may buy one of these. any input

I may buy one of these. http://www.avac.com/vacuum-chambers.php?src=overture. Any input would be appreciated.

Consider how you will apply heat?

Good point. Didnt even consider that. Thanks

ended in one post.... FD....

Give http://bestvaluevacs.com/ a look see.

I have used their lids on any win-co aluminum pots. It is interchangeable from 1g, 3g, 5g.

Make yourself one!!
If I can do it anybody can..

Find a thick walled Stainless steel vessel (Aluminum is more likely to crumple)

Drill a pilot hole about 2.5” below the rim of the chamber for a bulkhead fitting, secure with a washer.
Teflon tape all threading.insert a hose barb.

You will need 2 NPT 1/4” ball valves and an NPT T.

One ball valve is used to isolate the chamber from the pump to prevent pump oil from back-flowing into your chamber, the other is used to allow air back into the chamber.

The lid is the most costly part of the DIY chamber.
Ideally, you want a minimum of 1” of polycarbonate.

I am having success with my lid however, and I made it for 12$..

I bought a bunch of standard pieces of 1/4” acrylic lexan,4 pieces made 1”.

I drilled holes in the sheets all along the corners and edges and bolted them together with a lock washer.
I have a slight defection in the lid, but is holding up well.

Sirdabsalot462 said:

... Drill a pilot hole about 2.5” below the rim of the chamber for a knucklehead fitting, secure with a ...

Click to expand...

Been searching for my knucklehead fittings for some years now and all I find is these dumb bulkhead fittings..

Lmao!!
Knucklehead = Bulkhead

Obviously, I'm a stoner. Not a craftsman.

Haha
Edit edited the correct terminology, as to not be a knucklehead

I like the idea of popping a 4 way crossover on a pressure cooker lid (where pressure valve normally goes.) Put a gauge on top, release valve on one side and vacuum port on other side.

Lol I just thread a barb fitting for a lock nut and then you can attach anything. yall are technical! lol

SnapsProvolone said:

I like the idea of popping a 4 way crossover on a pressure cooker lid (where pressure valve normally goes.) Put a gauge on top, release valve on one side and vacuum port on other side.

Click to expand...

Good points! You can also add an inlet filter to the release valve, so as to filter all incoming makeup air.