Sequoia Electrathon Racer

[Master Hack]

Nice work! I love the way ya bump bendin that tube! What kinda tubin is that? Maybe I missed it, its early.
That looks like the same brake setup I bought a coupla years ago, but you got it for about half of what I paid.
It works purdy well, but I had to get longer hoses, then bleeding the system was a *****.

 

[thatkartbuilder]

Nice work! I love the way ya bump bendin that tube! What kinda tubin is that? Maybe I missed it, its early.
That looks like the same brake setup I bought a coupla years ago, but you got it for about half of what I paid.
It works purdy well, but I had to get longer hoses, then bleeding the system was a *****.

looks to be black pipe?

 

[Functional Artist]

Hey T,
Most of my creations are made outta regular old water pipe (1/2" Schedule 40)
...it's actually 7/8"OD x 5/8"ID with a ~1/8" wall thickness
...& has been my "go to" material for years
...but, I got some 1" 16g HREW (Hot Rolled Electric Welded) steel tube (maybe for the next one)

I'ma gonna try to set up the wheel base & track so that the brake system can be used as-is (hopefully)

How did you go about connecting the brake pedal to the master cylinder?
...& can you maybe post some pics, of the set up you used?

 

[Master Hack]

Galvanized pipe?
l stole this from a secret source. Only thing i can legally say is its a deceleration activator pedal from a classified intergalatic vessel project. The original design was for a mercury based electromagnetic velocity regucer.
it is easily adapted to a standard hydraulic brake system, however!

 

[Master Hack]

Funny, was just going suggest some .065 wall tubing would make a nice solid, lightweight chassis.

 

[Functional Artist]

Galvanized pipe?
l stole this from a secret source. Only thing i can legally say is its a deceleration activator pedal from a classified intergalatic vessel project. The original design was for a mercury based electromagnetic velocity regucer.
it is easily adapted to a standard hydraulic brake system, however!

Hey T,
No Galvanize pipe, just plain 'ol steel
Um...OK...LOL
Thanks!

I've been workin' on some prototype dual flange hubs

If your familiar with these bearings
...maybe ya can tell us what these numbers mean?

 

[Master Hack]

Where did that odd ball come from?
the first few letters/numbers tell ya the size, type, construction and clearance. The last few are the lube and seal type. When all the letters and numbers are put together it spells dump that POS and get something normal.

NTN Bearing SC0228LLU Single Row Radial Ball Bearing, Contact, Normal Clearance, Steel Cage, 15.875 mm Bore, 34.925 mm OD, 11.112 mm Width, Double Sealed.​

Ugly size!

 

[Master Hack]

6202-10 would be a better choice.

5/8 bore 6202-2RS-10 Ball Bearing 5/8x35x11mm Sealed 6202-2RS-5/8​

 

[Master Hack]

Is changingbearing size going to create problems? Both are 5/8 bore.
the OD is about .0025 bigger.
6202-10 is very common size. probably in stock at every 7 -11

 

[Functional Artist]

Hey T,

Yup, they seemed kinda odd

IIRC them bearings came out of an old tread mill
...then, going even further down "memory lane" I think those the tube & bearings (from the tread mill) can be seen on this kart

* My first attempt at building an electric cart (~20 - 25 years ago)

It was powered by a 12V car starter battery

...& motivated by a V8 Chevy engine starter motor & flywheel
...with belt drive & a manual clutch

Is changingbearing size going to create problems? Both are 5/8 bore.
the OD is about .0025 bigger.
6202-10 is very common size. probably in stock at every 7 -11

Nope, shouldn't
I was wantin' to set up hubs that work with standard go kart, front wheel bearings like,
https://www.bmikarts.com/High-Speed-Wheel-Bearing-58-x-1-38_p_1609.html

 

[Functional Artist]

Hey T,
Here are some pics, of the specs, of the material that I intend to use for hubs

Internal Diameter
Inches

Metric ID

Wall thickness
Metric

Inches

 

[Master Hack]

Is that the same material as in the pic with the bearing installed?

What is the diameter of the axle?

 

[Functional Artist]

Is that the same material as in the pic with the bearing installed?

