The design of the miter saw is similar to a circular saw mounted above the workbench. Its main advantages: compactness and light weight. Thanks to this, saws are used not only in workshops, but also on construction sites. Unfortunately, homemade tools are quite bulky and heavy. They are convenient to operate in stationary mode.
A miter saw is designed for the sole purpose of cutting the ends of lumber at various angles. Due to the fact that the workpiece is stationary on the table during cutting, the cut is neat and clean. Craftsmen who deal with wood processing prefer this particular tool. Moreover, self-made saws have been successfully used for years.
Trimming from a grinder
Technical characteristics of a cross-cutting machine with a broach, assembled by yourself:
- disk revolutions - 4500;
- cutting length - 350 mm (much higher than that of a middle-class factory tool).
The tool can be removed from the table and the grinder can be used for its normal purpose.
Manufacturing details:
- The turning device of the tool is installed on the turning axis of the car wheel (pin), it is held by a 150 mm ball bearing (if you can find more, it will do).
- We weld lugs onto the outside of the bearing to secure it to the base. It is fixed using M6 screws.
- To protect against chips, the clip is covered with a box.
- We make the broach from shock absorbers from a truck (broken ones will do). Oil is poured out of them, holes are drilled for ventilation, which should be covered with a mesh to remove dust and chips.
- To prevent a jerk from being felt when starting work, the saw is supplemented with a soft start module, which slightly reduces the speed.
- The last stage of work is the manufacture of protection for the disk.
Design disadvantages:
- very noisy;
- To adjust the accuracy of wood cuts, scraps of timber are used, after which the rod is fixed firmly and you can work cleanly.
Trimming from various scrap metals
This is quite a heavy crosscut on a stationary metal table. It will take some effort to control it. But in the end, the saw mechanism moves smoothly, without jerking, and trimming with your own hands is easy.
Specifications:
- electric motor power - 2.2 kW;
- disk revolutions - 2800;
- cutting depth 80 mm.
Materials and tools required for assembly:
- 900 W electric motor;
- a metal sheet;
- metal corner;
- channel;
- hinge group;
- powerful spring;
- Bulgarian;
- welding machine;
- file.
The bed is made of adjustable supports, metal corner and racks from old bed. Working surface- a metal sheet as the surface of a table, in which we cut a hole, and process the edges with our own hands with a file.
- The pendulum stand for the saw is welded from a channel mounted on a sheet of metal; its height is about 80 cm.
- The stand for the electric motor is made in the form of a movable metal plate mounted on hinges. When installing an electric motor, a spring is used as a stabilizer. Then you can do without a pendulum and belts.
- The tension belts are adjusted with a conventional hinged bolt, and the pendulum for the mechanism is also made of metal.
- As an operating tool, a disk with a diameter of 420 mm is installed on the trimmer.
A miter saw is quite dangerous equipment; when assembling it with your own hands, you need to take care of protective boxes and covers. After all, errors during work homemade equipment significantly more than the factory one.
Advantages and disadvantages of homemade trims
Advantages:
- Making your own tools saves money. For example, about 500 rubles were spent on modifying the grinder. Price homemade table and saw mechanism is available to most craftsmen;
- main parameters: cutting depth, rotation speed, disk diameter, engine power, table dimensions, selected to suit your own needs;
- Having assembled the tool with your own hands, the master can easily find the cause of the problem and fix it.
Flaws:
- From quality starting materials the service life of the tool depends, and homemade products are usually assembled from all sorts of rubbish;
- trimmings homemade are rarely powerful enough. After all, for quality work equipment requires careful selection of parts;
- sometimes the money saved on purchasing a factory tool is spent on repairing and modifying a homemade one;
- craftsmen often skimp on their safety by not equipping the table and saw with protective devices;
- Factory saws are equipped with a graduated scale that accurately indicates the angle of cutting the wood. It is difficult to build such a mechanism on a home device.
