Pete, this mill should be easy to convert, it is very straightforward
in operation. Not sure how easy it would be to mount an encoder on the
spindle, mechanically, this may be an issue.


i

On 2013-03-11, Pete C. wrote:

Jon Elson wrote:

Hench wrote:

anyone still talk about it here?
Boy, I had hoped after the election we would be able to get back
to it, but it doesn't seem so.

Jon

There will be metalworking talk here in the very near future. After
visiting Iggy a couple weeks ago and hauling home a rather heavy
Lagunmatic 320, I will be getting it running and checked out and then
rapidly getting into retrofitting it to PC/LinuxCNC control.

On the retrofit end, I'm looking at your PPMC line trying to determine
what I will need. It looks like it should be a relatively
straightforward retrofit since this is a 1992 vintage machine and thus
avoids some of the oddities of older machines like resolvers.

Overall machine specs:

Three axis with Baldor servos and Baldor servo amps +/- 10V input
Quadrature encoders w/ differential output with index (not sure CPR yet,
presume 2000 or better given the age of machine)
Saftronics/Yaskawa spindle VFD, 0-10V/F/R control (no Modbus)
Usual home/limit switches (9 inputs)

I will want 4th axis support, so am I looking at one of your 4 axis D/A
for the servos, and a second one for the spindle control? Same for rigid
tapping, do I need an encoder card for the 4 axes and a second for a
spindle encoder? MPG input via encoder card or DIO card? Package
discount?

Thoughts on using a touchscreen with LinuxCNC? Is it worth spending the
$500 or so on a TS monitor? Where are the best forums to review for info
on your PPMC and LinuxCNC? I looked at some of the referenced forums and
don't see recent posts in many of them.

If you want to PM me: a u x 3 4 (at) w p n e t (dot) u s