I came here to post about straight fixtures only to see they are now out. Woot. But that's only 80% of my problem.
I'm interested in module construction (e.g. NTrak) and so there is a connector track issue. Step one is being able to build straight segments to use across modules as people use the standard Atlas straight section of track today. I think the straight jigs can help here.
However, I'm wondering if there isn't a market here for a jig (or additional position on your combo jig) just for this sort of thing. Several observations:
Extra PC ties don't seem out of place for two reasons. One, increased handling by human hands, and two, if the entire drop in section were PC ties it would "float" just above the roadbed (with wooden ties on each side) making fits a bit easier. I can see making these segments with all PC ties.
It's hard to make these look right due to the missing ties where the rail joiners are located. Atlas sectional track attempts to get around this with the semi-ties on the end, and they do help. I've often wondered of a short section of round wire could be soldered to the outside of the rails to "clip" over the section that remains with the module to eliminate the need for joiners and allow ties right to the ends.
These all need to be the same length. Exactly the same length, so they are interchangeable. Since the Atlas dimensions are already out there I'd recommend their standard (4.91") and half (~2.5") as two good lengths. Cutting all the rail to the exact right length though seems tricky, and then getting them lined up with the PC ties without some sort of end enclosure also seems difficult.
Anyone tried making hand laid joiner tracks, and have any other thoughts and tips?