Midnightlunchbox
Registered
Hello folks,
I need a wee bit of advice about threading.
I bought a set of Crown chasers a couple of weeks ago and learning them is my next project, when time allows. However, I'm a bit confused on a few matters.
Tool/arm rest for cutting female threads, is it necessary? Is it different than simply setting the lathe tool rest? It seems unnecessary to me.
Lathe speed. Ever article and video I've watched have differing lathe speeds from around 150rpm to 300rpm, does the lathe speed differ depending on thread pitch and project size? Is there a formula to work it out?
When the chaser is initially presented to the wood, the tool is moved in an oval motion at a steady rhythm. Am I correct in thinking this rhythm needs to be the same for both the male and female threads or they won't fit?
I've prepared a couple of blanks to have a bash on but with my hollibobs over I'm back to the Fortress of Despair, er, sorry I mean work, tomorrow it might be a few weeks until I get some garage time so I have loads of time to suss it all out.
Cheers
Craig
I need a wee bit of advice about threading.
I bought a set of Crown chasers a couple of weeks ago and learning them is my next project, when time allows. However, I'm a bit confused on a few matters.
Tool/arm rest for cutting female threads, is it necessary? Is it different than simply setting the lathe tool rest? It seems unnecessary to me.
Lathe speed. Ever article and video I've watched have differing lathe speeds from around 150rpm to 300rpm, does the lathe speed differ depending on thread pitch and project size? Is there a formula to work it out?
When the chaser is initially presented to the wood, the tool is moved in an oval motion at a steady rhythm. Am I correct in thinking this rhythm needs to be the same for both the male and female threads or they won't fit?
I've prepared a couple of blanks to have a bash on but with my hollibobs over I'm back to the Fortress of Despair, er, sorry I mean work, tomorrow it might be a few weeks until I get some garage time so I have loads of time to suss it all out.
Cheers
Craig