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Concrete lathe
- Thread starter Jwest7788
- Start date
The 'pour' looks a bit rough around the edges, but yes I have heard of people framing up CNC tables & other machines & then casting/filling with inert concrete like materials. Sometimes just in key areas like the frame or legs, sometimes integrated & encapsulating the components. Its relatively cheap & adds rigidity & vibration dampening. From what I've read, I think epoxy/aggregate mixtures are favored & offers more advantages. It has less potential shrinkage over cement cure, better boding to dis-similar materials, you can stage the pour & you can mess with the mixture recipe with a bit more latitude. I've done some RC molds using this technique where stability & dimensional accuracy is important. Having said that, there are new mixtures of cement being used for decorative counters etc. where they modify the additives to try & balance out shrinkage (like tooling plasters).
Jimbojones
Active Member
Epoxy granite - polymer concrete (other descriptions) embedded CNC/machines. Lots of examples on this forum.
http://www.cnczone.com/forums/epoxy...machine-bases-polymer-concrete-frame-122.html
Dan Gelbart built up precision bed lathe / spindle grinder made from granite (1 micron accuracy). Air bearings & other cool jewelry.
http://www.cnczone.com/forums/epoxy...machine-bases-polymer-concrete-frame-122.html
Dan Gelbart built up precision bed lathe / spindle grinder made from granite (1 micron accuracy). Air bearings & other cool jewelry.
Jimbojones
Active Member
re: original photo.
Unprotected lead screw on cross slide, tubular ways w/angle iron guides and more holes in that pour than swiss cheese...
Dan G's layout is pure sweetness...can tell just by looking that it's a quality rig.
Unprotected lead screw on cross slide, tubular ways w/angle iron guides and more holes in that pour than swiss cheese...
Dan G's layout is pure sweetness...can tell just by looking that it's a quality rig.
I agree completely. I had never seen anyone actually make a metal lathe from concrete, or other novel materials like epoxy+aggregate, need to do some more reading I suppose!
Man, Dan G's lathe is a thing of beauty, no doubt about that.