I think I'll make these with the round wedge attached with a wingnut, and a groove hole along the inside of the clamp bar, which should make this adjustable to fit most projects. LOVE this - thank you so much.!
Fantastic hack!! I’ve been scratching my head trying to work out how to clamp the edge of a 80cm wide table in the absence of a long clamp and saw this video. I didn’t have a circular piece of wood to hand so I substituted it for a couple of jar lids of a similar diameter. They crushed slightly when I pulled it down tight but they still did the trick. Bravo!
This is plain awesome! I was just beating myself while thinking of buying extra long clamps for a table top, but this is just so much simpler! And free too!
Great video, Ive seen something very similar just with two pieces of plywood on both sides but it wouldn’t actually grip on to the wood and pull the boards tighter
It seems that you can add continuous pressure by having two of them angled towards eachother, then clamping, or pull them closer together (rubber band).
If i used two blocks instead of a circle and a block, would this provide enough clamping pressure for gluing edges of boards together to make one big board? I'm just starting out in woodworking so I don't have many clamps, and I want to build a bench out of 2x4's laminated together.
liked and subscribed going to make this I want to make a huge clamp machine so I always have the right clamp.. thank you for sharing I am going to build mine out of non rotten better quality pallets. I'll use acres at first but as I build up my supplies of clamps I'm going to change to bolts and nylon insert nuts and of course counter sink them.
this could be adapted to flat surface not an edge as such but on a flat surface you could put spacer board(s) between the clamp ends and make an essentially longer clamp.
I wonder if adding a small wedge might be useful as well. wedge the wheel so that it wont try and return or is that not needed? I will be making one soon!
Carlos (or is it Anthony? lol) I think the idea of the wheel is that it's kind of like a continuous wedge itself, and would resist rolling back due to the softness of the wood, or maybe jamming laterally against its pivoting screw's threads (not sure)? However, if you prefer using a wedge (say to distribute the clamping force over a couple of inches rather than a single point on the edge of a circle), even easier IMO would be 2 square blocks and a wedge (each attached with 2 screws), with the block at the end attached at a right angle, and the other one attached at a slight angle matching the angle of the wedge, so that the face of the wedge toward the workpiece when inserted comes out square. Also the angled block would be set further from the edge of the workpiece than 1/8", say whatever distance so that 3/4" or so of the wedge is hanging out when inserted all the way. Then just tap the wedge between the angled block and workpiece with a hammer to apply the clamping pressure. This arrangement does have the disadvantage of being harder to extract the wedge later, than just levering the handle to roll the wheel loose. And of course, if the wedge won't knock out with hammer blows, you could just remove either block's screws to release the wedge.
Or even easier than all that with 2 square blocks and a wedge (just saw this on another video) would be 2 square blocks and no wedge, each attached with a single pivoting screw, set at 1/8" like Howdini's wheel here. The flat side of the second block seems to clamp as effectively as the wheel, and is as easily tightened and loosened as the wheel, just with more surface against the workpiece than a tiny point on the edge of the wheel.
Yipikayee…!!! Fantastic…drilling holes every 50mm is better then a groove makes it adjustable, With a groove the blocks start sliding under the pressure. Whatever… thanks!
