www.TK560.com

That should do it,.. 50 amp min will run it but larger is good in case you need it later for something and to minimize voltage drop under load.

The propane tank is a safe bet but you should remove the valve assembly with all its internal hardware.

The tank size depends somewhat on platen size but more on the shape and volume of your molds ...

I just viewed the link to the air tank from Summit racing. the very first review says the picture is misleading and the dimensions are different than advertised. that confirms my comment above that th ...

Darth, I'll respond here instead of e-mail so others can see it.

Tanks are a crapshoot,.. You really can't predict from the specs or PSI rating how they will hold up with vacuum. Generally thicker ...

Again, this is a very small thing that will not matter unless you use a two stage system. But then again, its easy to get right.

You are stopping 1/4 inch short of an airtight system. That little b ...

Gerald, Nice workmanship!

I see a leak path around your platen fitting. The intent is to pass the PVC fitting through the particle board and seal it directly to the aluminum or formica sheet glued ...

Hot water do work,... mostly. I do hear of the odd one that does collapse. could be thinning from rust inside. Could be that new stuff is made thinner than old stuff? either way an implosion is more s ...

http://www.westmarine.com/buy/west-marine--polyester-boaters-resin--P004_120_002_501

Its the most common type of resin used on every boat and corvette.

Plaster can be smooth if pulled from a smooth mold or slightly grainy if you sand off the skin, You don't need mold release and talc will cause surface defects so that's probably it.

Avoid paint if ...

Pet-g is generally not regarded as hygroscopic and I've never seen it bubble but other swear that it can. It may be possible but its unlikely. Most times its really polycarbonate mistakenly sold as pe ...

I use Polyester resin on wood/bondo molds but you can form over bare wood for a few parts. Many paints and varnishes get tacky when hot and you have to put messy mold releases on them. Use Polyester n ...

I use Polyester resin on wood/bondo molds but you can form over bare wood for a few parts. Many paints and varnishes get tacky when hot and you have to put messy mold releases on them. Use Polyester n ...

Sadly the watts per square inch doesn't mean much by itself. I have used ovens that ran 12 watts per inch that seemed to put out half the heat of the Hobby-Vac that uses closer to 7 watts. The differ ...

The largest obstacle to good sealing is the fact that the plastic is not always soft near the clamp frame and especially in the corners. That's why the Proto-Form has very large raduis corners as seen ...

Its funny how the industry standard for decades was 15 watts per square inch for thermoforming. You will see that figure published in all old books and catalogs. That excessive wattage allowed custom ...