PROJ.

Endeavour

An all-terrain, long-range, high-speed agile electric mountainboard

Project Endeavour is my 2nd electric longboard project. It is like the cooler elder brother to the lil' rascal that is the Ramshackle. In contrast to the Ramshackle, which was more R&D and experimentation-focused, the Endeavour was made to be a performance board that would satisfy my thirst for adventure.

The Endeavour is made to be durable and agile, and thus far it has yet to let me down. There is more to see of it than there is to say, so I'll leave it at that. Enjoy!

Design Overview

(Click render to toggle exploded view)

The Endeavour features Trampa's 35° HolyPro Mountainboard deck: a carbon-fibre composite deck with the unique feature of being flexible without expense on rigidity and durability, serving as an integrated suspension system for the mountainboard. The off-brand trucks and motor mounts were purchased from Taobao, and the fenders were designed and made out of 5052-H32 aluminium sheet-metal. The wheels are 200x50 pneumatic wheels, with the rear wheels driven by HTD pulley systems. A pair of torchlights mounted by 3D-printed brackets at the front provide lighting in the dark.

The battery is a 10S5P 18650 Li-ion pack ensconced in an immitation Pelican case, connected to the electronics box at the rear via a corrugated tube conduit ending in an XLR 3-pin IP44 plug-and-socket interface. The electronics box is butchered from an immitation Lock-Lock box, featuring a battery read-out screen toggled by a halo-light button, and a small low-voltage power toggle-switch on the side that controls the high-voltage circuit through a 42V automotive contactor. 6 corrugated tubes running the motor cables connect between the electronics box and 2 3D-printed cable routers, one on each rear fender, which in turn connect to their respective 6374 off-brand motors, also from Taobao.

Key Features

35km Range

40km/h Top-Speed

30% Gradient

1m Turning Radius

Mobility

Despite its size, the Endeavour is capable of turning radii as small as 1m, making manouevring snatch turns a breeze. The overall (relatively) lightweight construction also allows the daring to make sizeable jumps, enabling its rider to leap small obstacles.

Cross-country Ready

The Endeavour boasts a whopping 35km in range on a single charge, but the board isn't the only thing that needs to last the ride: the integrated suspension of the flexible deck provides a comfortable buffer between trecherous ground and the rider's legs, allowing the rider to enjoy the ride without suffering the muscle soreness from vigorous deck vibrations.

All sensitive electronics are well shielded from the elements, with the only exception being the motors, which are already able to survive a good watering-down as-is anyway.

EZ-Plug, EZ-Charge

User experience isn't limited to just the ride itself--ease of charging plays a big part in making the overall experience a pleasant one. The battery pack is designed to be easily removeable so that the board need not be dragged to a nearby power socket whenever it's power-starved. An XLR 3-pin IP44 connector is used to ensure that the battery can be securely connected to the electronics box during punishing rides while remaining easy to connect and disconnect.