Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:7901.

This is a quarterpipe skate ramp. Drop IN!

I downloaded this file from Sketchosaurus in Google 3D Warehouse.

http://sketchup.google.com/3dwarehouse/search?viewer=15593598158642524994&scoring=m

I then cleaned it up using Netfabb online and scaled it for printing on the Thing-O-Matic. It prints out pretty nicely with an MK6, kind of a cool piece to try out your reversal values and new nozzle settings. The beams and overhangs can be printed without needing cleanup, depending on your settings. I was pretty surprised by that.