Each workshop requires machines, and the more of them, the better.
In this article, the author of the YouTube channel “Glavnyiy Mehanik” will tell you about how he assembled a cutting machine from a grinder for his workshop.
Materials
- Steel sheet 12 mm, 3mm
- Profile pipe
- Channel
- Bolts, washers, nuts
- Springs
- Shock absorbers
- Bicycle carriage
- Old table lamp
- Socket, switch, automatic
- Spray paint.
Instruments, used by the author.
-, cutting and cleaning discs
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- Sandblasting machine
- Vise, wrenches, hammer
- White corrector, tape measure, square.
Manufacturing process.
First of all, he began to manufacture the base of the machine. He marked the steel sheet with a thickness of 12 mm using just the right old glass. It has rectangular edges. Cut off excess material with a grinder. This will be the workpiece blank.
Since the master has a sandblasting apparatus at his disposal, he carries out the cleaning of structural parts with his help. A rotary table from a car disk is installed inside the camera of the device, the manufacture of which was described in this article. Using such a table facilitates various processes in the workshop.
From a profile pipe, he cuts blanks for legs and table frames.
Bolts with a screwed nut are inserted into the lower ends of the legs. The nut is welded to the profile, and a wide washer to the head of the bolt. Welds are cleaned.
So the master makes legs with an adjustable support.
Then he welds the legs to the countertop, reinforcing the design with jumpers.
As a rack, the author will use the 120th channel with a length of 350 mm
At the top of the rack, in a central line, drills two holes for the shock absorber rods.
The stand is welded to the table.
Now you need to cut and strip parts for clamps. To do this, the author cuts the pipe along.
Such blanks turn out here.
Now the preparation of the main guides. The author drills a small hole in the shock absorbers, and drains oil from them.
After draining the oil, the stem retracts and the hole is welded.
Next, it welds two elements of the clamps.
Drills two holes for tightening bolts in the workpieces.
The author paints the legs and frame with green spray paint.The rack and top of the table are in silver, and the shock absorbers themselves are in blue.
The rods are inserted into place, and attracted by two nuts.
From two steel plates, the author welds a corner.
To transfer the correct layout to the workpiece, he uses a corrector. Drills holes.
It cuts the corner into two parts, welds them into a U-shaped structure, and fixes it on the grinder.
A bicycle carriage will serve as the main part of the hinge. The author removes unnecessary details, and cuts off unnecessary parts of the frame. Cleans the surface of the workpiece with a cleaning disk.
Tightens both clamps around the shock absorber bodies, and welds the carriage pulley to one of them.
The holder of the grinder is welded to the pulley, and already to it is the handle.
Now a vertical support is welded to the clamp, on which the lifting spring will be mounted.
On the table, marking of holes for angular emphasis is applied.
A piece of a corner will serve as an emphasis, a steel bar is welded to one of its ends, and a clamping nut must be welded to its central part.
The bar is inserted into the hole on the table, and a bolt is inserted through the bottom surface of the table, and is pressed on top with a nut.
Time to think about lighting the work surface. The master dismantled the old desk lamp, drilled a hole in the top of the rack. I missed the wires, and fixed the lamp on the rack, using the standard washer and nut.
I made such a corner from a thin steel sheet, bending it with a hammer.
This corner is welded to the front right leg of the table. This will be a mount for the electrical part.
On the surface of the corner are screwed and commutated a switch for a lamp, a socket, and an automatic machine.
To protect against sparks, the author decided to weld a steel sheet between the counter and the table. However, during operation it became clear that the sparks from it scatter in different directions. Have to cover it with something.
The author paints the remaining structural elements, clamps, and the articulated mechanism.
Lubricating the threads of the legs, twists them into place.
Now you can fully assemble the machine. First, the shock absorber bodies are pushed all the way to the bottom, and clamps are tightened on them.
Then the grinder is installed in its place.
You can pull the lifting spring.
The emphasis is set on the table, and the angle adjuster. The author did not provide data about their manufacture.
A grinder is installed on the grinder, and a disk.
The emphasis is placed at an angle of 45 degrees, and is blocked by a small pin. Also additionally fixed by the handle.
So, the machine is almost ready. The lifting mechanism works successfully.
On the back of the hinge mechanism, the author realized an adjustable stop mechanism.
It remains to cut through the working groove in the table, and further expand it.
Now you can start the test. First, the author fixes a small profile pipe with a clamp, and cuts off the workpiece at 45 degrees.
And here’s the more difficult candidate - the 120th channel. Shock absorbers are useful for cutting it, which allow you to move the saw to yourself, and then gradually advance it along the workpiece forward.
This is the quality of cutting blanks from this machine. All angles converged perfectly.
I thank the author for the very original idea of creating a pendulum saw for the workshop!
All good mood, good luck, and interesting ideas!
Author video can be found here.