How to collect a spotter yourself?

Spotter is a device that, at the time of passage of current, generates a large volume of heat directly in the contact area of the welded parts. This device is especially indispensable in those situations when it is impossible to get to the surfaces with dents from the back side. For example, to fix the rear wings, doors and thresholds. The force in this case will be applied exclusively to the outside of the surface. And it is quite natural that many car owners would dream of having such an instrument in their arsenal. However, the price of new equipment can now reach several hundred euros. For this reason, some motorists decide to make a spotter with their own hands.

List of necessary tools

Before proceeding directly to the assembly process, you should ensure that you have all the tools and materials you need to operate. First, you will need a welding transformer and an electronic relay. The latter must be installed on the thyristor V9. Secondly, in advance it will be necessary to take care of the presence of a small auxiliary transformer, which will subsequently be responsible for powering the control system network. Thirdly, you will definitely need a power unit and a welding gun.

It is from these two parts, as a matter of fact, and consist all self-made welding machines. Fourth, a small amount will require a flexible cable and casing. With the help of the first, the parts making up the homemade spotter will be connected, and the second one will be necessary for the power unit. And finally, fifthly, you will definitely need an electrical circuit for assembling this type of equipment.

How to make a spotter yourself?

In order to assemble the device itself, as it was said before, only two elements are needed - a power unit and a welding gun. In this case, for the latter, a part from the traditional semi-automatic is used, however, it will be necessary to mount the so-called brass axis with M10 thread. It is thanks to her that the device will be connected to the straightening machine. And only after that it will be possible to attach the welding cable. Among other things, it should be emphasized that at the other end of this wire will have to accommodate the power connector, which is necessary for making the fastening. In addition, making a spotter with your own hands, it is extremely important not to forget to attach a pair of studs to the thrust washer, and fix the rubber gasket from the back side.

The advantages of a homemade spotter

The main advantage of a self-made apparatus, which significantly distinguishes it from any other type of welding, is that it will not have welding clamps. It will take only a fastening element, which you can choose from anything you like - from the most ordinary nut to the stud. In addition, one of the main advantages that a spotter possesses, assembled by its own hands, experts rightfully call that the temperature of the surface with a dent in the area of direct contact will rise to a point that does not reach a melting point by just a couple of degrees. Subsequently, this will make it possible to fasten the fastener very firmly. To work with such a tool is a pleasure!