Search found 158 matches

by jdevo2004
Mar 29 2015 10:09am
Forum: E-Bike Non-hub Motor Drives
Topic: The Beast Mid Drive. In Beta Testing.
Replies: 125
Views: 21341

Re: The Beast Mid Drive. 3 Beta Testers Wanted!

Ok, not to rain on the parade but, this system is hugely close to lightning rods kit. You are even using his pulley. (Yes I see a few differences, but essentially, it is nearly the same). Don't get me wrong, the system looks well thought out. I just wanted to point out what others may not be comfor...
by jdevo2004
Mar 27 2015 10:26pm
Forum: E-Bike Non-hub Motor Drives
Topic: The Beast Mid Drive. In Beta Testing.
Replies: 125
Views: 21341

Re: The Beast Mid Drive. 3 Beta Testers Wanted!

Does Australia count as Oceania? Some people say it does and some say it doesn't... I could cover off on those criteria- I was thinking about buying a GNG for my next dual susp build as we have some good off road mountain biking here. I could also test it on my daily 25km commute to work (Norco Sho...
by jdevo2004
Mar 27 2015 10:20pm
Forum: E-Bike Non-hub Motor Drives
Topic: The Beast Mid Drive. In Beta Testing.
Replies: 125
Views: 21341

Re: The Beast Mid Drive. 3 Beta Testers Wanted!

Spinningmagnets: Too bad! If there is anyone here on ES forums that I would like to have test my kit it is you! Amberwolf: The kit can use any speed cassette but I have found that the weakest part of the system of getting power to the ground in extreme terrain is the bicycle chain and the cassette. ...
by jdevo2004
Mar 27 2015 8:41pm
Forum: E-Bike Non-hub Motor Drives
Topic: The Beast Mid Drive. In Beta Testing.
Replies: 125
Views: 21341

The Beast Mid Drive. In Beta Testing.

This kit is now in beta testing. No further information will be available until the beta is finished. I would like to introduce to you a project that I have been working on since last November. It is a high power mid drive that I affectionately call The Beast. I wanted to create an uncompromising, d...
by jdevo2004
Mar 23 2015 5:51pm
Forum: E-Bike General Discussion
Topic: I hurt myself ebiking today (fixed problem with a CA hack)
Replies: 31
Views: 3502

Re: I hurt myself ebiking today

OK so after talking with Justin I found out that the Cycle Analyst does indeed have a feature that controls torque if you mistakenly let go of the brakes with the throttle on. The feature is the Throttle Out Up Rate. After letting go of the ebrake the CA uses the Throttle Out Up Rate to get back up ...
by jdevo2004
Mar 22 2015 5:55pm
Forum: E-Bike Non-hub Motor Drives
Topic: demo 8 astro 3220
Replies: 38
Views: 9835

Re: demo 8 astro 3220

That thing looks like a beast! Nice! What motor are you using? How much power are you laying down?
by jdevo2004
Mar 15 2015 11:49pm
Forum: E-Bike General Discussion
Topic: I hurt myself ebiking today (fixed problem with a CA hack)
Replies: 31
Views: 3502

Re: I hurt myself ebiking today

Hi Justin. I was just out in my garage checking everything over. The brake cut off is going to the CA, not the controller. I own a CA3. I was checking the throttle out voltage to the controller. If I quickly go full throttle with my twist grip, the throttle voltage slowly goes from 1.3 volts to 3.2...
by jdevo2004
Mar 15 2015 4:59pm
Forum: E-Bike General Discussion
Topic: I hurt myself ebiking today (fixed problem with a CA hack)
Replies: 31
Views: 3502

Re: I hurt myself ebiking today

In current throttle mode, the CA ups the throttle when it doesn't see any response due to the ebrake. Letting off the brake gives you a jolt,even when the throttle was slightly open. This will be the case if the CA3 is 'oblivious' to the fact that the ebrakes are being pressed. So if you have the b...
by jdevo2004
Mar 14 2015 12:17pm
Forum: E-Bike General Discussion
Topic: I hurt myself ebiking today (fixed problem with a CA hack)
Replies: 31
Views: 3502

Re: I hurt myself ebiking today

Sorry to hear you got hurt. In current throttle mode, the CA ups the throttle when it doesn't see any response due to the ebrake. Letting off the brake gives you a jolt,even when the throttle was slightly open. Justin may have fixed this in the current version of the firmware but I haven't had a ch...
by jdevo2004
Mar 13 2015 9:39pm
Forum: E-Bike General Discussion
Topic: I hurt myself ebiking today (fixed problem with a CA hack)
Replies: 31
Views: 3502

I hurt myself ebiking today (fixed problem with a CA hack)

I severely sprained my ankle ebiking off road today. I was testing my 3000 watt mid drive and as I was coming up to a sharp corner I slowed down using both of my brakes. My rear brake has a throttle cut off. I did not realize that I still had twist in the throttle when I let go of the brakes. 3000 w...
by jdevo2004
Mar 04 2015 6:21pm
Forum: E-Bike Technical
Topic: .
Replies: 0
Views: 216

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by jdevo2004
Feb 28 2015 12:35pm
Forum: E-Bike Non-hub Motor Drives
Topic: LightningRods mid drive kit
Replies: 4957
Views: 606549

