For fixing the film during drying, usually use special clothespins or clips. But if these instruments are at hand does not, they will replace ordinary paper clip.
Recommend to read
MANNED ROCKET
In the early 1960-ies of the Soviet armed forces required a new aviation-missile complex to combat air targets flying at altitudes from 500 to 23 000 m with a speed of from 500 to 3000...
WORKBENCH-THE TRIPTYCH
To design present a universal (I believe) bench is a necessary desktop DIY I came across several years of studying technical creativity. It was designed based on their needs. But I think...
