Vacuum press

HowardH

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Jan 23, 2007
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I'm interested in getting started in doing some veneering and I've seen where having a vacuum press would be vital.  I don't mind spending a little bit more and getting a dedicated system like the ones from Vacupress.  Are there other competitors I should look at? This looks like a fun way to expand my woodworking horizons.  That project that [member=59550]cider[/member] posted got me to thinking about it. 
 
I used a veneer supplies bag with my VAC-SYS pump, which was a good way to get started without having to have too big an investment in terms of space for another tool.
 
JRD said:
You could also check outhttps://www.veneersupplies.com/products/Vacuum-Pump---Gast-11-CFM-120-VAC.html. I have used a Gast pump for years works great.

Good for you...Gast is undeniably the Cadillac/Mercedes of vacuum pumps. There are none finer that I’m aware of. Milwaukee used Gast pumps for their Vacu-Rigs which were industrial core drills and the industrial sector has specified and used Gast pumps for everything else. Expensive...hell yes, reliable...hell yes.  They’ll last a lifetime. 
 
Michael Kellough said:
Cheese said:
A bunch of people have mentioned this website. I don’t know from personal experience, just by word of mouth.
https://www.joewoodworker.com/veneering/welcome.htm

I’ve bought a lot of stuff from Joe and recommend him. The only caveat is that it was at least 5 years ago. Maybe even better now?

[member=396]HowardH[/member]  I've purchased stuff from Joe as recent as a few months ago with great results.  His veneers are nice and if you get on his email list, you can get info on the sales he has from time to time.  He has put the vacuum bags and other parts on sale in the past.  No phone support is available, but he will answer questions and offer advice if you email him.

Mike A. 
 
Agree with others in this thread advocating for Joe woodworker / veneersupplies.com. Recently purchased their project EVS auto cycling veneer press kit with a rebuilt Thomas dual piston pump. It wasn't terribly cheap, but I wanted a system that would support vacuum clamping in the future. He offers a clapping add on and Podz vacuum jigs which will probably be my next purchase. He is a two-person operation, but that also helps to keep prices down. And he doesn't sell anything he can't vouch for.

A couple of questions you should consider before buying:

1. How big of a workpiece do you want to be able to press? The larger the size, the more pump CFM will be required to evacuate the bags and maintain vacuum. And that requirement also jumps (almost double, I think) if you want to press curved pieces around a form.

2. You can spend a lot on just the bag. New poly bags can be several hundred dollars. Unless you know you'll be doing a lot of volume, stick to cheaper/repairable vinyl bags to start. Even better, befriend a pro woodworker and convince him to donate his old bag to you (I might be guilty of that one.)

3. Joe recommends staying away from rotary vane pumps, at least in conjunction with his press kits. Apparently he has fought a lot of electrical issues with this style pump. It's a bummer since rotary vanes seem to be a dime a dozen near me.

4. Use your quarantine time to read up on joewoodworker.com. It's his free site and contains a massive trove of superb advice on getting into the world of veneering.
 
I built a vacuum rig using Joe’s stuff and added an extra ball valve and 3/4 copper sweat fitting to the 1/2” copper manifold so the dust extractor could evacuate the bulk of the air from a big bag. The Festool 27mm hose end fits over the copper. It only takes several seconds to evacuate the bulk of the air from a 4x6 foot bag (then close the ball valve and turn off the d.e.) and the vac pump only needs several more seconds to reach the goal.
 
ryanjg117 said:
Agree with others in this thread advocating for Joe woodworker / veneersupplies.com. Recently purchased their project EVS auto cycling veneer press kit with a rebuilt Thomas dual piston pump. It wasn't terribly cheap, but I wanted a system that would support vacuum clamping in the future. He offers a clapping add on and Podz vacuum jigs which will probably be my next purchase. He is a two-person operation, but that also helps to keep prices down. And he doesn't sell anything he can't vouch for.

A couple of questions you should consider before buying:

1. How big of a workpiece do you want to be able to press? The larger the size, the more pump CFM will be required to evacuate the bags and maintain vacuum. And that requirement also jumps (almost double, I think) if you want to press curved pieces around a form.

2. You can spend a lot on just the bag. New poly bags can be several hundred dollars. Unless you know you'll be doing a lot of volume, stick to cheaper/repairable vinyl bags to start. Even better, befriend a pro woodworker and convince him to donate his old bag to you (I might be guilty of that one.)

3. Joe recommends staying away from rotary vane pumps, at least in conjunction with his press kits. Apparently he has fought a lot of electrical issues with this style pump. It's a bummer since rotary vanes seem to be a dime a dozen near me.

4. Use your quarantine time to read up on joewoodworker.com. It's his free site and contains a massive trove of superb advice on getting into the world of veneering.

The guy who owns the Vacupress company has some really good videos about how to determine what you need.  For those of us hobbyists, the 1.5 cfm pump seems more than adequate as well as the vinyl bag instead of the extruded Poly.  The price goes up in a hurry. 
 
I love to see some pictures of those setups--they sound pretty cool, especially the one with an extractor hookup!  Here's my super-simple version (the insulation is 4' x 8', which gives you an idea how big the bag is):

[attachimg=1]
 

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Just curious to know if have the top platen was needed or just a little icing on the cake?  At least the scored one.  Some recommend it, others don't. 
 
I've done it both ways (with and without top caul), but I feel like I get more consistent results with it.  I ruined several panels when I was starting out, so I've gotten a little superstitious about my process :)
 
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