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| Bending Sycamore....... http://www.luthiersforum.com/forum/viewtopic.php?f=10101&t=32182 |
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| Author: | Darryl Young [ Fri May 13, 2011 8:31 am ] |
| Post subject: | Bending Sycamore....... |
I'm off work today! Too bad lightening hit the house last night so I'll spend most of the day dealing with heat/air and cable repair guys. Back on topic, I won't to try bending my first side today on a Fox style bender from John Hall. I have a quartersawn, sycamore orphan side that will be the first victim. Can anyone give me suggestions for thickness, temp, dry/wet, etc.? I called John to ask for recommendations and he isn't home so I thought I would ask the good folks here. |
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| Author: | JJ Donohue [ Fri May 13, 2011 9:12 am ] |
| Post subject: | Re: Bending Sycamore....... |
I believe QS Sycamore will be one of the easier species to bend. Try .090" thick and lightly spritz craft paper before sandwiching. Start the bend around 225*F and don't let it exceed 300*. Once it gets back to RT, heat it to 275* for 5 minutes. Leave it in the bender overnight before removing. That's how I'd do it. It's not the only way. |
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| Author: | WaddyThomson [ Fri May 13, 2011 9:50 am ] |
| Post subject: | Re: Bending Sycamore....... |
Sycamore is pretty flexible when quartered. I can almost install 2mm wide Sycamore purfliings without bending, they are so limber. It should bend like butter using JJ's formula. |
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| Author: | Bryan Bear [ Fri May 13, 2011 9:54 am ] |
| Post subject: | Re: Bending Sycamore....... |
Waddy, If sycamore is that flexible, is it too flexible for a rib? I was eying some a few weeks ago. . . anyone used it for ribs, should it be thicker than usual? |
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| Author: | WaddyThomson [ Fri May 13, 2011 10:15 am ] |
| Post subject: | Re: Bending Sycamore....... |
I don't think so. Once bent and attached, it'll be as stiff as it needs to be. I think JJ is right at about .090. It's a little thicker than I would use on other woods at .070 - .080. I have a Sycamore set cut out and ready to build with, but I'm putting it off until July, now. |
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| Author: | Darryl Young [ Fri May 13, 2011 10:28 am ] |
| Post subject: | Re: Bending Sycamore....... |
Thanks JJ and Waddy! Sounds like a plan. Where do you guys get the craft paper? |
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| Author: | Darryl Young [ Fri May 13, 2011 1:08 pm ] |
| Post subject: | Re: Bending Sycamore....... |
Well, apparently I get mine from my wife. She just went up and pulled a roll out of the attic! Gotta love a good woman......and I sure have a good one (she puts up with me and that's saying something) |
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| Author: | Darryl Young [ Fri May 13, 2011 5:29 pm ] |
| Post subject: | Re: Bending Sycamore....... |
Well, I did it......bent my first side and didn't hear any cracking! <smile> Used a 00 Martin form. I'm about ready to go cook it again for 5 mins as JJ suggested. Attachment: FirstBendSycamore1.JPG Attachment: FirstBendSycamore2.JPG
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| Author: | JJ Donohue [ Fri May 13, 2011 7:00 pm ] |
| Post subject: | Re: Bending Sycamore....... |
Pretty simple, eh? You're on your way now! |
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