Diamonite Electrathon America Racer

[Functional Artist]

Wholy crap!

Are the bearings seated correctly?

Do both black rims behave the same?
&
The "play" in the freewheel unit doesn't seem to be that bad...from here

 

[Master Hack]

Are the bearings seated correctly?

First thing I thought. I'll investigate further later.

The "play" in the freewheel unit doesn't seem to be that bad...from here

It isn't as bad, might be ok.
I'll effe around with this stuff more tomorrow.

 

[Functional Artist]

Hey T,
Looks like ya "warped" it pretty goodly

I went & checked on the black rim, that I have
...& somehow, ya must have "warped" this one too
...because it's "all over the place"...as well

JK...JK
Maybe...seems like...(2) piece plastic rims aren't such a good idea...in this...specific situation

 

[Master Hack]

Hey T,
Looks like ya "warped" it pretty goodly

I went & checked on the black rim, that I have
...& somehow, ya must have "warped" this one too
...because it's "all over the place"...as well

JK...JK
Maybe...seems like...(2) piece plastic rims aren't such a good idea...in this...specific situation

Lemme see if there is something misplaced,displaced, or replaced. I just grabbed 2 halves maybe one is screwed up? Maybe a different combination will be mo bedder?
they should be all identical, tho.

The "other" hub:
Is there anything else sharing space on that hub?
lf not, l can remove the studs, turn thr OD down.(flange) then drill and tap it to fit the rotor.

then everybody can live happily everafter!

 

[Denny]

They shake more than a junkie looking for a fix. Maybe try rotating the halves?

 

[Master Hack]

Maybe try rotating the halves

There is only one opening for the valve stem.

 

[Denny]

Carp!

 

[Master Hack]

With some gental persuasion, the wheels can be brought into tolerance, or at least acceptable.
https://youtube.com/shorts/XuCv5PthAPk?feature=share

https://youtube.com/shorts/DL1S7Sfxask?feature=share

persuader:



You have to screw around with different combinations and adjustments to get runout within reason.
The rotors are so thin just torkin the screws will adjust them.
Runout is in both the axial and radial direction.

 

[Functional Artist]

With some gental persuasion, the wheels can be brought into tolerance, or at least acceptable.
https://youtube.com/shorts/XuCv5PthAPk?feature=share

https://youtube.com/shorts/DL1S7Sfxask?feature=share

persuader:

View attachment 153674

You have to screw around with different combinations and adjustments to get runout within reason.
The rotors are so thin just torkin the screws will adjust them.
Runout is in both the axial and radial direction.

Hey T,

Yup, that looks a bit better

The "other" hub:
Is there anything else sharing space on that hub?
lf not, l can remove the studs, turn thr OD down.(flange) then drill and tap it to fit the rotor.

then everybody can live happily everafter!

Nope, just a rotor
...& sure, modifying the hub to "work with" the rotor
...sounds like an adequate solution to me

 

[Master Hack]

I have a couple of ideas, please view exhibit "A"

exhibit "A" shows the hub sitting on top of the rotor.
Plan 1A is to cut the hub along the plack lines, indicated by the red arrows.
then chuck it up inthe lathe to make it round.
that leaves little room for bolts.
So my suggertion is unconventional, maybe even stupid and l'm gonna hear alot of *****in and WTF's. It will work, it is easy and quick.
Weld it!
yeah, yeaah, l know. Seriously, do you ever expect to wear out, or damage a rotor?
l've done this wheh there are no other good options, without adverse consequences.
plan 1B
Turn it down, then drill and tap it for #10 screws.
lotta work.

 

[Functional Artist]

Hey T,

I think welding it would be adequate
...& I like "It will work, it is easy and quick"
...as, less work...is more better
&
Lemme know if anyone gives you a "hard time"
&
For reference, here is an example of a "factory made" rotor with a welded-on hub
https://www.bmikarts.com/Brake-Rotor-with-Hub-1-Bore-_p_612.html

 

[Master Hack]

Finished the odd hub.
I turned a step to locate center, as the rotot ID was mo bigger then the hud. Radial runout is nil, but there is some axial runout but nuttin serious.
The welds look like carp due to paint and other stuff off gassing. They are solid welds however.
They have the usual guarantee, 100,000 miles or 10 minutes, whichever comed first.

 

[Master Hack]

There is no threaded hole for a set screw. You want it that way? As a brake hub it might be a good thing if the key stays put.

 

[Functional Artist]

Hey T,

I agree it should have a set screw
I would be so kool "if" (1) just...mysteriously appeared

 

[Master Hack]

I'll let Egor know. Do you prefer fine or coarse threads?

 

[ezcome-ezgo]

Only the finest threads, Gentlemen.

 

[Functional Artist]

I'll let Egor know. Do you prefer fine or coarse threads?

Yup, I agree with Ez
...only the finest threads...will do

 

[Master Hack]

Ok, the finished product.

only .004? I'll accept dat.

 

[Functional Artist]

Mail man brought me some kool stuff

...& I must say...that's a nice weld

...& these things are "so" light

Thanks T
...you're the BEST

Guess, I'ma gonna haveta go-n-get motivated...now

 

[Master Hack]

I had fun making that stuff. I left the finish work up to you, since l had em forever. Get a file and make em purdy.
A thick piece of glass and a sheet of sandpaper makes a nice surface plate for flat parts.