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Laminated Springback

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Project by John Ormsby posted 2298 days ago 2547 views 6 times favorited 11 comments Add to Favorites Watch

Here are some examples of the results using Unibond 800 for laminating curves. The piece comes out of the form almost exact. Using special bending ply is also essentia. The same results can be achieved if using very thin pieces of solid wood. John

-- Oldworld, Fair Oaks, Ca





11 comments so far

View Scott Bryan's profile

Scott Bryan

27251 posts in 2405 days


#1 posted 2298 days ago

Thanks for the post, John.

It sure beats fabricating a plywood form each time you want to do this.

-- Challenges are what make life interesting; overcoming them is what makes life meaningful- Joshua Marine

View GaryK's profile

GaryK

10262 posts in 2572 days


#2 posted 2298 days ago

Very cool!

-- Gary - Never pass up the opportunity to make a mistake look like you planned it that way - Tyler, TX

View wuddoc's profile

wuddoc

51 posts in 2301 days


#3 posted 2298 days ago

John:

Your work is excellent.

If it is not a trade secret could you put up a picture of the underside of your form? I am wondering if you are using closely spaced ribs or have an inflatable bladder under the form?

-- Wuddoc

View John Ormsby's profile

John Ormsby

1276 posts in 2320 days


#4 posted 2298 days ago

The form is solid and what you are seeing is an 1/8” piece of ply glued to the top of the form to complete it. That way the form is perfectly flat and true. The pieces are later trued up on the table saw. I made this so it could be used on later projects. The inside of the curve is a 3 1/4” radius, which makes the finished pieces 4” radius on the outside.

-- Oldworld, Fair Oaks, Ca

View cajunpen's profile

cajunpen

14338 posts in 2649 days


#5 posted 2298 days ago

Interesting post – thanks for sharing it with us.

-- Bill - "Suit yourself and let the rest be pleased." http://www.cajunpen.com/

View Lee A. Jesberger's profile

Lee A. Jesberger

6646 posts in 2563 days


#6 posted 2298 days ago

Hi John,

Great work. Nice form work.

I’m wondering why you didn’t buy these pieces from your commercial supplier?

Was the radius not available?

Lee

-- by Lee A. Jesberger http://www.prowoodworkingtips.com http://www.ezee-feed.com

View John Ormsby's profile

John Ormsby

1276 posts in 2320 days


#7 posted 2298 days ago

Hi Lee,

I couldn’t find these from any supplier so I did them myself. They are 42” long.
These are 3/4” thick with a 3 1/4” inside radius.

Do you have a particular supplier in mind who might have these?

John

-- Oldworld, Fair Oaks, Ca

View Grumpy's profile

Grumpy

19270 posts in 2434 days


#8 posted 2298 days ago

Nothing like a different approach, great idea.

-- Grumpy - "Always look on the bright side of life"- Monty Python

View rikkor's profile

rikkor

11295 posts in 2458 days


#9 posted 2297 days ago

Did you make your vacuum press or buy it somewhere? Nice work.

View John Ormsby's profile

John Ormsby

1276 posts in 2320 days


#10 posted 2296 days ago

I bought a Vac-U-Clamp Mark X It is a 10 cfm gast rotary vane pump and works great. Vac-U-Press makes a great pump also. They are in maine and are very knowledgeable. They bouth sell a nice variety of vacuum pressing supplies and tools.

John

-- Oldworld, Fair Oaks, Ca

View unisaw2's profile

unisaw2

179 posts in 1619 days


#11 posted 1594 days ago

Just came across this post, great work. I’m looking for a vacuum system, so thanks for the information.

-- JJ

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