Scoop Curve... can I use 4mm instead of 3mm ply |
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Maze
Registered User Joined: 13 April 2014 Location: China Status: Offline Points: 179 |
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Posted: 06 July 2019 at 5:25am |
!I did search for this via Google and didn't find any old threads on this! My wood dealer only has 4mm plywood. Can I use this to make the curved part on the super scoop? And should I use 4 layers and make 16mm or 5 layers and make it 20mm? The original plan says 6 layers of 3mm (18mm). Any advice much appreciated :) Edited by Maze - 06 July 2019 at 5:34am |
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bob4
Old Croc Joined: 29 February 2004 Location: Finland/Germany Status: Offline Points: 1842 |
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Laminating is tedious. Another way to do the curve is to kerf a board of normal thickness. Basically making a lot of perpendicular cuts with a table saw.
Google "kerf cut" "kerf wood" "kerf bending wood etc Then use one sheet of thin ply to cover it. Or make the kerf lines a part of your soundsystems look
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bob4
Old Croc Joined: 29 February 2004 Location: Finland/Germany Status: Offline Points: 1842 |
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http://www.speakerplans.com/index.php?id=vitorhd15
This how curve laminating should be done....... with a custom built clamping jig/form. I built four hd15, making the curves from 3mm mdf...... wasnt fun. If i ever did something like that again, i would build a jig like vitor.
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JonB67
Young Croc Joined: 22 April 2016 Location: UK Status: Offline Points: 1376 |
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It is tedious, without a solid former. Once you've made a former it's pretty easy.
Once laminated into a curve, its insanely strong. Ive not made a curve for a scoop.... but i did make a sledge this way!
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Maze
Registered User Joined: 13 April 2014 Location: China Status: Offline Points: 179 |
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Ok, thanks for the advice. Do you think 4mm make any difference? It's just an extra mm so I'm guessing it isn't a huge problem. But I'm admittedly very inexperienced.
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JonB67
Young Croc Joined: 22 April 2016 Location: UK Status: Offline Points: 1376 |
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depends on the ply.
Do some dynamic assessment! Grab a sheet and bend it along its length. If it looks like you can get it close to the radius without feeling like it's going to break, carry on.
Edited by JonB67 - 09 July 2019 at 7:47am |
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Dub Specialist Sound
Old Croc Joined: 15 November 2013 Location: Smethwick Status: Offline Points: 4873 |
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tbh 6x 3 layers or 4 layers of 4 ect wont make make a huge diff imho all will be really strong as its curved and glued ect, anything over 15mm built up lams will be pretty will be strong enuff tbh also plus your formers that the curve/scoop sits on
I own a monster metal Jig to do the scoop with heavy duty 4x2 battens with heavy duty metal clamps, to clamp the lams down too , so pretty easy for me...will do 4mm ply with ease too without Jig can get pretty tricky....
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Musical Roots Reggae Vibration is Life! for music is sound...sound is vibration...vibration is energy... and energy begets life. Therein lies my passion!...MUSIC IS LIFE...
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paulus
Old Croc Joined: 14 December 2005 Location: SOUTH BIRMINGHA Status: Offline Points: 3181 |
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i would just do a 3 or 4 parts using 18mm ? much better and solid to actually act as bracing to left and right of the cab when fixed to sides also
Edited by paulus - 09 July 2019 at 9:34am |
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TRENDSETTER SOUND SYSTEM
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paulus
Old Croc Joined: 14 December 2005 Location: SOUTH BIRMINGHA Status: Offline Points: 3181 |
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TRENDSETTER SOUND SYSTEM
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Dub Specialist Sound
Old Croc Joined: 15 November 2013 Location: Smethwick Status: Offline Points: 4873 |
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hahha ye man , cool bro :-)
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Musical Roots Reggae Vibration is Life! for music is sound...sound is vibration...vibration is energy... and energy begets life. Therein lies my passion!...MUSIC IS LIFE...
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Maze
Registered User Joined: 13 April 2014 Location: China Status: Offline Points: 179 |
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Where do people usually put handle holes on top of the scoop? I've been looking at so many pictures of scoops but most don't show the top of the scoop. Do people usually leave it without handle holes on the the top? or how? Thanks for all the replies btw, very helpful :)
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Dub Specialist Sound
Old Croc Joined: 15 November 2013 Location: Smethwick Status: Offline Points: 4873 |
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Normally at the top on rear on the box, and in the mouth panel at the front
so then just tilt over and grab the scoop/box
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Musical Roots Reggae Vibration is Life! for music is sound...sound is vibration...vibration is energy... and energy begets life. Therein lies my passion!...MUSIC IS LIFE...
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