Re: LightningRods mid drive kit

First of all, is the motor running in the proper direction. It should be running counter clockwise. Second, 550w is too high for full power with no load. This is definitely a bad hall/phase combo. Maybe you should just hook it up and see how much torque you can get from one of those combos that is u...
by jdevo2004
Feb 17 2015 1:35pm
Forum: E-Bike Non-hub Motor Drives
Topic: LightningRods mid drive kit
Replies: 4957
Views: 606549

Re: LightningRods mid drive kit

They sound similar. The easiest way to see the difference is watching the watts. t0me is running 50 volts so max rpm no load should be around 150ish watts. Notice he is reaching well over 1000 watts. That is a sign that the hall sensors or phase wires or both are wrong.
by jdevo2004
Feb 13 2015 2:02pm
Forum: E-Bike General Discussion
Topic: Any tips or tricks to removing a flanged freewheel?
Replies: 3
Views: 364

Any tips or tricks to removing a flanged freewheel?

I have a couple of flanged freewheels that seem to be permanently mated to either crank arms or adapters. It seems that even if I have the right brand freewheel tool they are impossible to separate, it seems they are even immune to hacksaws! Has anyone successfully removed an old freewheel from a cr...
by jdevo2004
Jan 17 2015 11:48am
Forum: E-Bike Non-hub Motor Drives
Topic: Mongoose Salvo, GNG 1.1 build (in progress)
Replies: 25
Views: 10924

Re: Mongoose Salvo, GNG 1.1 build (in progress)

I like your belt and chain mods.
by jdevo2004
Jan 14 2015 12:40pm
Forum: E-Bike Non-hub Motor Drives
Topic: LightningRods mid drive kit
Replies: 4957
Views: 606549

Re: LightningRods mid drive kit

Just use a battery with more volts. More volts with the same amps you have been using equals more watts. More watts means more horse power and torque. That is all you need to know. Just get a higher voltage battery and play with the gears that you have and you will be happy. Do not try to analyze it...
by jdevo2004
Jan 07 2015 3:33pm
Forum: E-Bike Non-hub Motor Drives
Topic: 2 speed mid-drive build
Replies: 37
Views: 8118

Re: 2 speed mid-drive build

Very interested in how this turns out.
by jdevo2004
Jan 02 2015 3:35pm
Forum: E-Bike Non-hub Motor Drives
Topic: Downhill project motorcycle transmission
Replies: 304
Views: 37456

Re: Downhill project motorcycle transmission

Get a cycle analyst and reduce the feed back gain to control the instant torque. Sucks that people got hurt but really cool project none the less.
by jdevo2004
Jan 01 2015 4:15pm
Forum: Battery Technology
Topic: Holy grail of solderless 18650 is close but not idiot proof.
Replies: 54
Views: 12192

Re: Holy grail of solderless 18650 is close but not idiot pr

Off the shelf components can be built with mostly hand tools....... only one specialist part (the dimpling block) and you are in business. Change any battery with a screwdriver. http://endless-sphere.com/forums/viewtopic.php?f=14&t=57810 KISS is best! That system does not address copper oxidization...
by jdevo2004
Jan 01 2015 10:43am
Forum: Battery Technology
Topic: Holy grail of solderless 18650 is close but not idiot proof.
Replies: 54
Views: 12192

Re: Holy grail of solderless 18650 is close but not idiot pr

Custom copper strips are expensive. Remember, they need to be nickel plated. Copper oxidizes relatively quickly in the air and even the thinnest layer of oxide will impede the batteries performance. I am aware of what you mean by leaving one of the contact sides "springy", there are other ways to do...
by jdevo2004
Jan 01 2015 10:30am
Forum: E-Bike Non-hub Motor Drives
Topic: Strong freewheeling crankset
Replies: 340
Views: 66071

Re: Strong freewheeling crankset

Correct me if I am wrong here but the only thing that is screwed on to a freewheel is the pedal which is a pain in the ass to remove if you ever want to change pedals. The video clearly shows that the pedal is actually part of their freewheel system and is not removable. How does that help. Cool tha...
by jdevo2004
Jan 01 2015 10:22am
Forum: Battery Technology
Topic: Holy grail of solderless 18650 is close but not idiot proof.
Replies: 54
Views: 12192

Re: Holy grail of solderless 18650 is close but not idiot pr

LOL of course I researched springs. They are expensive, and they are not suitable for anything more than 2 amps. They are made of steel and even the thickest small springs are too thin. They would heat up like an incandescent filament under the types of current that we would need. You want to keep t...
by jdevo2004
Dec 30 2014 4:47pm
Forum: Battery Technology
Topic: Holy grail of solderless 18650 is close but not idiot proof.
Replies: 54
Views: 12192

Re: Holy grail of solderless 18650 is close but not idiot pr

It's an interesting design. If the tree's were wavy they might offer some compression. The board would have to be a bit flexible but it could work. It is very fussy though. This is a very smart idea. The compression strength would have to be tested under cold and heat as well as time, but it is doa...
by jdevo2004
Dec 29 2014 9:09pm
Forum: Battery Technology
Topic: Holy grail of solderless 18650 is close but not idiot proof.
Replies: 54
Views: 12192

Re: Holy grail of solderless 18650 is close but not idiot pr

The key to making any of the solderless designs work is independent and adequate spring force designed into contacts that allows the cells to wiggle and shift a bit from stress events and still remain a low resistance electrical connection to each cell. Solderless has many advantages over spot weld...