Is this a CAN or CAN’T/shouldn’t do? Anyone have any experience?

This is probably a bad idea… however you never know until you (Safely) try. I think the biggest challenge you’re going to run into is holding the material down… If you start to get vibration things could go badly fast. What is it you’re trying to do? Just cut one custom piece, or a lot? A plasma …

I’m looking at one piece at a time. I have two 50 ft runs (100/3) 33 sheets that when put together does a continuous slope down. I would be doing one cross cut off the end per sheet. No drilling, circles, arc’s, etc. The mail reason I want to do on the cnc is for accuracy and clean cut. Nibbers and…

I’d use the CNC to make a jig to hold it firmly in place. If it wiggles, it’s a disaster.

I’d make a jig or sled for the skillsaw. I’ve cut a lot of steel roofing that way. Its noisy as heck, but gets the job done pretty quick.

Clamp a 2x4 or level to the material. Make an add on sled for your circular saw that will give it a taller edge to ride against the 2x4 (if you don’t, that thing shoe can slide UNDER the 2x4, don’t ask why I know this). Then chuck up an abrasive metal cutting wheel in the saw. Be sure to wear a fac…

I’ve done something similar using a 3-flute aluminum bit at reduced speeds—helps with cleaner cuts on the siding. Also clamped everything tight to avoid chatter. I checked out emersonproservices for spindle setups and cooling tips, and their input really cleared up some of my early issues with feed …

[image] Kosh: Clamp a 2x4 or level to the material. Make an add on sled for your circular saw that will give it a taller edge to ride against the 2x4 (if you don’t, that thing shoe can slide UNDER the 2x4, don’t ask why I know this). Then chuck up an abrasive metal cutting wheel in the saw. Be …

Cutting metal siding/roofing on CNC Router

Eric May 12, 2025, 6:11pm 5

Can’t you just do the backwards sawblade on a circular saw trick and use the CNC to make a jog to guide the saw?

Topic		Replies	Views
Wall Cabinet / Medicine Cabinet Projects	7	397	October 19, 2024
Flattening wood slabs with the cnc	15	1321	December 10, 2022
How to Manually Control Mach 4-Wanting to Surface Slabs with a video game controller	12	614	February 1, 2023
Working with Carbon Fiber	10	2290	November 9, 2022
Need input on a Project I'm considering	2	219	February 24, 2024

Cutting metal siding/roofing on CNC Router

Related topics