The one who often have to use a vise knows that the most difficult thing is to hold them a wedge-shaped or cone detail: when processing it loosened and slips out. However, if you apply a semi-cylindrical auxiliary plate, the problem will be solved: surface it is firmly pressed against the cheek of the wedge or cone, and its spherical surface are well dock with a sponge — holder in the vise will be reliable.
Recommend to read
ELLIPSOGRAPH
The construction of the ellipses associated with certain difficulties, that's why when drawing the axonometric images this process takes the lion's share of time. I invented ellipsograph...
LARGE DIAMETER? DO
In the practice of the house master, there are cases when you need to drill a large diameter hole, and nothing. In this case, will help improvised hollow drill bit, suitable for...
