Circular saw from the usual grinder

Having a whole range of power tools at home is too expensive. For example, a circular at home is required quite rarely. Sawing up the boards can be made modernized grinder.

Electric saw

The manual disk power saw from the Bulgarian turns out replacement of a standard cutting disk with a disk on a tree.

However, this option is suitable for short cuts of sheet materials or cutting thin slats. With a large length of cut or thick bars exist disc skew hazardjamming it. It will be much easier to hold the saw, if the handle is not positioned perpendicular to the tool axis, but made a continuation of the body.

It is not recommended to remove the protective cover, as it will protect against the ingress of sawdust into the face.

Craftsmen also make a hand chainsaw from the grinder. However, such a tool is dangerous for the user: the absence of a chain stopper can lead to unpredictable consequences. In addition, the chain is not lubricated, which leads to its rapid wear.

Miter saw

The trimming, that is, the cross-cutting of boards or bars at a right angle, is more qualitative if you use a special device.

From the Bulgarian, you can also make such a machine yourself.

1. For this, a grinder with a disk on the tree is fixed on turntable perpendicular to the direction of the length of the board so that the plane of the disc is strictly vertical. One mounting point should be located in the area of ​​the gearbox, and the second - on the opposite end of the machine.
2. The gearbox housing has threaded holes for mounting regular handles. With the help of the corners and these holes, the grinder should be attached to the moving part of the machine.
3. The back of the case is attached to the board with a yoke. Protective cover The disc can be used from any suitable power tool.
4. Closer to the vertical support need to fix hard corner. It should be located strictly perpendicular to the disk plane, both in vertical and horizontal directions.

The spring at the rear end of the bar serves to return the miter saw to its original position after the end of the cut. The horizontal table must have a transverse groove, which includes a disk when cutting the board. Disc diameter choose, focusing on the width of the boards. So trimming can be done in one go. The main thing is that the inner hole of the disc should coincide with the mount on the axis of the gearbox.

When working on such a machine should be aware that the drive power is not designed for heavy loads. Therefore, the rotating disk to the surface of the sawn parts need to be brought smoothly, the incision is made without strong pressure.

Table saw

Sometimes there is a need to change the width of the board or the thickness of the bar. The best option for such work is a circular saw, especially if there are a lot of boards. For cutting boards of small length (1-2 m) is very useful desktop version of circular. It is not necessary to buy such a machine, you can do it yourself from the same grinder.

The design of the circular saw is much more complicated than the trimming machine.The contact time of the saw blade with wood is quite long, therefore, the reliability of fastening the casing of the grinder to the frame should be higher.

This is how one of the desktop circular options might look like.

The photo shows that the desktop consists of two planes:

• the top table is designed to advance the workpiece;
• bottom serves as an emphasis for a grinder.

The disk passes through the groove in the upper surface. If the angle of contact between the two planes is provided with rotary hinges, then it will be possible to adjust the working height of the saw blade to reduce the area of ​​rubbing surfaces.

On the upper surface of the table, the head of the bolt with which the grinder is fixed is clearly visible. Protruding bolt limits the width of the board to be processed. You can cope with this problem by coating another layer of plywood.

Switching the grinder on and off with the key on the case is rather inconvenient. If the key can be fixed in the working position, then on the outer part of the machine it is worthwhile to install an outlet with a switch.

The stop should be as long as possible to avoid the board deviating from the cutting direction.It is better to mount the corner so that the working distance between it and the disk can be changed: then the width of the part being cut will also change.

Stationary Circular

Use the grinder as a working mechanism and stationary conditions. The bed in this case will have a slightly different design. The stationary version implies the availability of free space and a large amount of work. Therefore, the entire structure can be made more solid, massive, and, therefore, more reliable.

Bed frame can be made of a corner with a welded joint. Bolted and other types of detachable fasteners from the constant vibration lose their grip, the design begins to wobble.

From above a metal framework fastens a desktop from a wide board or thick plywood. It will move the workpiece. Thrust corner Equipped with a movable mount to adjust the cutting width.

It would be nice to provide adjustment of the height of the table or the removal of the disk above its surface - then it will be possible to cut out the longitudinal grooves in the board.

Located on the side of the machine governing bodies: socket and on-off buttons.In the stationary version, the key on the body of the grinder makes sense to exclude from the scheme. If there is enough space, a high power sander can be used as a drive.

How to make a sawmill from the grinder, shown in this video:

The nuances of using a homemade circular

It should not be overlooked that the Bulgarian by its main purpose - angle grinder. Therefore, using it as a homemade circular saw, you need to pay attention to the nuances.

1. The duration of continuous cutting should not exceed 15-20 minutes to avoid overheating of the engine.
2. Regular protection on the disk is not suitable for circular saws. The protective cover can be used from this circular or to make yourself.

It should be remembered that the speed of rotation of the sander can be more than 10,000 revolutions per minute - this is several times higher than the speed of woodworking machines. At this speed, the wood begins to smoke. In addition to an unpleasant smell, it is possible a fire.