Keeping PP contents level

[RetiredJake]

Tried my first casting in my HF pressure pot. Since the thing has a curved bottom, the mold rack has shifted on me a few times and the resin has run out of one end or side of the mold. What do you do to prevent this problem? Thought about putting some sand in the bottom, but afraid of the dust storm when pressurizing.

TIA
Jake

 

[hunter-27]

Pour some resin in the bottom to make it level and let it cure. No need to worry about pressurizing it as the bubbles wont matter.

 

[PTownSubbie]

Tried my first casting in my HF pressure pot. Since the thing has a curved bottom, the mold rack has shifted on me a few times and the resin has run out of one end or side of the mold. What do you do to prevent this problem? Thought about putting some sand in the bottom, but afraid of the dust storm when pressurizing.

TIA
Jake

Cut a 1/4" plywood circle that just fits inside of the pot. I attached a couple of dowels to each side. This way I can pick the molds out of the tank on the plywood rather than mold alone.

This will sit level in the bottom as it will level itself on each of the edges.....

That's how I do it with each of mine. I have many inserts for mine.

 

[antiquetoddler]

Curtis has plans on his web site for a rack that fits in the pot and will take care of your issue. I use it and it works great. Here is a link: http://www.turntex.com/images/stories/Curtis/PPRackPlan.pdf

 

[RetiredJake]

Curtis has plans on his web site for a rack that fits in the pot and will take care of your issue. I use it and it works great. Here is a link: http://www.turntex.com/images/stories/Curtis/PPRackPlan.pdf

I built the rack, that is what is tilting. I turned some plywood last night to match the contour of the bottom. Poured resin around the edges this morning to lock it in place. Checked to make sure the rack would still fit first.

 

[bubbamorse]

Curtis (MesquiteMan) has a plan for a mold jig on his website that I'm sure can be easily adopted to fit any pressure pot.

Tried my first casting in my HF pressure pot. Since the thing has a curved bottom, the mold rack has shifted on me a few times and the resin has run out of one end or side of the mold. What do you do to prevent this problem? Thought about putting some sand in the bottom, but afraid of the dust storm when pressurizing.

TIA
Jake