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Old 13th December 2004, 03:14 PM   #41
Kittle is offline Kittle  United States
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Quote:
Originally posted by noisenyc


braces are made of some alder lath i had lying around, 1.5" x .5", i glued 2 pieces to each inside face with silicone II adhesive/sealer.

drivers are bolted directly to the cardboard, which is super-thick 600lb/sq inch 2 ply corrugated.
600lb/sq in cardboard? where do you find such stuff at? I make stuff out of cardboard myself.. and while i found its possible to have decent cabinets, the walls ended up being 1.25 in thick. Your stuff sounds like it would be fun to try and work with.

IMO pp driver cones were invented by someone who kept cats... paper and other materials make you afraid to squirt the cat when he puts claws in the wrong place for fear of damaging your drivers.
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Old 13th December 2004, 03:44 PM   #42
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Quote:
Originally posted by Kittle


600lb/sq in cardboard? where do you find such stuff at? I make stuff out of cardboard myself.. and while i found its possible to have decent cabinets, the walls ended up being 1.25 in thick. Your stuff sounds like it would be fun to try and work with.
mmm sorry kittle, seems my memory was faulty about that cardboard test strength. been a while...this was the thickest i could find at the time that was easy to source. 275lb

i reinforced top and bottom of the box with another ply...used my router and circle jig to cut the holes.

top and bottom are around 3/4" thick.

probably not news for you.

http://www.uline.com/Browse_Listing_418.asp
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Old 13th December 2004, 04:19 PM   #43
TC is offline TC  United States
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note chicken grease stain.
Elvis would be proud of ya Blackie. And he'd love your work.

TC
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Old 13th December 2004, 04:28 PM   #44
Kittle is offline Kittle  United States
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Quote:
Originally posted by noisenyc


mmm sorry kittle, seems my memory was faulty about that cardboard test strength. been a while...this was the thickest i could find at the time that was easy to source. 275lb
ok now that makes more sense.

Thanks for the site link though -- now I can get cardboard in bulk w/o having to worry about food stains, or going broke buying stuff at the UPS store.

If yours sound good built like you have.. I may have some successes of my own in a while.
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Old 13th December 2004, 04:37 PM   #45
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Quote:
Originally posted by Kittle


ok now that makes more sense.

Thanks for the site link though -- now I can get cardboard in bulk w/o having to worry about food stains, or going broke buying stuff at the UPS store.

If yours sound good built like you have.. I may have some successes of my own in a while.
yes uline is pretty good but the outside boxes in the bundle will have cosmetic damage...cheap enough though.

all i can say is brace well, laddie, because that stuff is bendy when there's speakers bolted to it making bass. you will find box tuning to be a very approximate art hehe.

i banged 4 X RS1197's into a 20X20X4 box and mounted that right to the wall. not bad. calculated the ports so they are just holes in the box. the usual treatmetns...dammar varnish, hole in dustcap, etc.

that one i'm doing in wood soon i think. because everything sounds like what it's made of...everything.
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Old 13th December 2004, 04:53 PM   #46
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Originally posted by TC


Elvis would be proud of ya Blackie. And he'd love your work.

TC
if the big "E" wanted a build it would be made of bulletproof pink Lexan.

i made the annual pilgrimage to memphis last spring. i think i saw him at the barbeque shop on madison.

or maybe that was a pork-induced hallucination?
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Old 13th December 2004, 05:23 PM   #47
Kittle is offline Kittle  United States
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Originally posted by noisenyc

that one i'm doing in wood soon i think. because everything sounds like what it's made of...everything.
Heh - thats one myth im trying to dissuade.
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Old 13th December 2004, 09:12 PM   #48
adason is offline adason  United States
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Quote:
note chicken grease stain.
that one little spot looks like an accident
i suggest make a couple more of them and make it an art

still i wonder how can you have a decent bass out of a smallish fullrange with fs 53 Hz?

Quote:
anyway this bad boy does NOT lack bass
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Old 13th December 2004, 10:36 PM   #49
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Has anyone looked at honeycomb paper panels for building cabinets?

This stuff can be made extremely rigid and very lightweight. Aluminum and graphite variations are common in aircraft construction.

The stuff is often used in trade show exhibits and folding tables, for low cost, lightweight and durable constriction.

These guys seem to manufacture honeycomb planks in a wide Varity of materials:

http://www.bellcomb.com/index.htm


Iíve often wondered about using craft cell paper plank laminated both sides with luon plywood for cabinet construction. Should be cheap, rigid and non resonant.


(Dave, if we had the space, we might have more too. Yours sound lucky to be well cared fore.)

Watch out for Wolfie when he gets older. Speakers seem to create an unnatural attraction to cats to test their claws on. This often tests their humanís fondness for pets.
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Old 13th December 2004, 11:50 PM   #50
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Quote:
Originally posted by adason


that one little spot looks like an accident
i suggest make a couple more of them and make it an art

still i wonder how can you have a decent bass out of a smallish fullrange with fs 53 Hz?

well sir they don't make very controlled bass due to the floppyness of the box hehe but i mean in the small rooms you gots here in nyc if you have an f3 much lower than 40hz you get seriously obnoxious boominess...


Quote:
Originally posted by Da5id4Vz
Has anyone looked at honeycomb paper panels for building cabinets?

This stuff can be made extremely rigid and very lightweight. Aluminum and graphite variations are common in aircraft construction.

http://www.bellcomb.com/index.htm

Watch out for Wolfie when he gets older. Speakers seem to create an unnatural attraction to cats to test their claws on. This often tests their humanís fondness for pets.
mmm that honeycomb stuff looks kool...might make a good open baffle

wolfie so far is EXTREMELY well behaved with his scratching behavior. i bought him a nice sisal covered post as soon as i got him, and he lives for that thing! that and his cardboard laying-box i got from crapco i mean costco...and it says PJ PANTS in huge letters on it.

giving birth to yet another nickname. just in time, we were starting to call him "enema bag"
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