|My preferred method of subroadbed support: 1x3 with riser attached allows for easy height and tilt adjustment.|
|Apparently, I'd cut it about a 1/2" too low. But that's easily remedied with another pass of the drywall saw.|
Now through the wall, progress slowed to a crawl as I figured out how to engineer a hinged drop-down across the doorway. Looking at the doorway, I spied the first part of the solution - a hinge! I'm not going to use the door there anymore, so I could just use one of the hinges that was there.
|Standard door hinge mounted on a 6" length of 1x4 for solid backing and rigidity.|
|Close-up of the assembly|
|Just fill in the hole with a dowel or something similar - here I'm using a bamboo skewer - and snip it off. You can then drill a new hole and screw in at a different place without having the screw "travel" into the old hole!|
And here it is in it's lowered state:
I constructed the "other"/receiving end much the same way as the hinged end. I again used a scrap of L-girder screwed into the doorpost stud. But this time I added 1x1s on either side of where the span would come up - these act as a track to guide the span into place. I also customized the 1x4 "cap" (the piece on top of the L-girder) to fit around the door moulding and cut a slot to accept the end of the span.
I then attached subroadbed on top of all that. Note that the subroadbed goes over top of the slot to meet the end of the span. Also note the use of business cards to shim in a few places to get things perfectly level and tight. For now, I just place a piece of 1x3 in the slot, cut to the correct length, to support the span when it's in place.
Once the cork is dry, I'll lay track directly across the span and use my Dremel cut-off wheel to cut the rails where the need to be. I'm considering laying Atlas rerailers across the joints and cutting the rerailers, but I haven't decided on that yet. I'll let you know!