this is isaac again. i do have a design for the coaster i want to build. and i know how the train on the coaster holds on. because i actually design them. i got the launching part figured out but i need somethin for breaks. also i want the base to be plywood. but i want a physical hill in it so what do i need to make that out of. then i want to put astro terf on the base to make it look so real. i know i want it to be 78in long and 40in wided. so please give more help to start. oh by the way i do have to weld but i know how to do that. since im 13 im in school so please try to post after 2 45 thank you :thumbs_up:
