When gluing wide wooden blanks, a long clamp is indispensable. Although this is a simple tool, it is not cheap at all in the store. So it’s more profitable to do it yourself. When you need several such clamps, then with self-production, the savings are enormous.
- Profile pipe 25×25 mm;
- threaded rod М16-М20;
- nuts, washers for threaded studs;
- corner 30×30 mm;
- rod 6 mm.
Clamp Manufacturing Process
For the frame of the clamp, it is necessary to saw off a section of a profile pipe with a length of 500 mm. One side is trimmed at 45 degrees.
It is optimal to make a couple of clamps at once, then all the parts are prepared in two sets. The second part of the bed is sawn off from the same pipe, also with a cut at 45 degrees, but already 120 mm long.
From a corner of 30×30 mm, it is necessary to cut a workpiece with a length of 40 mm, and 2 of 50 mm. If 2 clamps are assembled, then the details are needed, respectively, 2 times more.
A workpiece with a length of 55 mm is made from a profile pipe.
It must be cut from the end inward so as to put the face of the nut under the stud into the cut.
You also need a piece of a 6 mm rod with a length of 100 mm.
The same lengths of the corner are needed to make a tube out of them, which will slide on the bed. To do this, an inner corner is grinded into them to remove roundness. You also need to narrow them down by cutting off the extra width.
The parts of the bed, sawn down at 45 degrees, are welded. The seams must be cleaned to perfection. A corner is welded to the end of the short side. This will be a sponge for clamping the workpieces.
From the cut corners 40 mm long, you need to weld the tube onto the bed. To make it slide, paper is inserted between them to create a gap.
On the workpiece from the profile pipe with a cut inward, you need to weld 2 nuts screwed onto a hairpin so that their thread pitch coincides. The resulting seam is cleaned.
Next, a clamp support plate is made. For this, washers of different diameters are welded with a pyramid.
A hole is drilled at the end of the stud for a thin screw, and a thread is cut into it. Thus, you can screw the plate to the stud with a screw. The hat of the latter will hide in the wide holes of the large washers, so it will not interfere.
The second edge of the stud must be drilled across under the handle from a 6 mm bar.
To prevent the drill from slipping, you can grind it before that, removing the threads by 10 mm. On the handle itself, threads are cut along the edges to put the stop nuts.
The open end of the bed must be plugged. In order not to look for a plastic plug, you can cut off 3 tube walls by 25 mm and bend the rest. The gap formed is welded.
The resulting screw is welded to the sliding tube on a clamp strictly at right angles. Everything, the tool can be painted and used for its intended purpose.
The final touch will be screwing a bolt onto the upper end of the frame so that the sliding part does not fly off. As you can see, if you try, then such a clamp looks just like a purchased one, but the cost of making it is several times lower.