Migrated to:
https://www.printables.com/model/534440-semroc-apollo-capsule-les-tower-assembly-jig
This jig helps you cut to length (slightly generous so you can trim/sand the bits) and assemble the LES tower for the SEMROC Apollo capsule as used on Saturn and Little Joe II models.
The flat tower-side jig helps with a precise hold on tower parts, and the vertical jig allows you to assemble the inner components in 3 dimensions, without splitting the connecting ring - this looks lots nicer.
The pusher piece is there to help remove the flat tower sides from the jig, and distribute the pushing forces across the multiple joints and sticks, so that if you work carefully, you can get the whole thing out of the jig unbroken.
Pictured side-by-side above are my 2nd LES tower (and capsule) and the broken remains of my first. The second definitely has more finesse, though it's not perfect.
Hey, if it was easy, it wouldn't be fun!