How to make a circular saw from a circular saw

Let’s build a circular saw from a manual circular saw

I needed, recently, circular saw. And it, quite by chance, was not at hand. To pay more than ten dollars (the minimum for the bare Chinese) does not allow thrifty amphibian, but the need for it does not become less. There are, of course, jigsaws, jigsaws, but that’s not the solution, because we need some kind of performance and accuracy. I had to harness the ingenuity and industriousness.So, we have a manual circular saw, a decent piece of 15 plywood, a piece of angle, various screws and bolts, a drill, and a manual (not wild) milling machine. Another three or four unoccupied hours. Which we are going to do with handjobs ( fudge, my Android knows the word “handjobs”). From where would?).There’s more text than pictures.We have a weakly contoured piece of plywood, which allows us to obtain a rectangle of 1000x700mm and a thickness of 15mm. And, first of all, we get it using the jigsaw.Then we cut a rectangular hole with the jigsaw to fit the circular saw into the plywood. And along the contour, with a router, we choose a recess that will let the table of the circular saw to be flush with the plane of the “fanfair”. Bleeding tears, we are drilling with 5m drill bit some holes in the table of the circular (and in the “fanfare”). which will allow to fix the circular on the sheet. Do not forget to countersink the hole to put the head of screw in it completely (don’t worry, most likely the table of the circular saw is made of weak and very soft lumineum). Yes, this won’t hurt the circular (uh, I hope).So we have a circular saw fixed in a piece of plywood.

Thus we have a circular saw fixed in a piece of plywood.But we still need a stop, so that we could saw properly, not as we have to. Well, we take a piece of structural iron (or even a piece of wood) you have handy and make a stop with it.In the fanfare sheet make cuts with a drill and jigsaw.

The machine you’re looking for is ready?Yeah! Screw the trigger of the circular saw with a wire and you can saw!Well, yeah! It’s kind of creepy. Because the finger slicer can only be switched off by pulling the circular saw’s plug out of the socket.Not good! Losing consciousness from the shock of the fingers flying aside, it is not quite comfortable to remember the socket. Otherwise I’m lying on the floor, pouring my fluids all over it, and the circular saw keeps on spinning merrily. The switch should be easy and quick to reach!Strange as it may seem, the switch, the socket and a meter of two-core wire are at hand.

This is certainly not ideal in terms of functionality, and safety (what the hell), but, in a pinch, will do.Yeah, I took a picture with an angle grinder.And also, please be careful with your fingers! Circular saw. the most cheerful tool in this respect (if you don’t count the angle grinder with a circular saw blade. But this is for heroes, strong in spirit!)))

How to make a circular saw from a manual circular saw with your own hands

Making and assembling the table for the circular saw is divided into certain steps:

  • First we make the tabletop. Thick plywood is perfect for this purpose. It is from it we saw out a jigsaw piece of the required size.

Please note: the larger the work surface, the more comfortable the machine is to work on.

How to make a stationary circular saw from a cut-off saw with your own hands

Dear visitors site samodelkin a friend today we with you consider the detailed step by step instructions on how to re-equip the circular saw in a stationary circular with your own hands. Every craftsman knows how good it is to have your own stationary circular saw, with which you can cut boards of different widths, cut grooves and it’s all quite convenient. But not everyone who likes to engage in carpentry can afford to purchase a factory machine, and if you work from time to time, then it does not make sense to spend money to buy. But it is quite possible to make a circular saw from a cut-off saw and several sheets of plywood or particle board. Saves energy, time and family budget)

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To assemble a home-made stationary circular saw you will need a cut-off circular saw, a few self-tapping screws for wood with a washer, thick plywood or chipboard, an electric extender and some more self-tapping screws for assembling the table itself.

  • electric circular saw
  • self-tapping screws with press washers
  • Plywood or chipboard
  • electric arbor lifter
  • wooden nail
  • 2 pcs clamping base

Step-by-step instructions for making a stationary circular saw with your own hands. First, we cut the board for the machine table top, then marked it for sawing. In the bottom of the cut-off saw is drilled at least 4 holes to fix it in the bottom of the table. Marking the place for the kerf. Self-tapping screws with a washer to fasten the saw to the table top. Screwdriver screwdriver screws, by the way their length should be shorter than the thickness of the board to which they will be screwed. Use a circular saw to make a cut along the planned line. Position it and check the height? Then the table itself is assembled, the dimensions are chosen individually to the extent of your physiological peculiarities. We connect to the electric extender with a switch (red button) the guide can be made from a wooden rail, fixing it at the edges with screw clamps. Test felling. All good) Here is how simple it is to make your own stationary circular saw. Thank you for your attention!

