SoliForum - 3D Printing Community — Additive & Subtractive Printing???

Re: Additive & Subtractive Printing???

2013-03-06T12:40:38Z

Isn't a "subtractive 3d printer" just another name for a bogstandard 3+ axis CNC machine with fine milling points on it (such as used in Isolation Routed PCBs)?
I can see what you suggest being possible by combining an SD with say a Roland wax modelling mill..

Re: Additive & Subtractive Printing???

2013-03-04T08:22:01Z

There's this 3d printer/mill that qu-bd has...
http://store.qu-bd.com/product.php?id_product=45

If I had the extra money I'd be interested.

Additive & Subtractive Printing???

2013-03-04T06:28:20Z

It is my understanding that 3D printing has existed since as early as the 70's, but in the earlier stages it was a subtractive process whereby material was removed from a solid block or something, but later became additive to use only the material that is needed and waste nothing. I was wondering if there were any printers out there that are the best of both worlds?

For example an additive printer that draws the object, but makes it a slight bit more bulky than the final product will be, and then shave away the rest? I figured with extreme overhangs and things that even the best additive printers have difficulty with it might be helpful if it simply added extra padding, have it dry, and then remove it to create a more perfect model?