Re: [CAD_CAM_EDM_DRO] Re: Built first axis

starcast82 wrote:

>How fast do I need to go ? That is the question, I've built
>everything from scratch so I have nothing to compare to. Never even
>been around a CNC machine, That's why I'm asking. The way I'm testing
>is I wrote a program to toggle the printer port line and ran it into
>my controller. Then I put a ruler down and timed it. Kept reducing
>the delay in my program until I found the spot where the motor
>wouldn't turn anymore. Then I went with that. The motor isn't running
>out of torque because at top speed I put a 25 pound plate on it and
>it didn't seem to have any problem with it, as far as I can tell it
>wasn't missing steps, but can't verify at this point. I'm just
>wondering if where I'm at is a usable speed and go ahead and build
>the other 2 axis or if I need to rethink my design a little. I just
>have a lovejoy coupler going from the motor to the acme rod and then
>to a bracket with a nut on it. So I think that is considered direct
>drive. Just trying to verify I'm not wasting my time is all.
>
>

I think you are going to find 14 IPM a bit limiting. unless this is a
very small machine.
You probably won't need to CUT at 14 IPM, unless you put a router in
there and cut
wood or plexiglas. I usually rapid feed around 45-60 IPM when getting
from one side of
a part to the other, and do 25 IPM when aligning the vise to the ways,
etc.

Jon