Hardinge CHNC retrofit- Another one on the way!

Almost done with this conversion, this has been a long project, however the lathe is working pretty well now. Its very fast compared to the old servos. Max velocity is 600 ipm using 75% of the servos rated speed, I may up the speed a little later. I will be setting up a bar feed job in a week or so, I will post a video of it when It comes through.

last 2 things I need to do is get the vertical slide ladder program working with its custom M code I cant seem to figure out how to pass a variable to the M code from inside a g code program. I also need to have the ladder program turn on the vertical slide untill it hits the bottom limit switch. I beleive I need to use a sealed circuit witha reset coil connected to the limit switch. Just not sure if I can call out a classic ladder pin directly inside my custom Mcode? Anyway here is a video of it cutting some thread, and some pics.

python example using sim example configs/sim/axis/axis.ini:Execute mdi:results in:

Thanks guys, passing a variable to the M code is working now, however I cant seem to get the mcode to work. the M code shoud control the vertical slide as well as extend the part catcher slide when the part is cut off. The first part is the vertical slide start, the second is the part catcher extend.

Here is the M code


#!/bin/bash
delay=$1
outtime=$2
halcmd setp classicladder.0.in-11 1
sleep1
halcmd setp classicladder.0.in-11 0
sleep $delay
halcmd setp hm2_5i23.0.gpio.064.out 1
sleep $outtime
halcmd setp hm2_5I23.0.gpio.064.out 0
sleep .5
exit 0



Inside my Hal file is the following

net vert-slide hm2_5i23.0.gpio.048.in => classicladder.0.in-12
net slidstart hm2_5i23.0.gpio.070.out => classicladder.0.out-11

The script does execute, well the second half of it anyway. It's the classic ladder section that's not firing. I think I see the problem now though, I think my arrow notation is incorrect. I think it should be

net slidstart hm2_5i23.0.gpio.070.out <= classicladder.0.out-11

not

net slidstart hm2_5i23.0.gpio.070.out => classicladder.0.out-11

The arrows are just for looks (and ignored by linuxcnc)

Well I threw in the towel on getting the ladder to work with the limit switch, I'm just running the vertical slide on a timer for the time being. Anyway here is a video of a bar job I spent the last 3 days running.



This project is pretty much done. Next is a 3d printer!

thanks for all the help guys, Linux cnc rocks!

Another video of a barfeed job. Cutting 4-40 threaded standoffs.