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| Shaper arbor for CNC Mill? http://mowrystrings.luthiersforum.com/forum/viewtopic.php?f=10106&t=41622 |
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| Author: | Sheldon Dingwall [ Wed Oct 09, 2013 10:27 am ] |
| Post subject: | Shaper arbor for CNC Mill? |
Anyone know of a 3/4" arbor that would allow me to use shaper cutters on my CNC mill? Still trying to solve the 3/8" round over issues we're having. Round over router bits have too small a minor diameter to cut cleanly at mill spindle rpms. |
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| Author: | Bob Garrish [ Wed Oct 09, 2013 10:43 am ] |
| Post subject: | Re: Shaper arbor for CNC Mill? |
Depends what holds the shaper cutters on the arbor. If they're just a set screw or friction, then buy one of these (shell mill holder) and grind the nubs off: http://www.maritool.com/Tool-Holders-Cat-40-Shell-Mill-Holders/c23_25_94/p16230/CAT40-.750-1.5-FACE-MILL-TOOL-HOLDER/product_info.html If there's a key or something, then you might have to get one made. You can get threads cut and a collar put on a piece of 3/4" precision ground and put it in a tool holder if you're going DIY on it. |
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| Author: | Kevin Waldron [ Wed Oct 09, 2013 11:09 am ] |
| Post subject: | Re: Shaper arbor for CNC Mill? |
Personally would advise against this unless you have a horse of a router and machine, but if you insist......here is a company that offers such. ( Most shaper heads max RPM is 9,000 to 12,000....... most like to be in the 6,000-8,000 rpm range....... 3/4 shaft would be considered small or hobby machine ..... most commercial shaper heads are 1 1/4" shaft diameter and larger..... we own 25+ shapers so we do have a little knowledge in this area....) http://www.guhdo.com/toolholders-collet ... rbors.html Blessings, Kevin |
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| Author: | 87kevin [ Wed Oct 09, 2013 1:35 pm ] |
| Post subject: | Re: Shaper arbor for CNC Mill? |
This is something we do here daily with our CNC routers (for non-guitar work). We use some of these http://www.royceayr.com/assets/Uploads/ ... C45-51.pdf where the arbor is integral to the tool holder. But your mill is probably cat40? If so, do what Bob suggests unless you can find a 3/4" arbor tool. Problem is will you get into the tight horns with the much bigger diameter that this involves? -Kevin |
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| Author: | Sheldon Dingwall [ Wed Oct 09, 2013 2:25 pm ] |
| Post subject: | Re: Shaper arbor for CNC Mill? |
Thanks Bob, I knew there had to be something simple. Thanks Kevin W, it's a mill so power and rigidity aren't a problem. Spindle speed can be a little limiting though. Thanks 87kevin, CAT40 is right. I've found a cutter that will fit into 99% of the horns we do. |
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