Gallery, Projects and General > How do I??
Plastic injection molding ( moulding?)
John Rudd:
Don,
Thanks for sharing your thoughts on this....I didnt know that 3d printers are used for df fans.... :scratch:
The silicone mold was used to create a resin cast fan...
As for accuracy of fit, the centre of the molded fan has a metal bush insert, that takes care of shaft fit....
So, I would need to have a CAD program, learn to use it, need a 3d printer and learn to use that....thats a lot of learning....
An imm seems a better idea.... :scratch:
Joules:
LOL, just solder a fan up from tinplate (biscuit tin) You can use your prop balancer for, well balancing it.
John Rudd:
I think I might be making this too complicated.....
I need a fan....whether plastic or metal....
I could just take some al sheet, cut a circle, make some saw cuts and fold the blades up...
The centre could be re-inforced with the bushes I have recovered from the original plastic fans...so that takes care of it....
Or go to the expense of making an imm....hmmmm :coffee:
Joules:
By any chance, would you need the drill to make the moulder :wack:
Fans ??? Does this drill have previous form.
John Rudd:
Joules,
I've probably mentioned before on these pages about Stanley Bridges drills, that I've collected and refurbished over the years...
As part of the process, the cooling fan removal is part of it and they are usually destroyed in the process...
I attempted to make ine out of aluminium bar, but it was too labour/machine intensive....cost me at least two 2mm milling cutters...for one!
So I went to cold molding, a silicone mold cast from an original, to cast, in resin, new fans.I made several but never used them after deciding the hardened resin eas too brittle/fragile...
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