Search found 2630 matches

by adrian_sm
Jan 19, 2015 3:28 pm
Forum: E-Bike Non-hub Motor Drives
Topic: Commuter Booster - <1kg Friction Drive
Replies: 1344
Views: 215120

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 3:47 pm
Forum: E-Bike Non-hub Motor Drives
Topic: Commuter Booster - <1kg Friction Drive
Replies: 1344
Views: 215120

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 9:12 pm
Forum: E-Bike Non-hub Motor Drives
Topic: Commuter Booster - <1kg Friction Drive
Replies: 1344
Views: 215120

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 5:10 am
Forum: E-Bike Non-hub Motor Drives
Topic: Commuter Booster - <1kg Friction Drive
Replies: 1344
Views: 215120

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 4:54 am
Forum: E-Bike Non-hub Motor Drives
Topic: Commuter Booster - <1kg Friction Drive
Replies: 1344
Views: 215120

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 6:17 am
Forum: E-Bike Non-hub Motor Drives
Topic: Commuter Booster - <1kg Friction Drive
Replies: 1344
Views: 215120

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 6:16 am
Forum: E-Bike Non-hub Motor Drives
Topic: Commuter Booster - <1kg Friction Drive
Replies: 1344
Views: 215120

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 9:01 pm
Forum: E-Bike Photos & Video
Topic: Adrian's Bafang BPM Hardtail MTB
Replies: 66
Views: 12679

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 3:35 am
Forum: E-Bike Photos & Video
Topic: Full-throttle's 1st
Replies: 212
Views: 22837

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 6:59 am
Forum: E-Bike Non-hub Motor Drives
Topic: New freeride project - LMX P1
Replies: 278
Views: 60665

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 10:10 pm
Forum: E-vents
Topic: AUS - Melbourne summer rides
Replies: 24
Views: 2914

Re: AUS - Melbourne summer rides

Oh. Used about 350wh for the 26kms BTW.
by adrian_sm
Jan 11, 2014 10:09 pm
Forum: E-vents
Topic: AUS - Melbourne summer rides
Replies: 24
Views: 2914

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 4:24 am
Forum: E-vents
Topic: AUS - Melbourne summer rides
Replies: 24
Views: 2914

Re: AUS - Melbourne summer rides

Sunday morning @ Lysterfield anyone?
by adrian_sm
Jan 09, 2014 5:21 am
Forum: E-vents
Topic: AUS - Melbourne summer rides
Replies: 24
Views: 2914

Re: AUS - Melbourne summer rides

Make it a weekend and count me in!
by adrian_sm
Dec 22, 2013 8:17 am
Forum: Stand-up E-scooters and E-skateboards
Topic: Dirtsurfer electric build
Replies: 41
Views: 7925

Re: Dirtsurfer electric build

Code: Select all

[youtube]Q-cBxckEavE[/youtube]
by adrian_sm
Dec 21, 2013 10:01 am
Forum: E-vents
Topic: AUS - Melbourne summer rides
Replies: 24
Views: 2914

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 7:11 pm
Forum: E-Bike Photos & Video
Topic: Full-throttle's 1st
Replies: 212
Views: 22837

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 2:45 am
Forum: E-Bike Non-hub Motor Drives
Topic: backyard millyard....midmount....
Replies: 108
Views: 14651

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

Awesome work.

You rock !
by adrian_sm
Dec 04, 2013 5:59 am
Forum: E-Bike Non-hub Motor Drives
Topic: Regenerative brake using friction drive
Replies: 10
Views: 1761

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 6:03 pm
Forum: E-Bike Non-hub Motor Drives
Topic: Regenerative brake using friction drive
Replies: 10
Views: 1761

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 5:24 am
Forum: E-Bike Non-hub Motor Drives
Topic: Regenerative brake using friction drive
Replies: 10
Views: 1761

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 7:09 am
Forum: E-Bike Non-hub Motor Drives
Topic: Help me with a friction motor to choose
Replies: 8
Views: 1134

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 10, 2013 6:34 am
Forum: Items for Sale - New
Topic: FS: Commuter Booster Friction Drive Beta Units
Replies: 167
Views: 32722

Re: FS: Commuter Booster Friction Drive Beta Units

Hi, Sorry. Another job has been taking up a lot of my time recently, which has slowed down this project. I get a lot of emails requesting drives, and generally reply to everyone in a group emails once a month or so. But I think I have left is a bit long recently. It is still alive and kicking. But w...
by adrian_sm
Nov 02, 2013 5:13 am
Forum: E-Bike Photos & Video
Topic: Adrian's 2nd Build - Giant AC Full Suspension
Replies: 115
Views: 24633

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 ...