Search found 3808 matches

by Kingfish
Aug 22 2014 3:20am
Forum: Motor Technology
Topic: Motor Material Choice
Replies: 12
Views: 666

Re: Motor Material Choice

OK, I have to ask: What are you building that requires 600 Nm of torque? :)

~KF
by Kingfish
Aug 20 2014 1:37pm
Forum: E-Bike Technical
Topic: How to get the smell out ? - Chargers.
Replies: 6
Views: 545

Re: How to get the smell out ? - Chargers.

That phenolic "smell" is from an unwashed board, and common attribute from low-cost assembly plants. Try spraying down the board using a standard no-residue pcb cleaner and let it air-dry outside for a day in the sun and away from any open windows. All my controllers have that smell, but I rarely ha...
by Kingfish
Aug 20 2014 1:21pm
Forum: E-Bike Technical
Topic: What tire can cope the ebike punishment?
Replies: 25
Views: 2422

Re: What tire can cope the ebike punishment?

Since you don't want to go moto or moped tire, though more battery so you don't run out of juice (bad for cycle life anyway) is the better answer, then ride faster to get away from the side of the road where all the tire flattening crap is. I agree with this: Ride faster to get out of the lane of c...
by Kingfish
Aug 20 2014 1:11pm
Forum: Motor Technology
Topic: Motor Material Choice
Replies: 12
Views: 666

Re: Motor Material Choice

Agreed: Don't use CF (or Aluminum) anywhere near electrical fields or you will be conducting levels of alternating current relative to proximity. I like the idea of Plywood as an alt to FR-4 :wink: Clever! However - I wonder what the thermal limits would be. I suppose it would be at least to the cur...
by Kingfish
Aug 20 2014 12:35pm
Forum: E-Bike General Discussion
Topic: Comments from strangers about your bike
Replies: 184
Views: 15049

Re: Comments from strangers about your bike

Good posts AW :)

Jerks are everywhere. So are nice people. KF
by Kingfish
Aug 20 2014 12:15pm
Forum: E-Bike General Discussion
Topic: Aerodynamics
Replies: 304
Views: 34191

Re: Aerodynamics

I highly recommend these type of center bars if you go to drop bars. Tons of adjustment / hand positions and notably faster / more comfortable while riding in a lower position. You may need a few throttles / buttons and maybe add some cross brake levers to them if you are in traffic areas often. ht...
by Kingfish
Aug 20 2014 4:10am
Forum: E-pic Topics
Topic: 4500+ Miles US Ebike Tour - August 2014
Replies: 490
Views: 63266

Re: 4500+ Miles US Ebike Tour - August 2014

Thanks kf. You're name certainly comes to mind when I think hard-core ebike tourer. What's the longest day that you've done? i Longest day on the 2nd California Trip: MAP: Tuesday, August 9th, 2011 Pioneer-Fresno By the end of the day I was definitely suffering from effects of both dehydration and ...
by Kingfish
Aug 19 2014 12:08pm
Forum: E-pic Topics
Topic: 4500+ Miles US Ebike Tour - August 2014
Replies: 490
Views: 63266

Re: 4500+ Miles US Ebike Tour - August 2014

Hang in there Troy! 8) I had the hardest time dealing with heat in August, and in particular – the day I had the flat tire during a severe scorcher; a 15-hour day outside that began before sunrise and ended in complete darkness after 187 mountainous miles. Simple tricks: Always carry plenty of water...
by Kingfish
Aug 18 2014 12:22pm
Forum: General Discussion
Topic: MS Windows-7 screwed me, Linux/Ubuntu/Mint discussion
Replies: 53
Views: 2989

Re: Microsoft just updated, and I lost a long thoughtful rep

Some ideas from a professional developer: I compose in Word . Not even the latest version – 2010. When Windows updates, it can force-close, but I prefer it to ask me first, which arrests the forced-restart most of the time. There are some updates that are optional, and some that are required. Eventu...
by Kingfish
Aug 18 2014 11:16am
Forum: Alternative Energy
Topic: Building The World's Largest Thermal Solar Plant
Replies: 46
Views: 8355

Re: Building The World's Largest Thermal Solar Plant

Emerging solar plants scorch birds in mid-air IVANPAH DRY LAKE, Calif. — Workers at a state-of-the-art solar plant in the Mojave Desert have a name for birds that fly through the plant's concentrated sun rays -- "streamers," for the smoke plume that comes from birds that ignite in midair. Federal w...
by Kingfish
Aug 16 2014 1:48pm
Forum: E-vents
Topic: Aug 19th: e-Bike World Record Attempt Sendoff in Missoula MT
Replies: 10
Views: 2146

Re: Aug 19th: e-Bike World Record Attempt Sendoff in Missoul

In the chase van, I would also include a sensorless 6-FET controller as a back-up, a spare throttle, definitely a digital multi meter (DMM), perhaps a butane burning soldering iron? ^ +1 hehe My soldering iron was electric, but the rest was very much the same... and I carried it with me packed in t...
by Kingfish
Aug 11 2014 10:47am
Forum: E-Bike Technical
Topic: Pusher electric trailer.
Replies: 14
Views: 1021

Re: Pusher electric trailer.

I bought a BOB IBEX for just that idea. Before attempting any mods, I gave it a trial run – hauling a load of groceries from my local… and I was not impressed. Never used it again; it remains stored in the back room. :( Decided to built my own trailer using a “jumper” frame . It had some issues that...
by Kingfish
Aug 08 2014 11:19am
Forum: EV Business World
Topic: Big Batteries to Boost the Electric Grid
Replies: 4
Views: 917

Re: Big Batteries to Boost the Electric Grid

^ +1 Me like; it speaks to my inner greenessness :mrgreen:

Although they did not speak about industrial battery capacity per se,
that is the first time I've heard someone claim we're over 25% peak in renewables in certain regions - and growing.

