Search found 953 matches

by EVTodd
Oct 25 2015 8:17pm
Forum: E-Bike Reviews & Testing
Topic: 2016 Haibikes are looking gooood
Replies: 20
Views: 3973

Re: 2016 Haibikes are looking gooood

Around here, (USA), it's less mixing with non ebikes on paths and more dodging cars, and maintaining 25 to 30mph is nice for keeping in a space between cars instead of constantly being passed. The car-dooring risk goes up of course... You need a motorcycle or scooter then. I almost can't believe I ...
by EVTodd
Oct 23 2015 6:15pm
Forum: E-Bike Technical
Topic: Is my wheel going to explode?!?!
Replies: 32
Views: 2609

Re: Is my wheel going to explode?!?!

999zip999 wrote:Why do you have to go so fast ?
Good question... Wait... That wasn't a question for me was it? This is a 20 mph bike. Certainly not built for speed.
by EVTodd
Oct 23 2015 1:04pm
Forum: E-Bike Technical
Topic: Is my wheel going to explode?!?!
Replies: 32
Views: 2609

Re: Is my wheel going to explode?!?!

Well, I've got over 12K miles on the first wheel I built using my 1000W hub motor, 12g spokes, and Weinmann DH39 rim. I'm 270lbs, had the bike over 60 mph, airborne, etc., but generally ride under 15mph. I did get one broken spoke at ~10K miles, but have never had one come loose in all those miles....
by EVTodd
Oct 22 2015 10:40pm
Forum: E-Bike Technical
Topic: Is my wheel going to explode?!?!
Replies: 32
Views: 2609

Re: Is my wheel going to explode?!?!

Just a quick update. I've put around 600 miles on this bike and the spokes so far are exactly the same as the day I put the wheel together. I have to admit I'm proud of my first wheel build! :D It will be interesting to see if they loosen up around 1000 miles as someone mentioned. As a side note, I ...
by EVTodd
Oct 21 2015 10:57pm
Forum: E-Bike Reviews & Testing
Topic: 2016 Haibikes are looking gooood
Replies: 20
Views: 3973

Re: 2016 Haibikes are looking gooood

The number one factor steering people away from the Haibike at our place is the 20mph top speed. For those that want to pavement ride to the start of a trail it's way too slow. Unlocking dongle sales are picking up though.... That's too bad but it doesn't surprise me. I personally think 20 mph is p...
by EVTodd
Oct 18 2015 11:12pm
Forum: E-Bike Technical
Topic: Building lipo Pack Question
Replies: 33
Views: 3124

Re: Building lipo Pack Question

Simonvtr wrote:Sorry then I don't understand what do you mean by .10 out.
When I look at cell 1 at 4.18 and cell 6 is 4.22 to me that is over .10?

But then again I do not understand why 3 different device reading is so different from each other?
4.22 - 4.18 = .04
by EVTodd
Oct 17 2015 10:32am
Forum: E-Bike Reviews & Testing
Topic: 2016 Haibikes are looking gooood
Replies: 20
Views: 3973

Re: 2016 Haibikes are looking gooood

They do look amazing. I know I've bitched about the prices on Haibikes before but I would probably still consider one. Looks like there are going to be a few clones coming out of China soon. That should be interesting.
by EVTodd
Oct 16 2015 8:35pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Your Creation's Before & After Pics
Replies: 1882
Views: 667334

Re: Your Creation's Before & After Pics

Here's mine, it's not done yet, few more touch up to complete....well it will never get done to be honest, I will always find something to upgrade.... Because the frame is so small, 15", I had a hard time finding a battery that would fit. My first battery was a LifePo4, 48V25Ah so it was big and he...
by EVTodd
Oct 08 2015 1:24pm
Forum: Battery Technology
Topic: Battery Fire thread - stay away from LiPo Battery Packs
Replies: 6
Views: 1010

