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docbass
Joined: 18 Sep 2003
Posts: 2017
Location: NY
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 Posted: Wed Jul 28, 2010 6:11 am Post subject: Vacuum veneering technique |
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I've ordered a vacuum press. Can't wait to get my hands on it! How do I seal the bag when I'm doing a veneer on a rehab guitar body with a set neck? Just thinking ahead!
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steven0356
Joined: 11 Feb 2010
Posts: 447
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| Posted: Wed Jul 28, 2010 4:47 pm Post subject: |
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| I have no idea but post some photos when you can |
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atubbs
Joined: 23 Jan 2010
Posts: 445
Location: Mississippi
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| Posted: Thu Jul 29, 2010 12:12 am Post subject: Re: Vacuum veneering technique |
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| docbass wrote: | | I've ordered a vacuum press. Can't wait to get my hands on it! How do I seal the bag when I'm doing a veneer on a rehab guitar body with a set neck? Just thinking ahead! |
Do they make a bag large enough to fit the entire guitar in?
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marksound
Joined: 15 Aug 2005
Posts: 9336
Location: Edmond, OK
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| Posted: Thu Jul 29, 2010 1:46 am Post subject: Re: Vacuum veneering technique |
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| docbass wrote: | | I've ordered a vacuum press. Can't wait to get my hands on it! How do I seal the bag when I'm doing a veneer on a rehab guitar body with a set neck? Just thinking ahead! |
There's this lot lizard down at the truck stop. I hear she could suck start a Kenworth ... 
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RayRay
Joined: 17 Feb 2008
Posts: 3081
Location: Arizona/Colorado
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| Posted: Thu Jul 29, 2010 4:15 am Post subject: Re: Vacuum veneering technique |
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| marksound wrote: | | docbass wrote: | | I've ordered a vacuum press. Can't wait to get my hands on it! How do I seal the bag when I'm doing a veneer on a rehab guitar body with a set neck? Just thinking ahead! |
There's this lot lizard down at the truck stop. I hear she could suck start a Kenworth ... |
I don't know...but I hear her sister can suck the chrome off a trailer hitch ball.. 
I don't know where you got your vacuum stuff, but this site has a lot of free info on using and making and using equipment and they will answer you questions.. and have the most info on using the correct glues for this process.. 
http://www.veneersupplies.com/categories/Veneering__Supplies/Veneer__Glue/
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dougk
Joined: 11 Dec 2007
Posts: 7367
Location: About to loose his head in Sacramento
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| Posted: Thu Jul 29, 2010 7:42 am Post subject: |
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The bag setup I had (well... Have just need a new pump) basically had a pvc pipe you would wrap the end of the bag around and then snap another plastic C shaped pipe over.
Doc one thing I did on mine, I added a gate valve and a T fitting between the bag and pump. The T fitting had a cheap vacuum gauge one it. When the pressure would drop (aka loose vacuum) I'd kick the pump back on and reopen the valve for a minute. Usually only had to do this once on an 4 or 5 hour glue up period.
Now is the bag big enough to fit the entire guitar in or are you trying to seal around the neck?
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docbass
Joined: 18 Sep 2003
Posts: 2017
Location: NY
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| Posted: Thu Jul 29, 2010 7:48 am Post subject: |
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| dougk wrote: | The bag setup I had (well... Have just need a new pump) basically had a pvc pipe you would wrap the end of the bag around and then snap another plastic C shaped pipe over.
Doc one thing I did on mine, I added a gate valve and a T fitting between the bag and pump. The T fitting had a cheap vacuum gauge one it. When the pressure would drop (aka loose vacuum) I'd kick the pump back on and reopen the valve for a minute. Usually only had to do this once on an 4 or 5 hour glue up period.
Now is the bag big enough to fit the entire guitar in or are you trying to seal around the neck? |
I've ordered the pump and have been trying to decide on bag size. I could get a bag big enough for the entire guitar, but we're talking well over $120 and it's a size I'd I'd only use occasionally. I was hoping I could use something like a 2x2' bag and somehow seal it around the neck with some sort of double-sided tape/foam. If I do get a giant bag, I'll glue the fret board and veneer all at once! I'm sure it would be handy to have around!
Thanks for the tip on the valve, I'll give that a try!
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docbass
Joined: 18 Sep 2003
Posts: 2017
Location: NY
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| Posted: Thu Jul 29, 2010 7:51 am Post subject: Re: Vacuum veneering technique |
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| RayRay wrote: | | marksound wrote: | | docbass wrote: | | I've ordered a vacuum press. Can't wait to get my hands on it! How do I seal the bag when I'm doing a veneer on a rehab guitar body with a set neck? Just thinking ahead! |
There's this lot lizard down at the truck stop. I hear she could suck start a Kenworth ... |
I don't know...but I hear her sister can suck the chrome off a trailer hitch ball..
I don't know where you got your vacuum stuff, but this site has a lot of free info on using and making and using equipment and they will answer you questions.. and have the most info on using the correct glues for this process..
http://www.veneersupplies.com/categories/Veneering__Supplies/Veneer__Glue/ |
You guys are too funny. Just mention "sucks' and the minds wander all over the place!!! I have been going to that site to order some stuff. Joe's Woodworking is another great site for veneering hints and help.
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twangster
Joined: 05 Aug 2005
Posts: 5071
Location: Nashville Tennessee.
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| Posted: Thu Jul 29, 2010 7:52 am Post subject: |
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| Haven't seen guitarguy on here for a while but he was the vacuum veneering king. Mebbe pm him if he's still a member. |
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telepariah
Joined: 16 Jun 2010
Posts: 32
Location: BoCo
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| Posted: Thu Jul 29, 2010 7:59 am Post subject: |
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In the DIY ski building community, vacuum bagging is the easiest way to get into the game. Much cheaper and safer than trying to build your own pneumatic press. They McGyver them out of vinyl bags and refrigerator compressors. Cool stuff.
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docbass
Joined: 18 Sep 2003
Posts: 2017
Location: NY
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| Posted: Thu Jul 29, 2010 8:58 am Post subject: |
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| twangster wrote: | | Haven't seen guitarguy on here for a while but he was the vacuum veneering king. Mebbe pm him if he's still a member. |
I'll look around.
I did find lots of bag building materials and you can make a bag for less than 1/2 the cost of a prefab one. So, I might just build a guitar-size bag and a smaller body sized one as well.
I won't be ready to do the veneering until mid-August or so with all of the stuff I have going on.
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Helloid
Joined: 19 Mar 2006
Posts: 2901
Location: NoVA
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| Posted: Thu Jul 29, 2010 5:07 pm Post subject: |
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I thought about that for bending sides on an archtop. Looked like fun!
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docbass
Joined: 18 Sep 2003
Posts: 2017
Location: NY
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| Posted: Fri Jul 30, 2010 10:48 am Post subject: |
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| dougk wrote: | The bag setup I had (well... Have just need a new pump) basically had a pvc pipe you would wrap the end of the bag around and then snap another plastic C shaped pipe over.
Doc one thing I did on mine, I added a gate valve and a T fitting between the bag and pump. The T fitting had a cheap vacuum gauge one it. When the pressure would drop (aka loose vacuum) I'd kick the pump back on and reopen the valve for a minute. Usually only had to do this once on an 4 or 5 hour glue up period.
Now is the bag big enough to fit the entire guitar in or are you trying to seal around the neck? |
Good idea Doug, I'll try that.
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