How to turn a circular saw into a mitre saw

Safety Techniques

When preparing blanks of particleboard or thick plywood, it is inevitable to use the very circular saw, which will later become an integral part of the cutoff machine to be formed. All the potential danger of carrying out work on the machine with your own hands is associated with this tool.

It is desirable to work on a professional workbench, but if for some reason it is not possible, then you should carefully watch that the teeth of the saw blade did not accidentally touch any surface, and, of course, in no case did not hurt any part of your body. The cutting tool is a great hazard to the user.

How to make an electric mitre saw with your own hands

The mitre saw can be made in different ways. Consider options with an angle grinder and a manual circular saw.

From the angle grinder

Remove the disk and the additional handle from the angle grinder. Cut out the sheet for the base from a piece of wood or metal sheet. Metal is more suitable for an angle grinder. Weld a 3030 mm tube on both sides. Join a bed extension of the same width. Weld a 2525 mm tube onto it and insert it into the first tube.Sliding bedTake the legs for the washing machine. Bolt two nuts to them. One small, one extended. To adjust the height of the legs. Weld on legs at the corners of the frame.Feet with nutsWeld the gear case of the angle grinder make metal fasteners.Grinder mountBuild a pivot assembly from bicycle scrap metal.Swivel blockWeld it to the base plate with one end and to the angle grinder with the other end.The welded unitsPlace the spring on the swivel assembly, which pulls the pads together. And a stopper to keep the angle grinder from falling backwards.Spring and stopPlace the angle grinder with a pipe angle and an extra handle.Handle for facingIn the bed, make a slit for the disc.A slot for the disk in the base

Circular saw Hack || Make A Mini Chop saw Machine

For beauty you can paint the table and pivot assembly.

From a hand-held circular saw

Under the base take a sheet of chipboard 10 mm thick. Make the supports. Calculate the height depending on the circular saw blade.Screw on aluminum rails.Make a bed of the same chipboard in a semi-circle. Radius from the length of the base. The pivoting frame allows you to saw at an angle.Circular saw trimmerMount the base and bed on the table so that the bed pivots.

Circular saw workbench: drawing a blueprint, setting up the mitre saw

Make a stable table from a metal frame with a tabletop 40-50 mm thick.At the edge or in the middle measure out the area that will be occupied by the saw. On the free space, mount a platform as high as the base of the saw.Saw tableSaw table Make fasteners on the saw sectionSit the trimmer on the table and screw it down. On the platform, draw a fishing line that will continue the side stop of the saw.On this mowing line install and screw the square profile.Square sectionUse the square sectionSit the ruler on the square section.Ruler on profile

Buy a coping saw to suit your needs. Do not neglect to tune it. This process is very precise and delicate. Treat it responsibly. Then you get a workable and durable tool.


wood sanding

If you decipher the abbreviation angle grinder, it is clear that finishing is the main purpose of the “angle grinder”.

Cord brushes

Primarily used for primary (rough) sanding of wood, when you want to smooth out irregularities in the specimen.

End discs

The name says it all. Such nozzles are used to work the end parts of wooden workpieces (cuts). Especially effective if you have to deal with angular (beveled) cuts.

turn, circular, mitre

How to make a coping saw from a circular saw with your own hands. step by step instructions and nuances of manufacturing

Working body of the factory trimmer (motor, body, cutting disc) is similar to the usual manual circular saw. That’s why the manual saw can be easily adapted for trimming. The first thing you need is the hand saw itself. It remains to add a frame for fixing the electric saw and placing workpieces.

A variety of design options are possible, from the simplest platforms for straight sawing to complex devices: sawing at angles, with a broach for large-sized workpieces. That’s why different materials and parts can be used.

