/diy/ - Do It Yourself

>>612764
>Silicone sealant (with a few additives).

I wrote about this before. Its in the guide, which is in this link:

https://archive.foolz.us/diy/thread/573327/#q573875

>Casting resin can be as cheap as you want

Yes you have to pay for Resin whereas you don't have to pay for waste Plastic. But the cost of mould making materials for Injection Moulds is still comparable to the combined cost of cheap Resin and Silicone.

Silicone moulds are also very easy on undercuts, so they're much more forgiving to make - as you can always flex or stretch them to release the casting.

>combine all that stuff together

Its pretty straight forward really. The compressor connects to the pressure pot via a hose. The Pressure pot needs a PSI gauge connected to it (so you can measure the pressure). It also needs a Valve stuck on top of it (just any simple ball valve), so you have a means of releasing pressure. Its just a tank with a means of receiving air, a means of measuring it, and a means of releasing it - it needs nothing else.

The Vacuum chamber is even simpler. Its either a large mason jar with a valve attached to its lid, connected to your vacuum pump via a hose. Or a length of PVC pipe with silicone sealant around the top and bottom with two Polycarbonate sheets forming the ends, with a valve attached to the top sheet.

Vacuum chambers are significantly less complex because as the air is sucked out the lid is pulled tight forming a seal. So it needs to be a sturdy cylinder with a flexible rubber seal. Other than that it should be transparent - so you can view the degassing process.

>>612767
I should imagine that would be fine - I was just thinking aloud in that post - I'm not keen to enter into the Blow Moulded Flamingo production race just yet.