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3d Printing a mold?

Posted by audiobull 
3d Printing a mold?
October 18, 2016 11:03PM
I am wanting to scan a car part for an old vehicle of mine and then get a new one poured at a foundry.

Can I scan the item. 3d print it using some sort of filament and then send it off to the foundry? I though this forum section was for just that but I seem to reading posts about injection molding rather then moldmaking.
VDX
Re: 3d Printing a mold?
October 19, 2016 01:44AM
... ask the guys at the foundry, what's best for them.

Here in Germany I can send them a "positive" part for making a mould (did this with some SLA-fabbed parts) or a part made from wax for a one-off lost-cast-moulding ... or only the CAD-data, so they will 3D-print the mold on their own - but then pretty expensive too eye rolling smiley


Viktor
Re: 3d Printing a mold?
October 21, 2016 01:13AM
Thank you VDX

Is there a wax filament available on the market or do I need to make a cast and then pour wax in?
VDX
Re: 3d Printing a mold?
October 21, 2016 02:01AM
... wax is, when molten, not viscous enough to be usefull for FDM printing - it's mostly used with "ink-jetting" types of 3D-printers.

You can 3D-print a cast to make a wax counterpart.

But IIRC, you can use parts printed from PLA for lost-cast moulding too, as it will burn/evaporate without residues too ...


Viktor
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