Simple G7x Profile editor for Linuxcnc/Axis

Hi guys, 

Created this simple, but effective profile editor for myself. 
It is a lightweight Tk-based conversational editor for lathe profiles, designed for LinuxCNC / PathPilot style workflows.It lets you sketch, edit, and preview turning profiles interactively, then generates a G71 or G72 roughing cycle with a G70 finish pass. All core functionality uses only the Python standard library (Tk), so it can be dropped directly into a AXIS environment.Optional DXF / 3MF import is supported via external libraries.

For example you can: 
 

1. import an STL as a background reference
2. Auto create segment points or (recommended) tracing the rotational outline with profile points 
3. Adding chamfers and radii for finishing details
4. Adjusting geometry for optimal cutting
5. Setting machining parameters
6. Generating G-code
7. Sending to LinuxCNC/AXIS

 You can find it here:  Repository


 

Hi, great tool — thanks for sharing it!

I ran into two issues with the generated G-code on a standard LinuxCNC setup (not PathPilot), both easy to fix:

**1. D and I parameters are swapped in the G71/G72 line**

The generator outputs:
```
G71 Q#### D{stock_allow} I{doc} R... F...
```
But LinuxCNC G71 expects `D` = depth of cut per pass and `I` = finish stock allowance — the opposite of what is currently generated. With the values swapped, the cycle runs with a 0.2 mm DOC and a 2 mm finish allowance instead of the other way around.

**2. X and Z arguments on the G71/G72 line cause the machine to stall**

The generator adds `X{start_x} Z{start_z}` directly on the G71 line:
```
G71 Q#### X30.000 Z2.000 D... I... R... F...
```
LinuxCNC does not accept X/Z on the canned cycle line itself — the approach is already handled by the preceding `G0`. With these arguments present the spindle starts but the machine does not move.

**Fix** — patch profiler.py (4 occurrences):
```bash
sed -i 's/X{start_x:.3f} Z{start_z:.3f} D{p.stock_allow:.3f} I{p.doc:.3f}/D{p.doc:.3f} I{p.stock_allow:.3f}/g' profiler.py
```

After the fix the output looks like:
```
G0 X30.000 Z2.000
G71 Q#### D0.500 I0.200 R1.000 F100.0
G70 Q#### F50.0
```
Which runs correctly on LinuxCNC 2.10 with AXIS.

Hope this helps, and thanks again for the project!

Thanks for reporting this. I am a little pressed for time these days, so I don't know when I get around to checking and fixing it. 

 

Good morning everyone. But does this conversational lathe software only work with Axis or does it have its own native GUI?

It has its own GUI....I have not tried it with other UI's, but should be able to work. You can save the g-code and load it in any Linuxcnc ui.

In the readme->quick install section it mentions the 'standalone' mode

HI good mornig at all.
The GUI, can running on Debian 10 ?

Thanks

It should, just try it, it is a small download and easy to try

Sorry it took such a long time. I have updated the code with your suggestions, pushed it to github, but have not gotten around to testing it yet on my own lathe as workshop time is scarce at the moment.

Let me know if you still encounter any issues.

Hi everyone! I'm not a programmer, I have a small lathe (LinuxCNC 2.9.8, Mesa 7I96S), and I'm slowly learning. I found a few real issues in the profiler — some of them can actually cause the tool to crash into the workpiece. All fixes were made together with Claude (AI), and tested on real hardware.What was fixed:

• English/Ukrainian language switcher at the very top of the window (English by default)
• D and I were swapped in G71/G72, plus incorrect scaling for G7 (diameter mode) — the actual depth of cut was twice the value entered
• unsafe G71→G70 transition — for certain Start X values the tool wouldn't retract and crashed into the part
• Start X / retract didn't account for arcs (G2/G3) "bulging" beyond their endpoints
• added a "Finish only" mode — re-run just the last pass without G71/G70
• added a safe approach move at program start, from any starting position
• improved preview (symmetric, centerline at X=0) and DXF import
  
  File and detailed changelog (CHANGES.txt) attached. If it's useful to anyone, feel free to grab it.