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Unread 29-12-2011, 15:26
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Re: paper: 3008 Custom AM Super Shifter Plates Pocketed

You really ought to increase your radii on the pockets. If this is getting waterjetted, they're ok, but if you're milling it you are not going to find a machinist who will want to use a .060 endmill to machine all your corners with.

If I was making this I would want to not have to use anything smaller than a 3/16" end mill, but 1/8" would be acceptable. Anything smaller and I'd tell the designer to go play in traffic.

You should also make your radii a bit larger than the radius of the cutter you intend to use. If it's exactly the same size the machine can't interpolate the radius-it simply comes into the corner and then abruptly moves out. This won't affect the accuracy of your part, but you will get an improved surface finish (and tool life) if you increase the radii a bit over nominal.
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Last edited by Cory : 29-12-2011 at 15:38.
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