Search found 3074 matches

by Kepler
Apr 08, 2018 5:58 am
Forum: E-Bike Non-hub Motor Drives
Topic: Kepler Friction drive comes of age.
Replies: 339
Views: 34155

Re: Kepler Friction drive comes of age.

I am using a Pro Mini board for the actual build. It has basically the same capabilities as it's larger brothers but is stripped down to bare minimum. No built in TTL and no voltage regulator. Still easy to program with an external TTL and the the Vesc supplies the required 5V. Other great thing is ...
by Kepler
Apr 07, 2018 2:55 am
Forum: E-Bike Photos & Video
Topic: Single-speed track stealth ultralight
Replies: 187
Views: 7603

Re: Single-speed track stealth ultralight

That bike looks fantastic. Great work. I think you really have completed your brief with this build. No one will pick this for electric assist. You button throttle arrangement will work fine however I think after a bit of riding you will wish the buttons latched rather then needing to hold them on w...
by Kepler
Apr 03, 2018 12:43 am
Forum: E-Bike Non-hub Motor Drives
Topic: Kepler Friction drive comes of age.
Replies: 339
Views: 34155

Re: Kepler Friction drive comes of age.

A quick video of the programmed button action.

by Kepler
Apr 02, 2018 5:12 am
Forum: E-Bike Non-hub Motor Drives
Topic: Kepler Friction drive comes of age.
Replies: 339
Views: 34155

Re: Kepler Friction drive comes of age.

well 4 days of Youtube tutorials and a heap of online reading brought me to the realization that line coding sucks :lol:. Got the basics and can now get my servo to do some simple commands however still a long way off being able to write code that makes the PWM output do what I really want it to do....
by Kepler
Mar 28, 2018 4:51 am
Forum: E-Bike Non-hub Motor Drives
Topic: Kepler Friction drive comes of age.
Replies: 339
Views: 34155

Re: Kepler Friction drive comes of age.

@Kepler The Arduino Nano is powered from the VESC. I'm as talented as you in regards to Arduino code. That's why my hall setup is not active yet. So far I'm just using a simple servo command (found online) to map the buttons to PWM outputs. So it begins. Time to teach an old dog new tricks. Actuall...
by Kepler
Mar 25, 2018 10:33 pm
Forum: E-Bike Non-hub Motor Drives
Topic: Kepler Friction drive comes of age.
Replies: 339
Views: 34155

Re: Kepler Friction drive comes of age.

Below are some renders of the latest endstop modifications that i am currently testing. The lower endstop is the critical stop as this takes all hammering from disengagement and bouncing around when riding on rough ground. It uses the unbrako bolt head as the end stop and has a triple lockdown syste...
by Kepler
Mar 25, 2018 6:27 pm
Forum: E-Bike Non-hub Motor Drives
Topic: Kepler Friction drive comes of age.
Replies: 339
Views: 34155

Re: Kepler Friction drive comes of age.

Thanks for the warm welcome! I would love to share more details of the build. What are you interested in particularly? Yes, I use the Arduino to send PWM to the VESC. Currently I have a button on each shifter. One is configured to 250, the other to 500W. The Arduino also makes it easy to configure ...
by Kepler
Mar 24, 2018 6:54 pm
Forum: E-Bike Non-hub Motor Drives
Topic: Kepler Friction drive comes of age.
Replies: 339
Views: 34155

Re: Kepler Friction drive comes of age.

I'm using a VESC in FOC mode. A bluetooth module in combination with the Metr app gives me an awesome cockpit and allows to set the assist levels from the phone. I also added an Arduino which I use to configure the controls/buttons...I'm still playing around with this. I also have magnets in the ch...
by Kepler
Mar 24, 2018 6:25 pm
Forum: E-Bike Non-hub Motor Drives
Topic: Kepler Friction drive comes of age.
Replies: 339
Views: 34155

Re: Kepler Friction drive comes of age.

Hi Andre. Welcome officially to the forum. Love the design enhancements. You look like you have some great building skills there. You really should put together a build thread on this bike. There is still a lot of interest for this friction drive system/concept and I am sure there are many people on...
by Kepler
Mar 22, 2018 1:59 am
Forum: E-Bike Photos & Video
Topic: Single-speed track stealth ultralight
Replies: 187
Views: 7603

Re: Single-speed track stealth ultralight

I am a big fan of button throttles on low powered setups. Having the button set a current limit is in my opinion the best way to go which is essentially what you are planning from what i can see. I think what you are proposing will work well and will suit the bull horn bars nicely. This is my setup ...
by Kepler
Mar 18, 2018 12:01 am
Forum: Items for Sale - New
Topic: JP spot welder
Replies: 1108
Views: 121130

Re: JP spot welder

I second that endorsement. Mine has done literally thousands of welds and worked flawlessly.

Good luck with the continued sales.
by Kepler
Mar 17, 2018 2:53 am
Forum: Items for Sale - New
Topic: Kepler Friction Drive System (sale thread)
Replies: 159
Views: 27315

Re: Kepler Friction Drive System (sale thread)

There has been quite a change since the original Mk 1. If you want a drive that attaches to the seatpost, the Mk 1 is a good option. The latest design is a bottom bracket mount. Go to this thread for more info https://endless-sphere.com/forums/viewtopic.php?f=31&t=86961&sid=3c68b8f99aa61d26393a3193a...
by Kepler
Mar 14, 2018 9:54 pm
Forum: E-Bike Non-hub Motor Drives
Topic: BBS02 48v .. with 36v battery, possible?
Replies: 8
Views: 754

Re: BBS02 48v .. with 36v battery, possible?

