Makeshift circular saw from a circular saw with his own hands ?
Circular saws are well established in the arsenal of craftsmen. Mainly due to the accuracy of the cut (it is much higher than that of electric jigsaws and chain saws) and versatility (it can perform both longitudinal and transverse cuts of wood, as well as cut slate, plexiglass and plastic). If you have an electric motor in your household, it’s time to think about this tool. In our article we will tell you how to make a circular saw with your own hands from improvised means.
Materials for making
To make the saw, you will need:
- powerful 220 V electric motor with pulley and belt;
- Circular saw blade;
- rod from automobile shock absorber;
- two 6004 bearings;
- two 5/8-inch retaining rings;
- metal pipes;
- pulley ø90 mm;
- angle grinder;
- welding machine;
- hammer;
- tape measure;
- wooden bar;
- vise;
- Nuts, washers, self-tapping screws;
- spray can.
Advantages of homemade equipment
Homemade circular saws are very popular due to the simplicity of their manufacture, durability and reliability. Today, many dachnikov use homemade units, rather than buy expensive equipment in specialized stores.
The main advantages of such equipment include the following:
- Versatility of the tool.
- The ease of making it.
- Significant savings are possible.
- Reliability and durability of the equipment.
The available on the internet and in thematic printed publications designs of stationary and mobile circular saws allow making a technique for processing both thin and thick blanks. The simplest variants that can perfectly cope with the processing of paneling, thin lamellas and plywood can be chosen.
Characteristics and power
It is on the correct choice of parameters, including RPM and drive power, that the functionality of the equipment will depend. Power rating is affected by maximum allowable diameter of toothed saw. It is believed that to process lumber with a thickness of about 10 millimeters you need an electric motor of 1 kW. Taking into account thickness of the sawn wood and sawn wood to be processed one should choose the power of the electric motor.
It is better to use the V-belt drive in a self-made circular saw. This ensures the necessary safety when using the machine. V-belt drive will slip on the pulleys when foreign objects get under the saw, which eliminates injury and jamming of the working disc.
Step-by-step assembly
Make your own hands a stationary circular saw can be made from the angle grinder and hand torch without making any changes in the design of working tools. The base is made of lumber, which greatly simplifies the manufacture, eliminating the need to use complex welding equipment. Step-by-step instructions:
- The base is made of a bar with dimensions of 40×40 millimeters and plywood sheets.
- The tabletop is made of lacquered or laminated plywood. In the center of the table top a cut is made, into which the cutting disk will enter.
- The circular saw is secured from below by bolts or other fastenings.
- A switch is installed, which allows you to turn the saw on without lifting the table top. It is also possible to perform a circular saw without a switch, for which the working saw is switched to “On” mode, and then the only thing left is to apply voltage to the tool.
- The sliding stop can be made of furniture rails and fastened to the wall of the circular saw opposite to the switch with the help of angles. The presence of such a stop makes it much easier to cut wood.
- The longitudinal stop is made from metal angle, and its movement is carried out by loosening the bolts. Fixing bolts are in small, parallel to each other, kerfs of the table top.
- All that remains is to conduct a test run of the tool and, if necessary, make adjustments.
This variant of making a circular saw will be an excellent choice if you need a tool for sawing boards up to 3 centimeters thick. If you want to make a powerful and multifunctional device for the home, use electric motors with a capacity of 5 kW and more, which allow you to handle and saw boards with a thickness of 5-8 centimeters.
Making a home-built circular saw is not too difficult. You can use an angle grinder or hand saw, which are mounted inside the wooden base of the machine.
Some masters make a more complex tool, which implies the use of powerful electric motors, V-belt transmission and saw blades of a larger diameter. If there are any difficulties, you can find thematic videos on the network, telling how to make a circular saw with your own hands.
A flexible shaft for an engraver or drill
Hi all. Quick-release flexible shaft that can be purchased separately for an engraver or drill.
I have already written about how and for what I used a powerful 400W engraver
And about the homemade stand for the engraver/drill.
Nothing complicated about making a stand, in fact you can replace it with a piece of board / plywood and a pipe clamp from a hardware store. Diameters: 60 and 35 mm
You can use a special vise-clamp, the price is 10
One of the purposes of such a stand is to hold the drill while working with a flexible shaft.
A few words about the flexible shaft for the engraver
Suitable for high-powered engravers and drills, designed to be mounted in a cam chuck. Length about a meter, made quality. metal, handle aluminum, on a shaft on bearings. The handle has a small key chuck for clamping bits with a shank up to 6mm.
From the lot:Material of the handle: Aluminum alloy Diameter of the chuck: 6 mm Clamping dimension:0.5-6.5 mm Max Speed: approx 10000 r/m Handle (Length): 15 cm Handle (Diameter): 26 mm Total Length: 110 cm
Picture of the shaft shank, which is clamped into a drill or engraver. Note the bearing.
Can be used like an engraver. with nozzles or drills.
So, the package came in about 12 days. I ordered from stock at
And, despite the small size, the package was weighty.
Inside the package is a small set: a flexible chuck extension, as well as a wrench to tighten the chuck.
Exterior view of flexible shaft
I liked the quality of workmanship: there are springs and a metal sleeve for the shaft
There is indeed a bearing in the shank.
You can see the retaining ring and 608z bearing inside in the photo
The jacket is a corrugated metal sleeve
Appearance of the handle
The size of the handle is about 15cm
Jaw chuck, up to 6.0 mm
In the handle similarly there is a 608z bearing, as well as a shaft with a slot for the installation of a flexible extension.
There is an o-ring on the cap
When reassembling, make sure the slot is in the groove.
Then it clicks with a characteristic sound (in the photo without the cap for clarity)
Assembled and before mounting in the holder.
This shaft is suitable for use with a drill or electric screwdriver with speed control and a cam chuck. The only disadvantage is that you need to use your left hand (left heel, etc.) to pull the trigger.п.left hand (left heel) pushing on the tool’s trigger.
So I recommend to look in the direction of devices like foot pedal. A drill clamp can be made like this or look at a vertical stand.
And in terms of work with flexible shaft all the nuances repeat the work with the engraver itself. We take a wrench.
By the way it is a universal wrench. it also fits in the 400-watt engraver
Clamp the tool and work.
I most often use for post-processing models
It is very convenient to remove the “elephant’s foot”, seams after gluing, printing defects, etc.п.
As for the choice. I took this lot, but as I understand there are not many left in stock. There is also an alternative lot, with a similar price, different stock From the accessories still recommend to pay attention to the vertical stand and a special vise-clamp for mounting an engraver or a drill.
To be honest, it would have been cheaper
Get a 400W set of graver at once with a flexible shaft (this is type 5 in the lot). But as they say, that ship has sailed.