Taller ramp for the taller base for the collapsible dice tower

The original “taller base” remix had some extraneous internal geometry, and while the walls and door opening were extended, the ramp was left as is. Since the base ramp and the “2nd layer” piece were designed to create a seal, raising the point at which it sits without also raising the ramp walls broke that seal. I found that with the unaltered “taller base”, I would occasionally leave dice stuck on the upper lip of the ramp walls around the insides of the tower, particularly the pointier dice like d8 and d4. I also found that the ramp was a little shallower than I'd like to get a nice roll into the dice tray. In order to mitigate those 2 issues, I cleaned the model of it's internal geometry and stretched only the internal ramp upwards by 8 additional millimeters, roughly as far as I could without interfering with the collapsed pieces.