Emcoturn 120 lathe retrofit

Good numbers, but that was probably RTAI whereas for an ethernet card you need uspace (still new, forgot to mention that)

linuxcnc.org/docs/2.7/html/getting-start...th_preempt_rt_kernel

this was running on a USB. I went ahead and got the 8GB DOM since they agreed to the $22 price. SHould see it late next week and Ill load it to the DOM and run it.

question about linuxcnc. With Mach3, when I wish to tweak a hole or profile size I have to go back to my CAM package and change the tool diameter or roughing clearance and regenerate the cut. Does linuxcnc work in a similar fashion or is there a way to offset a path by a couple thousandth as needed? I assume no which is an issue for me as I run my cam and mach on the same computer. Is there a good cam package that can run on the linux box along with the linuxcnc?

LutzTD wrote: question about linuxcnc. With Mach3, when I wish to tweak a hole or profile size I have to go back to my CAM package and change the tool diameter or roughing clearance and regenerate the cut. Does linuxcnc work in a similar fashion

I think that both Mach and LinuxCNC can do tool compensation in the controller or in the CAM system. If you do the compensation in the controller then you can tweak the tool diameter to tweak hole sizes.

If, however, the compensation is in the CAM system then the G-code is a tool-centre path and the controller doesn't actually "know" which side of the tool path the material is on, so can't compensate.

LutzTD wrote: question about linuxcnc. With Mach3, when I wish to tweak a hole or profile size I have to go back to my CAM package and change the tool diameter or roughing clearance and regenerate the cut. Does linuxcnc work in a similar fashion or is there a way to offset a path by a couple thousandth as needed? I assume no which is an issue for me as I run my cam and mach on the same computer. Is there a good cam package that can run on the linux box along with the linuxcnc?

If you write your G-code without an offset for the tool radius, you can then use G42 or G43 radius offsets to make the CNC control offset its path by the tool's radius. By adjusting the tool diameter in the tool table, you can alter the path by small amounts to bring parts exactly on size, and compensate for tool wear.

This DOES require finding suitable positions for lead-in and lead-out moves.

Jon

Hi Jon, yeah I dont write the code. CAM solutions are so cheap now there is no reason to write code. I use a program called CAMBAM which is working extremely well for me. I have been remiss in looking to see if it is available in Linux form. The CAMBAM code has the tool compensation in it already, so editing the code simply would not work. What I can do right now is leave the CAMBAM window open and tweak the tool diameter to size holes. I was looking for a CAM software that could run concurrent with the Linuxcnc to be apples to apples. I dont want to be editing raw code.

I went to the site and it is available in Linux. Once I get the memory module for the Dell Ill try it out.