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Forum: Electric Projects Today, 08:35 AM
Replies: 25
Views: 173
Posted By Functional Artist
Your project is lookin' good :thumbsup: ...

Your project is lookin' good :thumbsup:

Yup, your wiring plan seems correct :cheers2:

IMO
Before incorporating a "jack shaft", I would try the "direct drive" approach first
…& see what...
Forum: Go Kart Discussion 12-05-2019, 09:47 AM
Replies: 13
Views: 226
Posted By Functional Artist
Still researchin' :thumbsup: …& found a neat...

Still researchin' :thumbsup:
…& found a neat article :cheers2:

"The History of Go Kart Mfg. Co.
as recounted by Don Boberick (9/18/98):

As to Go Kart Manufacturing, Co. Inc., it came into...
Forum: Go Kart Discussion 12-05-2019, 08:04 AM
Replies: 13
Views: 226
Posted By Functional Artist
Well, lookie here, I found another one right here...

Well, lookie here, I found another one right here on the forum (from back in 2010) :thumbsup:

Seems to be an older one (1960ish) before they added the "live axle" :cheers2:
...
Forum: Go Kart Discussion 12-05-2019, 07:30 AM
Replies: 13
Views: 226
Posted By Functional Artist
I found a few more ads …& a couple of more pics...

I found a few more ads
…& a couple of more pics :thumbsup:
Forum: Go Kart Discussion 12-04-2019, 09:35 PM
Replies: 13
Views: 226
Posted By Functional Artist
Kool! :thumbsup: Please post some pics of...

Kool! :thumbsup:

Please post some pics of it, if you can :cheers2:


I tried something different :idea2:
…& took pics of the pics :huh:
...a little bit more legible :lolgoku:
Forum: Go Kart Discussion 11-29-2019, 11:35 AM
Replies: 13
Views: 226
Posted By Functional Artist
Thanks for tryin' :cheers2: Lookin'...

Thanks for tryin' :cheers2:

Lookin' further, I found a couple videos of a restored one :thumbsup:
...more info too

It seems like the ones designated Hellcat had a single engine
…& the...
Forum: Go Kart Discussion 11-29-2019, 10:41 AM
Replies: 13
Views: 226
Posted By Functional Artist
Yup, I wish I could read that ad too :thumbsup: ...

Yup, I wish I could read that ad too :thumbsup:

:idea2: maybe someone can fix/enlarge it for us :cheers2:
Forum: Build Off Contest Main Area 11-29-2019, 10:36 AM
Replies: 16
Views: 237
Posted By Functional Artist
Even if not cracked (yet) IMO the design &...

Even if not cracked (yet) IMO the design & construction of those "spindles" don't look Heavy Duty enough for the dynamic stresses that can/will be applied :huh:
...especially by a 4 x 4 kart (off...
Forum: Go Kart Discussion 11-29-2019, 10:01 AM
Replies: 13
Views: 226
Posted By Functional Artist
Found one (post #36) :thumbsup: Donald E. Jones...

Found one (post #36) :thumbsup:
Donald E. Jones has/had one (thread is ~5 years old)
...looks to be a wild cat though (notice the rear trailing arms)...
Forum: Go Kart Discussion 11-28-2019, 11:58 AM
Replies: 13
Views: 226
Posted By Functional Artist
Percival's Hellcat

Been doin some research :thumbsup:
…& came across ads for this Percival's Hellcat

The ads say, its designed by Frank Kurtis (designer of Indy cars)
…& Rodger Ward (1959 Indy 500 winner) was a...
Forum: Electric Projects 11-24-2019, 12:03 PM
Replies: 10
Views: 177
Posted By Functional Artist
That's a nice little kart ya got there ...

That's a nice little kart ya got there :thumbsup:

Using an 11T drive gear & a 40T driven gear would only be ~3.6:1
(hence the jack shaft)

Usually in the 6:1 - 7:1 range is a good gear ratio...
Forum: Electric Projects 11-13-2019, 08:21 AM
Replies: 20
Views: 352
Posted By Functional Artist
I have found that these little motors generate...

I have found that these little motors generate different RPM's, depending on the direction of rotation
…& most (I have tested) seem to operate "more efficiently" when running clockwise. :thumbsup: ...
Forum: Electric Projects 11-13-2019, 07:26 AM
Replies: 20
Views: 352
Posted By Functional Artist
Yes, please post some pics of your set-up ...