For the base 10-20 mm thick plywood is best suited. Its advantages over other materials:

  • Not brittle like particleboard, not bend like fiberboard.
  • It does not warp like wood.
  • Easy to machine and mount in any home workshop environment, unlike metal.
  • Under a roof, without moisture, serves long enough.
  • Fasteners to connect the frame parts (self-tapping screws, studs, bolts, nuts).
  • Wooden bars or metal corners for joints, hinge knot.
  • A pivot point (stud bolt, long bolt, washers, nuts).

Of the tools you will definitely need and may need:

  • Sawing tool (hacksaw, jigsaw, circular saw).
  • Drill or screwdriver (we also recommend reading how to make a circular saw from a drill).
  • Drills of required diameter.

Dimensions of blanks for the frame will depend on what design the master will choose and on the dimensions of the circular saw itself, which is the basis for crosscutting. For example, for trimming fence timber will need a frame length of the workpiece (1.2-2 m). For small parts fit a more compact bed.

The photo shows an example of the so-called monkey. a cutting circular saw with an abrasive metal disc, but it serves quite well as an example of what a small bed can be used in such a design.

Overview and comparison of factory models

Model RedVerg RD-MS210-1200 Hitachi C10FCE2 Makita LS1040 DeWALT DW 711
Power, W 1200 1950 1650 1300
Cutting height, mm 55 59 93 55
Cutting width, mm 120 144 95 140
Tilt angle, deg 45 52 52 50
Speed of rotation, rpm 4500 5000 4600 2750
Weight, kg 6,8 11,9 11 20
Dimensions, mm 430527445 460561628 530532476 590620490
Price, 6290 13676 15826 30432

/ Hitachi C10FCE2

/ Makita LS1040

/ DeWALT DW 711

We mark on the chipboard the different angles of the end piece and screw in the screws according to the marks.

the pivot is placed on the rotary axis of the car wheel (kingpin), it is supported by a bearing with a diameter of 0.15 m or more. Set rotating semicircle with kerf.

On the outer side of the bearing attach ears to hold on the base with M6 screws. Side lock with wing nut.

We carry out the pulling from non-working shock absorbers. They pour oil out of them, drill ventilation holes, which must be protected from small particles. In order to avoid jerking when starting the saw, it is necessary to install a soft start, which will slightly reduce the speed. Installing the working bed with a slit for the saw.

The last stage of the activity is the installation of the protective mechanism for the disc. And on the bottom we screw the guide rail.

  • It’s too noisy to operate;
  • to control cuts in wood use wood scraps, then the pull rod is set precisely, and then already sawed cleanly.

From a circular saw you can make a tool in a similar way.

Circular saw or a cutter with your own hands.

The logical continuation of the video Ruler for handheld circular saw or how to saw smoothly. Chisel for manual.

This design has two major drawbacks:

  • To adjust the accuracy of wood sawing with a broaching machine, you need to use scraps of wood. After that, the rod can be firmly fixed and work normally;
  • Such a makeshift machine with a broach while sawing pipes and working on metal makes a lot of noise, which can have a negative impact at least on the mood of your neighbors.

How to make a crosscut saw from a circular saw with my own hands?

Trimmer saw. a device that every builder should take “at arsenal”. However, it is no secret that high-quality professional tools, presented in the construction market, are quite expensive. That is why those who want to save money, as well as to show their skills, should try to make a crosscut saw with their own hands. The starting material for this will be a circular saw.

Varieties of crosscut saws

There are several types of mitre saws (popularly they are also called “crosscutters”). Let’s get acquainted with these varieties.

Pendulum saw

The base part of such a saw is the base frame. A table is attached to the bed, which must have a swivel mechanism with a ruler. This particular mechanism allows the sawing process to be carried out at a certain angle, adjusting it to the specific individual needs of each user. This angle can be changed by moving the table directly in relation to the base.

As for the saw itself, it is fixed in this device by means of a lever and also spring-loaded by means of a hinge. The pendulum, which gave its name to this type of mitre saw, allows the saw to be moved upwards or downwards.