Re: Battery Fire thread - stay away from LiPo Battery Packs

OSET electric trials bike fire, nearly burned down his garage: http://www.trialscentral.com/forums/topic/57187-oset-lipo-fire-scary-near-miss/ SNIP: Oset Lipo Fire - Scary Near Miss Started by scottwitting, Sep 29 2015 12:06 PM Posted 29 September 2015 - 12:06 PM I thought I'd share a recent near m...
by EVTodd
Oct 02 2015 1:52pm
Forum: E-Bike General Discussion
Topic: eBike related abuse
Replies: 22
Views: 1927

Re: eBike related abuse

Had my first piece of eBike related abuse this morning on the way to work. I had a cyclist riding the other way on a 2-way bike path yell out to me "You will always be fat". Pretty funny really given we were probably about the same size and neither particularly overweight. Anyone else got some funn...
by EVTodd
Sep 29 2015 11:16am
Forum: General Discussion
Topic: MS Windows-7 screwed me, Linux/Ubuntu discussion
Replies: 71
Views: 6048

Re: MS Windows-7 screwed me, Linux/Ubuntu/Mint discussion

I have Windows 7 and Ubuntu 14.04 on 1 computer. I have Ubuntu, Backtrack and Mint on another computer. You know you can install an infinite number of operating systems on 1 computer. You don't need to buy another laptop. When you change the boot order to CD first, then put in the Ubuntu disk into ...
by EVTodd
Sep 27 2015 5:17pm
Forum: E-Bike Non-hub Motor Drives
Topic: Front wheel Friction drive
Replies: 35
Views: 12512

Re: Front wheel Friction drive

Something I've suggested before but I don't think anyone has tried yet, is to add a "brush" (like a floor scrubbing type with stiff bristles and a lot of surface area, long and narrow), somewhere before the roller on the back of the tire, mounted lengthwise such that it helps brush off mud and wate...
by EVTodd
Sep 27 2015 11:00am
Forum: E-Bike Non-hub Motor Drives
Topic: Front wheel Friction drive
Replies: 35
Views: 12512

Re: Front wheel Friction drive

As much as I like the knurled roller I use it probably won't help a lot in the wet. I think the sandpaper wrapped rollers might be better for that. I think the big problem is how much friction drive flings water everwhere. I gave up using it in the wet right away. Do you mean that you have slipping...
by EVTodd
Sep 25 2015 7:03pm
Forum: General Discussion
Topic: MS Windows-7 screwed me, Linux/Ubuntu discussion
Replies: 71
Views: 6048

Re: MS Windows-7 screwed me, Linux/Ubuntu/Mint discussion

I'm a huge fan of Ubuntu. Been using it for years. It's so nice to get rid of the virus called Windows. The big thing is, do you have software you HAVE to use in Windows? If not then I say go for it. I have a laser engraver/cutter that has software that runs under Windows. I have a cheap box running...
by EVTodd
Sep 24 2015 3:23pm
Forum: E-Bike Non-hub Motor Drives
Topic: Front wheel Friction drive
Replies: 35
Views: 12512

Re: Front wheel Friction drive

Any updates? 802km with the friction drive ! I didn't have time to make the video. A photo of the complete system : http://i21.servimg.com/u/f21/17/16/49/95/17_mot10.jpg Mounted on the bike : http://i21.servimg.com/u/f21/17/16/49/95/18_mot10.jpg It works perfectly when it's dry. But it slips when i...
by EVTodd
Sep 22 2015 12:18am
Forum: E-Bike Non-hub Motor Drives
Topic: Ebike Controller on Outrunner Friction Drive
Replies: 11
Views: 2298

Re: Ebike Controller on Outrunner Friction Drive

I finally got the cables soldered together to try the ebike controller on the outrunner. The motor runs in a very jerky fashion, but as its a motor the controller was never meant for I can't bee too surprised. I assembled a pivot mount that I'll be loctite-ing all the bolts on, waiting for the part...
by EVTodd
Sep 14 2015 5:49pm
Forum: E-Bike Build Threads / Photos & Video
Topic: PUCH Maxi electro build (4 offroad use)
Replies: 81
Views: 18652