Yes, please post some pics of your set-up :thumbsup:
...even draw (us) up a wiring diagram of how you have 'er wired :cheers2:
(good future reference for you too) :2guns:

Q:
Do both of your...
Forum: Go Kart Discussion 11-13-2019, 07:00 AM
Replies: 37
Views: 898
Posted By Functional Artist
Hey guys, Sid asked me to do a voltage test on...

Hey guys,
Sid asked me to do a voltage test on the sensor wires of (1) of my Boma motors
...so, we would have a point of reference, to go off of while troubleshooting this motor/controller. ...
Forum: Go Kart Discussion 11-06-2019, 06:59 PM
Replies: 262
Views: 10,247
Posted By Functional Artist
1) my ElMoto (electric motorcycle) is powered by...

1) my ElMoto (electric motorcycle) is powered by a 2kWh lithium battery pack (from a Chevy Volt)

2) building homemade lithium packs scare me :ack2:
...too many variables (differing cell...
Forum: Build Off Contest Build Logs 11-05-2019, 07:35 AM
Replies: 26
Views: 587
Posted By Functional Artist
Nice craftsmanship :thumbsup: Looks like it's...

Nice craftsmanship :thumbsup:
Looks like it's gonna be kinda heavy :smiley_omg:
...but, really nice work though :2guns:
Forum: Go Kart Discussion 10-27-2019, 10:06 AM
Replies: 262
Views: 10,247
Posted By Functional Artist
Hypothesis 5S1P (5 in series & 1 in parallel)

Why am I goin thru this long-drawn-out analogy? :huh:

The Massive Voltage Drop (~5V) that this motor is causing to happen to the battery pack, (on the Atom kart) is very concerning. :mad:...
Forum: Go Kart Discussion 10-26-2019, 11:24 PM
Replies: 262
Views: 10,247
Posted By Functional Artist
Advanced Milkshake Battery Theory

OK, now we'll set (2) milkshakes, next to each other
...& connect them together "in parallel" :cheers2:
(if ya stack 'em, that would be "in series") :cool:

In this scenario we would be...
Forum: Go Kart Discussion 10-26-2019, 07:19 PM
Replies: 37
Views: 898
Posted By Functional Artist
The first thing that concerns me is ...that...

The first thing that concerns me is
...that last pic (in previous post) seems to show the thick red wire labeled as Negative (-)
…& the thick black wire labeled as Positive (+)

This doesn't seem...
Forum: Go Kart Discussion 10-26-2019, 05:30 PM
Replies: 262
Views: 10,247
Posted By Functional Artist
Um, if ya do that ...ya get an ice cream...

Um, if ya do that
...ya get an ice cream head-ache :smiley_omg:
...don't ya? :lolgoku:

Maybe I should explain further ...now that my brain has thawed :roflol:

So, from what I...
Forum: Go Kart Discussion 10-25-2019, 11:58 AM
Replies: 262
Views: 10,247
Posted By Functional Artist
What?...How is a milkshake like a battery? :huh:...

What?...How is a milkshake like a battery? :huh:
...well it's just an analogy to help describe, "voltage drop" :thumbsup:

OK, that explains it:lolgoku:
...NOT really...that doesn't make it any...
Forum: Go Kart Discussion 10-25-2019, 08:00 AM
Replies: 37
Views: 898
Posted By Functional Artist
Please ...disconnect everything …spread all...

Please
...disconnect everything
…spread all of the connectors out separately
...number them
…& then list, by number, what is labeled on each connector :cheers2:

Kinda like in the pic below ...
Forum: Electric Projects 10-25-2019, 07:37 AM
Replies: 15
Views: 245
Posted By Functional Artist
It'll be like driving a brick :ack2: …& with...

It'll be like driving a brick :ack2:
…& with ALL of that weight in the rear, your probably gonna have "big time" understeering issues :huh:
…plus, just the (2) controllers are gonna be ~$400.00...
Forum: Go Kart Discussion 10-24-2019, 03:28 PM
Replies: 262
Views: 10,247
Posted By Functional Artist
Yup, that's what I was thinkin' too :thumbsup: ...

Yup, that's what I was thinkin' too :thumbsup:
...kinda like a milkshake? ;)
Forum: Go Kart Discussion 10-24-2019, 01:52 PM
Replies: 262
Views: 10,247
Posted By Functional Artist
I thought peak was just a momentary "high point"...

I thought peak was just a momentary "high point" usually only lasting for a second or too
...but, this thing seems to draw ~70A pretty consistently :smiley_omg:

Also, why is the "voltage drop" so...
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