- Joined
- Nov 6, 2012
- Messages
- 128
On my 4in-4jaw 7x16 lathe chuck, the inside jaw depth is about 1-3/4” from from front jaw face to back. When chucking up round stock, would I be thinking right to figure pushing a workpiece further back than the rearmost jaw contact point gains nothing as far as grip strength and alignment accuracy? I’d be using a cut-off saw to make a workpiece 2” longer than the outer chuck jaw face for my project, and want to “waste” minimal 1” brass round stock.
From the other perspective, what’s the minimum chuck jaw contact that is advisable for safe holding and accurate alignment? I’m sure there are factors involved (jaw pressure, material, lateral cut depth, tool pressure, etc.) but is there a “rule of thumb” to consider, like 1/2 the jaw length?
On an outside jaw configuration on this chuck, the length from the back of the jaw step to the front of the contact area is ~5/16”, so that’s a given.
Plenty of basics to learn as a newbie!
BRET
From the other perspective, what’s the minimum chuck jaw contact that is advisable for safe holding and accurate alignment? I’m sure there are factors involved (jaw pressure, material, lateral cut depth, tool pressure, etc.) but is there a “rule of thumb” to consider, like 1/2 the jaw length?
On an outside jaw configuration on this chuck, the length from the back of the jaw step to the front of the contact area is ~5/16”, so that’s a given.
Plenty of basics to learn as a newbie!
BRET