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by methods
Sep 18 2019 4:12pm
Forum: Items for Sale - Used
Topic: 24FET 4110 Controller Modified Lyen MII Edition
Replies: 8
Views: 585

Re: 24FET 4110 Controller Modified Lyen MII Edition

You have Motor Reliability You have Controller Reliability If you want to create Torque then the first thing to consider is Gear Ratio. This means wheel diameter and KV of motor and Voltage You need all 3 to make a statement The second thing to think about is Squared Losses Current Squared = Heat Sp...
by methods
Sep 18 2019 3:57pm
Forum: E-Bike Non-hub Motor Drives
Topic: Most reliable Mid drive motor kit?
Replies: 16
Views: 779

Re: Most reliable Mid drive motor kit?

Folks were doing mid-drive kits with 2 stages and belts a long time ago.
Bought a trike from a guy who was experimenting heavily
Not sure where all that went.

Belts are nice. . .

-methods
by methods
Sep 18 2019 3:55pm
Forum: E-Bike Technical
Topic: XCYC Pickup: love child of an ebike and an F-150
Replies: 16
Views: 537

Re: XCYC Pickup: love child of an ebike and an F-150

Any time. I am not in the ethos anymore so the best I can do is vomit up the culmination of years of testing. That is the truth of my testing. Bikes, Trikes, you name it. I am 6'2 and about 185lbs I started with no bike experience to speak of I built apx 40 bikes I rode until my ass was numb Never g...
by methods
Sep 18 2019 3:52pm
Forum: Battery Technology
Topic: Battery jungle, Lipo, 18650 or 21700 help please.
Replies: 30
Views: 685

Re: Battery jungle, Lipo, 18650 or 21700 help please.

[/quote] Can you please tell me where did you got those pogo's from, I had been looking and can't find them...but I like them. :D [/quote] Those pogos pictured were from VooPoo, a manufacturer of Vape products. The pogo's I have previously posted are produced by Mill-Max I have no experience with th...
by methods
Sep 18 2019 3:49pm
Forum: Battery Technology
Topic: Battery jungle, Lipo, 18650 or 21700 help please.
Replies: 30
Views: 685

Re: Battery jungle, Lipo, 18650 or 21700 help please.

wow, that is quite a load of assumptions. prehaps one should ask questions and/or properly read instead of making assumptions. pretty sure you are ignoring half of my previous post. ps: i never glued a pack in my life and telling people to use hundreds of individual cell holders instead of spot wel...
by methods
Sep 17 2019 11:34am
Forum: Battery Technology
Topic: Battery jungle, Lipo, 18650 or 21700 help please.
Replies: 30
Views: 685

Re: Battery jungle, Lipo, 18650 or 21700 help please.

(late reply) Ok - I do not wish to argue any further with Flippy. He reminds me too much of Liveforphysics and has glue packed batteries. I will leave and you can have final say.. . . . Every time we start a new industry someone like flippy turns up. He appears to have useful information His informa...
by methods
Sep 17 2019 11:14am
Forum: Battery Technology
Topic: Battery jungle, Lipo, 18650 or 21700 help please.
Replies: 30
Views: 685

Re: Battery jungle, Lipo, 18650 or 21700 help please.

Screaming hu? I will consider that a bow. Ok, we can now engage. :) Flippy, So you are a professional pack builder and you have a database? Presumably statistically significant data about the reliability of the packs you have assembled to some specification or standard? How many packs have you built...
by methods
Sep 17 2019 10:05am
Forum: Items Wanted
Topic: WTB Alltrax controller
Replies: 4
Views: 236

Re: WTB Alltrax controller

I am looking for the front wheel from the same vintage. Works out to about a 20" bicycle rim (which I think is a 17" motorcycle rim) It rides on a shaft, I would have to go measure to see the diameter - 20mm or 1/2" I have one (or had one) Intention is to put it on a Tadpole Trike so when I ride on ...
by methods
Sep 17 2019 10:02am
Forum: Items Wanted
Topic: WTB Alltrax controller
Replies: 4
Views: 236

Re: WTB Alltrax controller

I have 3 or 4 of those from the dumpster and from test rigs.
If you are in or near Santa Cruz County contact me and I will provide one for free.

