M840? Just had that problem a few weeks ago. The usual dowel or cardboard stick they provide will not go around the corner.
We have a bamboo blind at the launch site that was specifically purchased for the task. Grab three of the wooden sticks from the blind, hold together as a bunch, and using tape attach the igniter to the top of the bunch. Add a couple more pieces of tape along the bunch to hold the wire and the bunch together. I think you can figure out the rest. Works well.
View attachment 323729
Yep. Probably depends on the quality of the blind you buy. Ours was really cheap and maybe even thinner than toothpicks, so one was not enough. Three felt about right. YMMV.Do you need 3 pieces for strength?