Testbed #3 and threading
- Hello Group
Today I got all the parts finished and hooked up to
use testbed #3 to do threading.
It did good, even with a few problems.
The chain and sprocket system worked fine,I used #40 roller chain.
The leadscrew is a 3/4-10tpi allthread.
I power it by hand,with a crank on the lead shaft.It is kind of idea
that the 9x20 lathe group seem to use a lot.
It seems to work good because of the fact that when the slack is
taken up ,every thing is time correct.
I fastened the nut on the mill/drill table on the side of the ways.
I think the leadscrew on the concrete lathe could be on the front,
instead of the center and function fine.
It would simplify the construction of the machine a great deal.
You only have to build one leadscrew for it..