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Request for turned aluminum handles (Calgary)
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<blockquote data-quote="PeterT" data-source="post: 16643" data-attributes="member: 22"><p>I took your screen image, roughly scaled, drew an outline & made 3D CAD solid model. Its not exact of course but just gives an idea of reverse engineering. If someone has CNC lathe capability, guessing they could do something similar. Whether that met your price expectations would have to be discussed obviously. I would turn it so the thread end was pointing out from the chuck so the hole could be drilled & tapped. If its a funky metric thread a tap may have to be sourced.</p><p></p><p>The part could also be made on manual machine but would involve some time. The contour would probably have to be cut in x,y steps from pre-dimensioned drawing & blended with file. The semi-rounds would probably be best turned with a ground form tool. Aluminum can be clear anodized but more $ and may not have the matching look.</p><p></p><p>Another option since you have an original is to make a female mold from the original using a semi flexible molding rubber. Then cast a replicate from a pour-in hard urethane. Its not metal but they have all kinds of fine metal fillers these days or you could do a decent job with paint & even give it a weathered antique appearance. This link shows some of the typical products & methodology but there are other vendors.</p><p><a href="https://www.smooth-on.com/" target="_blank">https://www.smooth-on.com/</a></p></blockquote><p></p>
[QUOTE="PeterT, post: 16643, member: 22"] I took your screen image, roughly scaled, drew an outline & made 3D CAD solid model. Its not exact of course but just gives an idea of reverse engineering. If someone has CNC lathe capability, guessing they could do something similar. Whether that met your price expectations would have to be discussed obviously. I would turn it so the thread end was pointing out from the chuck so the hole could be drilled & tapped. If its a funky metric thread a tap may have to be sourced. The part could also be made on manual machine but would involve some time. The contour would probably have to be cut in x,y steps from pre-dimensioned drawing & blended with file. The semi-rounds would probably be best turned with a ground form tool. Aluminum can be clear anodized but more $ and may not have the matching look. Another option since you have an original is to make a female mold from the original using a semi flexible molding rubber. Then cast a replicate from a pour-in hard urethane. Its not metal but they have all kinds of fine metal fillers these days or you could do a decent job with paint & even give it a weathered antique appearance. This link shows some of the typical products & methodology but there are other vendors. [URL]https://www.smooth-on.com/[/URL] [/QUOTE]
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