A few more convenient and interesting homemade products, among which are excellent stationary, mobile and made in a couple of minutes from several plywood and screws:
Miter saw - the same circular saw cut-off saw based on a regular circular. It allows you to cut with great precision required angle almost all materials - from plastic to metal. Such a tool costs from the manufacturer, that is, finished form, is not cheap, and assembling it yourself is not so difficult. Therefore, if you have an urgent need for a miter saw, and your hands grow out of the right place, further information will be very helpful.
Interesting! By assembling the tool with your own hands, any craftsman can easily find the cause of the breakdown and eliminate it, which will additionally save money.
A miter saw consists of several essential elements
- the cutting disc itself;
- a handle to hold and guide the tool;
- engine;
- footrest with start button.
Important! Regardless of the manufacturer, such a tool is always equipped with a durable disk, which makes it so versatile in use. If we set out to assemble the cross-cutting machine ourselves, then we buy the disk ourselves, and therefore do not forget that it is better not to save money in this matter, but to choose the most durable disk and precisely for such needs. Native disk from circular saw quite suitable.
Let's get to the heart of the matter: you have a circular saw and you are assembling a homemade miter saw. The first three points are already present in the circular saw itself, and the fourth may not be needed if you skillfully assemble the guide bar for the saw.
How to make a miter saw
For this you will need
- plywood sheet;
- aluminum corners;
- self-tapping screws
Let's start assembling
- We cut out a rectangular sheet of plywood and make a long cut on it, along which your trimmer will ride;
- We screw two guides on top, for example, from an aluminum angle, to the width of the working plane of the circular itself;
- From below to the plywood sheet you need to screw two stands with a height equal to the cutting depth of your saw (5.3 cm).
As a result, we get a guide along which the circular will move. Depending on how we fix it on the table using this simple mechanism, we can make precise cuts at any angle. The simplest version of the design is ready.
But what if we want our miter saw to be more functional in operation and look like a factory miter saw? In this case, you will have to show more ingenuity.
- First, you need to make a bracket and a stand on which the circular will be attached. Chipboard (27 mm) is an excellent raw material for such a mechanism. Using self-tapping screws and aluminum corners, you will get a very decent upper part of the trim. And the springs attached to the top can make working on such a saw more convenient;
- Secondly, you need to fix the tripod itself on a movable rotating stand, make pendulum saw, thanks to which we will eventually be able to change the facing angle.
Carefully! Not only the quality of work and functionality of the trim, but also your personal safety will depend on what material you choose for the stand and tripod, and how securely you attach them to the stand. No wonder they say that « if the carpenter is experienced, then he is definitely without a finger » . Secure the circular as securely as possible! Safety is paramount!
As for the trim itself, everything is said about the assembly. However, if we decide to make a saw that looks like a factory saw, then it will be difficult to do without a table.
How to make a miter saw table with your own hands
A good material for a table would be a 19mm MDF board.
- Measure the depth and width of the entire structure (miter saw);
- Now measure the width and depth of the workbench on which the table and the trim itself will stand;
- As a result, the lower part of the table made of MDF board should be equal to the width and depth of the workbench, and the upper part should consist of two parts and in total be shorter in length by the width of the miter saw;
- The height of the table should be equal to the depth of the cut;
- Inside the table (between the top and bottom plates) at a distance of 50 cm, it is important to make rigid partitions from the same MDF board. This is necessary so that when pressed the table does not sag.
That's all for sure now. The miter saw from a regular circular saw is ready.
Interesting! A miter saw is a rather dangerous piece of equipment in itself, and if you also assembled it... with my own hands, the danger of such a mechanism can increase significantly! On the other hand, by assembling all the parts yourself and taking care of all kinds of protective boxes and casings, you can reduce the risk to a minimum. In this case, the rule applies: « Your safety – only in your hands » .