-methods
by methods
Sep 16 2019 6:51pm
Forum: Stand-up E-scooters and E-skateboards
Topic: Winter Project... Design and Build an eScooter
Replies: 38
Views: 3123

Re: Winter Project... Design and Build an eScooter

Sick Project Man!

This is what forums are made of. Thanks for contributing. Reminds me of back in the day. . .

-methods
by methods
Sep 16 2019 6:49pm
Forum: E-Bike Non-hub Motor Drives
Topic: Most reliable Mid drive motor kit?
Replies: 16
Views: 779

Re: Most reliable Mid drive motor kit?

I worked with some of the early Mid-Drive equipment. It SUCKED Looking around now. . . (not at kits but parts on the road) In Santa Cruz we are converging on 50-50 Ebikes for Standard Bikes (not a joke!!!) Most are actually mid-drive High end Shop Purchased I would say... 3:1 mid drive around here. ...
by methods
Sep 16 2019 6:45pm
Forum: Forum Rules and Features
Topic: The future of our forum - facebook versus web forums
Replies: 65
Views: 7334

Re: The future of our forum - facebook versus web forums

There is probably no greater divide than the gap between Twitter, Facebook, Instagram, ... and other self-masturbation websites ... and a good Public Forum focused around a common interest. I think the Public Forum has probably opened more intellectual doors for me than any other source. The key is ...
by methods
Sep 16 2019 6:39pm
Forum: General Discussion
Topic: Epic fail- tried to pull out a tree stump, dug it out in 45 min- pulse 144
Replies: 30
Views: 855

Re: Epic fail- tried to pull out a tree stump

eee291 wrote:
Sep 11 2019 1:02pm
Oh yea . . . that was last night.
Forwarding this to my wife

-methods
by methods
Sep 16 2019 6:37pm
Forum: General Discussion
Topic: Epic fail- tried to pull out a tree stump, dug it out in 45 min- pulse 144
Replies: 30
Views: 855

Re: Epic fail- tried to pull out a tree stump, tried using chain saw

Flippy is talking about sodium metabisulfite Vinigar may work, but the above chemical is sold at Home Depot specifically for killing root systems. We use it for dropping gold out of solution 1380704558896691-768x576.jpg Fishing_0003-768x574.jpg 1416670195300127-768x574.jpg Fishing_0035-768x574.jpg A...
by methods
Sep 16 2019 6:23pm
Forum: Battery Technology
Topic: Battery jungle, Lipo, 18650 or 21700 help please.
Replies: 30
Views: 685

Re: Battery jungle, Lipo, 18650 or 21700 help please.

InStock.png Maybe they are not in stock in your part of the world, but here they are in stock here. I did no shopping .. . just searched for what I know worked 1000 years ago as a "starting point" (Ebike is like RC... information usually goes bad quickly... so I do not know what is currently "best"...
by methods
Sep 16 2019 1:11pm
Forum: Battery Technology
Topic: Battery jungle, Lipo, 18650 or 21700 help please.
Replies: 30
Views: 685

Re: Battery jungle, Lipo, 18650 or 21700 help please.

Agreed that cans have a better failure mode. Even better, LiFe cans. They just out-gas and that is it. I have seen epic fireballs from reversed pouch cells. I was once turning over a 5.2L V8 with 4 or 8Ah of 4S 20C and this is what happened: 4_20_2018_014.jpg One pouch erupted The solvents caught fi...
by methods
Sep 16 2019 12:55pm
Forum: Electric Watercraft
Topic: Help Needed with Fastest possible Electric JetSki Conversion
Replies: 10
Views: 4579

Re: Help Needed with Fastest possible Electric JetSki Conversion

Hello, I am sorry if I am posting this request for help in the wrong section but I am very serious about completing my own jetski conversion. ..... Johnny The only review I ever heard, from an expert, of an actual electric Jet Ski implementation was that it was underwhelming. Going on that singular...
by methods
Sep 16 2019 12:46pm
Forum: Electric Aircraft
Topic: Sevcon Gen 4 Errors and Solutions thread
Replies: 43
Views: 6238

