tepictoton
Well-Known Member
Yes, I forgot those, the waxes...that's why wintterizing is a good idea, always
Can vac all you want, waxes will stay put...
Can vac all you want, waxes will stay put...
Cheap Vacuum Purger
- Thread starter MGG
- Start date
I drip my liquid gas into 99% alcohol, and let it sit in the sun with a plastic box over it to keep out the bird poop etc...
no bubbles...
then at night I roll the blob into a tubular form and lay it horizontally on an inclined sheet of slick rubber stuff...
in hours it drapes and spreads out, then i fold it over and keep doing that ...
I think vacuum purging may be a fable to make you more reliant on the clubs etc. ..
the only diff i can see is the "amber glass" is much easier to handle.. and amber...
oh, and to answer your q. I vote not sufficient vacuum number achieved by the mightyvac to do what ever it is they think vacuum purging does.
.
no bubbles...
then at night I roll the blob into a tubular form and lay it horizontally on an inclined sheet of slick rubber stuff...
in hours it drapes and spreads out, then i fold it over and keep doing that ...
I think vacuum purging may be a fable to make you more reliant on the clubs etc. ..
the only diff i can see is the "amber glass" is much easier to handle.. and amber...
oh, and to answer your q. I vote not sufficient vacuum number achieved by the mightyvac to do what ever it is they think vacuum purging does.
.
SquidgyB
Well-Known Member
I haven't seen this suggested anywhere, and there may be good reasons not to use this method that I do not know about, so please do say so if there's something I've overlooked...
How about (for a bit of a ghetto setup) using a freezer/fridge vacuum pump as a basis for a cheap vac setup? A couple of valves, chambers - and if you're worried about running constantly you could set up with a vacuum switch/relay.
This is a commonly used setup for vacuum bagging epoxy resins in the radio controlled aircraft world. I imagine that for BHO setups (I'm very new to this, so it's all theory-craft to me) you want a quick drop to ~28/29mmHg? In which case the valves and chambers are important.
I've done this myself with the intention of vacuum bagging some foam wings but never got round to it - they easily pull a full vacuum, and with a relatively small investment you can put together a relatively "potent" vacuum system.
Anyhow, just throwing it out there...
How about (for a bit of a ghetto setup) using a freezer/fridge vacuum pump as a basis for a cheap vac setup? A couple of valves, chambers - and if you're worried about running constantly you could set up with a vacuum switch/relay.
This is a commonly used setup for vacuum bagging epoxy resins in the radio controlled aircraft world. I imagine that for BHO setups (I'm very new to this, so it's all theory-craft to me) you want a quick drop to ~28/29mmHg? In which case the valves and chambers are important.
I've done this myself with the intention of vacuum bagging some foam wings but never got round to it - they easily pull a full vacuum, and with a relatively small investment you can put together a relatively "potent" vacuum system.
Anyhow, just throwing it out there...
SquidgyB
Well-Known Member
Well, as with any ghetto setup you can simplify or complexify your system according to your ability to invest or improvise, but a basic setup is like what's shown in this instructable:
http://www.instructables.com/id/Making-A-Fridge-Compressor-Into-A-Vacuum-Pump/
The main money spent will be on a gauge (if you think it's required, these pumps pull right up to 28mmHg so you may not feel the need for one) tubing and a switchbox/electrics so as not to have a straight mains cable going into the pump.
When I put my system together (currently disassembled in a box somewhere,else I'd post some pics) I had an electronic adjustable vacuum switch tied to a 12/240v relay along with the gauge on a ballast chamber so I could adjust the level of vacuum accordingly, but this isn't really needed here.
e: here's a pic of the vac chamber at least:
From what I've read up on since posting, I don't think a quick drop to vacuum is required, so even a chamber and tap aren't needed for a really basic setup, just the main vacuum chamber, hose and a pump.
I hope I'm helping out here and not muddying the waters further, but this has been a standard cheap way of getting a vacuum in other hobbies I've been interested in, and it seems like a pretty decent solution here too.
Oh, and one thing to be careful of - the tennis ball over the outlet that the guy shows in the instructable is essential. Otherwise fine mineral oil mist is sprayed out of the outlet.
http://www.instructables.com/id/Making-A-Fridge-Compressor-Into-A-Vacuum-Pump/
The main money spent will be on a gauge (if you think it's required, these pumps pull right up to 28mmHg so you may not feel the need for one) tubing and a switchbox/electrics so as not to have a straight mains cable going into the pump.
When I put my system together (currently disassembled in a box somewhere,
e: here's a pic of the vac chamber at least:
From what I've read up on since posting, I don't think a quick drop to vacuum is required, so even a chamber and tap aren't needed for a really basic setup, just the main vacuum chamber, hose and a pump.
I hope I'm helping out here and not muddying the waters further, but this has been a standard cheap way of getting a vacuum in other hobbies I've been interested in, and it seems like a pretty decent solution here too.
Oh, and one thing to be careful of - the tennis ball over the outlet that the guy shows in the instructable is essential. Otherwise fine mineral oil mist is sprayed out of the outlet.
Last edited:
