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
GLIDER CHAMPION
The triumph of the Soviet athlete V. Extencive in the class of models of gliders ended the world championship in 1973. Short nose and a relatively small shoulder are the main design...
CLEAN — THE GUARANTEE OF QUALITY
A good master always holds his instrument clean. Thoroughly washed with cushion will give a uniform coating of the painted plane, and that it is not collecting dust during storage,...