- Build process
- Important points
The cross-cutting tool is lightweight and compact. Effective as stationary machine. Fixed fixation of the workpiece allows you to perform high-quality cuts. Some examples of miter saws include devices for optimizing angle cuts, a speed controller that allows you to select a mode depending on the type of material, required quality processing. You can make a trimming unit yourself.
Most often, the saw is assembled from a grinder.
For good work:
- The original disk tool must perform at least 4500 rpm.
- The length of the cut is at least 350 mm.
If necessary, the grinder installed on the miter saw table can be dismantled and used for its intended purpose.
Build process
First, a table is made on which the cutting unit will be installed. The frame is constructed from a metal corner using the welding method. The top of the stand is covered with a thick sheet of metal with a longitudinal hole. The edges of the bed are processed with a file.
A grinder saw is mounted on an axle. This allows you to trim workpieces at an angle. The rotating mechanism is fixed by installing it on a bearing with a diameter of 150 mm. The structure is secured with a mechanism connected to the axle. The axle is lubricated from time to time to prevent squeaking and excessive friction.
To trim workpieces at a certain angle at the time of assembly, the saw is equipped with ears welded with outside machine at a short distance from each other. If this is not done, there will be play and the cutting accuracy will suffer.
During operation, it is necessary to ensure that sawdust does not get inside the bearing: this can lead to rapid wear of the mechanism and the rotation of the disk will be difficult. For additional protection you need to use lubricant.
The most effective for processing wood is a trimming machine with a broach and shock absorber. It is better to choose samples installed on trucks: they are more resistant to aggressive mechanical stress and durable. The part is freed from oil, supplied technological holes who will serve ventilation ducts. To protect against sawdust and wood dust, the holes are covered with a mesh with a fine cross-section of cells.
Another useful miter saw option is the soft start module. Thanks to it, the machine does not make sudden jerks when starting up. The principle of operation of the part is to reduce the speed at the start. As a result, the trimming cutting disc picks up speed gradually. It is difficult to assemble a stabilization module on your own. It is recommended to remove the part from another device or buy it.
On final stage make a shield to protect the miter saw from getting into work area cutter of third-party objects.
If there is a regular Circular Saw, you can make a movable carriage. It is easy to install, assembled from a plywood sheet, guide bars and fasteners: bolts, screws.
Important points
The machine makes a lot of noise when operating.
In order for the tool to accurately perform the intended cut when processing the ends of the workpiece, you need to try to position the grinder as accurately as possible relative to wooden parts. Adjust placement cutting element can be done using bars, and the rod must be secured with a bolt.
The cross-cutting machine can be installed in a garage, workshop, basement, and other places. The main thing that working structure was firmly connected to the base.
You need to choose carefully saw blade. It must correspond to the specifics of the work and the characteristics of the material.
For cross cutting at various angles wooden blanks, when precise joining of several elements is necessary, it is used special tool. A do-it-yourself miter saw is made on the basis of existing equipment - from manual circular saw, Bulgarians. And when installing disks of a certain type, homemade design can be used for lung cutting metal-plastic profiles, pipes, which will expand the scope of its application.
Making a tool from a hand-held circular saw
The design is simple and can be made at home. Frame sawing machine assembled from wood or metal. A base is constructed from sheets of plywood (chipboard) on which to install vertical stand, having previously cut holes in it for attaching the circular. The pendulum-type mechanism is made from a board and is fixed to the support using a long bolt.
Having prepared a corner or metal rod, it is screwed on top of the pendulum, trying to make the end protrude. Take the spring. One side of it is secured to the back of the corner, and the other to the vertical post. The tension is selected experimentally, but it should be sufficient to freely hold the hand-held circular saw suspended.
Having disconnected the handle from the tool, it is secured to the pendulum in the prepared hole. The cables are laid in the grooves provided for this purpose and the voltage is connected. A small slot is made in the tabletop and fixed to it at right angles. side supports. If they are made rotary, then workpieces can be cut at a given angle. The circular saw has been assembled, all that remains is to test it in action. Using available drawings, it is easy to make any, even more complex, tool .
