John pretty accurately describes it as "...this so totally half-ass-looking system of jigging up the bike and the rack with hunks of lumber and big clips that just seems impossibly error prone -- but it works really really well."
I don't know about really really well. It's been working alright, but what a royal PITA. The setup is all so fragile that if you even breathe on it the wrong way, it all goes sideways. Apparently I hit the wall at shop night last week, fussing around with shims and bungees and all that krap, because my motivation to do something about it pegged out my OCD meter and I went all crazy on a concept that's been rattling in my noggin for a while.
Here are some shots from the multi-day fab binge:
|Adding the upright to the foundation. This will support and level the bike.|
|Trying to keep everything as square as possible.|
|Extensions for the main angle that the bike wheels rest in. Mental error; I cut the main angle long enough to handle various wheelbases, but not long enough to have clearance for the levelling jack screws at the end.|
|Easy fix: just hack a chunk onto the end!|
|I spent a lotta time dwelling on the best way to level up the bike after it' been set in the fixture. This is part of that.|
|Math always goes so much easier with beer.|
|Making some t-handle bolts.|
|Main angle's getting pretty long. Where in the hell am I gonna store this damn thing?|
|Main angle bolted to the foundation and testing the levelling method.|
|Making the supports for the uprights.|
|Fitting the supports for the uprights to the main angle.|
|The main angle didn't have enough torsional rigidity, so I had to add some outriggers. (That is the geekiest sentence I have ever typed, and it probably makes no sense whatsoever. Next picture, please.)|
|I think I just won't say anything here.|