Search found 1908 matches

by etard
Oct 23 2008 1:48pm
Forum: E-Bike General Discussion
Topic: Help*Noob*What set up?
Replies: 50
Views: 4542

Re: Help*Noob*What set up?

Dear Noob, I have the Wilderness Energy BL-36 kit and it has been great. Luckily my local bike shop started selling them cuz I have replaced the controller (my fault) and the front hub (again, my fault) under warranty and recieved replacements within a week. Do not get a front hub, I broke my dropou...
by etard
Oct 23 2008 9:04am
Forum: Battery Technology
Topic: More LiFePO4.... Free_shopping88....????
Replies: 65
Views: 5886

Re: More LiFePO4.... Free_shopping88....????

A brave soul indeed. What are the dimensions of this pack? Is it consistent with the sellers numbers? Updates please, I cant wait to get rid of these cursed lead batteries.
by etard
Oct 21 2008 7:21pm
Forum: Battery Technology
Topic: Tool Packs, Series or Parallel?
Replies: 5
Views: 610

Re: Tool Packs, Series or Parallel?

Well I like the price of these Ridgids(2 on ebay for $150), now that I know they are the same as used in the Milwaukees. And I was just talking to the tool saleman at Home Depot and found out about that LIFETIME warranty :twisted: . Now, I wonder if there is some sort of limiter on amp draw. What ki...
by etard
Oct 21 2008 4:16pm
Forum: E-Bike Non-hub Motor Drives
Topic: Why not friction drive?
Replies: 85
Views: 16712

Re: Why not friction drive?

Thats exactly the field story I need, MrAdventue! Thank you! Now looking at the rollers that came for the goped, I was wondering if impregnating the roller with diamonds wouldnt work. Much like the saw blades that they repair and reuse. The goped rollers are .600" and .850", the rough traction area ...
by etard
Oct 20 2008 11:05pm
Forum: Battery Technology
Topic: Tool Packs, Series or Parallel?
Replies: 5
Views: 610

Re: Tool Packs, Series or Parallel?

I know, I have been losing sleep over this stuff! I appreciate the synopsis, sometimes its easier to ask questions rather than slug it out with search attempts. I think I will go with milwaukee
by etard
Oct 20 2008 5:32pm
Forum: Battery Technology
Topic: Tool Packs, Series or Parallel?
Replies: 5
Views: 610

Tool Packs, Series or Parallel?

I want to get the Dewalt 28 or 36 volt lithium pack but I don't know if the internal BMS will allow these batteries to be run in series or in parallel. I want to keep the pack intact, run 4 2s2p or 1s4p, and just charge on the factory charger. If this pack does not support this setup, is there any t...
by etard
Oct 18 2008 10:05pm
Forum: E-Bike General Discussion
Topic: Extreme efficiency?
Replies: 54
Views: 4280

Re: Extreme efficiency?

I would start with the most efficient recumbant, (Matt, you should know this), then find one of the most efficient RC motors. You spent, what, $800 for the Plattenburg? What motor would be more efficient at 20MPH? I think that we should set some parameters and 20 mph should be the benchmark cuz that...
by etard
Oct 17 2008 10:52pm
Forum: E-Bike Non-hub Motor Drives
Topic: Why not friction drive?
Replies: 85
Views: 16712

Re: Why not friction drive?

Thanks for the connect on DA Graphite, he was very helpful. Its nice to talk to someone interested in your project rather than focusing only on the big fish with tall coin to spend. We had an interesting talk about how, for a relatively cheap substance, carbon fiber is a seldom used material. Oh wel...
by etard
Oct 17 2008 1:45pm
Forum: E-Bike Technical
Topic: Help me pick an outrunner for my next project
Replies: 19
Views: 2637

Re: Help me pick an outrunner for my next project

EvTodd,

There is alot of used AXI's and Hackers on rcgroups.com for sale forum, theres also alot of 30-40 amp controllers too. I missed a few HV-85's and HV-110's that sold before I discovered them. If you use one of the lower voltage controllers, what battery setup are you planning on running?
by etard
Oct 16 2008 5:50pm
Forum: E-Bike Non-hub Motor Drives
Topic: Why not friction drive?
Replies: 85
Views: 16712

Re: Why not friction drive?

So I have one RC SMART 560 KV motor, 80amp ESC, and I've contacted DA Graphite about what I need strengthwise (carbon fiber is relatively cheap). I have some gnarled bmx pegs coming, not sure of the diameter. I went ahead and also ordered some Goped drive spindles which come in sizes .600 inch to .8...
by etard
Oct 15 2008 7:29pm
Forum: E-Bike Non-hub Motor Drives
Topic: Why not friction drive?
Replies: 85
Views: 16712

Re: Why not friction drive?

Evtodd, See thats what I was thinking too, just piggyback a single motor with either a belt drive (ha, I get another free reduction in gearing!), or with direct gears (noisy?). Then I thought about the loss of efficiency of any drive...... Will the extra reduction make up for it in torque? Or is a d...
by etard
Oct 15 2008 5:10pm
Forum: E-Bike Non-hub Motor Drives
Topic: Why not friction drive?
Replies: 85
Views: 16712

Re: Why not friction drive?

For me the money isnt so much the issue, and all I hear is castle creations, nothing else works right. I want dependability. Anywayz, I am having problems with mounting the roller setup because of pedal clearance. My remedy: Attach the motor assembly to 2 carbon fiber rods that run to a mount at the...
by etard
Oct 14 2008 9:07pm
Forum: E-Bike Non-hub Motor Drives
Topic: Why not friction drive?
Replies: 85
Views: 16712

Re: Why not friction drive?

