When sawing any, but in particular plastic pipes (due to its “softness”) to withstand the cutting line is exactly perpendicular to the axis (or if necessary – on the contrary, under the right angle) will help the duct tape. Wound appropriately a ring from it will not allow the cutter to get off.
Recommend to read
BUILT-IN PROTECTION
Not every radio has a built-in protection against so-called "polarity" and incorrect connection to power supply with a known high voltage (which is necessary, unfortunately, to...
AUTOGRANT IN THE HOUSE
The use of automotive capacitive sensor for home security. Automotive sensors swing (vibration), RF and capacitor, responsive to the approach of people to the car or movement in the...
