The Craftmans Shop > New from Old
The Sequel - Oh Blimey I bought a CNC Lathe (Beaver TC 20)
cnc-it:
Worth a try with plastic..if it breaks you can upgrade to steel..nothing lost..wondering though if a heavy cut in steel might sheer the teeth of a plastic version :scratch:
Pete.:
Our demo machines have splined plastic couplings from the 22kw motor to the hydraulic box. Worth a try IMO epsecially if you can beef up the sides and put healthy fillets on the diameter transitions.
DICKEYBIRD:
Seems pretty simple Andrew; just invent a carbon filament for your printer, whip out a reverse image of the coupler face in CAD & print yourself an electrode for your EDM. Easy-peasey! :lol:
awemawson:
I printed the second (Mk2) version earlier but not had time to try it yet, but also I've put an advert on the Home Workshop site asking for contacts who can cast bronze from an STL model - you never know! OK it's a bit of a cop out, but having lost wax cast myself years back I know the myriad of special bits and pieces you need to scrape together to do it. Also the special plaster has a short shelf life and only comes in big bags !
https://homeworkshop.org.uk/
nrml:
I've seen a video of someone doing bearing blocks for a CNC router by lost PLA casting and get tolerances good enough to use without further machining.
Your idea of using a plastic printed part as a fuse is quite interesting. You could do a hollow print and fill it with an epoxy and metal mix for greater strength and use it as a semi disposable part.
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