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| Cutting brass disks from sheet |
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| andyf:
Chris, I used a home-ground trepanning tool to cut the biggish hole in the 6mm rectangular steel plate in the pic below, before boring it to finished size. The tool was rather like a parting tool ground on the end of a square HSS blank but, viewed end on, the sides of the blade were curved to match the sides of the groove it would make, and then a bit more to give some relief. If your brass sheet is relatively thin, you might get away with a threading tool plunged straight in, particularly if you can work halfway in from one side and flip it over to finish the job. Then the circumference could be turned to size. Andy. ed them b |
| BiggerHammer:
Do you think he might be using a water jet cutting table? No fuss no muss. Clean cuts, no rounding of the edges, and can cut to any size. Just a bit expensive I would think. |
| Deko:
Jari, I have cut many round blanks out as you say,with a hole saw and no center drill. Just clamp the plate to a piece of wood on the drill press, job done !!! Cheers Dek. |
| awemawson:
Here you go Chris: http://www.ebay.co.uk/itm/SAHINLER-IDK-1-CIRCULAR-CUTTING-MACHINE-/271134709288?pt=LH_DefaultDomain_3&hash=item3f20e35628 Regards, Andrew |
| NickG:
Could u just make a custom fly cutter type trepan ing tool? |
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