So I am thinking about some of the projects I plan to do on the LR4. Some of them will be to cut coro for christmas decorations. Is it still recommended to use a drag knife for cutting 10mm coro or is there a better tool now? Along those lines, has anyone used the printed drag knives and how well do they work?
I’ve never tried to cut coro on a CNC, but I think a drag knife would be hard to get through 10mm? I’d probably just use the 1/8" endmill and go fast. Or you could use 1/2" foam. That is pretty popular for props / decorations.
Did you know there is a gallary with the LowRider tag - Topics tagged gallery-lowrider-cnc
You can see all sorts of projects there
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May i ask what coro is??
Coroplast a brand name of this plastic corrugated sheet
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Thanks for the advice. I was wondering the same if a drag knife would be able to get thru 10mm. I guess it wouldn’t hurt to try a regular endmill and go from there.
No, I didn’t know about the gallery. Checking it out now
Ohhh that stuff!!!
A drag knife isn’t going to cut deep enough for coroplast. It’d probably cut through one side of it, though. The 1/8" bit recommended would probably do the best. It’ll be interesting to see how it does when it cuts across the ribs. It should slice through pretty easy.
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I found a couple of youtube videos on this subject. It seems like current advice is to use a compression endmill. The rationale is that an upcut pulls the coro up, while a downcut tends to rip the backside. I’ll do some tests to see how it goes
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