Hitches (Part 2)I am still waiting for printed hitches, so have decided to press forward with making my own as a back-up plan. Making small parts like this is fiddly work and I use the technique of making more than I need and then selecting the best ones.
Hitch HeadAfter building my prototype hitch, I thought that the hitch head would look better if made slightly thinner, so I used .015" x .188" stock. After cutting the heads to a scale length of 3'-3", I cut out the slots for the trailer kingpins:
I then cut the rear tapers on either side of the slots for the trailer kingpin:
The forward corners were then cut off at 45 degrees:
A small needle file was used to clean up the slots. Here are the finished hitch heads (looking somewhat like a squadron of Millennium Falcons):
Angled Support StrutThese were assembled from lengths of .020" x .020" cut to 6'-6" in length and .010" x .100" cut to 3'-6":
After marking one end of the outer struts 12" in, the central plate was added:
The second outer strut was then added, using an angle block to ensure that the outer struts are even with each other:
Here are the finished angled support struts:
Retraction RacksThese were assembled from two outer strips of .020" x .020" and a centre strip of .010" x .020" with .020" x .020" spacers in between. These pieces were placed against a steel rue and angle block to align the parts, and a strip of .010" x .020" was then glued across one end:
After allowing the glue to dry, the assembly was trimmed to a length of 4'-0" and then placed between steel rules. A second strip of .010" x .020" was placed across the opposite end:
After the glue had dried, the excess styrene was trimmed away, leaving the finished parts:
Vertical Support StrutThese were assembled from .030" x .030" cut to 4'-0" for the outer struts, and .020" x .080" cut to 3'-0" for the centre plate. The centre notch at the top end was cut out at this stage:
A steel rule was used to glue the first outer strut against the centre plate, with 6" at either end:
A second steel rule is used to ensure that the second outer strut is aligned with the first:
Finished PartsThis photograph shows the finished parts, which will be assembled to provide four hitches for my two cars:
Meanwhile the cars continue to perform well in occasional testing on my layout.
Tim