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  • How to Make a Mini Milling Machine- Manual or CNC!

    I like projects like this!Quick question: if you have a router, why wouldn't you use that as the spindle? Surely it would do a far better job for milling plastics, wood and aluminum than any homemade spindle or Dremel. Router mounts for CNC machines are readily available on eBay at low prices too. My 2hp fixed base router will glide through wood or even aluminum with 1/4" end mills. My dremel couldn't cut a paper bag with the micro end mills I bought.Instead of using wood for the column and base, I highly recommend using an epoxy granite mix. It's cheap, very easy to cast and a million times better than wood for a milling machine build. It's stronger, stiffer, heavier and easier to achieve perfectly level surfaces. It has better harmonics and thermal stability than even the heavy i...

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    I like projects like this!Quick question: if you have a router, why wouldn't you use that as the spindle? Surely it would do a far better job for milling plastics, wood and aluminum than any homemade spindle or Dremel. Router mounts for CNC machines are readily available on eBay at low prices too. My 2hp fixed base router will glide through wood or even aluminum with 1/4" end mills. My dremel couldn't cut a paper bag with the micro end mills I bought.Instead of using wood for the column and base, I highly recommend using an epoxy granite mix. It's cheap, very easy to cast and a million times better than wood for a milling machine build. It's stronger, stiffer, heavier and easier to achieve perfectly level surfaces. It has better harmonics and thermal stability than even the heavy iron columns found on expensive commercial mills too. Google "epoxy granite machine base" and you'll see what I'm talking about.For a more capable spindle option, little machine shop sells the R8 milling heads from their mini mills seperately for $350 (with everything you need to start using it). For the slide table, inexpensive compound tables are available on eBay but I don't think this is an area to cheap out. I like to build them with decent used THK rails off eBay with quality used lead screws. The whole thing is a waste of time if you can't make decent cuts. I'd like to see more projects like this. Commercial mills are too expensive and we need more diy options for hobby projects.

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  • Female mold for carbon fiber motorcycle bodywork

    you'll never be able to smooth out a female mold once it's made. You'll end up ruining it trying, or changing the size of the part as you sand the surface away.An easy way of getting a smooth surface on your original part is to use shrink wrap on it when making the mold. It works suprisingly well. It is worth remembering that carbon fiber never picks up small details from the mold surface. A smooth mold will give you a cf part that needs less sanding but sanding the final part and adding a glossy clear-coat works as well. Use pva mold release on the mold when making the cf part.

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