A homemade workbench is the basis for convenient work
For ease of work, you should make a cross-cutting machine. Preferably mobile design, if you have to move with him to another place or directly to the construction site. Therefore, the frame is made collapsible, for which the tabletop is fastened to the legs using self-tapping screws.
To make a workbench, you must perform the following operations:
- Prepare the top frame. It is collected from wooden beam dimensions 40x40. Legs made of a similar material are screwed on with self-tapping screws and spacers are installed for greater stability. Or the joints are reinforced with metal corners.
- The tabletop is made from boards. Its width should be 10 cm greater than its length miter saw, and the length is equal to the width multiplied by 3.
- Taking sheets of plywood (chipboard, MDF), prepare and secure improvised tables, trying to position their surface on the same level with the rotating mechanism.
- Install equipment for cutting ends.
Since it is difficult to make a high-quality rotating device at home, they take it ready-made.
This kind of wood trimming will be in demand in your workshop or when carrying out various construction work, in which woodworking is indispensable.
If you need to make a machine with broaching, then for this you take the shock absorbers of the front struts of the car. It is preferable to a passenger car, because they are too massive for a truck. You can purchase them at any car dismantling point. Before installing shock absorbers, in order to facilitate the movement of the rod, the oil is drained and “air” holes are made in the body.
Homemade saw from an angle grinder
A miter saw made from a grinder is one of the most common models. The advantage of this design is that the angle grinder can be removed and, after changing the disk, used for its intended purpose - for cutting metal. The most simple circuit allows you to cut boards at an angle of 90 degrees.
The manufacturing procedure is as follows:
- First, make a support frame from metal sheet, framed by a corner. A vertical stand made of a metal profile is welded to it (screwed with bolts).
- Brackets for attaching an angle grinder are fixed to a section of pipe, which is covered with a casing made from any available material. The main condition is reliable fixation of the sander.
- The pipe is attached to the rack using a conventional bolted connection. To hold it in a vertical position, limiters or a self-clamping device are installed.
- Having secured the grinder, a cut is made in the frame for the entire diameter of the disk so that the cut of the workpiece is complete.
- The side stop for changing the position of the workpieces is made rotary. Marking in degrees will make it easier to select the desired angle.
Every home craftsman can assemble his own miter saw from a circular saw or grinder. At the same time, in the process of implementing the proposed ideas, great prospects for creativity to improve an existing design.
To efficiently cut a small piece of wood, a regular circular saw will do. But when this operation is repeated many times, very precise processing of the ends of workpieces of identical dimensions is required. For this purpose, it is best to use a wood cross-cutting machine.
This is a more complex device than a simple circular saw. It allows you to trim wooden surfaces saws in which two main characteristics can be changed: the number of teeth and the diameter of the processing disk.
Main components of a cross-cutting machine
By using cross-cutting machine You can saw workpieces from various materials– plastic, metal, wood. The maximum weight of the unit is about 30 kg or less depending on the functions it performs. Cross-cutting machines are most widely used in woodworking.
Machines for trimming wooden blanks consist of several main units.
Firstly, this is a table. For correct operation of the machine, the table must be installed on a stable support frame. To perform complex operations that differ from each other in the nature of the impact on the wood, rotating mechanisms and various positioners.
A saw unit is required. It consists of a shaft and a cutting disk attached to it using a drive. Several saw units can be installed on the frame for simultaneous processing of different places on the workpiece. The unit consists of an electric motor and a torque transmission unit to the shaft.
The mechanism for moving the saw unit along the structure can be simple (assembled from shock-absorbing springs and brackets) or complex (hydraulic or pneumatic automatic). Its functionality expands significantly if you add a mechanism that allows you to extend cutting disc at an angle to the workpiece.
