How to cut a pipe to make joints at any angle

  • Jul 31, 2021
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Today we will talk about locksmith work with a round pipe, and specifically how to insert a pipe into a pipe at any angle. Basically, this is done in two ways - either by eye, adjusting the pipes several times, or you need calculations, drawings, programs from the Internet.

The first option is very rough and inconvenient, the second is difficult for most. Not everyone knows descriptive geometry, which is studied at the university.

So let's go the third way and come up with a simple cheap homemade product from improvised pieces of iron. And with the help of such a homemade product, we will make pipe inserts at any angles. Friends, the article is great to show you as much information as possible, so if you are not interested in hardware, you should not read it. Go!

To insert a pipe into a pipe at an angle, you need to mark such a shape on the pipe to be embedded so that, after removing this shape, the interface with the main pipe is as tight as possible. Such a connection will be easy to weld with electric welding.

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I took a profile pipe, a piece of a profile pipe. I sawed it along the edges, one might say, I dismissed this piece into 2 corners. The corner will be a blank for our homemade product. See what a homemade product looks like from a corner.

Here's a design turned out, flip through this gallery to see more photos. We sharpen one of the shelves on both sides, we look further.

On a shelf with a sharp edge, we use a ruler to make markings. Each division will be approximately 2 mm.

Why exactly the shape of the corner. When the corner rests on a round pipe, then its shelves, and in this case the pointed end of the shelf, will be exactly along the pipe axis. With a corner it will not work any other way!

We grab the pipe to the pipe at an arbitrary angle. We will assume that this is the corner we need for our purposes. And now we will mark the shape that needs to be cut on the pipe.

We make a mark in the middle, so to speak, at the highest point of the end of the cut pipe. Then, through this point, we lower the point with a marking corner until it touches the main pipe. At the moment of touching, we put additional marks on the corner and do this on both sides.

This is what it looks like. An additional mark is placed at the level of the pipe end when the point touches the surface.

Now we lift the marking corner back along the axis of the pipe at the moment when the tip is at the level of the end of the pipe. At this moment, we put a point on the pipe at the level of our markings, which we made at the corner.

We move the corner a little to the side from the first markings on the pipe in any direction and also lower it until the tip touches the main pipe. We look at what distance from the end the markings on the corner will be, in this case the markings have gone one division.

We lift the corner back along the pipe, but do not reach the end of the pipe with the tip at a distance of one division. In this position, we put a point at the level of the corner marking on the pipe.

And so we make markings on the pipe in one direction and in the other. Then we connect these points. This will be the segment, the shape that we need to cut in the pipe.

Cut out this segment and also need to round off this sharp corner. So it will be better for the pipe to sit on the surface of another.

We sharpened the corners, figure out the pairing of the pipes, and grab them. Let's see what happened.

Here's a pairing happened. The gaps are minimal, there is nothing more to adjust, you do not need to trim before welding. Now mark on the main pipe along the mating contour and cut out this contour a marking.

So, without complicated calculations, we made an exact figure on the cut-in pipe. A simple homemade product for 20 rubles, that's me, maybe a little more, because the price of a professional pipe grows by the hour.

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