To those with a 3D printer - here are the files. I have moved the ladders and brakewheel as noted and made other small adjustments. I print them in halves so that no support material is needed during the print. I use a glue that dries clear.
Key to files:
Centerbeam2 - non-ribbed floor and no brakewheel support
Centerbeam3 - non-ribbed floor with brakewheel support
Centerbeam4 - ribbed floor with brakewheel support
Centerbeam5 - ribbed floor and no brakewheel support
Glue 2 and 3 together to get the non-ribbed type.
Glue 4 and 5 together to get the ribbed floor type.
Print 2 ladders for each car. My printer prints the holes for the ladders a little small, so I ream them out a little with a 1 mm drill.
The brakewheel comes from the "American Flyer Parts - Caboose" page on PortLines.
(BRAKEWHEEL, 1-pc plastic, for end-railings)
They will fit snugly on SHS and MTH flatcars. You will need to gently work the pins into tie-downs along the sides of the cars.
Good luck. Happy printing.
