Sliding ring around dowel that can lock in place

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Forum topic by Linda124 posted 10-12-2017 04:42 PM 421 views 0 times favorited 1 reply Add to Favorites Watch
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10-12-2017 04:42 PM

Topic tags/keywords: question

I’m trying to fix an old art box into a portable painting (pochade) box. The lid is only 3/4” deep, and I need to work within that space to make something to hold canvas panels of different sizes. (There are hinged panels that come to the top of the lower half of the box, so no room to extend when the lid is closed.) I plan to have two 3/4” square dowels that slide up and down on 5/16” dowels. I will lock the square dowels in place with a pair of thumbscews on each.

To hold the panel, I plan to put two small blocks (with a slot to hold the canvas panel) on the upright round 5/16” dowels. When the box is closed, they will be on top of the bottom square dowel and below the top square dowel. When the lid is open, I want to rotate the blocks so they slide into a dado and are are perpendicular to the square dowels. The canvas panel then is held in the slots.

I made a test prototype and when the canvas pane is in place, it raises the back end of the smal blocks, so I need something that can go around the dowels, slide up and down and then lock the blocks in place.

If I thought I could make a ring around the dowel, I could put a thumbscrew through it and tighten it, but it’s too small to try. I thought something like a very small hose clamp would work, but not be pretty.

What do you recommend?

I am a complete novice to woodworking. Thanks very much!

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10477 posts in 4420 days

#1 posted 10-12-2017 05:44 PM

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