I was asked to help hang some closet doors. $1800 doors, they probably weigh 100# per door, working space is super tight and the "client" (my friend) is REALLY fussy, so this had to be as close to mistake free as I'm capable of.
The trickiest part was plowing a plunged groove into the bottom for the guide. I didn't want the groove to pierce the vertical door edges, so careful stopping and starting was as critical as centering the groove. I set up a test rig at home to figure out the tooling, did a few dry runs on some scrap and moved the whole circus (or '
zarkus'; my friend is a native German from Berlin).
It worked! She's pleased, the doors are hung and roll on their tracks perfectly and I'm happy that I can still actually devise a plan and execute it to a satisfactory result. Not perfect, but I won't point out the flaws.
The home rig

Setting up the jig off site

The first cut is the scariest. Blurry shot. Video screenshot.