Lesson Learned

I should have learned from the experience of others that once you say the word "3-D" out loud Murphy's Law goes into effect to slow down any meaningful forward progress, or so it seems.  Realized after attempting to match the bevel angle of the bulkhead sides with the jigsaw that the blade, just like humans, is prone to wander.  The resulting gap in bulkhead 4 was far too large for my woodworking ego to allow...

So, epoxied part back in place and will make the correct cut once dried.  As you can see from the picture, cut was not even close!

.

Plan B on bulkhead 1 went much better; cuts made with handsaw and final fit with chisel.  Yet another oops shows itself here, but angles are good and epoxy covers all. 

What's worse, these mistakes were made while 2 brains were present...My dad had the afternoon to assist and offer encouragement.