The first step in choosing a machine is the type of use of the machine.
Below are some of the features of a lathe so that you can familiarize yourself with them and consider them when choosing a machine.
🔘 The main body of the device: A good and standard lathe should have a machined cast iron body. The cast iron body causes the device to have a higher weight and to work completely without vibration when the shaft is rotating, in fact, the centrifugal force of the rotating part does not overcome the weight of the device. There are some cheap Chinese devices in the market that use a metal can for the body, which is very unusual and those devices are not of high quality. Of course, let's not forget that there are many famous brands of woodworking machines in China as well, but due to low profit margins for traders and high prices, they usually go to European and American countries rather than Asian countries, for example, Harvey machine, which is one of the most popular of these machines, is also in China. is produced and the price of the t40 model is around 2000 dollars. He turned large diameter wooden trays. With any turning machine, you can turn a specific length that is between two birds and a certain radius that is from the type of bird to the edge of the machine. With this possibility, the axis of the operator rotates and the sub-axis of the machine is not limited by the body, and on the other hand, to empty the bowls, the opening of the bowl is placed directly in front of the lathe body. This is clear in the photo below.
🔘 The maximum length of the machine tool: The maximum length of the machine tool is the length of the work piece that can be placed on the lathe and turned on it. This length usually varies from 35 cm to 60 cm for small desktop devices and from 90 to 120 cm for large devices with a stand. Of course, some tabletop lathes have the possibility of adding a separate body to increase the length of the workbench, which is one of the advantages of the machine.
A desktop machine has a maximum diameter of 50 cm (from the axis of the machine to the surface of the body of 25 cm) and a maximum length of 60 cm, but in no way can a wood with a diameter of 50 cm and a length of 60 cm be fastened and turned on the machine. The length of 60 cm is for small diameters and the width of 50 cm is suitable for wood with very short length, such as wooden trays, their thickness is about 4 to 5 cm. > The meaning of lever connections and closures is that in the lathe, some parts such as the base of the cave and the base of the bird are constantly opening and closing, and if bolts and nuts are used for these connections, it is very time-consuming and makes the work difficult. Therefore, these parts are made in such a way that they are fixed in place by moving a lever or loosened and move easily. Professionally, in the monetary part of the main axis of the device, there is a round plate, around this plate there are holes with well-defined distances, which are usually 24 in tabletop devices, which can be fixed by turning a screw outside the device. He placed the holes and locked the axis of the device. This dividing screen is used when, for example, we want to divide a big bowl around the circumference into equal parts.
🔘 Round variation system: There is a general rule in turning, and that is, the bigger the work piece, the smaller the round of the machine. Because the bigger work piece produces more centrifugal force when rotating and it is very dangerous, so as a result, all lathe machines must have different revolutions. And the user can easily choose the right round. Among these systems, the following methods can be mentioned: * Foley and belt and hand movement * Solar foley and belt and rotation with lever * Dynamo with inverter and variation Round by turning the volume and showing the round of the machine on the screen
🔘 Engine power of the machine: The engine power of the machine is also an important parameter in choosing a lathe machine. We must know What motor power is needed for the work we want to do, so as to avoid spending a lot of money on the wrong choice of machine. Usually, a 1 horse or 750 watt motor is very suitable for desktop devices and you can turn almost large bowls with it, and for large industrial devices, motors up to 3 horsepower may also be used, although there are also mini lathes that Armature motors with lower power of around 300 to 400 watts are used.
🔘 The possibility of installing four systems: One of the main features of the lathe should be the possibility of installing four systems, that is, the axis The main part of the device is threaded. Of course, the four turning system is a separate device, it is not included with any device. Many users use the three small turning systems for turning, which is very dangerous because the jaws of the three turning systems are not suitable for holding wood on one side, and on the other hand, the weight They are much higher than four special turning systems.
🔘 Concentricity of the axes: The tip of the bird of the device with the tip of the axis of the device, which is the location of 4 teeth or four systems, must be exactly in the same line.
🔘 Smooth movement of the bird base and cave base: It should be noted that in a turning machine, the bird base moves forward and back along the table easily and is easily locked, and there are no obstacles for this work, and on the other hand, the cave base also The cave rests on it during turning, it must be long enough and move easily forward, backward, left and right (in all directions) and be easily fixed in place.