In addition to the main components, the cross-cutting machine is equipped with auxiliary devices, devices, programming units, simple or complex systems to remove chips.
Characteristics and types of equipment
Woodworking cross-cutting machines have a range of general characteristics. With their help, it is easy to select the unit that the best way suitable for the specific process. These general characteristics include:
- electric motor power parameters;
- number of shaft revolutions and the possibility of adjustment;
- maximum and minimum diameter cutting disc;
- dimensions and indicators of rotation angles of saw units;
- distance between the table and the bottom edge of the cutting teeth.
To connect the chip collection system, it is necessary that the inlet pipe and the vacuum cleaner tube have the same diameter. This will eliminate the need to attach adapters.
To prevent the workpiece from moving during processing, it can be additionally secured on the table with special clamps. The configuration and dimensions of the clamps are determined depending on the parameters of the work table of the cross-cutting machine and the maximum height of the workpiece being processed.
Based on the nature of the movement of the saw units, a machine for trimming boards can belong to one of the types listed below.
In a rectilinear unit, a rigid cantilever beam is used to move the block. The height of the console may vary depending on the size of the wood being processed.
In a pendulum unit (PSU), the disk assembly is located on special suspensions so that the finished processed beam has a segmented arc-shaped protrusion. This is achieved by raising and lowering the cutter during processing of the workpiece.
In a balancing cross-cutting machine, the saw unit is mounted under the table. The knife is raised 10-12 times per minute using a pedal mechanism.
Finally, there is a stationary cross-cutting machine. In it, the knife is firmly attached to a selected place on the table surface. The workpiece is processed without changing its position on the table and position cutting tool in relation to lumber.
Self-production from a circular saw
To make a wood cross-cutting machine with your own hands, you need to carefully read the recommendations of those who have already worked on a self-assembled unit. Assembly diagram homemade machine quite simple and understandable.
To assemble the frame you will need a metal corner and steel sheet thickness of at least 5 mm. The electric motor is mounted on the base using bolts and a stabilizing spring. This is done to make the movement of the saw units smoother.
To add strength to the structure, control supports are included in its composition. The pendulum stand is mounted from a channel, which must be rested against the base of a wood cross-cutting machine.
Note! By selecting each unit not only according to the need for the design, but also according to the price/quality ratio, you can significantly save on the total cost of a homemade cross-cutting machine.
The main advantage of such a unit is the minimum time spent troubleshooting. Finding them and eliminating them in a do-it-yourself machine is much easier than in a factory-assembled machine.
The approximate maintenance-free service life of homemade equipment is up to three years.
In the future, it may be necessary to replace components that have ceased to correctly perform their functions. The disadvantages of homemade trimmers include low productivity. It is quite difficult to establish continuous production on such a machine.
An example is the factory-made cross-cutting machine Stromab RS-40. This machine can process workpieces measuring up to 400 x 65 mm. Cutting can be done at angles up to 45 degrees.
One of the main disadvantages of homemade cross-cutting machines is the inability to provide appropriate safety measures. Almost always, homemade products do not have protective covers on the saw units and in the area of movable joints. This may lead to accidents. The presence of small defects on metal parts also negatively affects work safety.
Professional trimmers
A completely different level functionality, performance and safety in cross-cutting machines designed for professionals. Industrially manufactured units have a lightweight and very stable design.
All cutting surfaces are securely closed protective covers. All saw units of the machines are equipped with dust extraction adapters.
The main qualities of professional miter saws– high reliability and accuracy when sawing logs and semi-finished wood products.
An important advantage of professional miter saws is the ability to process workpieces made of various materials - plastic, wood, metal. In order to adapt the machine to certain material, you only need to change the cutting disc.
Prices Russian market for professional trimming range from 15 to 30 thousand rubles. If it is necessary to establish small-scale production of wooden parts in the manufacture of furniture, such machines are simply irreplaceable. The most popular and relatively inexpensive professional miter saws include those presented in the table.