Re: Sevcon Gen 4 Errors and Solutions thread

Good luck with the Sevcon guys. . . I wrote a lot, in a lot of threads, and it is mostly garbage. . . but in there you will find some themes. It may be worth your time to sift for nuggets. See where I went wrong over and over. Be very disciplined about how you mix the files, how you back up changes,...
by methods
Sep 16 2019 12:38pm
Forum: E-Bike Build Threads / Photos & Video
Topic: Your Creation's Before & After Pics
Replies: 1850
Views: 604004

Re: Your Creation's Before & After Pics

I forgot how rad this forum is. This thread is the sort of thing that gets people hooked. IMAG0448.jpg I hate to spoil it for everyone. .. but this is clearly the baddest bike on the forum right now. See how I have that battery case mounted so it stops me from pedaling??? and... that is the famous c...
by methods
Sep 16 2019 11:59am
Forum: E-Bike Technical
Topic: XCYC Pickup: love child of an ebike and an F-150
Replies: 16
Views: 537

Re: XCYC Pickup: love child of an ebike and an F-150

My decision matrix looks about like this: First - gotta ride one. The most is learned from a ride. Feel the torque Feel the steering Feel the braking Feel the weight Feel the geometry I am a stickler for RWD and that boils down to uphill traction both on smooth surfaces as well as dirt. FWD will alw...
by methods
Sep 16 2019 11:35am
Forum: Battery Technology
Topic: Battery jungle, Lipo, 18650 or 21700 help please.
Replies: 30
Views: 685

Re: Battery jungle, Lipo, 18650 or 21700 help please.

If you are from the RC world just go to Hobby King and grab some 6S packs. Rig them up Series Parallel and zip-tie them to the frame. You will be riding in hours. . . Then just keep them reasonably balanced and bulk charge. 18650 and all the can solutions require TONS of work building them up. I use...
by methods
Sep 16 2019 11:24am
Forum: Items for Sale - Used
Topic: 24FET 4110 Controller Modified Lyen MII Edition
Replies: 8
Views: 585

Re: 24FET 4110 Controller Modified Lyen MII Edition

Bet that thing hammers. I have not kept up over the years but I think a lot of folks are moving toward smaller controllers with more advanced functionality. Lets see... https://www.ebikes.ca/shop/electric-bicycle-parts/controllers.html Hmmm... Skimming I see a lot of words like "Waterproof" and "Fie...
by methods
Sep 16 2019 11:18am
Forum: Technical Reference Area
Topic: Using EV Chargers
Replies: 95
Views: 4659

Re: Using EV Chargers

What Else. . . I was contacted by some strange German Man regarding this thread. He came on nice then started ranting in his foreign tongue. I had to use Google Translate. . . and when I did... it was quite entertaining. :lol: I encourage the use of COLORFUL LANGUAGE when you feel the need to expres...
by methods
Sep 16 2019 11:14am
Forum: Technical Reference Area
Topic: Using EV Chargers
Replies: 95
Views: 4659

Re: Using EV Chargers

UPDATE: I have had paying work so the parts I bought for this project are rotting under my desk. The good news is that I have been doing ACTUAL DESIGN work lately... so I am all tuned up with what will be needed to succeed at this project. I talked to an enthusiast who has worked on similar systems ...
by methods
Sep 16 2019 11:01am
Forum: EV Business World
Topic: JUMP bikes surprise $25 chargest (back to back)
Replies: 2
Views: 189

Re: JUMP bikes surprise $25 chargest (back to back)

Thanks for the tip. I have never sued anyone in my life and Lawyers, as a whole, disgust me as blood thirsty sharks. I know only a handful of lawyers who seem to have passed their Ethics Exam. . . and the rest are struggling with CONFLICT OF INTEREST. Your... Points... Are taken tho. I agree that yo...