Build EP1 electric skateboard gear ratio
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- Опубліковано 5 вер 2024
- speed calc drive.google.c...
This video teaches you the basics of where to start with your electric skateboard build.
We focus on the gear ratio the most important part when starting a build.
Lee P up the great work on making these very very informative videos.
Great Video - you nailed a challenging topic in under 15 minutes. You covered the background, design, and application of specific skills and calculations such that any viewer could have followed along.
EBoards are as personal as any other board. No two are the same just as much as no two riders are the same. Your general videos will help many on the path towards building their dream board. Good job!
Thanks a lot Kenneth! Comments like think give me the motivation to keep going!
Sorry about the audio guys! My external mic does ok on the camera but not on my computer but in editing I increased the gain but for some reason it didn't help!
Hey, huge story short. 90mms, 15/45T , will that work? Or will the belt/pulley be scraping against the floor? I have a Verreal RS.
How can I find out how many poles my motor has?
Poles are how many magnets the motor has, pole pairs are half of that amount. Most outrunners are 14pole and most of the hub motors on the market are higher.
I want to use an alien motor (outrunner brushless 6374 170KV 10s 3200w) is this a good option? Also the m pully has 15 teeth and the hub pulley has 32
It takes much more into designing the gear ration for example there usually are no motors that can go below 190KV and you cant use an 80T HTD5M pulley on a 97mm wheel as It'd be too big and a pulley smaller than 10T on an 8mm shaft as the teeth or the keyway would simply collide with the shaft. now for your weight just pick 83mm wheel with 44T pulley for the wheel and 14T pulley for the motor shaft and limit your speed with your VESC why else would you pay so much for it ?
Yes you can just limit speed, but with out optimising your gearing and motor kv your motor will be drawing more current then is needed. Meaning less range more wear over time. It is the reason boosted can get up the same hill as a raptor with a motor that is 10mm smaller in diameter and has a 10mm shorter stator.
Yeah but what does that have to do with the difference between HTD5 and HTD3 belt?
HTD5M Systems are meant to deliver more power at higher speed in comparison to the HTD3M some of those belt can go up to crazy 50mm pitch
+Derpy Herpy Iv already said this but I'll say it again. Majority of builds are done with a 83mm wheel. So I'm talking about the fact that if using an 80mm wheel your pulley diameter with HTD5 is going to be to big going past 36 tooth. If I wanted to use a 1:3.75 ratio with HTD5 you have to use a 12tooth and a 45tooth pulley. Your 45tooth pulley will have a diameter of 71.59mm then plus your belt thickness x2. Your belts will be dragging on the ground. An HTD3 at the same amount of tooth is only 43mm. Also with a 12tooth pulley you will only have 5 tooth in mesh at most compared to 7 with a 16tooth HTD3 pulley required in the same gear ratio. I know some have big wheels but not every one wants big wheels, big wheel require more torque so an even higher gear ratio for the same hill climbing ability. Yes you can go faster but it's a sacrifice. I personally like 75mm. This video and build log is not for those who already build boards it's for those who are starting.
+Derpy Herpy I could have put every detail into this video but it would be hours not 10mins
ESK8 Support What ever.
HI Jacob, I bought some gear from Enertion, speed controller, motor mount and the 12mm nylon pullry system. I have big Abec 97 mm wheels and need more torque. Do you know where I can get an Abec wheel pulley that has more than 44 teeth? I live in Chicago and the streets are so messed up in certain neighborhoods that I need to use the bigger wheels. Please help, and thanks for sharing the spreadsheet.
There are none, but you can always design one your self.
If I wanted to have a pretty decent amount of torque and a pretty high top speed (45kph) would I be able to do it? I weigh 115 pounds (52 kilos).
Well 3 years later I can tell you that you could build a board that easily takes you to 60 kph with torque that will throw you off
What happens when I increase my gear ratio from 2.7 to about 3.3 with HDT5?
I have big wheels and need more torque...
You simply get more torque and reduce speed...
I don't understand why is he's talking about a limit of 2.7 with HDT5. You can get nearly the same gear ratio with HTD3 and HDT5. Ok, your motor pully is limited to about 12t but that should not make a big difference... correct me if I'm wrong.
+E-Boarding Magritte of builds are done with a 83mm wheel. So I'm talking about the fact that if using an 80mm wheel your pulley diameter with HTD5 is going to be to big going past 36 tooth.
If I wanted to use a 1:3.75 ratio with HTD5 you have to use a 12tooth and a 45tooth pulley. Your 45tooth pulley will have a diameter of 71.59mm then plus your belt thickness x2. Your belts will be dragging on the ground. An HTD3 at the same amount of tooth is only 43mm. Also with a 12tooth pulley you will only have 5 tooth in mesh at most compared to 7 with a 16tooth HTD3 pulley required in the same gear ratio.
I know that you have big wheels but not every one wants big wheels. I personally like 75mm.
+ESK8 Support sorry I meant majority
please add a warning well before you show your knee please. i dont want to recall my own injuries...
sorry, but that's nobody's problem xd i had a 3ple fracture that put me into a coma on april, but this is internet on an xtreme sport. Anyways, hope your injuries are better