Hello to all metal lovers and self-taught people in welding.
Marking a round pipe is a little more complicated than a profile one, I will show you 5 ways to divide a round pipe in half lengthways or into 4 parts. This knowledge will come in handy for sawing pipes at an angle of 45 degrees, cutting a pipe into a pipe, and many more options.
We have a piece of 76 pipe, 76 mm is the outer diameter of the pipe. We will do the markup.
The most obvious way is to use a tape measure. We know the diameter of the pipe, let's remember a few rules from school geometry! Let's watch a short video on how to do this.
But that's not all, there are 4 more simple garage ways to mark and divide the pipe along.
The first way, we make markings on any surface and transfer it to the pipe end.
The second way - you will need a piece of paper so that the length allows you to make a turn around the pipe with an overlap.
The third method, if the pipe is small, can be marked simply by rolling one revolution over the surface with the marked marks.
The fourth way, we just need a disc from a grinder with a diameter slightly more than the diameter of the pipe.
Friends, I did not begin to describe these methods in detail, I just made a detailed video, where I showed all the subtleties of the work, let's see.