BMS/Alway Saturn V Build, Part 25, Tube Trim and Engine Mount

Finally you get to trim the low end of the body tube.
Cut the hold-down tics. You might have to do some other trimming if the laser line didn't go all the way through.

Here's how the low end looks with the end cut off. The extensions are more support for the fin fairings.









The engine mount is glued in.
I set it in at an angle and ran a bead of glue all the way around.

The mount is pressed into place with the nozzles centered at the fairing locations.

Notice how the narrow end of the nozzle overhang butts up against the end of the body tube. The centering ring will be even with the end of the tube.