Guys, hello to everyone! I want to present you my new work, namely a large belt grinder. It all started with a project in a 3D modeling program. This is the project I have for this dnvais. And now I will tell you and show you step by step how I made it. It all started with the motor, it is a three-phase electric motor at 1350 revolutions per minute, the power here is probably 1-2 kilowatts, it is impossible to read it on the label. Then I made a 3D model of it on the computer and started designing the device. The parameters of the belt grinder provide for its operation with tapes from one to two meters long. Decided on the approximate diameter of the drive pulley, it's something like 160-170 mm. And he started working in the workshop precisely with the drive pulley. I decided to work according to the scheme I tested - a cut sheet of plywood and a metal sleeve. Everything is glued with glue and twisted with strong screws. The work is not difficult for me, since it is not the first time I do this. My lathes help me a lot in this. The next step was the production of rollers. I made two straight rollers with a width of 55 mm and a diameter of 60 mm from kaprolon, since I had it. 202 used bearings. And I decided to order a steel barrel roller, I didn't want to make it myself. But I regretted it, the video that the so-called master made for me had a stroke of 0.5 mm. And I resharpened it myself. In this video, I used bearings number 203. I turned the axle for it myself. I decided to fasten the rollers to the axles with the help of corkscrew rings. The next step was to cut out all the metal parts of the belt grinder from 10 mm thick sheet metal. I entrusted this work to the laser. He cut everything clearly, but some parts were twisted and had to be finished with a file. Everything as usual, another failure. First, I welded the base of the structure with tacks. Then I hooked the motor to the transition plate. And already welded it to the main sheet. The motor is attached both with paws and through a flange. The next thing I did was the barrel roller tilt mechanism. The design is quite clear, and makes it possible to adjust the roller in different planes. I printed the handles on a 3D printer. The next stage, this is the main crossbar, I decided to make it from a pipe with a square section of 50*50*5 mm, and its niche will be the same square pipe, but with a size of 60*60*5 mm. So far, I do not have a milling machine to make high-precision milled parts. I do what is. The bolt holder is welded to the supporting main plate. From a distance, it may seem that everything is almost ready, but there is still a lot of work ahead. I am putting together the parts that are already there. I cut out a couple of corners for the stop plate. I cut the main table from a piece of stainless steel. Next, you need to make the bars for the table, the task is not easy, but I can roughly imagine how to do it without a milling machine. To press the lever with a barrel-shaped roller, I will use a furniture stop, I bought three, with different pressing force. In the process of work, I will see which one is better. I am installing a stop plate and a table. I will paint everything nicely, this is also important. I put the whole structure together. Here he is, what a beauty, I like it very much. Now will be the first run, I hope everything will work great. With this diameter of the pulley and revolutions of the motor, the speed of the stitch should be 18 m/sec. Great, I'm very happy, my build works, it's amazing. Let's try it at work. We hope for your likes and comments on the video. Share this video, I will be very grateful to you. All the best, see you soon! ... https://www.youtube.com/watch?v=aeYzS6G-iOY

What you need to make a metal lathe in your home workshop - a piece of channel, a pair of angles, profile pipes, electric motor, lathe chuck, wide thrust bearing, drive pulleys. And from the tool, it is an angle grinder, drill or drilling machine, files and welding machine, and most importantly a great desire to do something with your own hands. What did I do? Almost all components of the lathe were found at the acceptance of scrap metal. I took a 200x75 mm channel as the basis of the machine, welded four legs to it, made spacers. Then welded fasteners for electric three-phase motor. Then, with smaller channels of 140 mm, I fastened the racks for the front headstock. I try to make everything collapsible, and fully welded. Then with the help of bolts and nuts fastened the thrust bearing of the front headstock. And to it a faceplate and a turning cartridge with a diameter of 125 mm. There were already two pulleys on the thrust bearing. I will also need to buy a drive belt, about 1305 mm long. The first part of the work is almost completed. Everything turned out to be much more complicated than I thought before starting work, as it almost always happens when you do something for the first time. The next stage will be the most difficult, I think, namely the design of longitudinal and transverse feeds. There are ideas, but their implementation will not be easy, but as you set out, you need to bring the case to an end. Not 1K62, tv-4, izh250. The self-made lathe on metal is made of scrap metal. How to make a lathe on metal. Look what I found at the metal reception. In this video you can see the following things that I did myself: Tap holder - https://youtu.be/IuSP_WaZCnI Trolley for welding machine - https://youtu.be/fPNwLn7WH5s Small metalwork vices - https://youtu.be/IOlcyjMVtCU Workbench table - https://youtu.be/IKgRqAuNz94 The lamp is made of gear - https://youtu.be/IG5VbXIZNZ4 Belt grinder made of angle grinder - https://youtu.be/0B8eak8RH90 PS. There is a lot of milling machine for metal, but this is another level :). Thank you for viewing. PPS. Support me on Patreon - https://patreon/madeingarage ... https://www.youtube.com/watch?v=OQbGEt1JGFk