Types of crosscut saws

There are several types of mitre saws (they are also called “crosscutters”). Let’s look at these models.


The basic part of such saw is the base. On the base we mount the table, 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. And this angle can be changed by moving the table directly in relation to the base.

As for the saw itself, it is mounted in this unit by a lever and is spring-loaded by means of a joint. The pendulum, which gave its name to this type of mitre saw, allows the saw to be moved up or down.

Combination saw

With the combined type saw it is possible to change the angle of cut in 2 directions. The device, like the previous version, has an additional swivel joint. In order to change the angle of cut, it must be adjusted and moved to the side that is opposite to the place where the actuator is installed.

With broach

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

The most suitable tools for making

In addition to the above parameters, an important factor when choosing a manual circular saw is the quality of its performance. The Bosch PKS 55 and the Hammer CRP 1300 D are currently the most suitable hand held circular saws for retrofitting.

Bosch PKS 55

When developing the model, the designers of the Bosch Group made Accent for sawing with an emphasis on a rigid surface. That is why the base plate, made of structural steel, has additional stiffening ribs. Optimally selected power and cutting depths allow using a circular saw for cutting hard wood as well as thin-walled aluminum and non-ferrous metals.

The main technical characteristics of the Bosch PKS 55 are:

  • It is made by Bosch;
  • model. PKS 55;
  • Class. semi-professional;
  • power. 1.2 kW;
  • Diameter of the saw blade. 160 mm;
  • cutting depth of 55 mm;
  • disc thickness. 1.8 mm;
  • weight. 3,9 kg;
  • price. 7999

Hammer CRP 1300 D

Extensive use of structural and alloy steel in the manufacture of the Hammer CRP 1300 D allowed to achieve the best performance when the tool is fixed. Powerful enough for cutting hardwood boards, planks and thin-walled metal. High blade speed for a clean cut.

Its main technical features include:

  • manufacturer. Hammer;
  • Model. CRP 1300 D;
  • class. semi-professional;
  • power. 1.3 kW;
  • saw blade diameter. 160 mm;
  • cutting depth. 55 mm;
  • disc thickness is 1,8 mm;
  • weight. 4,4 kg;
  • price. 4599

Homemade attachments

Circular saw is not so difficult to make, problems may arise when fitting the nodes. Choosing the right components so that they work flawlessly is an important task. The shaft should have self-adjusting bearings if the machine is used daily. The bearings themselves are best with two rows of balls, which will be adjusted with a jam nut.

The working surface must have a “grid” marking. Without this coordinate system, accurate woodworking is quite difficult. The safety guard must not be neglected. it reliably protects the device from mechanical damage during operation. The circular saw works in different modes when working with different materials, so it is desirable to have a device that controls such a process. Several grooves should be made on the shaft, so that it is possible to rearrange the pulleys, thus changing the speed.

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A parallel stop is a necessary fixture for working with oversized workpieces. They can be made of plywood, woodblock or particle board. the limit stop is usually less than 25 mm. Fasten the stop with self-tapping screws or bolts.

When you have to saw a bar or make several cuts from different directions, you need a stop that has a “U” configuration. At its base is a 30 mm thick board. 12 mm thick sidewalls are screwed to the base. Thus, the stop is installed on the bar, the size of which from the point of cut corresponds to the size to the cutting disc. On both sides it is pressed to the bar by clamps. If the bar is too massive, it is repositioned and another cut is made.

There is also a lipstick, which is in demand. To make it, you need a lot of time and a good skilled craftsman. Be sure to make a diagram-drawing before starting work. This stop is made of plywood (20 mm), and the stop strip is also made of this material. Fabrication phases:

  • cut longitudinal slots for the keys;
  • The dowels are mounted on the stop bar;
  • Between the grooves made, another groove is cut in order to fix the thrust bar;
  • Another hole is made in the base, its size corresponds to the circular saw’s cutter;

Mounted side-restraints, and it is obligatory to have locks to fix it securely. To put a stop on the workpiece, the bar moves in the slots and is fixed through the slot with screw clamps. It is best to immediately fix a ruler or tape measure on the base. it makes the work much easier. Pusher is convenient for working with small workpieces. it allows you to fix the part from both sides, which ensures accuracy in the work. It is also important to make:

If you put a three-phase engine on the machine (380 volts), then you will definitely need capacitors that can withstand a minimum voltage of 620 volts. These devices can be of the paper type.

Capacitors are calculated according to this scheme: for 1000 watts there are 100 μF for a working type capacitor. The capacitance of the starting capacitor should be ordered twice as large. It should be remembered that the SB starter unit is a device that automatically returns to its original position. This is very convenient, since literally in a few seconds after the start it is possible to begin the work process.