Re: PUCH Maxi electro build (4 offroad use)

Very cool build! :D

I've been thinking about putting downhill front forks on my moped for a couple of years. How did you manage to get them to fit in the head tube? Was the head tube machined out to fit a larger headset?
by EVTodd
Sep 13 2015 12:02pm
Forum: E-Bike General Discussion
Topic: Careful buying ebay torque arms
Replies: 13
Views: 1378

Re: Careful buying ebay torque arms

I wouldn't say it's a common problem. The most important thing is not to use a torque arm with a 12mm slot on a 10mm axle. It will spin even though it appears tight and the steel is hardened. This one definitely didn't have a 12mm slot. Appeared to just be very sloppy tolerances. Looking on ebikes....
by EVTodd
Sep 12 2015 6:08am
Forum: E-Bike General Discussion
Topic: Careful buying ebay torque arms
Replies: 13
Views: 1378

Re: Careful buying ebay torque arms

I wouldn't say it's a common problem. The most important thing is not to use a torque arm with a 12mm slot on a 10mm axle. It will spin even though it appears tight and the steel is hardened. This one definitely didn't have a 12mm slot. Appeared to just be very sloppy tolerances. Looking on ebikes....
by EVTodd
Sep 11 2015 8:52pm
Forum: E-Bike General Discussion
Topic: Careful buying ebay torque arms
Replies: 13
Views: 1378

Careful buying ebay torque arms

I don't know if this has been discussed before but being a bit new to the whole hub motor thing I purchased a torque arm from ebay recently. It was listed to fit 10mm axles (flats) but it was so sloppy there's no way it would stop a hub from spinning out. Is this a common problem with cheap torque a...
by EVTodd
Sep 11 2015 8:32am
Forum: E-Bike Non-hub Motor Drives
Topic: Front wheel Friction drive
Replies: 35
Views: 12512

Re: Front wheel Friction drive

ferias77 wrote:More than 500 km with my friction drive, and it still works very well. :D
No visible tire wear. To be continued...
Nice! I'm glad it's working out for you. 8)

Using a smaller, separate roller like your setup really helps with keeping controllers alive too.
by EVTodd
Sep 02 2015 9:54am
Forum: E-Bike Non-hub Motor Drives
Topic: Front wheel Friction drive
Replies: 35
Views: 12512

Re: Front wheel Friction drive

Now I have to boost the S06P controler : 24V 14A (350W) is not enough, I would like to have 500W. .[/quote] Good stuff! The more power and smaller the roller, the happier you'll be. Looks like you're getting great efficiency. Now that I've finally built a hub motor bike I've found that I get almost ...
by EVTodd
Aug 28 2015 5:51pm
Forum: E-Bike Non-hub Motor Drives
Topic: Front wheel Friction drive
Replies: 35
Views: 12512

Re: Front wheel Friction drive

Looks great! I'm looking forward to hearing about your results.
by EVTodd
Aug 22 2015 9:17pm
Forum: Electric Watercraft
Topic: Another trolling motor project. Need controller advice.
Replies: 7
Views: 3341

Re: Another trolling motor project. Need controller advice.

Hey Todd, did you have any progress in your project? I'm curious about the results.. I ended up getting a general purpose pwm controller from Amazon. This one: http://www.amazon.com/RioRand-7-60V-Motor-Controller-Switch/dp/B00JEXJXAC/ref=sr_1_15?ie=UTF8&qid=1440295946&sr=8-15&keywords=pwm+controlle...
by EVTodd
Aug 11 2015 10:59am
Forum: E-Bike Technical
Topic: Yescom Kit 36V Controller internals revealed
Replies: 15
Views: 1957

Re: Yescom Kit 36V Controller internals revealed

Any thoughts? Such controllers was used by the Greeks when attacked Troy, now we have them at the museums. Generally speaking most cheap hubs and their controllers are now museum exhibits. Only in the planet Mid-drive there is latest developed electronics technology. Wow, that's helpful. :roll: Oh ...