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Show"N"Tell ( What you have made with your CNC machine.) / Re: Video of my milling process - need advice on improving efficiency
« on: June 03, 2009, 09:39:41 PM »
A shellac or other sticky way to hold parts is fine for one off stuff, but if you really want to make these in large numbers make a holding fixture. Id buy my stock in a width just enough to make one part. Start it in a vise, with just a bit more than one half sticking up out of the vise, Cut your part half way down.
Next make a soft vise jaw and cut into it the image of the part- some call this a 'nest'. You flip the half cut part into the nest, tighten the vise, and do the other half.
Id also program an arc in and out on the cut to minimize the cutter marks, and Id program the part over size by about .010. Then Id make one final pass around the part at exact size as a finish cut.
I agree with the Bridgeport size machine. You ought to be able to run much faster than on the Taig. If you really want to buy a ready to run machine also look at the Tormach.
Next make a soft vise jaw and cut into it the image of the part- some call this a 'nest'. You flip the half cut part into the nest, tighten the vise, and do the other half.
Id also program an arc in and out on the cut to minimize the cutter marks, and Id program the part over size by about .010. Then Id make one final pass around the part at exact size as a finish cut.
I agree with the Bridgeport size machine. You ought to be able to run much faster than on the Taig. If you really want to buy a ready to run machine also look at the Tormach.