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Old 12th July 2013, 05:20 AM   #1881
GM is online now GM  United States
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FWIW, my fave PVA: Lineco Neutral pH Adhesive - BLICK art materials

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Old 12th July 2013, 04:27 PM   #1882
badman is offline badman  United States
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Quote:
Originally Posted by GM View Post
cool- I'll keep an eye out for it. Not surprisingly, I'm not thrilled with the PVA or the water based contact cement. Just not aggressive enough for doing a whole sheet at a time unless I wanted to make a proper sheet clamping system. Solvent based contact cement is only available in small containers here, due to the already unpleasant air quality...

I may just stick with the 3M type 90 adhesive as it was sufficiently aggressive to grab every edge.
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Old 12th July 2013, 05:41 PM   #1883
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I've been using it since it came out in the '70s to make foam core board architectural structures, scaled down speakers and prototype horn designs. Of course it makes quick, clean work of paperback and hardbound book damage and just glued back a partially unraveled TP tube used to hold a folded up printer power cord.

Just applied glue, squeezed it back together with my fingers, wiping excess glue off as I went and it was back in duty. Bonding a large number of loose pages back to the binder/cover OTOH requires enough glue to require some mild clamping while it dries though.

For large panel laminating, I just lay one piece on a non-skid surface, run a bead around inside the perimeter a bit and zig-zag/whatever some in the open area and 'slide' the other piece around on it a bit to somewhat distribute it, then lay a piece of 3/4" MDF or similar that's at least as large on top to 'clamp' it.

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Old 13th July 2013, 05:05 PM   #1884
xrk971 is offline xrk971  United States
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I made a Karlsonator in 0.53X scale with duial Vifa's. They sound fantastic!
A Speaker that Kicks Butt in Large Spaces
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Highly recommended!
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Old 14th July 2013, 11:55 AM   #1885
KLBIrd is offline KLBIrd  United States
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Looks nice!
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Old 14th July 2013, 03:17 PM   #1886
xrk971 is offline xrk971  United States
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Ken,
It sounds nice too. So much so that I have started on the stereo partner box. Pieces all cut out and need to glue. Also need more drivers. You should give it a try. It will probably work with two of the FR10's you like.
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Old 14th July 2013, 03:38 PM   #1887
IG81 is offline IG81  Canada
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Neat FC-Karlson!

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Old 14th July 2013, 07:21 PM   #1888
prezden is offline prezden  Canada
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Great looking speakers!
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Old 14th July 2013, 07:44 PM   #1889
Greg B is offline Greg B  United States
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Polyurethane glue works pretty well for gluing styrofoam, FWIW. There is one caveat: it tends to push the parts away as it foams, so some form of clamping is needed.
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Old 15th July 2013, 12:37 AM   #1890
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One neat thing with Karlsonator with dual drivers is to hook them up one left and one right for an awesome sounding mono speaker for a radio or parties. The dispersion is really good, I can stand almost 90 deg to the side and it still sounds good.
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