Search found 156 matches

by sketchism
Feb 09 2019 7:55pm
Forum: E-Bike Technical
Topic: Electric CRF 250 motocross build Mobipus 72600
Replies: 2
Views: 221

Re: Electric CRF 250 motocross build Mobipus 72600

hey mate nice choice ive done the same bike and controller with an Mforce motor


Mobipus pass is Mobipus-88888888

by sketchism
Feb 09 2019 5:54pm
Forum: E-Bike Technical
Topic: Automatic Wheelie control / Launch control module Beta testing
Replies: 12
Views: 413

Re: Automatic Wheelie control / Launch control module Beta testing

interesting you mention the death bike because without using launch control (low angle) mode when I was doing my 0-100 runs I was mousetrapping the throttle and backing off too much as the front came up, then letting it down too much and losing speed to get the nose to come back down etc with the bo...
by sketchism
Feb 09 2019 11:56am
Forum: E-Bike Technical
Topic: Automatic Wheelie control / Launch control module Beta testing
Replies: 12
Views: 413

Re: Automatic Wheelie control / Launch control module Beta testing

Hi izeman!

it should definitely work with any drive type as long as you can tap your three throttle wires all good?
by sketchism
Feb 09 2019 6:36am
Forum: E-Bike Technical
Topic: Automatic Wheelie control / Launch control module Beta testing
Replies: 12
Views: 413

Re: Automatic Wheelie control / Launch control module Beta testing

apart from the fun side of it i haven't really made it clear that i would also it was initially designed for saftey, to stop flipping accidentally which has injured a few people on powerful ebikes, it wont entirely stop whisky throttle but it can be set to stop the front coming up past X angle
by sketchism
Feb 09 2019 5:04am
Forum: E-Bike Technical
Topic: Automatic Wheelie control / Launch control module Beta testing
Replies: 12
Views: 413

Automatic Wheelie control / Launch control module Beta testing

I've been quiet but I've been busy since HubSinks! they are related though because as i kept adding power, i needed more control The 4th version of the Wheelie Box / Launch Control Module is done after almost 2 years, its fully potted and shock/waterproof now and i'm ready to start organising public...
by sketchism
Feb 09 2019 4:55am
Forum: Items for Sale - New
Topic: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD
Replies: 73
Views: 8067

Re: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD

How did you go once you got the FF in there ive been away so apologies for the late reply but yep, the FF is very important and doubles the effectiveness of the Hubsink alone! Haha. I don’t know what feral fluid is either. All jokes aside, thank you very much for your replies. I just got the hub sin...
by sketchism
Aug 22 2018 7:12pm
Forum: Items for Sale - New
Topic: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD
Replies: 73
Views: 8067

Re: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD

i've been doing some more seat of the pants testing with the Hubsinks and statorade and i've found when first installing the statorade putting the whole 10ML in seems to be the sweet spot (at least for the QS205 and MXUS motors) Some makes its way into the nooks and crannys, and seems to leave the m...
by sketchism
Aug 22 2018 6:50pm
Forum: E-Bike Technical
Topic: Definitive Tests on the Heating and Cooling of Hub Motors
Replies: 2080
Views: 338202

Re: Definitive Tests on the Heating and Cooling of Hub Motors

Electric God, the weight of the hubsink is not an issue in my eyes. I mean for a heavy hub motor the weight of the hub sink is negotiable at best. If you worry put the hub on the lathe and shave down the back iron a millimeter or so before attaching. Now your hub is lighter even with the hubsink an...
by sketchism
Aug 22 2018 6:46pm
Forum: Battery Technology
Topic: Why not to try revive abused cells!
Replies: 7
Views: 476

Re: Why not to try revive abused cells!

haha yeah lucky i heard it making expanding noises, like a creaky chair
by sketchism
Aug 16 2018 8:26pm
Forum: Battery Technology
Topic: Why not to try revive abused cells!
Replies: 7
Views: 476

Why not to try revive abused cells!

My neighbour borrowed one of my 'in progress' bikes while i was away, before it was finished, rideable but not finished, no LVC set and nothing calibrated. I got a msg saying the bike is dead and wont ride anymore, i asked what voltage the CA says and he said 40v... it was a 96v pack The cells that ...
by sketchism
Feb 03 2018 12:23am
Forum: E-Bike Technical
Topic: What can be done about motor overheating?
Replies: 59
Views: 8022

Re: What can be done about motor overheating?

someone just linked me to this thread and it made me rememeber how far we've come in such a short time with HubSinks and Statorade!
by sketchism
Jan 17 2018 5:59pm
Forum: Items for Sale - New
Topic: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD
Replies: 73
Views: 8067

Re: Hub Motor cooling solution - HUBSINK OFFICIAL THREAD

I put these on about 9 months ago. They were fun to install and very well crafted - and with Statorade / Ferrofluid the overheat issues on my commute have disappeared. Hope that this pictorial story-line of the installation is helpful/entertaining. haha thanks man, as soon as i saw the image with t...
by sketchism
Dec 30 2017 6:34am
Forum: Items for Sale - New
Topic: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD
Replies: 73
Views: 8067

