Mark_A_W's DH Team/MAC Shanghai/64v Headway build

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Herrsprocket   100 W

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Re: Mark_A_W's DH Team/MAC Shanghai/64v Headway build

Post by Herrsprocket » Apr 18 2011 1:48am

Hi Mark,

Have you had a chance to do the "1K resistor fix" a shot? Just curious if you did and if it helped the stutter issue.

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Mark_A_W   100 kW

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Re: Mark_A_W's DH Team/MAC Shanghai/64v Headway build

Post by Mark_A_W » Apr 18 2011 3:24am

No, I'd have to pull the whole bike apart.

The current issue is occasional "missed starts", not stutter
Under construction: Giant DH Team, MAC Shanghai, Infineon 18 FET controller, 64v Headway battery. LINK!!

Retired: Kona Dawg Dually + Bomber Triple Clamp forks with Nine Continents front hub motor, 48v 10Ah Headway LiFePO4 Pack + 12v 10Ah Headway LiFePO4 booster pack (nominal 64v).

Powered by the sun :)

Dead: Jamis Dakar frame, Mongoose Pro Downhill frame, cooked Lipo booster pack....and various other bits and pieces...

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Re: Mark_A_W's DH Team/MAC Shanghai/64v Headway build

Post by neptronix » Apr 18 2011 4:00am

Resistor fix ?? ??

BTW, at 56v nominal i get the missed start thing too on my 9FET. Always happens from a dead stop with some incline.
Never happens on 38v nominal.
My first major build: 8T MAC motor on a Trek 4500.
The new all-arounder: Leafmotor 1500w on a Turner O2 full suspension.
The wheelie machine: 20" Rear Magic Pie II on a Trek 4300 MTB

"The best time to plant a tree was 20 years ago. The second best time is now."- Chinese Proverb

Herrsprocket   100 W

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Re: Mark_A_W's DH Team/MAC Shanghai/64v Headway build

Post by Herrsprocket » Apr 18 2011 1:00pm

Hey thanks Mark.

Just so'z I don't have to back through the whole thread again, does the "missed start" anomaly go away or is it slightly alleviated if you do just a bit of pedaling when you start out? Thanks for the refresher. :)

Oh, I was thinking of the shuttering effect you had a long time ago, at low speeds, and you addressed that by programming more phase amps.

Tom

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Re: Mark_A_W's DH Team/MAC Shanghai/64v Headway build

Post by The Stig » Apr 20 2011 6:21am

Gentlemen, and Ladies,

What is the max phase current I should use with my MAC shanghai? Considering I will be climbing very long, very steep hills. This is a 2wd A2B ebike that has a cute 108 motor(9:1 planetary gears) in the front run by a 6fet lyen and all powered by the two stock LiMn batteries.

I will be tweaking the phase current of my lyen 9-fet along with battery current(Which had at 40A) and throttle settings. Is there any way to change the throttle curve and still have 120% throttle available? Lyen said there are two settings I can play with as I don't have a 3speed switch and those are "speed limit" and "speed 2"

I've attached my controller ".asv" Profile for anyone who can take at look at the 9 fet, and maybe the 6 fet too.
Attachments
9 FET A2B.zip
Rear Mac Shanghai controller Profile. Just unzip.
(259 Bytes) Downloaded 121 times
6 FET A2B.zip
Front Cute 108 controller Profile.
(258 Bytes) Downloaded 55 times

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Re: Mark_A_W's DH Team/MAC Shanghai/64v Headway build

Post by neptronix » Apr 20 2011 1:25pm

Cell_man set my motor stock to 30amp batt/80amp phase, seems to work for me. Does about 40 amps constant up steep hills, which, seems to be just on the threshold of safety for the windings / phase wires.
My first major build: 8T MAC motor on a Trek 4500.
The new all-arounder: Leafmotor 1500w on a Turner O2 full suspension.
The wheelie machine: 20" Rear Magic Pie II on a Trek 4300 MTB

"The best time to plant a tree was 20 years ago. The second best time is now."- Chinese Proverb

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Mark_A_W   100 kW

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Re: Mark_A_W's DH Team/MAC Shanghai/64v Headway build

Post by Mark_A_W » May 01 2011 9:33pm

Well, another day another failure.


The BMC V3 freewheel failed, so I got it welded.

Then the Keyway failed, so I got the freewheel welded to the axle.

But a welded freewheel puts enormous shock loads on the gears, as they never get a break - when you roll down a gutter, the gears get the full force of that bump.


So the gears lasted 20k's. :(


The MAC motor is now officially DEAD, and I'm now in the market for a direct drive motor (with a big axle).

On the upside, my Tab Welder for making packs out of Headway cells is working, just need to actually make a pack now. I guess I have some time....
Under construction: Giant DH Team, MAC Shanghai, Infineon 18 FET controller, 64v Headway battery. LINK!!

