I made this for my son I hope you all like it! 

I designed this model so that you can change the colors by layer height. 

This model was printed at 140% scale with the following color changes at the following layer heights (keep in mind if you print at different layer height your color changes will happen at different places) :

• White - starting color
• Black - Change at layer 15

I printed this with a layer height of 0.2 mm and I had Iron settings as follows

• Top surface only
• Rectilinear
• 30 mm/s Ironing Speed
• 25% Ironing Flow
• 0.15 Ironing Line Spacing

Happy printing! Please post any comments or photos of your makes!