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Old 02-12-2016, 08:10 PM
jbiddle jbiddle is offline
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Default spoilboard cutter size

Should the diameter of a spoilboard cutter be sized to match the spindle kW? I have a machine with a 3kW spindle on order, so what would be the optimum size of the cutter?
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Old 02-12-2016, 08:41 PM
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Gary Campbell Gary Campbell is offline
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Yes it should match. The routers and 1kw spindle do best with the 1.5 inch versions and the 3kw and up can use the 2.5" and up. The 2.2kw is in the middle and can use either, depending on table size.
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Old 02-12-2016, 08:49 PM
Ed Hazel Ed Hazel is offline
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Is there a recommended maximum diameter bit size for 1.7, 2.2 and 3.0 spindle? Looking at some stile and rail bits, thanks
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Old 02-12-2016, 10:26 PM
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Gary Campbell Gary Campbell is offline
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Ed...
Maybe some of the other guys will chime in with their experience, but mine hasn't been very satisfactory with rail & stile type cutting on the CNC vs. on my shaper. The narrow material is hard to hold properly.

Russell Crawford does some nice work with Jigs for holding a number of his products that are a similar operation. Do a search for his work. Its top notch.

I did have good luck cutting the templates and some blanks for arched work tho.
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Old 02-13-2016, 09:47 AM
Ed Hazel Ed Hazel is offline
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Thanks Gary
Yes Russell does some amazing things. Will be happy if I can come close to his talent.

Most of my operations will be cutting production parts on pods. But the fun of woodworking is always trying new stuff. My machine has a 2.2KW spindle and I was wondering if there is a recommended max bit diameter?
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Old 02-13-2016, 09:57 AM
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Gary Campbell Gary Campbell is offline
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Ed...
You can always adjust feeds down, but I would stay at or under 1"/HP. Yours is 2.2 hp, not kw. Something in the <2.5" range would be appropriate. Make sure bits are rpm rated and balanced
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