When using a combination saw the cutting angle can be changed in 2 directions. The device as part of its composition, like the previous version, has an additional hinge. In order to change the angle of the cut, it is necessary to adjust it and take it to the side that is opposite to the place where the drive is mounted.

With a broach

This device is considered the most versatile, as the saw can be shifted not only around the axis, but also along the kerf in a straight line.

How to make a coping saw from a circular saw?

If you do not have the opportunity or desire to buy a ready-made crosscut saw, then such a device can be made by yourself. However, it is not possible to make it from scratch at all. The initial design should be a circular saw of the manual type and drawings.

So, in order to make a crosscut saw with your own hands at home, you need to make a box, which will serve as a base. As raw materials for the manufacture of the box, you can use wood chipboard (chipboard).

In the process of knocking down and assembling the box, experts recommend the use of confiermats, consisting of 1 element. they are essentially ordinary ties to connect the wooden parts. The final box for the base for trimming should have the shape of the letter “U”.

When making the box, it is important to ensure that it does not shift. It is often fixed to the work table with special clamps (a tool used for fixation). Next, on top of the shelf you need to screw the manufactured base under the saw.

Important: when attaching the base it is necessary to observe an angle of 90 degrees, otherwise you will not be able to align the sole of the saw.

On both sides by means of self-tapping screws it is necessary to fasten small pieces of chipboard. Thanks to this manipulation you will adjust the position of the tool sole. The next step in the transformation of the circular saw is its fixation. And you should do it with the same clamps, and you can also use wing clamps.

Then you should move on to install the so-called table. It should be fixed near the base of the table. However consider that in the process of this activity you reduce the depth of the cut by 1.5 centimeters, so try to put the profile as close as possible to the sawing element.

After carrying out the above manipulations, you can proceed to make a test cut. you should get a cutting line on the basis of the stop. If it turned out that way, then you have done everything right.

As you can see, it is quite possible to make a crosscutting tool from a circular hand saw. The main thing is to strictly follow the instructions and recommendations, as well as to apply a little strength and patience.

Advantages and disadvantages of a homemade device

Like any other device, the homemade mitre saw, derived from a manual circular saw, has its own characteristics and features. Some of it is positive in nature, while the other part is colored negatively. Either way, it is necessary to consider both features.

  • The first and most important advantage of a homemade mitre saw is a significant saving of financial resources. So, buying ready-made tools will cost you quite a lot (average), and the manufacture of tools by your own hands from a material point of view is available to almost everyone.
  • Another advantage of the home-built device is the fact that all the parameters of the saw (e.g. cutting depth, rotation speed, power, length and width of the base) are chosen individually. Thus, this device will prove to be more effective for personalized work than a purchased unit.
  • In addition, self-made saw, you will be familiar with all the components, and this, in turn, means that in the case of any failures and malfunctions, you can easily repair the tool.
  • Often, as the starting materials for the production of mitre saws with their own hands are used at home available means. It is worth noting that such materials are not always of high quality. That is why the service life and quality of the homemade device can be very short and low.
  • In order to make a machine, you need to have at least minimal technical knowledge and skills. The beginner can not cope with a task of this kind.
  • A home-built trimmer is not suitable for jobs that require a high-powered saw. If you need just such a machine, you will need professional parts, extensive knowledge and quite a lot of time to make it. So it is easier to buy a ready-made device.
  • Trimmer, which you will make yourself out of a circular saw, will not have the proper indicators of safety and can be traumatic in operation.

about how to make a crosscut saw from a circular saw, see the video below.

Trimming saw with my own hands

DIY, DIY, DIY! What is a home-made saw in fact, let’s try to understand it by the example of crosscut saw assembled by me.

This is not the most complicated machine, which I had the opportunity to make in the world, especially it was made for myself. Is it a self-made machine. I hope in the course of my reflection, the answer to this question will be clear closer to the end of the article.

