Common cause of puncture welcomer — acting limit switches rim spokes. A protective ring belts rubber, mounted on rims of plants-izgotovitelej, a little stretchy, but over time, harden and break.
A reliable replacement could be the same ring from an old inner tube from the “Lada”. They are cut on either side of the large diameter of the camera — it turns out two great strips with a width of 17 mm.
Recommend to read
“THIRD HAND”
When working with small parts — for example, during soldering of electronic circuits, usually both hands are busy and you want or assistant, or an additional holding device. In this...
UNIVERSAL STOPS
Try to cut multiple identical workpieces on a lathe. How many times have to use a caliper! But if you make for his Studio, universal focus, the workpiece will turn out one in one — and...
