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18" scoops build advice needed please..
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bill-77 View Drop Down
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    Posted: 21 November 2007 at 9:11pm
hi all forum members i,m planning to build x6 standard scoop box,s old school style...what i would like to know from the exsprienced in forum is how many  8ft by 4ft sheets of ply wood will i be needing for a single scoop box? i will be using the measurments from my other x2 scoops......  and would the standard wicks ply wood be ok to use ? £22 a sheet....or will i need to use the exspensive marine birch ply wood ?.....i have built small scale box,s in the past but nothing to what i,m in the process of doing ,,so i have some exsprience..tips and suggestions from the the exsprienced would be appreciated many thanks regards bill Wink

Edited by bill-77 - 21 November 2007 at 9:12pm
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TONY.A.S.S. View Drop Down
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Just use muti-laminate ply. Normal baltic birch isn't marine ply. I assume you have the cutting list, so draw your parts on to a scaled down 8x4, and then you'll have the answer. It'll be a good way of familiarizing yourself with the forth comeing project.
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bill-77 View Drop Down
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Points: 102 		Post Options Post Options   Thanks (0) Thanks(0)   Quote bill-77 Quote  Post ReplyReply Direct Link To This Post Posted: 21 November 2007 at 9:32pm
nice one tony a,s,s i appreciate your advice ....tony i heard alot of people use car chip spray to spray the cabs,,whats your opinion on this ? ..my other x2 scoops are painted with standard paint,,,what would be the best paint to use? somthing durable and long lasting thanks bill
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http://www.speakerplans.com/forum/search_results_posts.asp?SearchID=20071121224139&KW=speaker+paint
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As a manufacturer, I've always stuck to pretty std. stuff In my position, I've always had to concern myself with production. Which means easy access from a reputable supplier, and buying in quantity always gets a good price. There could be some amazing material out there, that could used in a one off situation. If you went into production with car chip paint to do it properly would cost a fortune with the specialized equipment. It's unlikely that Fords use a can.
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bill-77 View Drop Down
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Points: 102 		Post Options Post Options   Thanks (0) Thanks(0)   Quote bill-77 Quote  Post ReplyReply Direct Link To This Post Posted: 22 November 2007 at 9:47am
thanks guys i,m gonna give this project a tryCry lol see how i get along ,,,i,ll stick to convential d.i.y paint to keep the cost low as possible...i was reading in a another forum some one suggested to  use chip board and build a prototype....i might just do that build x1 to get familiar and inprove my skills,,,Embarrassed lol well if i get stuck i,ll let you guys know ,,thanks for advice and guidence regards bill..
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i'm close to finishing off a pair of scoops myself at the moment, you will use the best part of two 8x4 sheets of ply per cabinet as the sides of scoops are quite large. dont forget to budget for the thinner sheets of ply you need to form the actual scoop part.
 
scoops are fairly easy to build as there are no particularly difficult cuts required, so i wouldnt bother with a chip board proto type.
 
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bill-77 View Drop Down
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Originally posted by Static Age Static Age wrote:

i'm close to finishing off a pair of scoops myself at the moment, you will use the best part of two 8x4 sheets of ply per cabinet as the sides of scoops are quite large. dont forget to budget for the thinner sheets of ply you need to form the actual scoop part.
 
scoops are fairly easy to build as there are no particularly difficult cuts required, so i wouldnt bother with a chip board proto type.
 
  thanks static age for that tip...i was having a inspection at my other built x2 scoops and they seem to have that classic scoop part made out of some sort of thin mdf material ,,its very smooth ,,doesnt feel or sound like thin ply wood as its very hollow sounding....but i will use your advise and use thin plywood i reckon its more durable,,,what speakers will you fitting in your x2 scoops static? thanks for sharing your knowledge regards billWink
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i will be fitting Fane Colossus 18XB's in my scoops to match my other scoops.
 
here is a handy tip from Rog regarding the scoop section...
 
'To make the curved part of the horn flare bend a piece of 3 mm plywood around some battens that have been glued and screwed to the side walls to form the curve, then glue and nail another piece of 3mm plywood on top of the first piece. Keep doing this with another 4 pieces of 3 mm plywood until you have all 6 pieces glued and nailed together. The finished curve should now be 18 mm thick. For a better job use 4 pieces of 18 mm ply to make the curved former. Use a jigsaw to cutout the curve from the 18 mm ply and glue and screw them in place evenly spaced across the width of the curve. The 2 outer most formers should be positioned right against the cabinet walls.'
 
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Thumbs%20Up nice build static,i see what you mean by over lapping the plywood sheets to make a solid rigid scoop very nice...lol i cant wait to get mine started,,,thanks again static for advice and tips much apreciated regards billWink
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Points: 1652 		Post Options Post Options   Thanks (0) Thanks(0)   Quote Static Age Quote  Post ReplyReply Direct Link To This Post Posted: 22 November 2007 at 4:30pm
Bill, thats not my build. that pic is a super scooper built by Dom, the pic is taken from the readers projects section on the sepakerplans home page, see...
 
 
I posted the pic as an example on how to assemble the 'scoop' part.
 
my scoops are currently at a similar stage but minus the scoop, i will get some step by step pics up when i have finished the project.
 
Dan.
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oh ok sorry thought that was your build lol ,,,i was wondering that looked very diffrent from the old school classic scoop lol ..static those pictures of yours would be very handy and educational for beginner project builders like my self ..will be looking forward to seing them Thumbs%20Up.....i,ll post some of my project pictures when i get the first finished lol dont know how long that gonna take me Embarrassed but i,ll be starting the first on sunday..static did you cut the pieces out with a jig saw or you took your measurements to a cutting merchant and have the x2 8x4 cut by them ? thanks regards billWink
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