Hi Guyes, this forum is giving me so much great info, thanks. So, I’m as one of the many, an all time electronic noop that took a project building a skateboard, Made this topic along with my notebook as I’m learning more and more of this world so you guyes can now follow along and look where I am going. This topic will be updated daily as I’m learning and by my self and you guyes
Thank you for taking a look and following me along!
Top speed would be around 20-25 mp/h (32-40 km/h)
A great moderate acceleration/torque for when going from red to green light along bikes and cars. With that torque I want my skateboard to go without needing to push off the gound. But I’m not going to ride the San Francisco streets, most of the streets I’m at in the city is flat as a pancake with two or three hills with a 10-15% rise. Maybe too long explanation about my desired torque, but I hope it makes sense
The range should be 10-15 km (6-10 miles)
The wheel size would be 83mm the lowest diameter in the recomended 80-90mm for having the quickest acceleration.
The wheel and motor pulley that fits would be these DRIVETRAIN Wheel pulley With: 15mm Teeth: 36 Motor pulley Bore: 8mm Theet: 15 Width: 15mm Drive belt Lenght: 265mm Teeth: 53 Fit with 15/36 pulleys Width: 15mm
Motor mount I found this TorqueBoards v4 Bolt On Motor Mount that fits most motors in 63mm and 50mm of diameter. I found this Turnigy Skateboard Conversion Kit Spare Parts - Motor Mount from HOBBY KING :mone €7.26
Link to complete set 80mm
MOTOR I’m joggeling with a lot of motors in my mind, I have a link to them followed by a thought.
KV is the number of rotation of the motor per voltage applied. Usually the higher the KV the faster the motor, and the lower the KV the more torque it can produce.
Motor suggestions 1.Turnigy Aerodrive SK3 - 6364-213kv Brushless Outrunner Motor
3.Turnigy Aerodrive SK3 - 6364-190kv Brushless Outrunner Motor I’m going with this one €73.98
There is such a small difference in the motor and i should just make a quick choice
BATTERY This part have I learned so much about, and still can’t get my head around
Volt - How strong electricity is puched Amp - How much electricity is going buy Watts - How much enegy is consumed per chunk of time Ah - Means longer range mAh - A unit of charge (how much electriciry can be in the battery) (how long it will provide the power) C - is the discharge rate (how quickly it can provide the power)
my battle between the The Lipo (Lithium polymer) VS Li-ion (Lithium ion) have concluted:
Lipo Cheap (in the shourt term) but understandeble and i thing I would need a 6S and something and 22V (volt) battery or something. I don’t know.
Battery sugestions for Lipo 1.ZIPPY Flightmax 8000mAh 3S1P 30C Lipo Pack
2.ZIPPY Compact 5000mAh 5S 25C Lipo Pack Seames nice but is too bit, looking for a flatter one
Li-ion Battery sugestions Link to understanding the S and P I’ have no pack solution but have read that SAMSUNG 30q cells from ru.nkon.nl but witch one and how many is a myth for me. If I knew how many Li-ions I sould get to have the same as my Lipo battery suggestions above. For a longer use of battery and the safty of not having Lipo battery explode. Or find a good battery pack with a battery management system (BMS)
VESC Unik control HW 4.12 Is expensive but seems like a god choice. 124,17€
Electric skateboard Speed Controller (Maytech) Cheap, but not the best quality
CONTROLLER Enertion Nano-X 2.4Ghz Controller $116.00 The design and quality looks great but i prizy The only one I like and pretty sure to go with that.
can see that it all runs up in prize, have not calculated it all yes, but it may be cheaper to buy a boosted board
I HAVE A CHECK LIST
To all my 6 KEY ELEMENTS
1. Wheel pulley
2. Motor pulley
3. Drive belt
Lenght: 265mm Teeth: 53 Fit with 15/36 pulleys 4. Motor Turnigy Aerodrive SK3 - 6374-192kv Brushless Outrunner Motor 5. Wheel 83mm 6. Battery Don’t know What Li-ion battery pack with a BMS and on/off switch would you take? or should I make it my self
To all my 6 VARIABLS V1. Gearing Reduction Ratio - I know what gear I want but what GRR number they make. V2. Motor KV - 190kv V3. Battery Voltage - ? V4. Wheel diameter - 83mm V5. Desired top speed - 20-25 mp/h (32-40 km/h) V6. Desired range - 10-15 km (6-10 miles)
Is it all too much info in one topic?, this is my first post, let my know how I can make this better. This is again just a way for me to get an overview. Feel free to comment
A gear ratio of 2:1 means (motor rotation:wheel rotation)
As in every time the motor has made 2 turns, the wheel has made one turn.
SK3 is just the brand
6364 is masuremenets of the motor (63mm x 64mm)
190kv means RPMS (Rotations per minute) per volt
T18 is mentiont in lower in the description of the motors site same link as above. what T18 gives you is the lower the T number is the higher the RPM you can expect from the motor
P14 is poles (magnets) insode the motor
See you ! じゃあね！