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Stich and Glue construction: suggestions for material?
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outcast



Joined: 04 May 2004
Posts: 2432

PostPosted: Thu Jan 23, 2014 12:23 pm    Post subject: Reply with quote

http://www.clcboats.com/?gclid=CMK_mPDnlLwCFW1nOgodxDUATQ
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zirtaeb



Joined: 03 Jul 2009
Posts: 2431

PostPosted: Thu Jan 23, 2014 6:07 pm    Post subject: Reply with quote

Why not just lay up a couple layers of cloth, for the thinnest, lightest, layer?
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dvCali



Joined: 23 Aug 2007
Posts: 461

PostPosted: Thu Jan 23, 2014 7:15 pm    Post subject: Reply with quote

thombiz wrote:
No disrespect intended, but why use stitch and clue when you can do everything by vacuum bagging and have a much better chance of controlling the weight and strength of the finished product. If it is because you don't have access to a vacuum pump, then you should know it is fairly easy to build a very reliable vacuum pump for about $175.


But actually, just doing the nose of the board made me realize that I might be happy with a vacuum bag for more complex projects. So, Thombiz, any suggestion for a vacuum pump system, or a way to convert a compressor into vacuum. (I don't want to go again the refrigerator route). Is this too small: http://www.acpsales.com/EZ-Vac-Pump.html for up to 2-3' jobs?
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thombiz



Joined: 25 Jun 2007
Posts: 618
Location: Corpus Christi

PostPosted: Thu Jan 23, 2014 8:01 pm    Post subject: Reply with quote

In my opinion, the equipment contributes big time to the success of a project. I tried the refrig compressor route and wound up wasting foam, fiberglass, and divinycel. The compressor overheated about half an hour after I turned it on and the resin wasn't set. I knew I needed some help, so I searched and found this website:

http://www.joewoodworker.com/veneering/welcome.htm

where they have free plans for putting a good vacuum system together. Look under the yellow lettered heading of FREE VACUUM PRESS PLANS. The one I made is the red one near the bottom of the column.


To make my vacuum press, I purchased a used compressor tank off Ebay for about $40, like this one: http://www.ebay.com/itm/Craftsman-3-Gallon-Air-Compressor-Tank-/121226392801?pt=LH_DefaultDomain_0&hash=item1c39a7f4e1 then I purchased a good used Thomas vacuum pump off Ebay for about $60. Check here: http://www.ebay.com/sch/i.html?_sacat=0&_from=R40&_nkw=thomas+vacuum+pump&_sop=15
Then I purchased the switches, gauges, etc. kit off Joe Woodworker. It took a day or so to put together, but it works great and is the real deal and has held up very well.

If you decide you want to get into vacuum bagging, there are a few tricks you will need to know. One of them is use "slow" hardener. There's a bunch more, and it takes time to put them down in words, so if you think you want to proceed post here and I'll try to put them here for you to use.
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dvCali



Joined: 23 Aug 2007
Posts: 461

PostPosted: Fri Jan 24, 2014 1:11 am    Post subject: Reply with quote

thombiz wrote:
In my opinion, the equipment contributes big time to the success of a project. I tried the refrig compressor route and wound up wasting foam, fiberglass, and divinycel. The compressor overheated about half an hour after I turned it on and the resin wasn't set. I knew I needed some help, so I searched and found this website:

http://www.joewoodworker.com/veneering/welcome.htm


My experience with the refrigerator pump was that it was drawing sort of a vacuum but it was also discharging some static electricity that I never figured where it was coming from ... kind of a bit scary because I regularly got little shocks.

Thank you for the links, they are very good, I am tempted to go the ventury route since I do have a compressor.
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