Search found 2398 matches

by adrian_sm
Jan 19 2015 3:28pm
Forum: E-Bike Non-hub Motor Drives
Topic: Commuter Booster - <1kg Friction Drive
Replies: 1344
Views: 229884

Re: Commuter Booster - <1kg Friction Drive

Realistically, I guess my vision is more like a serial group buy of standard products, a couple magic components and sufficient instructions and user guide to get some fully rolling and others pretty far. The remaining bit being the adaptation to the specific bike frame. This is all constrained to ...
by adrian_sm
Jan 18 2015 3:47pm
Forum: E-Bike Non-hub Motor Drives
Topic: Commuter Booster - <1kg Friction Drive
Replies: 1344
Views: 229884

Re: Commuter Booster - <1kg Friction Drive

I fully intended to make a business of the friction drive, took time off work to develop the design, concept,business model etc. But ultimately I felt it was not sustainable as a business. Here are a few reasons why: 1) Robustness / Ease of Setup - Takes some skill/care to install and setup. Requiri...
by adrian_sm
Jan 07 2015 9:12pm
Forum: E-Bike Non-hub Motor Drives
Topic: Commuter Booster - <1kg Friction Drive
Replies: 1344
Views: 229884

Re: Commuter Booster - <1kg Friction Drive

A longer swing arm mounting the motor could help. This will give more tire engagement for the same contact angle.

I know Kepler used a longer swing arm. But I have never had the need with the tire pressuresi have tested.
by adrian_sm
Jan 06 2015 5:10am
Forum: E-Bike Non-hub Motor Drives
Topic: Commuter Booster - <1kg Friction Drive
Replies: 1344
Views: 229884

Re: Commuter Booster - <1kg Friction Drive

Hello adrian_sm, I am looking to build the Commuter Booster system for my mountain bike which I use to commute to work. It's 12 miles round trip. Searching google led me to this forum. I like what you have done, it looks great and is much cheaper than the alternatives and hopefully for the distance...
by adrian_sm
Jan 06 2015 4:54am
Forum: E-Bike Non-hub Motor Drives
Topic: Commuter Booster - <1kg Friction Drive
Replies: 1344
Views: 229884

Re: Commuter Booster - <1kg Friction Drive

Hi guys, I've made an approximate copy of Adrian's bracket and swing arm, and I have a problem: Sometimes, as the drive engages into the tyre, it starts rattling against the stops very hard. It then ends up with bent pin of the swing arm (best case), or the clamp block cracks because of excessive i...
by adrian_sm
Dec 22 2014 6:17am
Forum: E-Bike Non-hub Motor Drives
Topic: Commuter Booster - <1kg Friction Drive
Replies: 1344
Views: 229884

Re: Commuter Booster - <1kg Friction Drive

Is anybody still here? :roll: I need some help in obtaining the old files from this forum. The ones which will allow me to use Turnigy watt meter to control the ESC. Here is the post: http://www.endless-sphere.com/forums/viewtopic.php?f=28&t=22187&start=165#p337690 The files from that attachment ar...
by adrian_sm
Dec 22 2014 6:16am
Forum: E-Bike Non-hub Motor Drives
Topic: Commuter Booster - <1kg Friction Drive
Replies: 1344
Views: 229884

Re: Commuter Booster - <1kg Friction Drive

Hey Everyone, Sorry about going incommunicado for so long. Life got a bit busy.... about the same time I realised that I don't think taking this project commercial is a good idea. I was actually pretty happy technically, and still use this drive as my main ebike, but the business case just didn't st...
by adrian_sm
May 24 2014 9:01pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Adrian's Bafang BPM Hardtail MTB
Replies: 66
Views: 13888

Re: Adrian's Bafang BPM Hardtail MTB

PVC Internal dimensuins
51*102mm
3mm radius

6s*5000mah turnigy 51*53mm
=> no room for wiring.
by adrian_sm
Feb 15 2014 3:35am
Forum: E-Bike Build Threads / Photos & Video
Topic: Full-throttle's 1st
Replies: 212
Views: 25160

Re: Full-throttle's 1st

Took your time with the cruiser. : )
What has it been three years? Bike looks great.

How is the rural life treating you? Looks like your shed is a bit bigger than your last place.
by adrian_sm
Feb 07 2014 6:59am
Forum: E-Bike Non-hub Motor Drives
Topic: New freeride project - LMX P1
Replies: 278
Views: 65335

Re: New freeride project - LMX P1

bzhwindtalker wrote:The problem is that the geometry has quite a lot of chain growth over the full travel
Just thinking aloud but could you make an active chain idler, that doesn't rely on a spring to take up the slack, but actually moves the idler with a four-bar link type arrangement as the suspension moves.
by adrian_sm
Jan 11 2014 10:10pm
Forum: E-vents
Topic: AUS - Melbourne summer rides
Replies: 24
Views: 3351

Re: AUS - Melbourne summer rides

Oh. Used about 350wh for the 26kms BTW.
by adrian_sm
Jan 11 2014 10:09pm
Forum: E-vents
Topic: AUS - Melbourne summer rides
Replies: 24
Views: 3351

Re: AUS - Melbourne summer rides

Thanks for the ride Kepler and rp3. Was a perfect day for it. About 26kms all up according good to the GPS.