Assembly algorithm of homemade circular saw

Assembling the woodworking machine according to the above drawing is performed in this sequence:

  • make a rectangular frame from the corners;
  • four legs are welded to it at the corners of the desired height;
  • at a height of about 200 mm from their lower edge make strapping from the corners;
  • Mount the shaft on the upper frame;
  • fix on one side of it the driven pulley, and on the other. the disk;
  • make and attach to the bed a table with a lifting mechanism;
  • On the bottom frame, a platform of angles or sheet metal for the electric motor is made;
  • On the shaft of the motor fix the driving pulley;
  • place the belt over the pulleys;
  • On the side panel of the machine mount the on/off buttons and the electrical panel;
  • Use wires with a suitable cross section to connect the elements of the electrical circuit of the equipment (motor, buttons, protection);
  • supply power to the machine from the mains.
make, circular

The final step is to check the performance of the assembled equipment. First, it is worth checking the free rotation of all moving parts: to do this, simply twist the drive pulley by hand. Then the machine can be started up in test mode. If any strong vibrations are detected, check that the bolt connections and the disk clamping are secure.

It is possible to make a circular saw with a table consisting of two halves or one piece. In the latter case, it will be necessary to cut a rectangular hole for the disk. The construction of the machine with the table in two halves is shown in the video below. This video also demonstrates the lifting mechanism for these parts.

Important! To prevent the possibility of the saw jamming due to the connection of fragments of the sawn workpiece, it is recommended to install a riving knife. It should be placed about 3 mm behind the circular saw blade.

Circular saw table

When choosing a circular saw you should be guided by these characteristics:

  • Saw power. If the scope of work is quite large, it is advisable to take the tool with a power of at least 1.2 kW.
  • cutting depth. The thickness of the material to be processed depends on this parameter. At manual saws it is 40-70 mm. But when it is placed in the table, there will be a reduction of about 10 mm.
  • Button placement. The saw table must be designed so that all the controls are easily and safely accessible, otherwise you have to modify the controls yourself.
  • Speed of rotation. For cutting wood, a high rotation speed is a priority. This affects the quality of the cut. For plastic, for example, it is not very good. The high speed of the wheel heats the plastic. You need to choose the medium performance. 3 to 4 thousand. revolutions per minute will be enough.
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Wood mitre saw

Trim 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, is quite expensive. That is why those who want to save money, as well as show their skills, should try to make a tsortsovochnaya saw their own hands. The starting material for this will be a circular saw.

Circular saws varieties

There are several types of mitre saws (also popularly called “trimmers”). Let’s look at these types.

Pendulum saw

The basic part of such a saw is the bed. On the bed is attached to the table, which must have a rotary mechanism equipped with a ruler. This particular mechanism makes it possible to carry out the cutting process at a specific angle, adjusting it to the specific individual needs of each user. And this angle can be changed by moving the working table directly in relation to the bed.


When using a combination saw, the cutting angle can be changed in 2 directions. Similar to the previous version, the device has an additional joint as a part of its construction. In order to change the angle of cut, it must be adjusted and moved to the side that is opposite to where the drive is mounted.

With broach

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

How to make a crosscut from a circular saw?

So, in order to make a face saw with your own hands at home, you need to make a box that will act as a base. As a raw material for making a box you can use Woodchip board (chipboard).

Make This Circular Saw Track Saw GuideWith a Circular Saw!

In the process of knocking down and assembling the box, experts recommend the use of 1-element confiermats. they are essentially ordinary ties to connect wooden parts. The final box for the base for trimming must be shaped like a “U”.

On both sides by means of self-tapping screws, it is necessary to fasten small pieces of chipboard. With this manipulation you can adjust the position of the sole of the tool. The next step in the conversion of the circular saw is its locking. And you should do it using all 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 close to the base of the table. Please note, however, that while doing this you reduce the depth of cut by 1.5 centimeters, so try to put the profile as close as possible to the sawing element.

After the above described manipulations it is possible to proceed to the test cut. you should get a line of the cut on the base of the stop. If it turns out so, then you have done everything correctly.

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

Advantages and disadvantages of a homemade device

The first and most important advantage of the home-made crosscut saw is a significant saving of financial resources. So, buying a ready-made tool will cost you quite a lot (average ), and making the tool with your own hands from the material point of view is available to almost everyone.

Often, as the starting materials for the manufacture of a crosscut saw with their own hands, the available household means are used. It is worth noting that not always such materials are of high quality. That’s why the service life and quality of a homemade device can be very short and low.

on how to make a coping saw from a circular saw, see the video below.

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