Thanks for posting 8)
Optimistic, KF
by Kingfish
Aug 06 2014 1:41am
Forum: Battery Technology
Topic: Making a Bulk Travel Charger (edit)
Replies: 19
Views: 1834

Re: Making a Bulk Travel Charger (edit)

DB, I just picked up a RSP-1500-48. Wondering if it is possible to replace one of the resistors with a pot and adjust output current that way??? Dude! I haven't found a schematic for that online yet, but if you like - we could reverse one from the circuit board and narrow down where it might be pos...
by Kingfish
Aug 06 2014 1:29am
Forum: Battery Technology
Topic: converting meanwell power suply into Lipo charger
Replies: 376
Views: 46904

Re: converting meanwell power suply into Lipo charger

Dang this is an old thread! :lol: DrkAngel : Ah! Read your threads; especially appreciated the S-350-48 8) Here’s all that I know: Configuring a Meanwell 84V charger ( this information has been superseded by the thread below ) How-To: Meanwell 63-84V CV/CC Charger (better...) Review: Meanwell HRP-60...
by Kingfish
Aug 05 2014 2:39pm
Forum: EV Business World
Topic: Big Batteries to Boost the Electric Grid
Replies: 4
Views: 917

Big Batteries to Boost the Electric Grid

Big Batteries Are Starting to Boost the Electric Grid Long hailed as a game changer that will allow unlimited amounts of wind and solar energy onto the electric power grid, big rechargeable batteries are beginning to move out of research labs and find a home amid the real-world tangle of smokestack...
by Kingfish
Aug 03 2014 12:06pm
Forum: E-Bike General Discussion
Topic: 3 phase or 6 phase motor?
Replies: 8
Views: 1288

Re: 3 phase or 6 phase motor?

https://www.basilnetworks.com/article/motors/images/motor2pole.gif The short answer is that the graphic is a super simple 3-phase motor. A 6-phase will have double the amount of teeth although connected independently of the 3-phase. It's possible to use 2 controllers, although there are some that e...
by Kingfish
Aug 01 2014 2:22pm
Forum: General Discussion
Topic: Time for a new PC.. could use some advice.
Replies: 23
Views: 2095

Re: Time for a new PC.. could use some advice.

5 years! Lucky you. My previous has been going on 7 years with Win7. Just bought a new gaming box last winter running Win8: This system uses SSD and I have been extremely pleased with the performance. For your main memory -> 8GB is the minimum for what you intend; you should be fine unless you open ...
by Kingfish
Aug 01 2014 1:37pm
Forum: E-Vehicles General Discussion
Topic: operation drive and recharge. possible?
Replies: 30
Views: 2538

Re: operation drive and recharge. possible?

OP: The primary thing of value that I took from your experiment is the observation of how much energy was produced by the “generator” -> which I took to be the main point of the thread… AND NOT to create a perpetual motion device. :) …what would happen if I fed this back into the battery pack? This ...
by Kingfish
Jul 31 2014 5:51pm
Forum: General Discussion
Topic: My Other Project
Replies: 5
Views: 384

Re: My Other Project

Update: I decided to forego the X-clamp update after much reading about the E74 error -> Nearly everything I have read & watched that was not some amateur gibberish says the culprit is the H(ANA) Chip that handled the A/V signals with the cable and is also located close to the Graphics chip althoug...
by Kingfish
Jul 31 2014 1:16pm
Forum: Motor Technology
Topic: SPICE: Defining Components
Replies: 4
Views: 625

Re: SPICE: Defining Components

OK, I did a bit more digging. There are two solutions to the SPICE problem: 1. Easiest is to keep searching the web for a SPICE file matching the component. For International Rectifiers , I lucked out and found this page that handily carries a link to a SPICE (spi) file. With a little bit of work I ...
by Kingfish
Jul 30 2014 8:58pm
Forum: General Discussion
Topic: My Other Project
Replies: 5
Views: 384

My Other Project

I have several other irons in the fire. When not working on ebike – I am dabbling in other areas. At present a project that has taken over my work space is the R&R of my XBox 360 . A week ago last weekend it went belly-up and gave me the E74 Error Code which translates to “a bad AV cable”. What nons...
by Kingfish
Jul 30 2014 3:42pm
Forum: Motor Technology
Topic: SPICE: Defining Components
Replies: 4
Views: 625

Re: SPICE: Defining Components

try IRFB4110 Oh thanks Dennis for that! :D I found it in the LT Library just fine - but cannot locate where it is defined in the standard.mos file. Very odd :? Also found this: IRFB4110 Spec that has a link to an SPI-type SPICE definition. Although I would still like to know how to map the LTSpice ...
by Kingfish
Jul 30 2014 2:14pm
Forum: General Discussion
Topic: Amazon plans to use drones!!!
Replies: 65
Views: 7760

Re: Amazon plans to use drones!!!

China's drone king says the revolution depends on regulators Click for Reuters video Comparing his current crop of drones to early personal computers, DJI founder Frank Wang says the industry is poised for a growth surge - assuming regulators in more markets clear it for take-off. Pretty neat updat...
by Kingfish
Jul 30 2014 1:20pm
Forum: Motor Technology
Topic: SPICE: Defining Components
Replies: 4
Views: 625

SPICE: Defining Components

Greetings – I would like to map out the IRFP4110 MOSFET to SPICE. I am using LTSpice, however the definition is not available. Instead – I borrowed another component within the library that is similar and reverse the model back to map with the spec sheet and kindly ask The Forum to check my work. In...