Retired: Kona Dawg Dually + Bomber Triple Clamp forks with Nine Continents front hub motor, 48v 10Ah Headway LiFePO4 Pack + 12v 10Ah Headway LiFePO4 booster pack (nominal 64v).

Powered by the sun :)

Dead: Jamis Dakar frame, Mongoose Pro Downhill frame, cooked Lipo booster pack....and various other bits and pieces...

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gensem   100 kW

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Re: Mark_A_W's DH Team/MAC Shanghai/64v Headway build

Post by gensem » May 01 2011 9:48pm

Mark when you get the DD up and running I would be really glad if you could make a comparison.

Regards
Justin we really appreciate what you did!

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Re: Mark_A_W's DH Team/MAC Shanghai/64v Headway build

Post by adrian_sm » May 01 2011 10:15pm

Mark_A_W wrote: The MAC motor is now officially DEAD, and I'm now in the market for a direct drive motor (with a big axle).
Bugger. So what DD hub were you thinking? One of the new Crystalyte's?
Build #1 ~28kg ~ 700w Avanti Hardtail Crystalyte 408, 48V10Ah Headway. ~5500 kms to date. (retired)
Build #2 ~30kg ~2000w Giant AC Dually Crystalyte 408, 48V10Ah Headway + 6s10Ah LiPo = 70V. ~15000 kms to date [SOLD]
Build #3 ~13kg ~2000w Commuter Booster <1kg Friction Drive in Beta testing (www.commuterbooster.com)
Build #??? ~21kg ~1500w Adrian's Bafang BPM Hardtail MTB Bafang BPM code12, 15s LiPo, ~40kph, ~30kms

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gensem   100 kW

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Re: Mark_A_W's DH Team/MAC Shanghai/64v Headway build

Post by gensem » May 01 2011 10:21pm

im gessing he ll try the new Hx series
Justin we really appreciate what you did!

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full-throttle   10 MW

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Re: Mark_A_W's DH Team/MAC Shanghai/64v Headway build

Post by full-throttle » May 01 2011 11:14pm

Mark_A_W wrote:The MAC motor is now officially DEAD
Not good..

What did you think of HS3540? I averaged 28Whr/km for the 2 days I rode it to work, which is the same as what you were averaging using MAC.

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BiGH   100 kW

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Re: Mark_A_W's DH Team/MAC Shanghai/64v Headway build

Post by BiGH » May 09 2011 1:12am

Hey Mark,

Sorry to hear about your drive failure. This is the reason I went to the 5304 and stayed there, its heavy, its brutish, but at the end of the day it survives pretty much everything I throw at it (at 48v), however I was very tempted by the lighter weight of the MAC and the BMC.


edit: PS I love the box you made - I'm just about to start designing one for my bike (which is currently off the road with pack failure) - rebuilding it any then will be making a fibreglass box too :)


Take Care,
Haydon

Mark_A_W wrote:Well, another day another failure.


The BMC V3 freewheel failed, so I got it welded.

Then the Keyway failed, so I got the freewheel welded to the axle.

But a welded freewheel puts enormous shock loads on the gears, as they never get a break - when you roll down a gutter, the gears get the full force of that bump.


So the gears lasted 20k's. :(


The MAC motor is now officially DEAD, and I'm now in the market for a direct drive motor (with a big axle).

On the upside, my Tab Welder for making packs out of Headway cells is working, just need to actually make a pack now. I guess I have some time....
Bike / Motor: Electric specalized rock hopper with Crystalyte 504 / 26"
Batt: Yesa 72v (36v*2) (getting 6.7ah) LiFEPO4 in a Topeak bag. OR 1x eMTB 48v 20ah pack (straps to frame) -depending on range requirements.
Controller: Unmodified 48a digital with 4110 Fets
Current Prob: Bike is in parts getting painted / drying / testing replacement BMS
Trail of Dead Parts:Avanti Frame, 408 motor *melted*, 35a controller - i broke by trying to mod it 2nd controller - blew it up.
My Ride

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Mark_A_W   100 kW

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Re: Mark_A_W's DH Team/MAC Shanghai/64v Headway build

Post by Mark_A_W » May 09 2011 1:49am

Nah, X5 is too heavy - I want to be able to lift the bike.

I'm thinking about a HS3540 or whatever the new one is called.
Under construction: Giant DH Team, MAC Shanghai, Infineon 18 FET controller, 64v Headway battery. LINK!!

Retired: Kona Dawg Dually + Bomber Triple Clamp forks with Nine Continents front hub motor, 48v 10Ah Headway LiFePO4 Pack + 12v 10Ah Headway LiFePO4 booster pack (nominal 64v).

