Micro K’nex replacement roller coaster chassis

thingiverse

This is a model for a replacement Micro K’nex roller coaster chassis. This has been designed to fit one of my LEGO/Knex car bodies on top of. The hooks on the front & back have been designed to be able to attach multiple of these together to make a full roller coaster train. For smaller trains like the Eurofighter I’d recommend 2 chassis per train whereas for longer sit down trains I’d recommend 4 (1 front & 3 regular cars), any more can usually look too long. Each chassis requires 6 wheels & 6 wheel nuts To connect them together, tip the cars to 90 degrees downwards & slide into the gap (as shown in the 2nd image). This has been designed so the chassis cannot come apart whilst on the track. To attach the wheels slide a wheel onto a bolt with the flanged end against the wheel bogie & attach a nut I haven’t been able to test this myself so I cannot be sure this works, however I believe it should, please let me know if there are any issues, especially with joining & unjoining the chassis together as it looks tight from my view. An inverted version will be uploaded at some point in the future I’d also like to credit Aubenc for the nut & bolt pieces: https://www.thingiverse.com/thing:8796 All measurements in centimetres (cm).