Did you ever have trouble getting shroud lines through the tight loop on a snap swivel?
Lonnie Buchanon showed me a tool he made at the last R.O.C.K. launch.
TIP: The end of a stiff wire is bent in a tight, long "U" shape.
Hook the "U" around the shroud line loop, feed and pull it through the swivel end.
Simple and effective.
Ah yes, a variation on the concept of the needle threader.
ReplyDeletehttp://sewing.about.com/od/notions/ss/needlethreader.htm
Hi Naoto,
DeleteYes, I have a few of the old style needle threaders close by. I even used them when rigging model ships. Sometimes it was easier to get a line through a small block with the old style threader.
I have several rolls of cheap "safety wire" which I use for a broad variety of rocketry tasks. For instance, I use a long piece folded at about the one-third mark to fish shock cords through mounting eyes or loops deep inside a rocket; by using such an anchor, I don't have to keep adding glue every time a shock cord needs replaced, and I can put this kind of anchor in a rocket that isn't shaped well for the "replaceable Kevlar" anchoring system. I put such a loop in my FSI Sprint clone last year, and I pointedly did not attach the shock cord until it was done, just to prove I could make it work.
ReplyDeleteHi Chris,
DeleteI'd be interested in seeing your safety wire shock cord anchors. You are right, there are times when the replaceable shock cord mount won't work.
I have a straightened coat hanger with a "U" bend on one end and an "L" bend on the other. It's used to pull Kevlar out the rear engine mount when I have to tie on a shock cord.