US-1 Wrecker Replacement Shell & Parts

This is a replacement US-1 Wrecker shell & related parts.  All of the parts here are interchangable with the production wrecker, so feel free to mix and match.

This shell requires a special weight to work.  You can use one of the following or make your own:
https://www.shapeways.com/product/4M4L7U8NR
https://www.shapeways.com/product/GNKENQDW6
You can also fab a weight yourself-- it's  19mm square, 2.5mm high, with a 4mm diameter hole in the center.

The inner bracket can be found here:
https://www.shapeways.com/product/VA9KG9FGF

And the tow hook here:
https://www.shapeways.com/product/PGB963QPQ

You'll  also need a light bar, such as the ones here:
https://www.shapeways.com/product/KSR9EUSW7

And of course, you'll need the chrome bits-- front grill, lights, and both exhaust stacks. You can use the ones off of a donor truck or order these in brass:
https://www.shapeways.com/product/GSTFCY8WA
https://www.shapeways.com/product/232VEHLG2
https://www.shapeways.com/product/ZXXSQKM6G
https://www.shapeways.com/product/ULLNF8DN4

If you want to get the flashing light working, you'll also need the following:
- a compatible "grain of rice' style light bulb.  Bulb is 3-4mm diameter, and a voltage rating for 6-12 volts (6 volts will be brighter but burn out faster, 12v will be dimmer and last longer, 9v is ideal, but hard to find)
- two short lengths of approx. 22 awg wire
- a 1.5mm diameter shaft that's 25mm long (servo control rods can be a great source for this shaft)
- you'll also need soldering equipment as the wires & light must be soldered.

When picking a material, the versatile plastic can sometime show layer lines on some surfaces, that looks like a ribbing effect.  The PA12 seems to have a slightly lower resolution, but more even surface finish and hasn't exhibited that effect in my prints.  But, the versatile plastic has the convenience that you can order it dyed in a variety of colors.