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
DRILL IS THIN AND LONG
To drill the axial bore of small diameter into a long cylindrical part is not so easy even on the machine — drill was almost certainly "will lead". To gain maybe a simple jig made from a...
ELECTRONIC METRONOME
It is used in teaching music in rhythmic gymnastics, in experiments in physics etc. a Metronome, a scheme which offers Bulgarian journal "Radio Television Electronics" (see Fig.), gives...
