I started this project with one goal in mind: I. Am. Going. To. Make. A. E2. So i started, i would be replacing a LB&SCR E2 Class 0-6-0T. However, i wanted to modify the engine to look more like Thomas the Tank Engine.
E2 #105
The driving question was: How can we design an object to optimize its shape? We also had to use at least 10 shapes. So we had some restraints. My goal was to create a 3d model of a LB&SCR E2x Class 0-6-0T. The ‘x’ means it is a rebuild of the original. So i decided to get to work.
A photoshop of E2 #105 into a photo of Thomas
I created the model to maximize surface area. I also decided to add some stylistic choices. Here is my design:
i had 13 main shapes:
- Rectangular prism x5
- Cylinder x5
- Semi-Cylinder x2
- Semi-sphere x1
I needed to find the Surface Area & Volume of each shape. Here are the calculations:
Smoke Box:
π30.882 x 29.85 = 89,423mm3 Cylinder
25.21 x 19.67 x 20.90 = 10,364mm3 Rectangular Prism
Funnel:
π9.452 x 25.37 = 7,117.6mm3 Cylinder
π12.602 x 2.99 = 1,491.3mm3 Cylinder
Wheel Arches:
(1/2)π20.92 x 9.4 = 6,449.7mm3 Semi Cylinder
(1/2)π20.92 x 9.4 = 6,449.7mm3 Semi Cylinder
Side Tanks:
50.42 x 56.19 x 29.85 = 84,568mm3 Rectangular Prism
50.42 x 16.86 x 17.91 = 15,225mm3 Rectangular Prism
Boiler:
π30.882 x 73.05 = 218, 839mm3 Cylinder
Dome:
π14.972 x 8.96 = 6, 308.1mm3 Cylinder
(2/3) π7.22 = 7.5 Semi-Sphere
Cab:
50.42 x 33.71 x 52.24 = 88,790mm3 Rectangular Prism
(1/2)π2.992 x 3.71 = 158.3mm3 Semi-cylinder
Bunker:
50.42 x 16.86 x 38.81 = 32,992mm3 Rectangular Prism
😉