3D Demystifying Vacuum Bagging of foam wings!!

[Terryscustom]

I should note, for the 4.5 hours that the tube was in the vacuum bag, my pump ran TWICE!! 10 gallon vacuum reservoir is pretty badass!!

 

[Bipenut]

I should note, for the 4.5 hours that the tube was in the vacuum bag, my pump ran TWICE!! 10 gallon vacuum reservoir is pretty badass!!

I was going to ask how often you pumps would kick on with that big tank. How long did it take to pull the air out of the tank when you first fire it up?

 

[Terryscustom]

I was going to ask how often you pumps would kick on with that big tank. How long did it take to pull the air out of the tank when you first fire it up?

Maybe 15-20 seconds. If I was not using 1/8" hose it would be way less. Even 1/4" line would probably only take a few seconds. I'll bet it will run a few more times with the wings I'm going to vacuum in the next day or two just because the foam holds a little air. I'll keep track of it when I get those going.

 

[Bipenut]

Maybe 15-20 seconds. If I was not using 1/8" hose it would be way less. Even 1/4" line would probably only take a few seconds. I'll bet it will run a few more times with the wings I'm going to vacuum in the next day or two just because the foam holds a little air. I'll keep track of it when I get those going.

That is a lot faster than I thought, but you do have two pumps going. That is very cool.

 

[Terryscustom]

That is a lot faster than I thought, but you do have two pumps going. That is very cool.

I actually only had the larger pump plugged in since it was one bag. With both pumps running it will do a full wing bag in 20-30 seconds.

 

[Fibertech]

Terry...I have done a few sockets in the past but not bagged. What was the variance of OD throughout the tube?

 

[Terryscustom]

Terry...I have done a few sockets in the past but not bagged. What was the variance of OD throughout the tube?

Quite a bit but since it was getting poly-glued into a foam wing it did not matter. Next time I'm going to try again by wrapping it with parchment paper, taping the ends and sticking that in the vacuum. The stretch wrap deal is what made my outside funky. Inside was perfect fit.

 

[tylerzx9r]

Nice Job Terry, As we talked during the Viper ST build I was wondering how long it would take to vacuum the tank down. I was surprised to see it wasn't very long at all. Looks like I better start saving money for a vacuum system!

 

[Terryscustom]

So I had a dehumidifier crap out but it sounded like it was still running. I broke it down and did some poking around with a volt meter and figured out that all you need to get the pump to work is the capacitor that is already right there. I cleaned out all the dehumidifier parts and hooked up a hose to my 10 gallon system to see what it would pull.

HOLY CRAP!!! This thing pulls more volume than the ACP pump!!! It pulls almost exactly the volume of my $400+ larger pump!!!

I evacuated this 10 gallon tank to 10HG in 60 seconds exactly. Wow, this is cool. So with this I could get an adjustable vacuum switch from ACP and a gauge and I would have a complete vacuum system for a few dollars.

This dehumidifier has been in the corner in my basement for some time and I have another one that is on it's last legs and warranty is gone. I may have another pump from that one to try as well.

 

[3Dchief]

That's awesome! What else would have a similar pump that could be re-purposed? Looks just like a refrigerator pump.