Bubbles?

[guhman2002]

Anyway to get the air bubbles out?
I don’t think they are butane, I vac purged for a few hours at 115
I think it’s good otherwise, my first time.

 

[Fadedawg]

At 115F, you should be molten, and at -29.5" Hg/10,000 microns, there shouldn't be enough air for a bubble. How are you measuring temperature of the puddle?

 

[guhman2002]

At 115F, you should be molten, and at -29.5" Hg/10,000 microns, there shouldn't be enough air for a bubble. How are you measuring temperature of the puddle?

Just air temp inside the vac chamber

 

[Fadedawg]

You might try bumping up your temperature until you achieve full melt. The bubbles won't stick around if they have an easy way out.