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| John Rudd:
Got a bit more done today....one new fan machined from solid....a lot of hard work.... :doh: Sadly I'm inclined to discard this one, making them out of metal is just too heavy.... Anyone seen any fibreglass filled resin that I can mix with hardner and mold into a fan? |
| seadog:
This is quite informative John - https://davidneat.wordpress.com/materials/casting/fillers-for-resin/common-fillers-for-resin-casting/ |
| RobWilson:
Good going John :thumbup: Machine up a mould and purchase Joules fine plastic injection moulding machine ,sorted :) Rob |
| awemawson:
In the absence of a 3D printer my approach would be to glue up the original, or your best copy, fettle it to a good finish with car bodywork filler, and take an impression in Vynamold : http://www.mbfg.co.uk/vinamold.html Release from Vynamold and pour in resin of your choice, no doubt with a filler added. If you form a decently thick edge to your Vynamold it will hold it's form yet be flexible enough to release the pattern. I still have a few vynamold forms I made over ten years ago and they would be fine for resin casting even now. (I was lost wax casting iron in sodium silicate bonded sand) |
| Joules:
LOL, 3D printed fan's....... Another Vynamold user here, usually taking impressions off plaster of paris than machining up a part to take an impression.... I have a wee bit of experience with fans, but mine usually ran very hot except this one where I slipped with a Dremel cutoff wheel. Twice !!! at 90 degrees... |
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