Looking for criticism on first build, parts list in full is below, otherwise, main objectives / history so far into the build…
Goals
- Able to charge with my laptop charger (USB-C) that I will always have with me anyways.
- Fast enough to be exiting, no need for speed racer type beat, ~30mph? not sure.
- Enough torque to climb ~30deg hills ; In Texas, so lotttts of flat but some random steep hills.
- At least 10 miles range.
Here is my esk8Calc link, should have all correct values for what I’m looking for-
Now into the interesting bits
History
Attempted to drill out 70mm wheels that came with the board, didn’t work out, as seen below.
Attempted to shave trucks into workable shape, didnt work out, 3d printed mount kept slipping.
Conceded to buying wheels and trucks that would be a little more plug and play, hence tb110s and tb 180mms.
Current layout (Sorry for background, rugs more distracting than I thought)
Should be getting wheels and trucks in the next couple days. Will probably tuper ware everything for testing, then come up with a more permanent solution. Still working on usb-c solution… for the time being, i have sourced a cheap 200w laptop charger to double as a charger and for testing the boost converter.
Influences
The guys below all greatly influenced the main objectives of this board.
@mutantbass - LIPO Charge only Smart BMS wiring Guide - DIY Solutions - esk8.news forums
- Using bms as charge only solution, because using lipos, and also lower amp output = cheaper bms
@mynamesmatt - "The Taipan" HSC Major | SK3-6364 190Kv | 16/36 | 10S 8000mah LiPo w 60A BMS | TB VESC | TB 90mm Abec Clones | TB Caliber Trucks | 3D Printed Enclosure | USB Phone Charging | Individual Voltmeters | 4A Fast Charging |
- Influenced idea of using boost and or buck converters to enable use of lower power chargers, and or to charge phones or remotes from the board it self
@kevingraehl - Charge skateboard with MacBook charger. Done - esk8.news forums
- Also influenced charging via USB-C
Parts list below
Mechanical
Deck - Amazon special - https://www.amazon.com/gp/product/B07JDDM3GX/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&th=1
Trucks - TB 180MM - TorqueBoards 180mm Trucks – DIY Electric Skateboard
Wheels - TB110 (Blem) - 110mm TORQUE Wheels (BLEM) – DIY Electric Skateboard
Bearings - Bones Reds - https://www.amazon.com/gp/product/B0798WGCB1/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1
Next couple components I’ve planed on 3d printing, have back up that I’m ready to order if they dont work out (DickyHo for all, still unsure about short vs long motor mount though:
or
)
Motor mount - Thingaverse special - Electric skateboard motor mount - Caliber trucks by SolidGeek - Thingiverse
HTD5 15 Tooth, Motor Pulley - Thingaverse special - Parametric pulley - lots of tooth profiles by droftarts - Thingiverse
HTD5 39 Tooth, Wheel Pulley - Thingaverse special - 39t Pulley for TB110 Really Big Wheels by studio-napkin - Thingiverse
Belt - With current motor mount, looks like 290m-5m-15mm belt ; with dickyho, ~300 for short mount, ~335 for long -
Electronics
Motor- Ebay special - 2900W Electric Skateboard Longboard C6374 Efficience Brushless Motor 170KV | eBay
Batteries - 3x (SMC, 4s, 7.7AH, ~40c) - True Spec Extreme Graphene V2 Flight 14.8V-7700mAh-40C-BVM
VESC - Flipsky 4.2 (got mine on Alibaba though) - Most compact VESC4 DIY electric skateboard | Mini FSESC4.20 | Flipsky – FLIPSKY
Remote - Flipsky vx1 - 2.4Ghz Remote VX1 for diy Electric skateboard | Flipsky VESC remote – FLIPSKY
BMS- Lithium Battery PCB, 12s, 20A (Discharge only) - 10S 11S 12S 13S 14S 15S 36V 48V 58.8V 60V smart BMS with Bluetooth function UART communication 20A to 60A constant current – LLT POWER ELECTRONIC
Charger, This will be the charger left at home for faster chargin, purpose of getting a boost converter in the mix is so I can use my actual laptops USB-C charger which is small (65W), but i will also already be carrying it- 200W 19.5V ~10A Laptop charger - Origin HP 200W AC Adapter Power Supply for HP laptops and desktops smart pin | eBay
With Ebay special boost converter -https://www.amazon.com/gp/product/B09PHRHDYZ/ref=ppx_yo_dt_b_asin_title_o04_s01?ie=UTF8&psc=1