The minimum voltage setting you can program is 38V unfortunately.
by Kepler
Feb 04, 2018 10:32 pm
Forum: E-Bike Photos & Video
Topic: Stealth FUTR owners builds and pics
Replies: 2048
Views: 83048

Re: Stealth FUTR owners builds and pics

The narrow wide chain ring makes a big difference. Discussed in detail a little while back.

https://endless-sphere.com/forums/vi ... start=1525
by Kepler
Jan 25, 2018 8:24 pm
Forum: E-Bike Non-hub Motor Drives
Topic: Cycle Analyst on TSDZ2
Replies: 4
Views: 389

Re: Cycle Analyst on TSDZ2

I converted my BBS02 to a Cycle Analyist a few years back. A few compromises but it was very successful and huge improvement over the standard interface.

https://endless-sphere.com/forums/viewt ... 0#p1019353
by Kepler
Nov 27, 2017 9:46 pm
Forum: Items for Sale - New
Topic: Rubbee X - (re)Introduction
Replies: 53
Views: 7497

Re: Rubbee - A new choice

Guys, it's been a while ! :) Many of you heard about us all the way back from 2013 and followed the bumpy road from the first Kickstarter batch :) I've seen our new Rubbee X pop up multiple times in the "Non-ebike media" thread, thought we should revive this one too. So have you seen the new Rubbee...
by Kepler
Nov 02, 2017 6:28 pm
Forum: Items for Sale - New
Topic: Kepler Bottom Bracket Friction Drive For Sale (Finally)
Replies: 168
Views: 16178

Re: Kepler Bottom Bracket Friction Drive For Sale (Finally)

Hi all, Just to let you all know I wont be producing any more drives this year. My apologies to those who have been waiting patiently for new drives to come back in stock. Unfortunately my daytime job work load and family commitments have made it impossible to spend time on further production. Howev...
by Kepler
Nov 02, 2017 2:08 am
Forum: E-Bike Technical
Topic: Friction drive motor top speeds?
Replies: 7
Views: 581

Re: Friction drive motor top speeds?

Any of those motors will work fine. I would go with the lowest KV on 36V though. Not sure if the Maytech and Turnigy are built by the same company. I wouldn't be surprised if it was though. If you kept the roller engaged all the time you could use it for regen. Little gain though on a light weight b...
by Kepler
Oct 31, 2017 3:09 am
Forum: E-Bike Technical
Topic: Friction drive motor top speeds?
Replies: 7
Views: 581

Re: Friction drive motor top speeds?

Thanks for the info, 45km/hour is more than fast enough... for now :) I'm a bit of a newb when it comes to esc's, i've narrowed it down to these 3, i'll be running a 36v li-ion in possibly a 9ah or most likely 18ah config. Now for some reason all those esc's say lipo lipo lipo in the specs, does th...
by Kepler
Oct 15, 2017 2:01 am
Forum: E-Bike General Discussion
Topic: Indiegogo ebike for $159 (Friction drive)
Replies: 6
Views: 468

Re: Indiegogo ebike for $159 (Friction drive)

I find it amusing that they make out they have come up with something new and revolutionary. Done and dusted right here on ES so many times :roll: . Price is crazy though. They must have some amazing buying power. Some big claims with it fitting 99% of bikes. Interesting that there is next to no det...
by Kepler
Oct 01, 2017 9:48 pm
Forum: E-Bike Non-hub Motor Drives
Topic: Kepler Friction drive comes of age.
Replies: 339
Views: 34155

Re: Kepler Friction drive comes of age.

Put together a quick walk around of the the drive on my daily commuter. I average around 100km a week on this bike and look forward to every ride.

by Kepler
Sep 28, 2017 6:20 pm
Forum: E-Bike General Discussion
Topic: Solutions for 'blackenng' aluminum?
Replies: 10
Views: 544

Re: Solutions for 'blackenng' aluminum?

Professional anodizing is the best solution presuming you have an anodizer in your area. I live in Melbourne Australia and have had lots of parts anodized over the years. It actually quite cheap to have done and is only a few days turnaround. $50 gets you a lot of anodizing. The minimum charge I was...
by Kepler
Sep 14, 2017 7:31 pm
Forum: Items for Sale - New
Topic: Kepler Bottom Bracket Friction Drive For Sale (Finally)
Replies: 168
Views: 16178

Re: Kepler Bottom Bracket Friction Drive For Sale (Finally)

That's a good solution to stopping the bracket slipping under load. I have always used cup style screw in bottom bracket bears which give you plenty of surface area to tight against. It can also be advantageous to assemble it with some medium strength locktite. I am thinking of adding a generic brac...
by Kepler
Sep 14, 2017 7:23 pm
Forum: E-Bike Non-hub Motor Drives
Topic: Kepler Friction drive comes of age.
Replies: 339
Views: 34155

Re: Kepler Friction drive comes of age.

Thanks for the replies. a) Does it make any difference to the amps settings for motor/battery if I'm using a throttle set to current mode vs duty cycle in the ADC app config? b) Also should the rated max amps of the VESC itself fit into this? Eg, if the VESC is only rated at 25A continuous, then I ...
by Kepler
Sep 12, 2017 10:54 pm
Forum: Items for Sale - New
Topic: Kepler Bottom Bracket Friction Drive For Sale (Finally)
Replies: 168
Views: 16178

Re: Kepler Bottom Bracket Friction Drive For Sale (Finally)

The bike looks great Slopes. Very neat and understated. Just the way i like it. You will have a few Lycra's scratching their heads wondering why they can't keep up with you :D .