How much pressure is needed?
The pressure does collapse. I fill the mold and as it cools, the level drops a little bit. Where should I add the sprew/riser? Thanks for your insight
I'll take a look at that. Thanks John
That unit in the ebay ad has a good price. Not sure how much shipping from NJ to CA would be. For burnout, doesn't the kiln need one of those...
I've been looking on CL. Nothing close by so far. I haven't seen a PID for that price. The units I've seen people recommend are the Cals controls...
I'll take a look at that channel. thanks
Is there such a thing as a budget conscience burn out kiln? Smaller units for jewelry cost in the $650 range but they can only handle a 3 inch...
I think you are correct that the mold is getting seasoned now. I think heating it helps too. The threads are 5/8 x 18 but I'm not 100% certain....
I heated the molds in a toaster oven for 20 minutes at around 115 degrees. I did two pours. One with all the was through the top and one with the...
aha! I didn't think of a double boiler. That should lower the temp. Thanks
I spray mold release due to the complexity of the part. I'm heating the wax on my kitchen stove at the lowest possible setting, which I suspect is...
I'll give that a try. I see a lot of benefits in having the mold warmed up. Maybe then I can just pour the wax from the top and it'll fill...
Here's the mold.
I'm having problems with small bubbles appearing in the wax part I'm working on. Seems you can't use vacuum to cast wax parts. I've tried tapping...
That's what I'm looking for. Simple, easy to make and doesn't take up much space. Thanks for posting the video
Gravity has it's places in the world but it has it's shortcomings in making a mold from silicone (my experience so far). I'm new to this whole...
Excellent! Thanks DavidF. I plan to make a vacuum table as I see a lot of benefits to removing all air from the investment.
Thanks for your insight
I have some ultracast ordered. Now, I need to buy some flasks. Seems the perforated flanged flasks is the way to go. The parts I place to cast...
The support staff at Smooth On said the higher temp need to melt the zamak would probably burn the mold, meaning I wouldn't get many parts from...
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