Hello,
update: see my last post - looking for a 3d cad model of the mbs matrix trucks.
thank you.
------------------------
been lurking around the forum for quite some time, and after succesfuly building my first e-mountainboard - I have a few questions for the second improved board components.
a bit of history, the old board was an mbs core 90, with a dual sk3-6364-190kv, dual HK150A, and a 6s 5000mah 20c lipo. gear ratio was 11-60.
I used to get around 9km per battery, and about 23kmh top speed.(using rc controller, with the wii nunchuck it was around 26kmh)
added some pictures, a bit ashamed of my manufacturing skills and tools...but the end result was a nice, ridable board.
the new board is a mbs comp 95 - which is a great upgrade...(a bit longer board, mbs matrix trucks), already ordered 10t 8mm bore pinion and 62t sprockets for #25 chain (a bit faster gear ratio)
what I want to achive is a bit fater board (38-30 kmh max speed), and as light as possible with dual setup, of course the cheaper the better
but I dont mind spending a few extra $ for a better end result.
I have a dillema about which electric componnents to choose:
1. I feel that the dual 6364 was very powerful, and maybe I can get the same (almost) end result with a ligther/smaller motor - such as the sk3-6354-215kv. I tried to find reference to this motor in the forum - had one hit of someone using it-but was with added edf cooling which I dont really want to get to.
can anyone comment on this motor? will it be suitable to my needs? do you have any other suggestion?
2. esc - I used the HK150A esc which was great but is huge and it takes up the place for my second batt.
I was thinking abut one of these two:
2.1 http://hobbyking.com/hobbyking/store/__33984__Turnigy_Trackstar_150A_GenII_1_8th_Scale_Sensored_Brushless_Car_ESC_PC_Programmable.html
its a bit smaller thank the HK150A - and they say that the throttle curve can be adjusted which I think is a GREAT feature - anyone tried it?, the esc got some mixed reviews and I wanted to know if anyone got it and can comment on it, how are the breaks, does it work well with lower kv motors etc.
2.2 alien 120A/150A esc - I relly like the low profile and support from Bruno - he is great!, seems like breakng now is in par with the car esc's, I wanted to know if the throttle curve is configurable (graph changes) as turnigy claim in the first option - from the manual it seems like there is just an option for liniar, log, or exp curve, no parameters change - but i guess it should be configured for ev setup so its good. the drawback of this option is the price. (quite higher than the 2.1 option)
3. another option I am cosidering is the alien power combo's, Bruno suggested I take the 6KW option but if I can get away with a smaller motor (like a 63654) I can save over 0.5kg
I thought maybe the 4KW twin option would fit, but i'm afraid that a 50mm 270kv motor wont be good enough - especially with my current gear ratio.
if you got to this line - thank you for your patience, sorry for some typo's english isn't my native language.
any suggestion/help will be appriciated.
pics of the last board:
thanks!
update: see my last post - looking for a 3d cad model of the mbs matrix trucks.
thank you.
------------------------
been lurking around the forum for quite some time, and after succesfuly building my first e-mountainboard - I have a few questions for the second improved board components.
a bit of history, the old board was an mbs core 90, with a dual sk3-6364-190kv, dual HK150A, and a 6s 5000mah 20c lipo. gear ratio was 11-60.
I used to get around 9km per battery, and about 23kmh top speed.(using rc controller, with the wii nunchuck it was around 26kmh)
added some pictures, a bit ashamed of my manufacturing skills and tools...but the end result was a nice, ridable board.
the new board is a mbs comp 95 - which is a great upgrade...(a bit longer board, mbs matrix trucks), already ordered 10t 8mm bore pinion and 62t sprockets for #25 chain (a bit faster gear ratio)
what I want to achive is a bit fater board (38-30 kmh max speed), and as light as possible with dual setup, of course the cheaper the better
but I dont mind spending a few extra $ for a better end result.I have a dillema about which electric componnents to choose:
1. I feel that the dual 6364 was very powerful, and maybe I can get the same (almost) end result with a ligther/smaller motor - such as the sk3-6354-215kv. I tried to find reference to this motor in the forum - had one hit of someone using it-but was with added edf cooling which I dont really want to get to.
can anyone comment on this motor? will it be suitable to my needs? do you have any other suggestion?
2. esc - I used the HK150A esc which was great but is huge and it takes up the place for my second batt.
I was thinking abut one of these two:
2.1 http://hobbyking.com/hobbyking/store/__33984__Turnigy_Trackstar_150A_GenII_1_8th_Scale_Sensored_Brushless_Car_ESC_PC_Programmable.html
its a bit smaller thank the HK150A - and they say that the throttle curve can be adjusted which I think is a GREAT feature - anyone tried it?, the esc got some mixed reviews and I wanted to know if anyone got it and can comment on it, how are the breaks, does it work well with lower kv motors etc.
2.2 alien 120A/150A esc - I relly like the low profile and support from Bruno - he is great!, seems like breakng now is in par with the car esc's, I wanted to know if the throttle curve is configurable (graph changes) as turnigy claim in the first option - from the manual it seems like there is just an option for liniar, log, or exp curve, no parameters change - but i guess it should be configured for ev setup so its good. the drawback of this option is the price. (quite higher than the 2.1 option)
3. another option I am cosidering is the alien power combo's, Bruno suggested I take the 6KW option but if I can get away with a smaller motor (like a 63654) I can save over 0.5kg
I thought maybe the 4KW twin option would fit, but i'm afraid that a 50mm 270kv motor wont be good enough - especially with my current gear ratio.
if you got to this line - thank you for your patience, sorry for some typo's english isn't my native language.
any suggestion/help will be appriciated.
pics of the last board:
thanks!