OK, I'm pulling the trigger. I'm getting two of these: http://www.castlecreations.com/products/phoenix_hv_series.html Two of these: http://cgi.ebay.com/RC-Airplane-Model-560-RPM-V-Outrunner-Brushless-Motor_W0QQitemZ300258577217QQihZ020QQcategoryZ34055QQtcZphotoQQcmdZViewItemQQ_trksidZp1742.m153.l126...
by etard
Oct 14 2008 7:23pm
Forum: E-Bike Non-hub Motor Drives
Topic: Why not friction drive?
Replies: 85
Views: 16712

Re: Why not friction drive?

Would you recommend the lower rpm/v motor like the 560 or would you go a little higher? I did some visual measurements, and it seems that I will want a motor with minimal length if I go 2 motors on 1 roller cuz a wide setup will interfere with my heel on the upward stroke while pedalling. Unless, I ...
by etard
Oct 14 2008 6:04pm
Forum: E-Bike Non-hub Motor Drives
Topic: Why not friction drive?
Replies: 85
Views: 16712

Re: Why not friction drive?

Those Frenchmen are using some huge motors :shock: ! I think that a clip in mount on my rear triangle(full suspension), with a servo like Recumpence says that will squeeze the motors' rollers together when more throttle is applied would work perfect. Now, if you could just incorporate an anti-slip c...
by etard
Oct 12 2008 2:37pm
Forum: E-Bike Non-hub Motor Drives
Topic: Why not friction drive?
Replies: 85
Views: 16712

Re: Why not friction drive?

Great discussion guys! Now, Fechter mentioned a setup that increased the pressure of the roller as torque permitted, that seems like it would solve tire slippage on steep inclines. Does anybody have a pic or patent link that I could see to understand how this works? Drunkskunk, can you explain furth...
by etard
Oct 10 2008 1:20pm
Forum: Battery Technology
Topic: Another 36V Li-ion Battery : BOSCH !!
Replies: 106
Views: 15502

Re: Another 36V Li-ion Battery : BOSCH !!

Hey tom, I would be willing to buy those batteries on ebay like you say, but have you guys confirmed the quality of these batteries, and what max amp they will safely put out? Also, how long does it take to charge each battery? Are these plug n play, or do you have to do some bms customization? Some...
by etard
Oct 10 2008 11:49am
Forum: E-Bike Non-hub Motor Drives
Topic: Why not friction drive?
Replies: 85
Views: 16712

Re: Why not friction drive?

Thanks Fechter, always spot on and informative. I wonder if it would be possible to match up a roller with the repetitive pattern of the tread on a mountain bike tire, and in essence you cog directly to the tire. :idea: If I could get the whole package (batt., controller, motor, etc...) down to unde...
by etard
Oct 09 2008 5:17pm
Forum: E-Bike Non-hub Motor Drives
Topic: Why not friction drive?
Replies: 85
Views: 16712

Why not friction drive?

I live in Southern California where it rains maybe 30 days a year. I know that a friction drive sux in the rain, but is it really that bad considering efficiency? I heard that it only requires about 5 pounds pressure against the tire and if you use a 1 inch wheel, you are getting a 26:1 gear ratio. ...
by etard
Oct 09 2008 4:43pm
Forum: E-Bike Build Threads / Photos & Video
Topic: The Linear (recumbent) Booster
Replies: 53
Views: 13566

Re: The Linear (recumbent) Booster

You know the 36 volt drills put out around 600 in/lb torque, that seems to be enough for our application. has anybody thought about using a dewalt or other drill to power thier bike? I live in a dry climate, so I was thinking about using one with plug n play batteries in a friction type drive. I cou...
by etard
Oct 03 2008 2:51pm
Forum: E-Bike General Discussion
Topic: Front fork failure
Replies: 31
Views: 4945

Re: Front fork failure

I had the fork dropouts just rip right off. Brand new forks :evil: You have to be careful when accelerating from a stop, cause thats where the maximum torque forces are. I only had the stock WE BL36 torque arms, which aren't sufficient. The dropouts on aluminum forks just aren't built for the twisti...
by etard
Oct 03 2008 2:15pm
Forum: E-Bike General Discussion
Topic: Big mountain race today on my 100V 5305
Replies: 31
Views: 3016

Re: Big mountain race today on my 100V 5305

I don't get where the competition comes from, these guys pedaling? Do you even need to pedal, or regen with 100v? Is it a paved road or trail?
by etard
Sep 27 2008 9:40pm
Forum: E-Bike General Discussion
Topic: Could I get some ideas?
Replies: 19
Views: 1672

Re: Could I get some ideas?

Since your chainstay is rectangular, maybe you could use a tap and die set to screw your mounting screws directly onto the chainstay. I dont know whether or not this would weaken the chainstay or not, but it would seem the screws fills in the metal, so maybe not. Also, why do you need a chain tensio...
by etard
Sep 26 2008 2:18pm
Forum: Battery Technology
Topic: lifeP04 48v 20Ah compare - Cammy Vs Ping
Replies: 55
Views: 9101

Re: lifeP04 48v 20Ah compare - Cammy Vs Ping

What happened to vaporthug? I think the obvious winner is ping because he has stuck his reputation on the line and cammy is nowhere to be seen. Lets have a followup. :roll:
by etard
Sep 26 2008 12:42pm
Forum: E-Bike General Discussion
Topic: Luke Sidewalker
Replies: 1
Views: 391

Luke Sidewalker

Anybody got any ideas for one of these? It has 26" rims and I see an RC motor mounted friction drive, or a nexus chain drive.
http://images.craigslist.org/1f5136148Z ... bb1332.jpg
What do you see?