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http://www.canadaspl.com/albums/rand...s011.sized.jpg
http://www.canadaspl.com/albums/rand...s012.sized.jpg [ May 13, 2005, 04:44 PM: Message edited by: Lessy ] |
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Very nice... you going to fill in the gap behind the piping though?
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ya, expanding foam
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let us know what you hit!
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1 Attachment(s)
interesting..also i saw an interesting box on termpro. heres a pic
Attachment 26388 |
What did we use for piping?? Looks loud!
Shawn |
im goin to try that as well. 1st attempt - port inside. 2nd attempt - port outside. im using pvc. so i'll try it out.
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Those look like aeroports to me. Am i right Michael CRX?
Lessy: I am not sure expanding foam is strong enough. Those bends are definately the weak point of that structure. However, I do not have anything to reccomend at the moment...damn late night addictions to cca...it makes me useless. |
stupid quetion, but wheres the sub go? is it just goign to mount on to the top peice?
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yup aeroports. i just use pvc b/c i dont know where to get aeroport. i heard its expensive so i just stick with pvc.
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nice job Lessy...make sure to fill the corners with something more solid than foam... the foam will absorb some of the resonance of the weak cardboard tubing... so use something solid or maybe use spray foam but stick chunks of 2x4 into it
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oh god...don't be a hack and don't use expanding foam AT ALL...what you do it glue around the seams of the cardboard and make sure you have a perfect seal and then get some fiberglass resin and mix it up and then add it to a whole bunch of play sand and pour it in...you could use straight resin but it would be weaker and way more expensive since sand is cheap. If I have learned one thing in SPL anything hollow in the box is BAD
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or and after you are done that it would be even better to take the cardboard out completely and cover the fiberglass/sand area with bondo and sand it till its smooth with a series of flexible abrasive discs on a angle grinder
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couldnt you fill it with sand and leave the top 1/2" without sand and fill it with epoxy to seal it, might get heavy but isnt that part of the idea
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meh, concrete. 'nuff said
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Awesome, thanks for the tips... I think I'm gonna use concrete to fill the void
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There is actually a way to bend MDF but the page i used to do it right actually disappeared on me.
If you cut plenty of parallel lines parallel to the part you wish to bend. You can experiment which how far apart the lines are and how many you use to make a semi circle with the radius you want. |
bending is a pain in the butt...concrete could be used except then you wouldn't be able to remove the cardboard which would make it not as good...of course this is because concrete won't bond to the wood like resin will and can't be applied in layers as thin without breaking so as it gets close to the outside of the curve where it gets very thin it will break. Although it is cheaper...and of course another downside is that the MDF will soak up the water from the concrete and swell like a bitch
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oh and filling it with sand and sealing it off isn't great as it won't be as dense as if you mix the resin in as sand will still have bits of air trapped in it and will actually serve to deaden the sound whereas with the resin reinforcing it it will reflect the sound...there is a way to do it and a way to do it right you have been warned lol
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So what your saying is use resin to fil the void. What about bondo, will that work
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yeah you could use short strand or long strand bondo...I wouldn't use regular bondo...of course that would be a hell of alot more expensive that using resin and sand like I already suggested
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Member # 411
posted May 14, 2005 06:20 AM -------------------------------------------------------------------------------- oh god...don't be a hack and don't use expanding foam AT ALL...what you do it glue around the seams of the cardboard and make sure you have a perfect seal and then get some fiberglass resin and mix it up and then add it to a whole bunch of play sand and pour it in...you could use straight resin but it would be weaker and way more expensive since sand is cheap. If I have learned one thing in SPL anything hollow in the box is BAD -------------------------------------------------------------------------------- From: Welland, Ontario | Registered: Feb 2001 | IP: Logged | ShockingCanada McKenzie Member # 411 posted May 14, 2005 06:24 AM -------------------------------------------------------------------------------- or and after you are done that it would be even better to take the cardboard out completely and cover the fiberglass/sand area with bondo and sand it till its smooth with a series of flexible abrasive discs on a angle grinder -------------------------------------------------------------------------------- Member # 411 posted May 14, 2005 06:20 AM -------------------------------------------------------------------------------- oh god...don't be a hack and don't use expanding foam AT ALL...what you do it glue around the seams of the cardboard and make sure you have a perfect seal and then get some fiberglass resin and mix it up and then add it to a whole bunch of play sand and pour it in...you could use straight resin but it would be weaker and way more expensive since sand is cheap. If I have learned one thing in SPL anything hollow in the box is BAD -------------------------------------------------------------------------------- From: Welland, Ontario | Registered: Feb 2001 | IP: Logged | ShockingCanada McKenzie Member # 411 posted May 14, 2005 06:24 AM -------------------------------------------------------------------------------- or and after you are done that it would be even better to take the cardboard out completely and cover the fiberglass/sand area with bondo and sand it till its smooth with a series of flexible abrasive discs on a angle grinder -------------------------------------------------------------------------------- CONCRETE NO NO NO THIS SET-YP IS HARDER you have 2 boxes? i was looking at it for some time i LIKE IT/THEM AND I'M AN SQ GUY |
So I tried both bondo hair and resin/sand....
Bondo hair was alot tougher to work with, what a disaster that was... resin/sand was soo much easy to mix, apply (cause it pours easily), and fills the gaps much better. |
If you lay a plastic bag in the gap, or line it with saran wrap or something like that, THEN fill with concrete or resin/sand or whatever, you can then remove the cardboard and buff off the stuck plastic.
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The concrete wont bond to the wood worth a damn, and the fact the mdf will suck the water out of the concrete before it gets a chance to properly set will leave you with a weaker concrete.
Id use the sand & resin combo to fill the gaps, then take the cardboard out, add a light skim of kitty hair, sand it smooth, then a light skim of polyester bodyfiller to make it silky smooth. But honestly the sand & resin behind the card board should be plenty good enough. |
lol isn't that what I said like 10 posts ago?
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