Re: Hub Motor cooling solution - HUBSINK OFFICIAL THREAD

Hey mate I've never unwrapped the actual syringe but yep thats correct, each piece should have around .3ml on it and spread as thin as possible
by sketchism
Dec 18 2017 6:28am
Forum: Items for Sale - New
Topic: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD
Replies: 73
Views: 8067

Re: Hub Motor cooling solution - HUBSINK OFFICIAL THREAD

hey Andrew your order went out in todays (monday morning) post so say 7 days to be safe
by sketchism
Dec 18 2017 4:44am
Forum: E-Bike Technical
Topic: Definitive Tests on the Heating and Cooling of Hub Motors
Replies: 2080
Views: 338202

Re: off topic

John Bozi wrote:
Dec 17 2017 8:48am
My next goal is to work out how not to fry my brakes. My last ride scared me.


we have a solution man, should have a beta test ready for you soon!

goes with the hubsinks now you can ride longer brake fade is a real problem, same as me and matt
by sketchism
Dec 16 2017 6:12pm
Forum: E-Bike Technical
Topic: Definitive Tests on the Heating and Cooling of Hub Motors
Replies: 2080
Views: 338202

Re: Definite happiness with Cooling of Hub Motors

John Bozi wrote:
Oct 14 2017 2:49pm
Now all I do is ride with an occasional beer stop.

JB

cheers!
haha isn't that the ultimate goal!
you're right thought i have barely thought about cooling since ff and hubsinks, i wear out way before the bike does now lol
by sketchism
Dec 16 2017 6:02pm
Forum: Items for Sale - New
Topic: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD
Replies: 73
Views: 8067

Re: Hub Motor cooling solution - HUBSINK OFFICIAL THREAD

Merlin wrote:
Nov 12 2017 8:49pm
...from the beginning.
best cooling solution ever =)

Image
damn that looks nice!
by sketchism
Oct 24 2017 12:25am
Forum: Items for Sale - New
Topic: Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD
Replies: 73
Views: 8067

Ebike Hub Motor overheating cooling solution - HUBSINK OFFICIAL THREAD

Hey guys! With over a year of Real Life™, Computational and Wind Tunnel testing and a couple of race wins now under our belts, i figured i should actually declare them out of BETA testing and make a sales thread for the HubSinks, im super humbled by the help i've received from everyone during the be...
by sketchism
Jul 28 2017 2:44am
Forum: E-Bike Technical
Topic: Definitive Tests on the Heating and Cooling of Hub Motors
Replies: 2080
Views: 338202

Re: Definitive Tests on the Heating and Cooling of Hub Motor

This photo gets me excited haha, been a long time coming! Really appreciate everything you put into the industry man! Honored to have the sinks in the tunnel!, will be great to see how close they perform in real life to the original thermodynamic modeling! https://endless-sphere.com/forums/download/...
by sketchism
Jul 11 2017 11:58pm
Forum: E-Bike Technical
Topic: Definitive Tests on the Heating and Cooling of Hub Motors
Replies: 2080
Views: 338202

Re: Definitive Tests on the Heating and Cooling of Hub Motor

skethism: When looking at your hubsink design I was wondering why you made the base so thick and the fins so thick? Could you not have used less material and made them lighter and a little thinner? I know thickness does matter somewhat for shedding of the heat and acting as a buffer so maybe you de...
by sketchism
Jul 10 2017 5:17am
Forum: E-Bike Technical
Topic: Definitive Tests on the Heating and Cooling of Hub Motors
Replies: 2080
Views: 338202

Re: Definitive Tests on the Heating and Cooling of Hub Motor

The showdown will commence shortly, Forced air vs Statorade + hub sinks. Can the Statorade + Hub sinks even come close to the best modified forced air cooled hub motor known on the forum, which is proven not to overheat under most conditions? Looking forward to hearing how it goes! keep us updated ...
by sketchism
Jun 16 2017 6:49pm
Forum: E-Bike Technical
Topic: Definitive Tests on the Heating and Cooling of Hub Motors
Replies: 2080
Views: 338202

Re: Definitive Tests on the Heating and Cooling of Hub Motor

Yeah all those factors do matter. You know what is funny Justin named this thread the "definitive tests" . to be fair i did publish the exact stats for how much heat energy (not motor power, that depends on what % efficiency your motor is operating at, 10KW input at 90% efficiency is around 1000W o...
by sketchism
Jun 14 2017 3:10am
Forum: E-Bike Technical
Topic: Definitive Tests on the Heating and Cooling of Hub Motors
Replies: 2080
Views: 338202

Re: Definitive Tests on the Heating and Cooling of Hub Motor

Posted on Facebook ES by Sketch Coleman. Yesterday was in the mid 90's and while riding in the late AM my mxus 3t v2 3k motor was in the high 70°c instead of the low to mid 60°c I'd previously seen (ferrofluid is installed and high regen always active.) Installed my 2nd hubsink set on it, (heat was...