All-Terrain SUP & Kayak Cart

All-Terrain SUP Cart Using a Skateboard Truck

This project converts a standard skateboard truck into a practical transport cart for SUP boards, kayaks and beach equipment.

Instead of designing the entire axle and steering mechanism from scratch, the cart uses a readily available skateboard truck as its mechanical base. The original skateboard wheels are replaced with large 220x40 mm 3D-printed wheels featuring flexible TPU tires.

A custom 3D-printed mounting cradle connects the skateboard truck to the underside of the SUP, creating a compact, repairable and easy-to-build transport system.

Main features

• Uses a standard skateboard truck as the axle assembly

• Large 220 mm 3D-printed wheels

• Replaceable TPU 95A tires

• Standard skateboard bearings

• Custom mounting cradle for SUP boards

• Modular and easily repairable construction

• No pneumatic tires or punctures

• Individual components can be reprinted when required

Required non-printed components

• 1 complete skateboard truck

• Standard skateboard bearings

• 4 Φ5mm L50mm bolts and nuts 

Compatibility may vary between skateboard truck models, so check the dimensions of your truck before printing all components.

Recommended materials

• Tires: TPU 95A

• Wheels: PETG

• SUP cradle and structural components: PETG recommended

(PLA can be used for prototypes, but PETG is recommended for heat resistance.)

Suggested TPU tire settings

• 0.6 mm nozzle

• 0.36 mm layer height

• 3 walls

• 10–12% Gyroid infill

• 220 °C nozzle temperature

• 50 °C build plate temperature

• 20–25 mm/s printing speed

Wheels

Suggested setting 

• 0.4 mm nozzle

• Infill Pattern: Gyroid

• Infill: 15%

• Wall: 4

• Top/Bottom Layers: 5-6

• Wall Thickness: 1,6 mm

Truck To Sup 

Suggested setting 

• 0.4 mm nozzle

• Infill Pattern: Gyroid

• Infill: 60% at least 

• Wall: 2

• Top/Bottom Layers: 5-6

If you print it, I would love to see your make and hear your feedback!