@cotty said:

If you don't like this anwser, you can upload the model to get a more specific hint...

Sorry, I'm very new to all of this, that being said, I don't know how to send you the model.

I'm rather new to Sketchup. I'm using 2015 Make. I'm trying to use Sketchyphysics 3.5.6. I made a model of a Christmas amusement park ride and I want to have Santa's sleigh and reindeer moving around similar to a rollercoaster. I made a basic box with wheels and it rolls just fine on the track I made. I downloaded a 3D model titled "Santa Claus and Rudolph reindeer sleigh" by:psaf. I tried to put wheels on it to make it roll and it won't work. When I hit play it points upwards and sporadically floats around. I clicked on explode then I made it a group but I can't seem to make it coast down the track.
Please help I would greatly appreciate it! I need to have this done soon to convey the basic concept to someone at the end of January.