Very weird frame joinery... (w/pics)

[Robatoy]

Canvas for painting?

What do I win?

[lwhaley]

I have seen this type of joint used on a frame used for silkscreening tee-shirts. Such a frame is totally utilitarian and appearance is irrelevant. It must be sturdy since silk or nylon fabric is stretched quited tightly across the frame. Sometimes that joint is called a tenoned mitre. It can also be constructed using a splined mitre.

[Morris Dovey]

| Can you guess what it is for?

He (or a friend) is fixin' to stretch some canvas.

-- Morris Dovey DeSoto Solar DeSoto, Iowa USA

[Bruce Barnett]

Those are stretcher bars

are machine made. You buy the pieces the length you need.

[Larry W]

----

In article , David F. Eisan wrote:

[David F. Eisan]

Hello everyone,

My Dad called me on the phone and asked me to make him a frame this weekend. He said he had a sample and wanted me to make one just like it. What I expected and what he had were two very different things. I expected some odd profile he wanted reproduced on the router table, but instead what he wanted was a very specific method of joinery.

I have no idea what this joint is called. It is a non-glued frame that you drive wedges into to expand.

I wasn't exactly sure how to make it, but I was up for the challenge. This is my first one, and he wants a couple more.

Check out the pics,

you guess what it is for?

Thanks for looking,

David.

Every Neighbourhood has one, in Mine I'm Him

[RicodJour]

Stretchers for canvas/linen.

Is your Dad pulling your leg? Reason I'm asking is that the stretchers are not that expensive and unless you're making a lot of them you probably won't beat the price by all that much - particularly if you're using good wood like you should be using and you place some value on your time. Here's a homemade example on eBay:

guy is building them with knotholes. The stretchers should be kiln dried and straight-grained to prevent warping. Here's a place that sells a couple of different models of stretcher bars for very reasonable prices:

[Andy Dingley]

Stretcher joint. Some people say it's not even a joint, because it falls apart if you don't have the canvas in palce over them.

I posted details of my jigs for making them ages ago. They're two sliding table saw sleds (one for the mitres, one for the laps) and you might need a dado blade that's 1/4 the thickness of the stock.

[RicodJour]

The joint is designed to allow movement so that the canvas can be stretched taut by the wedges. Pinning the joint would prevent that movement. It is a nice joint, though - too bad it's always hidden. I wonder what the Japanese version would look like...probably something that would give Escher a headache.

R

[Upscale]

Could be a nice solid joint if one was to pin them together with a through dowel or something similar.

[Leon]

Yeah you do not want to do that. It would be like building a nice wooden drawer slide and then gluing the drawer slide halves together. ;~) It is not suppose to be stationary joint.

[Robatoy]

On Apr 9, 10:06 am, "RicodJour" wrote: I

Morris makes a joint like that.. I mean Escher style with a little Rubrik thrown in. Can only be made with a $ 10,000.00 chisel. =0)