Hi all
I am building Chris Williams 1.4.2 Topaz and the top ply is quite a tight bend the tail plane area, what is the best way to bend 0.7 ply without it splitting?
Regards
Rob
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Bending plywood
- Peter Balcombe
- Posts: 1399
- Joined: 18 Mar 2015, 10:13
- Location: Clevedon, North Somerset, U.K.
Re: Bending plywood
Rob,
Wet the ply with a moist cloth & then slowly iron it into position using a hot covering or household iron. Turn the iron temperature up to hot & the heat will boil the surface moisture to produce steam as the iron passes over it.
Iron will be hot enough when application instantly generates steam. Too hot will scorch un-wetted wood.
I regularly use this technique to bend 0.6mm ply wing skins, usually in parallel with bonding skins to structures using the PVA wood glue re-activation technique.
Have a look at John Greenfield’s video tutorial on skinning large scale models - LMA site & I think also on here somewhere in a useful tips section.
https://scalesoaring.co.uk/plywood-panelling/
You can pre-bend using steam from a kettle spout, else dribble boiling water over inside of surface whilst using pressure to promote curvature.
Hope this helps,
Peter
Wet the ply with a moist cloth & then slowly iron it into position using a hot covering or household iron. Turn the iron temperature up to hot & the heat will boil the surface moisture to produce steam as the iron passes over it.
Iron will be hot enough when application instantly generates steam. Too hot will scorch un-wetted wood.
I regularly use this technique to bend 0.6mm ply wing skins, usually in parallel with bonding skins to structures using the PVA wood glue re-activation technique.
Have a look at John Greenfield’s video tutorial on skinning large scale models - LMA site & I think also on here somewhere in a useful tips section.
https://scalesoaring.co.uk/plywood-panelling/
You can pre-bend using steam from a kettle spout, else dribble boiling water over inside of surface whilst using pressure to promote curvature.
Hope this helps,
Peter
Last edited by Peter Balcombe on 12 May 2022, 08:13, edited 1 time in total.
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- Posts: 52
- Joined: 30 Sep 2020, 11:18
- Location: Oxford
Re: Bending plywood
Thanks Peter,
Will give it a try later
Regards
Rob
Will give it a try later
Regards
Rob
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- Posts: 497
- Joined: 18 Mar 2015, 07:52
- Contact:
Re: Bending plywood
Ply sheeting tutorial video can be found here :-
http://www.ghostsquadron.co.uk/ply_shee ... plete.html
AEB
http://www.ghostsquadron.co.uk/ply_shee ... plete.html
AEB
AEB = Aeronautical Energiser Bunny (with thanks to CW)
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- Posts: 52
- Joined: 30 Sep 2020, 11:18
- Location: Oxford
Re: Bending plywood
Thanks for the help, it worked a treat.
Regards
Rob
Regards
Rob