An open source Emco 120P lathe tool turret control

you might also check with laserberry as he mentioned he was going to order a set of bare board fabs as well.

Hi, can someone confirm that the turret electrics are the same in Emco turn 120P and the Pc Turn 120 before i order the pcbs?
Here is the schematics for the PC Turn.

I can now confirm that the card woks with my PC Turn 120.
The trouble i have is that linuxcnc isnt sending any commands to the board.
Have tried sending commands through the arduino serial monitor and the board responds as it should by changing to the tool i wanted.
If someone else will have a go, just send the toolnumber in the input field (1-8)

I am also at the point where I need to talk to the toolerator3000 from Linuxcnc. I modified the HAL with these lines

loadusr -W toolerator3000

net tool-change iocontrol.0.tool-change => toolerator3000.toolchange
net tool-changed iocontrol.0.tool-changed <= toolerator3000.toolchanged
net tool-number iocontrol.0.tool-prep-number => toolerator3000.toolnumber

but I am not seeing the toolerator3000 or the tool change in general. How do I add a GUI window for the toolerator3000 and control it from within linuxcnc?

LutzTD, can you control the toolerator from arduinos serial monitor?

I can see the toolerator pins in the hal and when i set them up in the hal watch window and type T2 M6 G46 nothing happens.
Might have something wrong in the hal file.
Have added
loadusr -W toolerator3000

net tool-change iocontrol.0.tool-change => toolerator3000.toolchange
net tool-changed iocontrol.0.tool-changed <= toolerator3000.toolchanged
net tool-number iocontrol.0.tool-prep-number => toolerator3000.toolnumber

instead of the old code but might need something more
Will post my ini and hal file tomorrow.

Also planning to make a pcb that enables you to control the axis and spindle with the original drivers and vfd, still have some things to figure out yet.

Have a PC Mill 100 and another PC Turn 120 to convert if i manage to get this machine to work as expected.
Will post my findings in another thread.

Hey Robban, I had thought about using the original parts but read that the original drive boards are not very reliable and they are very costly to repair. I also did not want to use the transformer and 3ph input. With the stepper drivers and vfd I have my main supply is standard 30A 220 1ph, so I can plug in the lathe anywhere in my shop. Are you intersted in any of the original parts? I have not sold any of them yet.

LutzTD, I have 380V in my workshop so thats no problem for me, The drivers and steppers you have are 5 phase. I have 3 phase steppers on my pc turn 120. if the drivers fail i can buy a Leadshine driver quite cheap so thats no problem for me.

Have attached my hal and ini file!


When i looked at the hal file saw that i forgot to add:
net tool-prepare-loopback iocontrol.0.tool-prepare => iocontrol.0.tool-prepared
Will try and add it tomorrow and see if it works

It worked, Now i can focus on the rest.

hi Robban,

could you go through the steps you did to make it work?

I added toolchange buttons to my UI but have not linked them to the toolerator3000

I show the toolerator3000 in my HAL summary but havent been able to make it index, did you just use a midi commend line t# m6?

the line you forgot above is in the manual changer config that I commented out, did you just un comment it or add it somewhere else?

do you have a xml file and ini entries for the toolchanger you can share, I didnt see it in the ini you posted but likely I just am missing it.

Since you already have the toolerator working with the buttons on the pcb you just have to plug in the usb cable.
Open arduino and check in the menu "Tools" >"Port" that the tooerator is connected to the port "/dev/ttyUSB0"
If not you have to change to the right port in the comp file.

Add to your hal file
loadusr -W toolerator3000

net tool-change iocontrol.0.tool-change => toolerator3000.toolchange
net tool-changed iocontrol.0.tool-changed <= toolerator3000.toolchanged
net tool-number iocontrol.0.tool-prep-number => toolerator3000.toolnumber
net tool-prepare-loopback iocontrol.0.tool-prepare => iocontrol.0.tool-prepared

If everything works just do a toolchange with T1 M6 G43

If it still doesnt work check that the toolchanger responds via the usb cable by using arduinos serial monitor, just type any number between 1-8 and press enter.