I thought this would be an interesting picture for some members who are interested in Visco type fuse production. Attached is a close up of just spun 1/8" American made Visco type Safety Fuse. This is the commercial grade used by pyros and hobbyists. As can be seen, it consists of 2 winds of cotton thread (12 inner and 5 outer) encasing the black powder core. All weaving is done under constant tension in order to maintain proper diameter and to prevent powder from escaping from between the threa