Step 3: Cut and laminate
Today I drew the shapes i want on one piece of ply and screwed 5 together. Then I cut out the shape with a circular saw and a router for the tricky bits.
I laminated the both sides separately . As I'm using steel for the connections I can laminate in 2 halves and dont have to do them in one go.
I used 5 layers of 4mm ply and that got me to 24mm total thickness. I used PVA white glue as it's cheap and I had some. The glue was painted on thick till the complete surface was covered and then I just clamped them on one by one. After about an hour each time I just stuck some screws in from the back to hold the last piece in place, took the clamps off and glued another one on.
The right way would probably be to wait a day between layers. Its amazing but after the 3rd one I released all the clamps just to see what would happen and it kept its shape. This is the first time I bent wood and although I know it works it still blew me away.
Its all drying in the shed overnight.
I laminated the both sides separately . As I'm using steel for the connections I can laminate in 2 halves and dont have to do them in one go.
I used 5 layers of 4mm ply and that got me to 24mm total thickness. I used PVA white glue as it's cheap and I had some. The glue was painted on thick till the complete surface was covered and then I just clamped them on one by one. After about an hour each time I just stuck some screws in from the back to hold the last piece in place, took the clamps off and glued another one on.
The right way would probably be to wait a day between layers. Its amazing but after the 3rd one I released all the clamps just to see what would happen and it kept its shape. This is the first time I bent wood and although I know it works it still blew me away.
Its all drying in the shed overnight.
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1
karlpinturr
says:
May 29, 2011. 2:21 PMReply
This is great - but how much of your 8x4 Ply did you end up using?
4
HanzieO (author)
in reply to May 29, 2011. 5:33 PMReply
I had the sheet cut into 12 pieces of aprox 1200 x 160 and I have 4 left over. I was going to do 6 laminations but stopped at 4
1
karlpinturr
in reply to May 30, 2011. 12:27 AMReply
Thanks - would you do more next time?
4
HanzieO (author)
in reply to May 30, 2011. 3:07 AMReply
No... I will do less timber with better glue and maybe a better, more informed choice of timber. It's plenty strong enough at 24mm thick
1
karlpinturr
in reply to May 30, 2011. 4:09 AMReply
OK, thanks again - I look forward to the next Instructable!
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