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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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Cut Outs
Mostly my mill has been used for engraving, although I've used it to shape a
few custom pieces. Recently I ran into a problem though. I starting cutting some stencils with it. I found milling off a block of wood flat, and then securing my sheet to that worked fairly well, but when working with metal I've had a hard time figuring out how to secure the pieces I want to remove. They tend to shift, bind the cutter, and it goes SNAP. On light stuff or small jobs I can sit there and watch for it to get close to going through and then take a couple tungsten scribes and use them to hold the waste piece down until the cutter is done and clear. Still it seems like there should be a better way to do that. On a detailed stencil or a piece of aluminum sheet I can find myself standing there for quite a while. I had considered pocketing the entire waste piece, but that would really increase the time to do a job. Also, Lazy Cam really throws in a lot of strange artifacts that need to be manually edited out before you can get a final piece. Not horrible if you are doing twenty of something, but the time to get a good piece can be pretty horrible when doing just one of something. My latest project is to try and make some commemorative coins for a local event among friends, and pocketing out the entire coin is obviously not the best option. LOL. I have pretty much decided to finish one surface of the coin, cut it out, and then drop it into a pocket in my wood block to do the other side. My problem seems to be in finding a way to cut it out without having it slide and bind as soon as it starts to come loose from the stock. |
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