The need to sample a semicircular groove often occurs during the manufacture of home-made furniture or the construction of a garden shed. How to do it without the special tool! The figure shows the method of manufacturing such a groove with a conventional circular saw — a workpiece moving along the inclined installed a bar-rail. The tilt angle depends on the width of the groove and determined by the elementary measuring instrument of the type of a parallelogram and the line.
Recommend to read
THE WING OR SAIL?
The question posed in the title, still have not found a final resolution. The first experiments to replace the traditional sail is a vertical wing, by profiling and design friends of the...
EXACTLY IN THE RING
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...
