For the bed we used a sheet of hardboard 10 mm thick. First, using a jigsaw, we cut a circle with a diameter of 20 cm and cleaned its edges.
Four legs serve to raise the base above the surface. Each is made of 1/2 "PVC pipe. For a more elegant look, each leg was cut at an angle of 24 degrees. Then all four legs were glued exactly to the bottom of the hardboard frame.
Preparing the base for the cutting lever
A wooden bar serves as the basis for installing a lever. Its thickness is 2.5 cm, length - 5 cm, and it is cut at an angle of 25 degrees. Then this timber was ground and glued to the bottom of the frame.
The support of the cutting arm
We used a square aluminum pipe with a thickness of 10 mm. Two pipes were cut at an angle of 25 degrees, and their length was 60 mm. Then they were attached to a wooden bar with centimeter screws for wood.
Cutting lever and handle
The handle is made of the same aluminum profile pipe. First, prepare a 25-centimeter cut. Then one of its edges is polished with rounding inwards so that the handle of PVC pipe can be firmly glued to it. Further, the cutting lever is fixed between the supports with the help of a bolt screwed in through the drilled holes. The other end of the bolt is fixed with two nuts.
The electric motor and the basis for its fastening
The engine used in this project was removed from the wiper drive of an old car. It is powered by a 12-volt power supply. The basis for the installation of the electric motor was made of three glued-together fiberglass plates. First, the mounting holes are drilled, and then the engine is attached to the base with bolts and nuts.
The engine is attached to the cutting lever with bolts and nuts
The return mechanism
For the return mechanism, we used an old spring extracted from the vehicle's spare parts. One end was connected through a hole drilled in the cutting arm, and the other was bolted to its base. This mechanism will ensure a more comfortable return of the lever to its previous position.
I put a 100 mm disc that is commonly used in angle grinders.
The electric motor is connected to the 6 mm power supply plug via a switch. The saw is driven by a 12 volt power supply.
The protective cover is made of 100 mm PVC pipe. The pipe is cut and half of it is securely glued to the cutting lever directly above the disk. First, a plunge into the frame is done, and then a wooden support is glued perpendicular to the section.
The end result and the end-saw
The end result is impressive. The tool turned out compact and easy. He can quietly cut a wooden block 2.5 cm thick. The best thing about this machine is that it is made of ordinary and inexpensive materials and is set in motion by a 12 V power supply.