On Thursday, 5 December 2019 13:48:38 UTC, whisky-dave wrote:
On Wednesday, 4 December 2019 23:43:28 UTC, T i m wrote:
On Wed, 4 Dec 2019 07:19:42 -0800 (PST), tabbypurr wrote:



The cost of the plastic in the bin is nothing. The cost of the electricity to heat the oven is a few pence if you're not cooking any time vaguely soon.

Ok ... but not including the damage to your lungs and the cost of your
time / redecoration after the fire. ;-)

The question is simply is there a combination of plastics this would be workable with?

Ok.

PLA & HDPE are too close in melting point, PET melts much lower but I've no experience working with it.

I wonder if anyone else has considered this solution and come up with
an answer? If not, why not ... ?

They have it's called a higher end 3D printer, which uses more heads, we have an 8 head printer here cost about £80k IIRC. You can use 'plasic' as suporting material which is then washed away using water.
Each head can have it's own colour or type of plastic and can be heated to it's own set temerature. In the marerials department they hae a 1/2 million quid printer that uses lasers too, not that I've seen it just heard about it.
It can take other materials too.

That has its uses but is obviously a substantially different process.


NT