The concept of this machine

I, probably, like many people have a hobby. I like to invent, design, build something with my own hands, but the approach to it is quite peculiar. In one of my articles I already told about building a CNC machine from what I had accumulated in the garage (of course, many had to buy more). I’ve already tried to make a lot of things with this machine, including bas-reliefs and woodcarving. Actually, they fell into my heart and I want to continue to work with wood using a cnc machine, but do not want to create a full carpentry (although this may come to this).

In order to make something on a CNC machine you need a blank and not always enough width or thickness of the board, then you have to glue the blank from several pieces, getting a shield. It is necessary to preliminarily work the blanks for the future board, to make all planes as even and perpendicular as possible. You may immediately have a question. “why not just buy this board?”. Because of the hardwood board is not found everywhere and even less of them are made qualitatively, and the price of these boards frankly say. so-so.

For these reasons and much more Of my own interest, I decided to make a machine tool, which could cut boards lengthwise and even if desired, and also did not take so much space.

I have to admit right away that the idea is not new and I got it from the Internet, but the execution is a little different.


When I wrote above about a rather peculiar approach, I meant the design of all my products (machines, devices and mechanisms) in CAD programs with all the resulting “pluses”.

Now directly about the design, which is based on the manual circular saw. I outlined it beforehand, received a simplified 3D model, then I built the movement mechanism and the base around the saw, and determined at the same time the components of the whole construction.

The width of the machine turned out by itself after outlining the saw, the length is also determined by the fact that the cylindrical guides are sold at least one meter. If we take 1 meter of the guide, the run length is quite small, because the guide must be sawed in half and each side must be unbored, as a result we take 2 meters.

All elements of the structure is connected by a metal sheet of thickness 10 mm the ends of the base and a 6 mm sliding carriage.


I started by buying a set, at a local store I bought four slides, supports for the guides, two meters of the cylindrical guide itself with a diameter of 25mm.

In total I need to make three pieces, plus counterbore the guides to the same size and make holes in them with threads.

Three parts of the sheet steel ordered on a laser cutter, for this I sent a file in vector format to technologists for cutting on the machine.

Guides with the allowance for machining sawed and gave to the turner.

After all the parts were ready and laying in the workshop, all I had to do was a little bit of locksmith work in the form of cutting a few threads in the sheet-metal elements.

I took the sheet metal pieces for sandblasting and powder coating, and at the same time bought some fasteners, the name and quantity of which was determined in the course of the modeling of the machine.

In a day I took the parts out of the painting shop and assembled the machine like a construction set, quite a pleasant thing to do.

As a roughing table I bought a sheet of plywood 15 mm thick.

I will not give specific numbers, but for comparison I will say that the production of the machine, cost about the price of a budget cross-cutting saw from the store.

Reflections on homemade

My thoughts on this subject are many, and they may seem a bit confusing, but still.

You can take an alternative route and make this machine tool solely with the help of an angle grinder and drill, without resorting to the design and modeling. And to spend a lot of time sawing out parts with an angle grinder from a rusty sheet, and in the evening, taking a shower, blowing out black snot, overcoming muscular pain and fatigue.

It is of course possible to save some money on the purchase, trying to find something suitable for this in a metal shop. But how much time can it take, and whether you can find?

Another option. Make everything out of plywood, as did the author of the video, from which I took the idea of the machine. It seemed to have enough stiffness and overall it worked, and it was cheaper, but I never felt such a machine in my hands.

Everyone chooses the variant, which is closer to him.

I partly did it myself: I designed it, assembled it. The other part of the work was done for me by people. It turns out that I didn’t do everything myself. so I’m not a do-it-yourselfer?

What characterizes a self-made machine? Self-made and / or use only hand tools in the manufacture? Or maybe something else?

Some time has passed and the machine described above has been finished. Some Комментарии и мнения владельцев were taken into account, but not all. It does not deserve a separate article, but this one will be more complete.

Another small retrofit that is probably worth mentioning in this article.

I have added a laser line pointer whose working principle is based on the refraction of a laser beam in a cylindrical glass.