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Thread: Need urgent help in bending ply
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14th June 2012, 03:21 AM #1New Member
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Need urgent help in bending ply
hi all, i am currently studying dt in the hsc and for my major design project i am constructing a wake skate. you probably dont know what that is but basically i have to bend a 15"x38" piece of ply to create the board. now i was wondering if there is a way to bend the ply if it has already been glued. i am thinking of steam bending it, but as i am a complete amateur im not sure what to do. if this way wont work please help or if there is a better way please inform me, need urgent help.
thanks, jake.
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14th June 2012, 07:54 AM #2
You need to laminate several pieces of thin ply together using a form. A pic of what you want to do would be useful.
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14th June 2012, 11:15 PM #3New Member
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thanks for the reply but im not sure if you correctly understand me. i already have cut the shape out with ply already glued together. is there a way to bend it now or will i have to start over by bending by laminating and glueing?
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15th June 2012, 07:15 AM #4
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15th June 2012, 07:25 AM #5
Wake skate construction - Step two.
see where this link takes you.
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18th June 2012, 07:21 PM #6Novice
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For my Hsc i have just bent quite a large piece of ply. I used flexi ply which worked extremely well and laminated 3 pieces together using megapoxy 69 glue and then clamped it into a mould. I honestly would have no idea how you would bend a solid block of ply, you could try steaming but it could possibly turn disastrous. I would follow the instructions in burraboy's link above
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25th June 2012, 11:36 PM #7New Member
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thanks heaps for the reply guys. i have a mould set up and im going to test a few different ways to bend including kerf cut and steaming. but if they fail (most likely will) i am going to have to start over and go by that guide.
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25th June 2012, 11:43 PM #8
You can't bend thick ply. But you could glue layers on where you want the shape to go up and carve it with a sanding disk on a hand held grinder. Otherwise it is a trip back to the drawing board an the ply supplier to get "bending ply", which is thin ply that you laminate over a form to make a thicker sheet.
Don't you have a teacher you could ask this stuff of?
BTW, we probably do know what a wake skate is.anne-maria.
Tea Lady
(White with none)
Follow my little workshop/gallery on facebook. things of clay and wood.
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26th June 2012, 12:20 AM #9
Jake
steaming the ply in order to bend it is so unlikely to work that I wouldn't bother trying
in a word, no
yes you will have to start over and bend and glue laminates over a former
Jake it's the last week of term, save yourself the time and agreviation.
start with thin layers, say 3mm thick, and bend them over a former using epoxy or another waterproof glue and clamps
I've bent and glued two layers of 4mm ply using a male and female former and clamps
cut the plies oversize and trim to shape once the glue is fully dryregards from Alberta, Canada
ian
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28th June 2012, 07:00 PM #10
if it doesnt work and you gotta start again go to a hardware store and ask for bending ply
it comes in 2 forms bending across the sheet and the other is bending end to end
a standars sized sheet 2.4 x 1.2 you can bend the side together using your hands its that flexable
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