Powered by the sun :)

Dead: Jamis Dakar frame, Mongoose Pro Downhill frame, cooked Lipo booster pack....and various other bits and pieces...

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Whiplash   100 MW

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Re: Mark_A_W's DH Team/MAC Shanghai/64v Headway build

Post by Whiplash » Jul 17 2011 4:38pm

MArk, have yo u tried the new gears?? they seem very strong!
Power is a fascinating thing, the more you have, the more you want, but the real power is having the restraint not to use it all at once...............Um...Yeah..

The harder you work.....The luckier you get!!

"People who say it can't be done are often interrupted by those that have already figured out how to do it!"

Email me @ currentcycles@gmail.com
OR check out http://www.CurrentCycles.net

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Mark_A_W   100 kW

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Re: Mark_A_W's DH Team/MAC Shanghai/64v Headway build

Post by Mark_A_W » Jul 17 2011 5:07pm

No, the motor is completely dead.

I'm slowly building a new battery pack and saving for a new motor (3540). The geared motor experiment is over, the concept is good, but the engineering is not up to the task = they go fast but they break.
Under construction: Giant DH Team, MAC Shanghai, Infineon 18 FET controller, 64v Headway battery. LINK!!

Retired: Kona Dawg Dually + Bomber Triple Clamp forks with Nine Continents front hub motor, 48v 10Ah Headway LiFePO4 Pack + 12v 10Ah Headway LiFePO4 booster pack (nominal 64v).

Powered by the sun :)

Dead: Jamis Dakar frame, Mongoose Pro Downhill frame, cooked Lipo booster pack....and various other bits and pieces...

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Whiplash   100 MW

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Re: Mark_A_W's DH Team/MAC Shanghai/64v Headway build

Post by Whiplash » Jul 17 2011 5:35pm

Bummer, yeah the DD hubs ARE very reliable, I have one too from Conhismotor and @58V hot 30A it moves real good! 37MPH and decent acceleration too! Can't beat the price either! Nice beefy axle too!
Power is a fascinating thing, the more you have, the more you want, but the real power is having the restraint not to use it all at once...............Um...Yeah..

The harder you work.....The luckier you get!!

"People who say it can't be done are often interrupted by those that have already figured out how to do it!"

Email me @ currentcycles@gmail.com
OR check out http://www.CurrentCycles.net

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Re: Mark_A_W's DH Team/MAC Shanghai/64v Headway build

Post by kentlim26 » Jul 18 2011 5:48am

hi whiplash,

i have ordered a controller 48v 2000watts, 18fets, for usd65.00 . Included shipping, i think this controller will arrival my house in a few days time. i run this conhis motor for a year plus. the speed is usual the same , only 50km/h + . Do you think , by going from 48v 1500watts to 48v 2000watts, will my speed increased to 55km/h ? is it possible. im light weight man. 65kg. ? my goal is 55km/h, i will be happy about it. i also heard some guys got a offer from conhis, he got a price for a hub motor of usd50.00 ??

48v 2000watts = what is the speed if loaded with a light weight man 65kg ? can any body please guess ?

cheers..
kentlim
Conhis hub motor run on April 2010, 48v 1000watts hub motor distance run 5800km, and Re~alive cyclone kit bought in year 2009, Bought a greentime controller 18fets- 4110 , 48v~ 90v , 3-speed mode. Latest top speed I got for my greentime controller 76.8km/h ! , yet to reach 80km/h, or I will never reached 80km/h ?

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gensem   100 kW

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Re: Mark_A_W's DH Team/MAC Shanghai/64v Headway build

Post by gensem » Jul 18 2011 10:08am

I gessing your going to get more torque, but the speed shouldnt change in a straight line.
Justin we really appreciate what you did!

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oatnet   10 MW

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Re: Mark_A_W's DH Team/MAC Shanghai/64v Headway build

Post by oatnet » Jul 18 2011 12:43pm

Because of backEMF, Voltage will pretty much determine your top speed, not amps. You will have more torque, and generate more heat, but not speed.

/JD
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Mark_A_W   100 kW

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Re: Mark_A_W's DH Team/MAC Shanghai/64v Headway build

Post by Mark_A_W » Nov 22 2012 9:23pm

Guys

This bike is for sale (dead motor).

http://endless-sphere.com/forums/viewto ... =9&t=45797


Cheers
Under construction: Giant DH Team, MAC Shanghai, Infineon 18 FET controller, 64v Headway battery. LINK!!

Retired: Kona Dawg Dually + Bomber Triple Clamp forks with Nine Continents front hub motor, 48v 10Ah Headway LiFePO4 Pack + 12v 10Ah Headway LiFePO4 booster pack (nominal 64v).

Powered by the sun :)

Dead: Jamis Dakar frame, Mongoose Pro Downhill frame, cooked Lipo booster pack....and various other bits and pieces...

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