Blitz DIY, COMMaster with C30 speed test

[DE WOLF]

I have a commander body, I have master motherboard, I will make me 134V molicell packs.

I have a C38 and C30 motor, if I use the C30 motor , will this make me a Blitz??? This question was on my mind for a long time. 

Finally found me a C30 motor put this motor in the body , this is the result >>> speedtest.    Test on Samsung and molicell batteries,  OOOH no, the same test results as the C38 , how come??? I expected this much faster.  The C30 motor should put out more speed but no. 

What to do?

-Motherboard update? Begode app does not do it for me.

-……

-.…..

This will be the lightest speedwheel 22 kg , body motor battery’s all included.

 

 

 

 

[techyiam]

Interesting project.

Are you able to measure the rpm/volt values for both C38 and C30 setup, and compare?

Edited August 6 by techyiam

[alcatraz]

That's a great idea actually. To pick a motor/frame/board and just customize it.

[alcatraz]

As long as the motor and controller match it should be very reliable.

[alcatraz]

I wish there was a lightweight suspension frame you could drop an RS board and motor into. 

[DE WOLF]

7 hours ago, techyiam said:

Interesting project.

Are you able to measure the rpm/volt values for both C38 and C30 setup, and compare?

I did have ad C38 in stock, that was my first try on 134V, the speed is the same. I was thinking the C30 could. 

 

23 minutes ago, alcatraz said:

I wish there was a lightweight suspension frame you could drop an RS board and motor into. 

Thanks guys for your interest, yes its all possible, old motors new motherboards, new battery’s, the wattage of the motors in old times where low 2000 watt on the C30 motor, 

in the test I see 3000 watt and more output on this motor.  Off course all is possible until the motor wire melt. But there is not a Hugh diverse between the motor since gotway MSX 2018? And Now.  It’s very interesting I am very curious how begode does it , 150 km per hour freespin on the blitz. 

Maybe the motor of the blitz  is really new? C32 I have heared . I have one hope for the COMMaster to add more speed , that is by updating the new firmware on android. The master mobo is a V1/ first I need to look for an android phone. The later versions have this magnet weakening added, that what I need. Now the mobo does not recognise the C30 motor.  

This wheel is made for racing on a flat track , so no suspension is required.  I think , hope this will be better then the heavy wheels ( like my maxter). The effort for breaking and accelerating is Hugh , it draines your energy, that’s why this one needs to light , 22 kg is feather light compared to my maxter is 44 kg. I also hope It will have any torque in the COMMaster ‘s c30   to make my passing possible. Other whIse I switch back to the c38

Yes for the street you need suspension. 

[bpong]

finally some one thinking out of the box !!! nice work de wolf, ... keep on tinkering and you will probably surprise the hell out of us !!!

[bpong]

2 hours ago, alcatraz said:

I wish there was a lightweight suspension frame you could drop an RS board and motor into. 

just need someone to build it...and the suspension is not necessary for the first try...

[Funky]

Dam.. If only some manufacturer could build something like this!!!!

Big wheel - 

No suspension -

Around 25kg!?!?!?!? -

I would immediately buy it. How big battery are you planing to use? And how much range could it have about? 10km?

I would want something like this even for riding on street/sidewalk - i don't want/need suspension. Big diameter wheel is all one needs. Also riding on sidewalk you will be going way slower, at witch point suspension isn't needed.

Edited August 6 by Funky

[Funky]

22 minutes ago, bpong said:

just need someone to build it...and the suspension is not necessary for the first try...

Suspension isn't even needed.. You are racing, not riding a marathon. One could argue even that without suspension - the rider could feel all the ride and perform better.

[Robse]

7 minutes ago, Funky said:

Dam.. If only some manufacturer could build something like this!!!!

Big wheel - 

No suspension -

Around 25kg!?!?!?!? -

I would immediately buy it. How big battery are you planing to use? And how much range could it have about? 10km?

Big problem:  There is only one Funky customer,  but +10000 notfunky

[Funky]

2 minutes ago, Robse said:

Big problem:  There is only one Funky customer,  but +10000 notfunky

Racers aren't @Funkyies, but they are speed nuts.  And they would want/like something like this.

Also yup - it's very sad to want lightweight monster wheel.. And market having none.

Edited August 6 by Funky

[techyiam]

2 hours ago, DE WOLF said:

I did have ad C38 in stock, that was my first try on 134V, the speed is the same. I was thinking the C30 could. 

