To hold the centerline on the workpiece will help the device shown in the figure.
Recommend to read
UNIQUE ROCKING
One of the most important components of the control system with cord model airplane rocking chair that serves as the connecting link between the cord strands and rods for the rudders....
GEAR MAKES GEAR
quickly and Easily you can make gears on a lathe with modular knurling. But the trouble is that this tool is so scarce that not even all the modelers and heard something about it....
