|Project by Dave Rutan||posted 03-28-2015 12:57 AM||1815 views||9 times favorited||11 comments|
As the old saw says: You can never have too many clamps. Over the past year or so, in the times that I have needed a bar clamp for a project, I always need more 2 footers than anything else. Since I recently came up with an upgrade for my old shop built clamps, I thought I’s make a few more from scratch to add to my arsenal.
So I thought that while I was building this, that I’d film it as well. Then I thought it would be a nice plus if I made it with pretty much only hand tools. I had to resort to my electric hand drill, but I stuck to twist drill and spade bits which are most likely to be in a DIY workshop. This example is very down and dirty, but it works. Using better wood, and the power tools in the normal wood shop will yield a more elegant looking result.
The wood is common 3/4 inch pine which for a 2 foot clamp needs to be about 5 feet long and 1-1/2 or 1-3/4 inch wide. Originally, I thought 4 feet would do, but I ended up 4 inches short. This size might actually be close to what one might cut off of a larger board. Ripping a length of 2×4 might also be possible.
The threaded rod is 3/8 inch and 9 inches long, (it’s a little long to be truthful.) In the movable jaw a nut on the rod is trapped between two washers, one on the shaft, and a slightly smaller one to help cushion the push and (hopefully) keep the rod from pushing through the jaw.
The arms on the stop are 1/8 inch strap metal 1/2 inch wide and they’re held in by 1/4 inch bolts. I didn’t put washers on either side of the stop jaw, but they would definitely make the stop more more freely.
You’ll notice I went away from the nifty flip grip for tightening that can be seen on my original design. I wanted to upgrade from the flimsy 1/4 inch eyebolts, but the eyebolts I can find in 3/8 do not have a long enough thread to work, so I went to a standard grip.
-- Ni faru ion el ligno!