Did you check to see whether the controller went to the full 100% duty cycle PWM each time in the spin test for both motors?

[DE WOLF]

18 minutes ago, Funky said:

Racers aren't @Funkyies, but they are speed nuts.  And they would want/like something like this.

Also yup - it's very sad to want lightweight monster wheel.. And market having none.

My first wheel a monster, it was only around 35 kg, considered heavy at that time. Now it a laugh. And indeed a wonderful wheel. Good ( special ) motor . 

[DE WOLF]

12 minutes ago, techyiam said:

Did you check to see whether the controller went to the full 100% duty cycle PWM each time in the spin test for both motors?

Yes , each time to 110 and maybe more, it normal. I was trying to get the cutout speed. For a race wheel I look at the PWM and tune it by correcting to 100 % then I can put a save margin of 15% first PWM alarm on 85, second 87 and last on 90 . To prefend a faceplant. 

[Funky]

8 minutes ago, DE WOLF said:

My first wheel a monster, it was only around 35 kg, considered heavy at that time. Now it a laugh. And indeed a wonderful wheel. Good ( special ) motor . 

You are talking about weight in riding scenario.. I'm talking about weight while wheel is off - carrying, etc..  I personally would not care if wheel was 55kg heavy while riding. Doh i would care - if i need to carry that weight daily up/down to third floor and in train, etc many lifts over days use.

It's just perfect that racing and my use case and wants are about the same. Lightweight, but fast wheel. Without suspension, with small battery pack for weight savings. (My commute is very short.) 

[meepmeepmayer]

What a cool project!

I always assumed the board firmware would have to take each wheel's geometry into account, and that you would need the board from the wheel that matches your geometry. But apparently switching between bodies works well!

[DE WOLF]

35 minutes ago, Funky said:

Dam.. If only some manufacturer could build something like this!!!!

Big wheel - 

No suspension -

Around 25kg!?!?!?!? -

I would immediately buy it. How big battery are you planing to use? And how much range could it have about? 10km?

I would want something like this even for riding on street/sidewalk - i don't want/need suspension. Big diameter wheel is all one needs. Also riding on sidewalk you will be going way slower, at witch point suspension isn't needed.

The battery contain 2 packs of 67V , total 1X 134V , no doubles,  I need 96 molicels P42A for that, each 4200 mah . I do not know these calculation. 

But I use master X , BMS ‘s 2, a master X has 4 packs and is 3600WH , so the COMMaster will have 1800 wh. And that’s good, Gives me 2 hour of hard racing. And some spare battery capacity. I don’t thing about range, but my maxter has molicells also , I did 80 km and charge once for and extra 20% battery. So range is about 60 km soft and hard riding. More than good enough for racing. You need some spare power for your safety. 

[DE WOLF]

3 minutes ago, meepmeepmayer said:

What a cool project!

I always assumed the board firmware would have to take each wheel's geometry into account, and that you would need the board from the wheel that matches your geometry. But apparently switching between bodies works well!

Thank you, Yes motor size is in the firmware, once tried to get a mobo from a tesla in an mcm4 , did not work. Once the motor diameter is smaller is a no go. But 16 inch, 19 inch exchanging should work the motor is identical. Big maybe , maybe even 22 inch. Yes I opened my eyes with all these flat boards ( coming from Rs )and the great resemblance in between.  

[Funky]

10 minutes ago, DE WOLF said:

The battery contain 2 packs of 67V , total 1X 134V , no doubles,  I need 96 molicels P42A for that, each 4200 mah . I do not know these calculation. 

But I use master X , BMS ‘s 2, a master X has 4 packs and is 3600WH , so the COMMaster will have 1800 wh. And that’s good, Gives me 2 hour of hard racing. And some spare battery capacity. I don’t thing about range, but my maxter has molicells also , I did 80 km and charge once for and extra 20% battery. So range is about 60 km soft and hard riding. More than good enough for racing. You need some spare power for your safety. 

Dam that's pretty good range! I would be plenty happy for 1 hour hard racing. (I personally would ride around 40kph, maybe 50kph - would get even better range.)

I also don't care about range. Because my 1554Wh wheel last me for 2 weeks. And even after 2 weeks of daily commuting my battery is only around 50%.

 

If this 1800Wh wheel really can be made under 25kg - That's just amazing! I wish manufacturers could learn from you.  

Edited August 6 by Funky