Current turning capabilities status

Some work being done:



Some small issues are not completely done (we were unable to produce what we want), so if anyone can give me a good way to atchieve the following (or just one point):

1) I normally do repeative work, and the toolpath preview stays with the last run part on it. I have to "clean the toolpath" before I start again a new cycle. Can this be automatically (when a new cycle start, the toolpath is also cleaned from the previous made part)?

2) I have a physically start and a stop button. I want that the stop button do the following: If the machine is running, when the user presses the stop, the machine makes a pause (feedhold) with the spindle rotating, if the user presses again the same button, it should be equal to cycle stop. The first was done, but we were unable to give a second functionality to the button based on the condition that I described.

3) Also, I have a feed override button, that works very well (0 to 200%). The button is only able to override the G1,G2,G3 movements, not the fast movements G0. My interest is to give the ability for the user to control both feedrates from the same button. This is very usefull to test a part, were the proximity movements are in general all made by G0.

4) We use a touch screen. All works good, but the buttons on linux (not only in linuxcnc) are very small. The top bar, when I want to close for example the text editor is hard to press (I press all around it except the button that I want ). For linuxcnc itself Gmocapy will probably be a solution that I did not yet tested.

emcPT wrote: Can this be automatically (when a new cycle start, the toolpath is also cleaned from the previous made part)?

Possibly, it is possible to do it from a script
linuxcnc.org/docs/html/man/man1/axis-remote.1.html
The remainder of the puzzle is how to do it from HAL (or possibly from G-code)
One possibility is to have a custom M-code to call a script that clears the display. This would need you to insert that M-code in the G-code file.

2) I have a physically start and a stop button. I want that the stop button do the following: If the machine is running, when the user presses the stop, the machine makes a pause (feedhold) with the spindle rotating, if the user presses again the same button, it should be equal to cycle stop. The first was done, but we were unable to give a second functionality to the button based on the condition that I described.

www.linuxcnc.org/docs/html/man/man9/multiclick.9.html

3) Also, I have a feed override button, that works very well (0 to 200%). The button is only able to override the G1,G2,G3 movements, not the fast movements G0. My interest is to give the ability for the user to control both feedrates from the same button. This is very usefull to test a part, were the proximity movements are in general all made by G0.

I think you can do that by changing the max-velocity rather than the feed-override. In the "Touchy" interface this is part of the UI. I am not sure which UI you are actually using.
4) We use a touch screen. All works good, but the buttons on linux (not only in linuxcnc) are very small. The top bar, when I want to close for example the text editor is hard to press (I press all around it except the button that I want ). For linuxcnc itself Gmocapy will probably be a solution that I did not yet tested.[/quote]
Have a look through the "themes", there might be a more touch-oriented one.

For point 1, and for reference to others I simply added the line:

live_plotter.clear()

under the def task_run(*event): in the file emc/usr_intf/axis/scripts/axis.py

Now each time the run is pressed the plotter gets cleared.

Hello.

Really sorry for bother you, I will introduce myself first; my name is Isaac Navarro from Mexico city and I am reading a topic you post here in 2013 regarding driving a 15KW AC Motor
forum.linuxcnc.org/26-turning/26065-curr...-status?limitstart=0
I have just bought an old Okuma lathe and I would like to retrofit it. But I have the same problem you had in 2013.
My question here is if you were able to use the VFD for this motor… Will it work well.
Thanks for your time, have a nice day and greetings from Mexico.

//Isaac

Hello Isaac.

I was able to use a "standard" VFD to drive the motor. I had to use a oversized VFD to fit the amperage needed by the motor. I cannot recall values very well, but the motor was low voltage, like 160V and high amperage, lets assume 40A, so I had to find a VFD that could fit my mains voltage (400V) and that was able to drive 40A. This resulted in a very large VFD, but at the end it was very capable to speeding up and down very fast (I also had to buy a braking resistor set - just this was about 1000€).

But at the end I got a fully working machine. Big, old, but strong enough for most of the jobs. In fact the mechanics of the old Okuma are no less than newer machines. I might even say better.

Hello, First of all Thanks!! For your quick answer. Very happy to know that there are members in this group willing to help

Regarding the VFD, yes I notice that the VFD must be a Big one, but I was uncertain to buy one because I didn’t know it the Spindle Motor was an induction motor or not. But I will try it now with your valuable information.
The machine is really strong and I´ve got it at a very good price so if I can make the retrofit it will be really helpful at my workshop.

Thanks again