When welding two metal or plastic pipes, there is often a need to pre-cut them to the desired angle for proper docking. How to mark this angle on the tube?
It turns out that the easiest way to make using paper strips, wrapping her pipe, or piece of paper on which the protractor is marked to the desired angle of cut, place the pipe and the cutting line is carried out with pencil or Scriber the line of the future joint.
Recommend to read
MICROSCOPE FROM A WEBCAM
Talk about making microscope with computer connection with an increase in 300-500 times. This increase is enough for examining the cellular structure of plants, observing the behavior...
THERMOSTAT FOR VEGETABLES
Read the article A. Christmas "Cellar, on the balcony" ("M-K" No. 2, 1984) and not all agreed with the author. He applied heater power of 500 watts. This implies that the air circulating...
