A Two Lane entry/exit for a 15 degree angle "Rainbow Changer" a track section allowing you to do a lane change thru a banked corner. Is compatible with Tamyia mini 4wd 2 lane track. To make a full rainbow changer print two, and add single lane track to connect them. The ramp section has a lip to help support the attached track. There is an error with this models lower inside lane wall being to short. I have uploaded a spacer to allow for it to be connected to other track without modifications. https://thangs.com/designer/rucdoc/3d-model/Rainbow%20Lower%20Lane%20Spacer.3mf-921606?manualModelView=true

Version 2 fixes the clearence issue as well