Rolling Stock For The Southwest

[Schraddel]

Meanwhile the links posted by Michael, aka nkp_174 , have helped to solve some riddles according to this 2-6-2.
<!-- m --><a class="postlink" href="http://www.atsfrr.com/resources/MooreJB/StmClnic/IHC4-6-2.pdf">http://www.atsfrr.com/resources/MooreJB ... C4-6-2.pdf</a><!-- m -->
Have a look to the photo on page 22 of the pdf.
There you see behind the ladder a strong vertical bar supporting the rear ends of the crosshead guides. Also the lower end of the ladder has a small flat bar connecting to the support.
Thank you for the link Michael!

Here is my attempt to make the crosshead guide support:



To my regret it was not possible to copy the prototype exact into 1:87. The horizontal distance between the main rods and the coupling rods was on the model about 0.5mm. Thee was too few space to make a support as pictured, may be possible for a shelf queen, but not for a running loco. So i decided to build only the outside part. Here between Main rod and eccentric rod was enough space to model the crosshead guide supports. They were made out of 1 x 2.5mm rectangular brass rod soldered to the valve gear support crossmembers and the the ends oth the crosshead guides.

And have a look onto the reverse schaft lever and the fixature to the main frame. Everey rotation, when the coupling rods were in their uppermost position, they touched the the reverse shaft axle. Causing the loco limping and binding on each turning of the drivers. On both sides.
So i turned down the diameter in the middle part of the axles to create more space even in sprung action and keep the rods clear of the lever axle.
This and a new quartering of all drivers eliminated the "mistery" binding at least.

And the lower ends of the ladders got bars connecting them to the supports as the prototype. So they will stay square even when handled accidental rough.


A further control photo to check squareness.





The chair car with its new side sills and new fishbelly shaped centersill. The centersill was painted matte black and the side sille were painted Chromoxidgrün RAL 6020. Not a 100% match but i think it may be a 95% match.
To come a little bit closer to the prototype every second buttress between the windows were taken out. Now it seemed to me the windows were a little bit too large. But anyway this will not become an exact replica of an ATSF chair car, but an close stand in.

Lutz