2023-09-27

Last modified: 2023-09-28 18:55:02

I was at Ruari's doing CNC work again today.

Meshmill bugs

We ran some Meshmill rotary G-code for the first time. It mostly worked!

Bugs discovered:

1. If you save and re-open a "rotary" project, it forgets the "rotary" setting.

2. If you have a path generated, and then you click "Generate toolpath", and then "Stop" it, and then "Save G-code", you get an empty file. It should either give you the file for the previous toolpath, or disable the "Save G-code" button.

3. Feed rate calculation is wrong because it only measures distance in 3D space but some moves are around very long arc (fixed on the laptop).

4. It doesn't do roughing for rotary paths because Z is always greater than 0 (fixed on the laptop).

5. The part is not quite aligned with 0 degrees, seems off by a bit, not sure why.

6. The part has a "step" at about the mid-point, not sure why.

7. When you open a project and "Save G-code", the default file is "Untitled.gcode", should be the last filename you saved that job as. Also perhaps we should automatically insert the job number in the filename if there is more than one job, or for all except the first job?

Todo:

• check the "BUGS" file on the laptop in case there are any I forgot
• commit the fixes