Almost flew over the handle bars once or twice following Kepler over a couple of the jumps and slowing down too much.

Glad I had you guys as tour guides. I had no idea where we were.
by adrian_sm
Jan 10 2014 4:24am
Forum: E-vents
Topic: AUS - Melbourne summer rides
Replies: 24
Views: 3351

Re: AUS - Melbourne summer rides

Sunday morning @ Lysterfield anyone?
by adrian_sm
Jan 09 2014 5:21am
Forum: E-vents
Topic: AUS - Melbourne summer rides
Replies: 24
Views: 3351

Re: AUS - Melbourne summer rides

Make it a weekend and count me in!
by adrian_sm
Dec 22 2013 8:17am
Forum: Stand-up E-scooters and E-skateboards
Topic: Dirtsurfer electric build
Replies: 41
Views: 8651

Re: Dirtsurfer electric build

Code: Select all

[youtube]Q-cBxckEavE[/youtube]
by adrian_sm
Dec 21 2013 10:01am
Forum: E-vents
Topic: AUS - Melbourne summer rides
Replies: 24
Views: 3351

Re: AUS - Melbourne summer rides

Definitely would have joined you, but currently in Perth until the new year.

Everyone keep posting if you plan to go out for a ride and want company.
by adrian_sm
Dec 18 2013 7:11pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Full-throttle's 1st
Replies: 212
Views: 25160

Re: Full-throttle's 1st

All the best mate with the move. Think I may have to come and visit to check out the mountain bike goodness in your new neck of the woods.
by adrian_sm
Dec 13 2013 2:45am
Forum: E-Bike Non-hub Motor Drives
Topic: backyard millyard....midmount....
Replies: 108
Views: 15304

Re: backyard millyard....midmount....

Awesome work.

You rock !
by adrian_sm
Dec 04 2013 5:59am
Forum: E-Bike Non-hub Motor Drives
Topic: Regenerative brake using friction drive
Replies: 10
Views: 1939

Re: Regenerative brake using friction drive

I haven't done it just thought about it, and would be the wrong person to advise on how to do it. But... here are some links that may get you started. http://endless-sphere.com/forums/viewtopic.php?f=2&t=18001&p=266404&hilit=ebs#p266404 http://endless-sphere.com/forums/viewtopic.php?f=2&t=16944&p=24...
by adrian_sm
Nov 29 2013 6:03pm
Forum: E-Bike Non-hub Motor Drives
Topic: Regenerative brake using friction drive
Replies: 10
Views: 1939

Re: Regenerative brake using friction drive

A regen controller is cheap, available, and works. Why bother designing and building your own bridge rectifier and buck boost convertor? It also has the added advantage of actually being able to drive the motor. I don't see a down side. If you want variable regen, then just hack the current sense ci...
by adrian_sm
Nov 26 2013 5:24am
Forum: E-Bike Non-hub Motor Drives
Topic: Regenerative brake using friction drive
Replies: 10
Views: 1939

Re: Regenerative brake using friction drive

Should work. Give it a go. But personally I wouldn't bother for a number of reasons. 1) need some easy way to engage/disengage the motor otherwise you will always be pedalling against it 2) the lyen style controllers don't allow you to adjust the amount of regen while riding. It is either on or off,...
by adrian_sm
Nov 10 2013 7:09am
Forum: E-Bike Non-hub Motor Drives
Topic: Help me with a friction motor to choose
Replies: 8
Views: 1219

Re: Help me with a friction motor to choose

Hi, Got your PM but will answer here. Hope you are cool with that. My tips for selecting a friction drive motor (based on my style of friction drive, ie. direct drive on the wheel) 1) pick the biggest diameter that will fit 2) pick the longest motor Why? The bigger the motor the more continuous torq...
by adrian_sm
Nov 02 2013 5:13am
Forum: E-Bike Build Threads / Photos & Video
Topic: Adrian's 2nd Build - Giant AC Full Suspension
Replies: 115
Views: 26504

Re: Adrian's 2nd Build - Giant AC Full Suspension

Mudguards - they were just the widest plainest looking things from a local big chain bike shop. Possibly BBB brand - hot glue and cable ties was definitely how I attached the front one - the back one I vaguely remember using the actual metal bracket that come with the guards, - the front clip part ...
by adrian_sm
Oct 23 2013 4:37am
Forum: E-Bike General Discussion
Topic: Torque-Sensor Motor w/ Sine-Wave Controller Build
Replies: 120
Views: 35339

Re: Torque-Sensor Motor w/ Sine-Wave Controller Build

I haven't played with P1, but it sounds like a motor setting, not a PAS setting. Given the reference to reduction ratio and rotor magnet number.
Manual File Link: https://www.bmsbattery.com/attachment.p ... achment=52

Blue cable I think is a speed limit jumper. But I could be wrong.