Need Boosted Board Parts, company wont provide them to me!

[afreeman1984]

Hello everyone,

I have 300 miles on my boosted board. im on my 3rd set of wheels, numerous belt changes, and now my board no longer has that smooth quiet ride it used to. My acceleration has declines as well as my max distance....

Due to this, i started poking around the board, I found that the brushless motor wrappings are beginning to fray on the inside. I want to replace the motors. I contacted Boosted Board to get new motors and they insist that my board has to be returned to them to fix. I dont want to return my board because i have done some mods on it that i am considering turning into products.... could someone give me the specs for the motors they use or point me in a direction to find replacements of similar spec?

Thanks!

 

[cmatson]

I dont want to return my board because i have done some mods on it that i am considering turning into products..

not trying to change the thread's goal, but what kind of mods are we talking about :lol:

As for the motors though, I'm not sure it will be very easy to find replacements.. If I remember correctly, they are sensored and not a commonly found diameter.

 

[torqueboards]

Post some photos of the motor and we can probably figure it out for you.

 

[chaka]

Sounds like your cells are starting to fade. Those little packs have a hard life, still surprised to see them show their age after 50 charge cycles.

 

[afreeman1984]

the mod were talking about is a metal skid plate which is affixed to the rear truck and covers the moving parts.

My understanding is the battery operates at 40 volts.... so 1000 watt motor.... 1000/40 = 25 amp motor?! Are the wires going to the motor 12 guage or bigger? im not sure yet... but i assume they have to be if that calculation is correct.

The motor operates on a sensor? Im not sure i understand how that works (maybe on a feedback loop for ensuring you dont go over the 22 mph max?!)

 

[afreeman1984]

Im not sure if that sensor is really important in motor selection as the logic in the controller i would assume directs the sensor and motor. The motor and the sensor are not interfacing with each other directly are they?

 

[ryerson2019]

Your BLDC motor is sensored.

A sensored motor detects the magnetic fields generated by the coil to determine the optimal firing rate/power distribution to the coils. I suspect that Boosted uses Delta windings for speed, so you should expect to find a large number of cables going from the motor to the board. I bring this up because a proprietary company like Boosted that is trying to regulate its product and protect it from user modification has probably programmed the ESC to not only operate in the sensored state but only if the cables are correctly connected.

1000w BLDC motors (35mm) are easily around 150USD, so you might want to consider sending it in and saving yourself the misery of a complicated and unhappy repair.

Just my 2¢.

 

[afreeman1984]

I prefer to just get my replacement parts and fix myself. if the company would just give me the parts that would be the best solution.... otherwise ill hack this thing to be better than it was stock.

 

[okp]

yes, but unfortunately that not the business choice of the company (which I can understand as it may expose warranty for many other purposes).

if you want freedom, just go DIY.

 

[ecycler]

Sounds like you will be better off building your own board. Reverse engineering their motors/controllers is a big waste of time.

 

[chaka]

You can replace all the motors you want but it wont fix your battery. I have a motor with several frayed windings and it still performs like new. Loss of power and range is specifically related to a fading battery pack.

 

[thepronghorn]

If you really want to replace the motors, you need to measure their diameter and length and shaft diameter and find motors of the same size. A good place to start looking would be hobbyking. If the motors are indeed sensored, you're going to have to install hall sensors yourself either internally or externally. Honestly this sounds like a project for someone with a little more experience with brushless motors. That being said, there's a lot of good information on this forum and elsewhere, so start reading.

 

[LEVer]

There are tons of sensored motors in Alibaba. Your problem would be to figure out which combination of sensor wires and phase wires go to the controller. It's no fun. :?

 

[ecycler]

Basically the group consensus regarding the motors is that 'if you have to ask... you have a long hard road ahead of you if you try.' There are many aspects to reverse engineering their motors and the hall sensors and wiring and controllers, but it does sound like your main issue is just that you have ragged the battery out.

Pull that thing out first and measure the strings to see how out of balance they are. Let us know what readings you get. It is not hard to rig a new battery to that thing.