They are pretty easy to make. Just a piece of round stock with 4 tapped holes in the OD, and center drilled. I back them up by sandwiching a chunk of wood between the spider an the chuck. Works good, but you have to be careful to balance safely holding the workpiece tight enough and deformation.