Carruagem British Rail Mk1 N Gauge

This is one of my rolling stock designs in my railway collection. I have based it on the British Rail Mk1 Coach with 'Tourist' class seating plan and window layout. It has 2 mini bearings to secure the bogies so have gone without any additional weights. Given this is N gauge, the STLs are designed for resin printing but would be interesting to try larger scale with PLA.

Please see settings section for parts and assembly.

I used a Elegoo Mars 5 for this build with Black ABS-like Elegoo 405nm IR curing resin. I think it is worth it for the extra strength in these small scale parts. I use Chitubox Basic for slicing with mostly standard settings. I backed off the 1st layer exposure to 20secs as it was far too difficult to remove. The supports are set to 5mm height and just 'light' support.

Parts List
Wheels x4 - AliExpress Ref 1005007293594493
Springs x2 - 10x0.1x1.4mm AliExpress Ref 1005004657694818
Bearing x2 - 3x7x3mm Amazon Ref B07FXXKZHG
Screw x2 - M2x6mm Amazon Ref B0CPHM3RC1
Nut x2 - M2x6mm Amazon Ref B0CPHM3RC1

Assembly (see image)
1) Couplers x2
Push the springs over the pin on the bogie.
Locate the other end of spring into coupler and push the coupler so it clicks into place.
Be careful to make sure the couple and bogie line up and doesn't bend the spring.

2) Wheels x4
The wheels simply click into place. Make sure they are located in the dimples and are all level.

3) Bogies x2
Use the M2 screw and nut to secure the bearing to the bottom of the coach.
Push and click the bogie in place onto the bearing. The bogie should move freely.

4) Interior
Insert the interior into the coach making sure it is the right way round so the tables line up with the windows.

5) Roof
The roof pushes into position. Use a few tiny spots of glue to secure if neccesary.