I made a template to route out a drop through opening on the ends of my longboard. This jig will give you the open ended style drop through openings, allowing you to slide the trucks on without disassembling them. I have only tested the opening with Boardnamics CNC baseplates so far.
Bolt the template to your deck with m5 bolts, then cut out a rough opening with something like a jig saw and spade or drill bits. Then use a top bearing router bit and the template to clean up the opening.
The author marked this model as their own original creation.