Ballistic Cart

Meg Chen

University of British Columbia

PHYS 420C (2024)

Overview	Materials	Design + Construction
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Materials

Cart

Train

Track

List of Materials

(all the measurements are in millimeters)

(Please refer to this Onshape Design Link for more detailed dimensions)

Below is a summarized list of most (if not all) the materials needed to construct this demonstration:

Require 3D printing:

Flange x 1 Piston x 1 Cart Wheels x 4 Train main wheels x 2

Cart spacer x 4 Spring holder x 1 Train sub-wheels x 2

Require laser cutting:

Train bumper x 1

Train lid x 1

Train rim x 1

Train Base x 1

Train long side with opening for switch x 1

Train long side without opening for switch x 1

Train short side with opening for charging port x 1

Train short side without opening for charging port x 1

Track blocker

Require other equipment:

Cart base x 1 (waterjet cutting machine)

Cart long side x 2 (waterjet cutting machine)

Cart cannon x 1 (handsaw and milling machine)

Track rails x 2 (water jet cutting machine)

Wood (30 x 1220 x 162) x 1 (electric drill and table saw)

Rods:

4mm diameter, 60mm long, aluminum x 1

3mm diameter, 60mm long, copper x 1

4mm diameter, 150mm long, aluminum x 2

3mm diameter, 90mm long, aluminum x 1

Other materials:

Light ball x 1 Heavy ball x 1 Spring (around 90mm long) x 1 Non-slip rubber carpet tape Charging port x 1 DC-DC buck converter module x 1 Switch x 1 Motor (200 rpm) x 2 Wire 8-32 lock nut x 15 8-32 x 1/2" bolt x 15 Durable heavy object x 1 Thread/yarn/thin rope x 1

Metal sheet (1 x 5 x 7) Hook (iron sheet) Rubber tubes (10mm long) x 2 Sandpaper Pipe clamp x 1-2 AA Lithium battery x 1 Battery case x 1 Heat shrink tubing Solder 30mm long screw x 1 #8 x 3/4" round head wood screw x 14 Masking tape