CNC routing Corian

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Forum topic by Mainiac Matt posted 11-21-2012 08:00 PM 3533 views 0 times favorited 0 replies Add to Favorites Watch
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Mainiac Matt

8047 posts in 2328 days

11-21-2012 08:00 PM

Topic tags/keywords: cnc corian routing

Our millwork shop jobs out some of the more difficult Corian fab. But for this job they asked if I could take a crack at it on the CNC.

First step was to research cutters…. and fortunatley the Onsrud ‘O’ flute (63-700 serease), which we use for ABS and HDPE plastic is also recommended for solid surface routing. So we loaded up a 3/8 dia. ‘O’ flute spiral-up and were ready to rock.

Here’s the file loaded and ready to go…

First problem… the crating dept. ran a sizeable job for CDX cradles…

and they were cutting too deep into the spoil board. This provides hundreds of shallow channels for vacuum to leak under the stock. And even when I used all of our little tricks to deal with vacuum issues, the Corian was just two smooth and slippery to hold still. Good thing I tested my set up with a 50% scale test piece cut out of a scrap stub… because it slipped on me several times.

I blew off the spoil board and was about to use PSA tape to assist the vacuum, when I decided it was too hacked up to get a good bond. So I loaded the surface mill and took .070” off the spoil board.

That did the trick… no tape, no blocking, no nuttin’ .... vacuum sucked the Corian down and it wouldn’t budge.

So I was off to the races…. 18,000 rpm, 200 ipm, and I gobbled up the 1/2” stock in one pass. I cut it with the protective plastic film still on the material, so the surface should be immaculate

Unfortunately, I forgot to shoot a pic of the finished parts… but when I delivered them to milwork, the senior guy in the shop was very pleased with the quality of the cut and said he would have to do very little sanding when he put the project together.

Her’se the carnage from my work and the previous days cradles…

Looks like we’ll be doing a fair bit more of this work in-house from now on.

-- It’s the knowledge in your head, skill in your hands and motivation to create in you heart that makes you a woodworker. - Mainiac Matt

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