What is the diameter of the axle?

Hey T,
Yes, it's the same piece even, I just popped the bearing out to get measurements.

This stuff:
16 Gauge Carbon Steel Round Tube 1-1/2" OD .065" wall 45" Long 1.5" 1.37 ID
https://www.ebay.com/itm/225727225365

The plan is to use standard 5/8" go kart spindles, for the front "axles", like these

https://www.bmikarts.com/Complete-Spindle-Set--6-x-58_p_2946.html

...& a 5/8" x ~6" grade 8 bolt, for the rear axle

 

[Master Hack]

There seems to be a discrepancy between the measurement called out (1.37) and what you measured (1.392).
Assuming the odd ball bearing fit (34.925MM) the measurement must be closer to 35 MM (1.378).
What I'm getting at is, The common kart front wheel bearing (99502H) is .625 X 1.375 (5/8 x 1 3/8).
Another alternative is a 6202 -10 (5/8 x 35MM)
One might fit better (OD) than the other....
Yeah its only .003 but loose is no bueno.

 

[BaconBitRacing]

Hey T,

Yup, they seemed kinda odd

IIRC them bearings came out of an old tread mill
...then, going even further down "memory lane" I think those the tube & bearings (from the tread mill) can be seen on this kart

* My first attempt at building an electric cart (~20 - 25 years ago)
View attachment 144064
It was powered by a 12V car starter battery
View attachment 144066
...& motivated by a V8 Chevy engine starter motor & flywheel
...with belt drive & a manual clutch
View attachment 144065

Nope, shouldn't
I was wantin' to set up hubs that work with standard go kart, front wheel bearings like,
https://www.bmikarts.com/High-Speed-Wheel-Bearing-58-x-1-38_p_1609.html

Love the "vintage" photos.

 

[Functional Artist]

There seems to be a discrepancy between the measurement called out (1.37) and what you measured (1.392).
Assuming the odd ball bearing fit (34.925MM) the measurement must be closer to 35 MM (1.378).
What I'm getting at is, The common kart front wheel bearing (99502H) is .625 X 1.375 (5/8 x 1 3/8).
Another alternative is a 6202 -10 (5/8 x 35MM)
One might fit better (OD) than the other....
Yeah its only .003 but loose is no bueno.

Hey T,
I took one of the front wheels off of my Aerial Atom kart, to see what bearings were in its wheels

It has the 99502H bearings (with a snap ring)

I used (1) of the bearings (while I had it available) for test fittin' in the hub tube material
...& they seem ta fit pretty snuggly

* I can start & insert the bearing "by hand"
...but, it takes some effort
...& then, the bearing has to be tapped out, from the inside, to remove

FYI: Here is a video of my Aerial Atom kart

 

[Master Hack]

Wow! That one has snap ring! Can yer S**t get any weirder?
use the 99502's cuz they fit. The snap ring might be a problem, cuz thats not very common, as in l've never seen a 99502HC. I'm sure they exist, but so do unicorns, l'm told.

 

[Functional Artist]

We call it Native American Summer now. Indian is a racist term.

Hey Denny,
I guess I'm not WOKE enough

I learned in school that Indian is a descriptive term for the people who live in the country of India
...& Native Americans were referred to as Indians by Columbus
...because he was heading for
...& thought he landed, in the country of India hence, "Hello Indians" or "How"

But, come to find out the North American continent was in his way
...so, the folks there were then, referred to as American Indians

AFAIU referring to folks with terms like Savage & Redskin would be considered derogatory or racist

 

[BaconBitRacing]

Hey Denny,
I guess I'm not WOKE enough

I learned in school that Indian is a descriptive term for the people who live in the country of India
...& Native Americans were referred to as Indians by Columbus
...because he was heading for
...& thought he landed, in the country of India hence, "Hello Indians" or "How"

But, come to find out the North American continent was in his way
...so, the folks there were then, referred to as American Indians

AFAIU referring to folks with terms like Savage & Redskin would be considered derogatory or racist

Hey, FA, we’re glad yer not Woke!

 

[Denny]

Heck, I’m still sleeping. I was only kidding.