Hi,
What is the best ratio for wheell pulley teeth, i have
Flipsky 6384 190kv @ 60v
Currently :
Motor Pulley Teeth : 10
Wheel Pulley Teeth : 56
Wheel size (mm) : 240
My weight 85 kg
Thanks !
Maybe its just the weak pink loc tite or it got hot while riding.
There isn’t really a “best”, so much as there are things to avoid, and design constraints.
First of all, what’s your desired top speed? That (along with battery voltage and motor KV) determines the gear ratio you need.
As for your current numbers, I think you’re going to have a lot of problems with that 10-tooth pulley. There just aren’t enough teeth on one that small to transfer much power without skipping. That limits your acceleration, and is also really hard on the belts so you’ll have to replace them much more often.
For that ratio (5.6:1), I would recommend a larger wheel pulley of at least 84 teeth, and at least 15 teeth for the motor pulley with an idler, to get more belt wrap and thus more teeth engaged.
If those recommendations aren’t suitable, then you will have to find some other way to make it work, either by using a different battery voltage, or different motor KV.
Voltage, KV, and gear ratio are the only three things that affect top speed, so those are the things you have to change.
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Motor Pulley Teeth : 10
Wheel Pulley Teeth : 56
Wheel size (mm) : 240
My weight 85 kg
Motor : Flipsky 6384 190kv 95A 4000w
Battery : 60v 12ah 50A (waiting)
Vesc : Flipsky 75100
There is no belt, it is of a chain sprocket.
50km/h would be perfect.
Gear ratio 7.1 could work ?
You said “pulley” earlier, which is usually used for belt stuff, so I assumed that was the case.
For chain drive you should be fine with 10t.
You’ll need a ~70t wheel sprocket in that case.
Plug your info into the esk8 calculator available in the top bar and see what makes the numbers you want.
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Ok thank you!
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Is it just me or are the green and yellow not supposed to be flipped? Or maybe it doesnt matter?
The left two are a sensor adapter from TB, the right connector is from a TB motor.
Anyone used both Flipsky TFT V2 and Davega X who can tell me whether it’s worth shelling out the extra $$$s?
The usual layout (red: +5v black:gnd wht:temp blu/grn/ylw:halls) doesn’t care about the order of the hall sensors really at all, at least with VESC and derivatives. Some ebike controllers do want a specific phase/hall order though.
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Oh good to know I was worried these would cause trouble with my vesc but it detects the correct layout itself? (how does it do that?!)
Or do I have to know the pinout of the motor and configure/set up the pins accordingly in the vesc software manually?
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What’s the best way to fill and re-drill truck holes on a deck? My 2021 Haero Bro came with the holes about 4mm off center.
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I use kapton tape to seal off one side, make sure the tip is nice and flat/level, then use a syringe to fill the holes with laminating epoxy
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Thanks! I had an inkling of a feeling the phase order was probably not an issue
Whoa wtf haha did you try messaging the seller?
I’ve had good luck with epoxy putty. Though I think filling it up with regular epoxy would be fine too, or with bits of fiberglass + epoxy. I don’t imagine the truck holes would be misaligned?
The power, ground and temperature sensor have to be in the right place, but the halls can be in any order.
During motor detection, the vesc drives the motor in sensorless mode, and while the motor is spinning it reads the signals from the hall sensors, then does some math to basically figure out the relationship between the motor rotation and the hall sensor signals, and saves that information.
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I would but I already mounted the enclosure and started sanding the deck back to skin it so I cant really return it
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You still can at least contact the seller and make him aware of it so it hopefully doesn’t happen in the future.
Dang that sucks, someone already offered a solution but it’s also a common woodworking technique so there should be pretty good advice on google
see: plugging / filling holes in woodworking
If on flat my top speed is 50kmh and I manage to hit 60 or 70 on a steep hill somehow, can the board still brake? In other words can the motor decelarate/brake at any speed?