Janux-esk8.com Webstore

Janux-esk8 · September 16, 2024, 8:15am

Many of you have known me as Marc (now Janux-esk8) since the day I shared my first motor mount on the DIY forum. While I was absent from the forum, I worked with a business partner to bring my concepts to market. I was not meant to be because the business’s capital was not fully materialized.
For nearly two years, I’ve been working on a full carbon fiber deck and a variety of gear drive systems. I’m quite excited about them, but it’s been a financially exhausting endeavor because everyone in the industry understands that R&D is expensive. Take a look:

Janux carbon fiber longboard deck with built-in battery enclosure features:

Dual high power controllers
Janux custom escs heatsink
Canbus wire
Janux latching Power switch
Thermal conductive pad
Silicone battery compartment underlayment
Silicone cover underlayment
Custom 5mm Jessup Ultragrip with anti-vibration foam made in the USA

Carbon fiber deck specifications:

100% genuine 3K Twill-Weave Pre-Preg Carbon Fiber for maximum strength and durability.
Overall dimensions 11”x44”
Battery compartment 9”x28”
Weight 5.6lbs
*Split-angle technology with 10º and 5º at the front and back

ESC specifications:

High power Dual Solo escs 4-18s Li-ion 16-75.6V operating voltage
- 80A battery current (ea)
- 140A motor current (ea)
- 6kw peak operating wattage
- CAN,HALL,UART,PPM,IMU
- Built in Bluetooth
- On/off feature with any latching switch.
- 10AWG supply cable and xt90 male connector
- 12awg phase cable and 4mm female bullet connectors
- Based on the VESC project

Price: $TBA

jamie · September 16, 2024, 8:16am

Looks awesome @Janux-esk8 congrats on the progress!

Venom121212 · September 16, 2024, 10:33am

Wow that is incredibly clean work!

fujio001 · September 16, 2024, 6:20pm

The deck is long and really wide! I love it!

Will the deck/enclosure be available for the aftermarket community?

Janux-esk8 · September 17, 2024, 12:54am

Soon, will be available for the aftermarket community.

My local testers have been riding it for over 6 months and have reported that the deck is very comfortable on the feet.

JesseM · September 17, 2024, 2:40am

Id like to know a little about the gear drives, can you speak to those?

mighty-need-invader-zim

beadon · September 17, 2024, 7:01am

Really slick. I like everything about the deck / enclosure.

The 2 minor drawbacks I can imagine is how hot the inside of the box gets (1) and the difficulty/cost in manufacturing (2).

There’s the ESC hole to vent heat, is there another kind of heatsink built in to absorb / channel heat elsewhere in case that’s not enough ?
Is it a fully carbon fiber enclosure, or are parts wooden to give the rider some spring-i-ness ?

Looks awesome, keep it up !

andoug · September 17, 2024, 8:10am

@Janux-esk8 can you tell us more about these?

AlexB · September 17, 2024, 10:33am

How deep is the battery compartment - is it designed for single or double stack 21700?

Do the dimensions for the compartment include the space where the ESC is? If so, can you get the dimensions for the compartment space where just the battery would fit?

Janux-esk8 · September 17, 2024, 11:30pm

The depth of the battery compartment is 31mm. It was designed to fit pcb based 21700 battery packs for either 14s5p or 18s4p. Of course non-pcb based pack would also work.

21700 14s5p non-pcb pack

21700 pcb based 14s5p pack

14s5p pcb

Janux-esk8 · September 17, 2024, 11:39pm

Deck is full carbon fiber, including the cover. In addition to the esc heatsink, there are two front and rear plugs that provide airflow to the battery compartment.

fujio001 · September 18, 2024, 12:24am

Nice red color too!

How much concave does the deck have?

Janux-esk8 · September 18, 2024, 12:56am

lol. Between my full-time job and esk8 development and manufacture, my response to the forum tends to be a bit delayed.

Janux “Vortex Drive” is a unique Herringbone gear drives, known for their distinctive V-shaped tooth design. They offer several advantages in mechanical applications. Unlike traditional spur and helical gears, the herringbone configuration features two sets of helical teeth that are mirrored and aligned in a zigzag pattern. This design eliminate axial thrust, reduces vibration, and provides smoother and quieter operation. The interlocking teeth also ensure continuous tooth engagement, leading to improved load distribution and enhanced efficiency.

A little bit about different types of gear:

Spur gears
More efficient at transmitting power because they don’t produce axial thrust. However, they can be noisier than helical gears and aren’t ideal for heavy loads.

Helical gears
Have a higher load-carrying capacity and transmit torque more smoothly than spur gears. However, they can produce additional axial thrust and experience more friction and wear.

Herringbone Gears: Herringbone gears, also known as double helical gears, have teeth that are cut in a “V” shape. The teeth on herringbone gears are helical and form a herringbone pattern. They are designed to cancel out axial thrust forces generated by helical gears. Herringbone gears have a self-centering nature due to their double helical design. This helps to reduce backlash, resulting in smoother and more precise operation.

Janux Vortex Drive is available for purchase in a plug-and-play configuration. The gear ratio is 2.43: 14t drive - 23t idler - 34t driven. The width of the gear is 14mm. The 14t driving gear is manufactured of 17-4 stainless steel and heat treated to H900 condition. The idler and driving gears are machined from a solid block of T6 metal. The idler axle is GR5 titanium. Hanger axle is made of hardened 17-4 stainless steel. The kingpins and washers are GR5 titanium. Wheel adapters are in the Kegel pattern. Wheels may be simply swapped between pneumatic tires and urethane. With 105mm urethane wheels, the clearance between the pavement and the drive is approximately 20mm.

The dual battle-hardened 6485 motors are 150kv, 5200W, and 125A continuous each. These are intended to provide the highest power possible to your electric skateboard. Hand wrapped for maximum copper fill. There isn’t much out there that can compete with the performance of this powerhouse.

Hardened 17-4 stainless gear drive gear

Gear train: 34t-23t-14t

Assemble gear train with Kegel adapter and hardened 17-4 stainless steel axle.

GR5 titanium kingpin and washer

T6 aluminum W-hanger gives the rider with a lower center of gravity.

Every parts of the drive are composed of T6 aluminum, hardened 17-4 stainless steel, and GR5 titanium, NO plasitcs. They were entirely manufactured in-house in San Diego.