All welcome. Today will talk about how to calculate and make gash tapping pipe in the pipe at 90 degrees, both one and different diameters. Simple convenient method, which does not need the paper templates and calculation program.
Take for example the size of a piece of pipe of external diameter 76mm, and try to fit tightly thereto 76.43 pipe diameter and 38mm in order to make a frame by 90 degrees. The photo shows that the pipe 76 has a badly for tight connections-just its diameter is the same as the main pipe, and thus calculate the right at a time is pretty simple-but more on that in the end tell articles. Well, we'd better learn how to do badly for joining pipes of different diameters.
For example, taking the 43 pipe. See what you need to do first, we put it on the main pipe vertically and begin to tilt in any direction from the vertical axis. Cant we have so far, until we see that our side end 43 of the pipe is firmly seated on the surface 76 of the pipe-side end I call because I'm looking at it right and this place will see each other as the side. And at this moment it is necessary to measure the distance from the opposite side end face 43 of the pipe 76 to the main pipe. Here in the photo I had to grab the pipe to take the picture, so tack a little and pulled the tube distance turned a bit more than it should be, but I know the right size, I had tried on before potholders pipes.
These are the dimensions of the distance we have turned in 43 and 38 of the pipe to the surface 76 of the pipe.
Then, we need to break the circumferential end 43 of the pipe 4 on the flat part, the points denoting them. For this draw two perpendicular lines, note on two lines perpendicular lines from the intersection of the size of the center is equal to half of our pipe diameter. We put the pipe in the boundary of dashes and note 4 on it at the intersection point of the pipe and these perpendicular lines. On the other pipes, in addition to the main, which will crash, do the same action-break butt into 4 equal parts.
Pitched end into 4 equal parts now take our size from the end side to the main pipe crashed, and divide this amount by 2. Obtain the number of tubes 43 to 15/2 equal to 8 mm (round) and to the pipe 38 is equal to 13/2 6mm diameter smaller rounded side will not.
Then, these dimensions 6 and 8 mm from the pipe end mark in place of two opposite points, and then from these marks with a pencil or marker make smooth circular connection with the other two points on this pipe.
These are rounded markings should get. Then take a grinder and will cut we do not need a large segment of this mark.
It is easier to cut here such small parts, not Tselikov segment.
We cut unnecessary portions and slightly sawed two sharp protrusion at each pipe-3 millimeters, for denser planting tube.
Here is a smooth pair of pipes should have, if we act in this way.
As I promised to tell at the end of the article about the cuts in the pipe, if the will to make a frame identical diameters.
Here in this photo, and the basic and crashed tube having an outer diameter 76mm. If pipe diameters are the same, there is nothing to calculate is not necessary. Just take a third of the diameter, in this case it will be 25mm, and split end into 4 pieces, celebrating the 25 mm from the pipe end on two opposite points of a semicircle and also connect with other points on the end pipe. When the diameter of the same, we divide the diameter by 3, and this number of working with markings.