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
“STREET” – UNIVERSAL MOTORCYCLE
The desire to make a motorcycle of his own design came to me long ago. From the school years through my hands passed almost all manufactured and domestic models as well as Czech "Java"...
CLAMP AND VISE
There just clips and the clips do not come up with designers - and all this only in order to securely attach bench vise on the workbench. Not everyone, however, can be used in a home...