Performing of graphic works significantly faster if you add a spring reservoir for ink. Make it from medical pipette, attach it to the handle of the instrument with metal braces. So as not to crush the glass under the clamp should enclose a rubber gasket. At the end of the dropper is pushed tightly plastic or vinyl chloride tube with a diameter of 1.5…2 mm, bent so that its end is between the cheeks of spring. P. IVANOV, Stupino, Moscow region, Russia. .
Recommend to read
LIFEGUARD SUBMERSIBLE PUMPS
In the process of exploitation of the deep (submersible) pumps often break. To catch them on the outside of the flange for lifting from the well is impossible due to the tight fit of the...
SCHEMATICA CLIMBS
We offer a simple glider is designed for young athletes, students 4-5 classes. The model is simple to manufacture, does not contain elements from scarce materials and can be recommended...
