Iowa State Industrial Design
Capstone Project

NIMBL

NIMBL

PROJECT OBJECTIVE

To create a compromise free mobility solution for college and urban city residents.

OPPORTUNITY SPACE

ELECTRIC LONGBOARDS

Estimated Market Growth

2025

3.51

Billion

2032

4.52

Billion

How many people ESK8?

4-7

Million Daily Users

EXISTING PRODUCTS

Linky

No easy method to carry

Short range

No locking mechanism

Small foot space

Board up

Large when folded

Short range

Small Footspace

Uncomfortable handle

Market Opportunity

All existing products have wheel well cut outs to prevent the wheel from hitting the deck. With foldable longboards, 5 - 8 inches of footpace is used for these wells.

Ideation

Exploring Shape

Understanding Interaction

Theorizing Mechanisms

Color and shape

The most imperative part of this process is the CAD model, where the idea goes from a concept to a manufacturable design. I use my favorite software Solidworks to make my design a reality

Final Concept.

Locking Handle

The handle slides up when picked up by the user, disengaging the locking pins and allowing the board to fold.

Battery

25

mph

18

mi range

1

hr full charge

Expanding Wheel Wells

By unfolding the board, the wheel assembly extends, creating the wheel wells needed. This allows maximum portability without sacrificing total size when expanded.

Board Fabrication

Cut the rough shape of the tops with a band saw

Sand board into final shape

Rough cut metal for CNC Machining

CNC Machining all metal parts

Fabrication Materials

ABS PLASTIC

Strong, cheap plastic common in injection molding

6061 ALUMINUM

Lightweight easy to machine metal

4140 STEEL

Engineering grade steel used in automotive and aerospace industries.

MAPLE WOOD

Flexible, strong wood common in longboard construction

Metal Part Fabrication

CNC machining uses sharp carbide endmills to slowly chip away at material to create the end part.

Over 25 parts were made out of 6061 aluminum and 4140 steel to create all of the load bearing parts.

Electronic's Fabrication

Assembly

Final Prototype