G33 Spindle Synchronized Motion on LinuxCNC based DIY Lathe

**GBWM** · Apr 17, 2022, 02:27 AM

Describing the G33 cycle on LinuxCNC based machines. It allows to synchronize the spindle with 1, 2 or even 3 linear axis. This gives the possiblity to machine threads on bar stock or even drill-like patterns on cones using a CNC lathe. I'm not sure for what purpose could be used the 3rd axis here - maybe you have any idea?

**DIYer** · Apr 17, 2022, 04:59 AM

Thanks GBWM! We've added your CNC Spindle Synchronized Motion to our CNC category,
as well as to your builder page: GBWM's Homemade Tools. Your receipt:

CNC Spindle Synchronized Motion by GBWM

tags: CNC, spindle

**NortonDommi** · Apr 23, 2022, 12:31 AM

Bloody awesome. Wish I could understand what you are doing. You could start making log-splitter cones . Easier than setting up a taper turning attachment.

**GBWM** · Apr 23, 2022, 01:30 AM

I was thinking about it. Maybe when I will have some spare time I'll give it a try.

**wizard69** · Apr 23, 2022, 12:19 PM

There are many things that can be turned as "threads on a cone".

1. screw extractors
2. buffing wheel arbors.
3. log splitters.
4. custom wood screws.
5. Tapered end mills.(OK maybe to heavy for most lathers).
6. Marble tracks with a router attachment.

There are probably a few more I'm missing. In any event great to see you have G33 working. There are not a lot of posts about using LinuxCNC for lathe work so it is good to see people using it here. One day I'd like to have LinuxCNC running on a machine or two, but that is way off in the future.