Casting under pressure

March 29, 2014 in 8 Channel PDU by Joshua Oster-Morris

I just procured a pressure vessel for the purpose of test casting Motobrains under pressure. I expect this to solve my gas entrapment issues during the casting process. I just poured one with 20PSI. I let it sit under pressure for just a few minutes. At 20 PSI with 6 sq/in of surface area I was pushing 120 pounds down on that goo. Any air in there should have found it’s way out I would think. I invested no time or effort in the pour relying solely on the pressure to make a good part. I’ve been told that if I pour very slowly I can get pretty good results. I don’t want to spend a lot of time on this process so I am hoping that the job is easy with the right tool. We will find out tomorrow.