I followed the recent YouTube video posted about using Intercon to flatten slabs. Everything went exactly as it should with the G-code generation and part zeros. However, when I run the job, the motor won’t spin, but the machine will run the toolpaths. Any ideas where im going wrong? I can draw job…

Did you add a spindle start command in your program? You can also check out this thread: [image] Slab Slayer pocket toolpath generator Hey all, in some of the free time I had I whipped up this little utility: [image] It’s the “slab slayer”. It’s for folks…

I have header, tool, face, and program exactly as the video I assumed after entering the feed rate and spindle speed in the facing section that it would automatically handle that portion. What am I missing? [image]

Post the g code here and I’ll check it for you

Nevermind, I spotted your issue: [image] You toggled the spindle to be off. You need to click that until it says “CW M3” (this stands for clickwise M3) M3 is the spindle start command. What you have right now is M5, which is “spindle stop”

I ended up using your slab slayer tool, which works flawlessly. Thank you. Will give it another try next time the way you showed in your video now that you pointed out spindle was off. Thank you.

Oh sweet! Glad that worked for you!

So, I watched the YT video on using Intercon to create a facing toolpath. Overall I have liked this quick and easy method. Like the person in this thread, the first time I created the g-code I didn’t have a command to turn the spindle on - so this thread was helpful on that front. But after using th…

Are you doing a tool change in your intercon program? You could also try this: [image] Slab Slayer pocket toolpath generator Hey all, in some of the free time I had I whipped up this little utility: [image] It’s the “slab slayer”. It’s for folks that just…

Yes I do have the tool change “line/cmd” in the program. I’ll check out your slab slayer app. Thank you for your oh so quick response to things here in the forum - your participation is invaluable !! -scott

So after playing with the slabslayer web app for just a few minutes - I have one suggestion … I think it might be help to relabel “depth” to “depth of cut”. I think I was in a V-carve autopilot mode when I was specifying the length, width, and THICKNESS of my slab. I was slightly confused for a sec…

Slab flattening with intercon

Eric March 16, 2026, 1:07pm 9

Are you doing a tool change in your intercon program?

You could also try this:

Topic		Replies	Views
Thank you for the Slab video	7	162	September 8, 2025
Creating intercon program to flatten in CNC 12	3	93	May 9, 2025
CNC 12 Spindle controlls	15	347	January 7, 2025
Slabbing Wizard for Mach4 mach4 , wizard , lua	42	2517	September 30, 2024
907 Z axis travel exceeded, line 36	5	174	August 4, 2025

Slab flattening with intercon

Related topics