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Knock Offs and Friction Shocks

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Denny Graham Gold Member Dennis Graham
Sandwich, IL, USA   USA
1950 Chevrolet 3600 "Old Blue"
1954 Chevrolet 3600
Brian, I took your photo of the blue Miller front wheel and loaded it into
Big Print. Scaled the front tire, i.e. rim to 17" then measured the ears of the
nut at about 5.8" and the center circle at 3.25".

dg

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Woodysrods Silver Member Brian Woods
Westbank B.C., Canada   CAN
So my guess was a bit off at 4" total.
I dre them up and was going to cut out a cardboard one to take to the shop in the morning to hold up against the wheel.
I didn't think I missed it by that much.
Does anyone know how big Mike Thorpe's cast aluminium ones are??
Brian



Edited 1 time(s). Last edit at 2017-03-23 10:37 AM by Woodysrods.

Denny Graham Gold Member Dennis Graham
Sandwich, IL, USA   USA
1950 Chevrolet 3600 "Old Blue"
1954 Chevrolet 3600
The full size car in Big Print was calibrated using the 20" wheel at the point
where the bead would have sat. The full size measurements were around
6.88" for the ears and 3.8" for the nut diameter.
Re-calibrating the picture using that same point on the wheel but telling
the progam the wheels are 17" gives you about an 85% reduction.
Since the 17" wheels are out of scale for almost all the Cyclekarts a
smaller knock off would probably look better next to the car itself.
Most of the karts are built to only 60% to 75% of the original cars.
If you figured what scale you think you're building too then all you have
to do is reduce the full scale figures I posted above to come to the
correct size nut.
Your choice is whether you want the nuts to look correct for the car
or for the wheel.

dg

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carChips Avatar
carChips Victor Harnish
Kelowna, BC, Canada   CAN
1933 MG Magnette
1973 Triumph Spitfire 1500 "Chip"
1989 GMC Sierra 1500 "Bush Truck"
Brian, here check out the ones om the Merc, I think you're in the ball park with your measurements. http://www.cyclekartclub.com/registry/1203



S'all for now!

Woodysrods Silver Member Brian Woods
Westbank B.C., Canada   CAN
Thanks Vic
Got an email from Mike this morning!
Brian

Woodysrods Silver Member Brian Woods
Westbank B.C., Canada   CAN
Revisiting this Thread.
So, we have all agreed that spinners, knock offs, whatever you wan to call them look great on CycleKarts and help to add to the authenticity of the car we are using as our "Inspiration Car".
Thus, to keep this important subject current, I am posting on it again.
Here are the knock off Mike Thorpe has made.
they measure 2 1/4" across the circle.
Brian


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Woodysrods Silver Member Brian Woods
Westbank B.C., Canada   CAN
Here is how the compare to some cast aluminium pieces I have over 100 of.
Mine measure 2 1/2" to rough outside and 3" tip to tip in the protrusions.
Brian

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Woodysrods Silver Member Brian Woods
Westbank B.C., Canada   CAN
Here is my napkin sketch for a Miller Knock Off at CycleKart scale???.
Consists of 3 machined pieces.
Brian
Oops sorry! I was in a hurry and took the picture upside down??confused smiley



Edited 1 time(s). Last edit at 2018-01-21 01:57 PM by Woodysrods.


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moto-klasika Avatar
moto-klasika Zoran R. Pualic
Bern, Bern, Switzerland   CHE
Brian the Woody!
Better now?
Zoran



Zoran R. Pualić
(mostly living in Bern, Swiss & happy in my Belgrade, Serbia)

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Woodysrods Silver Member Brian Woods
Westbank B.C., Canada   CAN
Thanks Zoran

1908Rick Avatar
1908Rick Rick Eggers
Cape Coral, FL, USA   USA
The dimensions I came up with for mine is 2.5 inch OD center with an overall length (tip to tip) of 4.5 inches.
I think that will look about right on the car. I ordered a piece of aluminum to make one.
If that works out OK, I'll do the other three.

Rick

Woodysrods Silver Member Brian Woods
Westbank B.C., Canada   CAN
Hi Rick
So what do you think about machining them from 3 pieces?
Brian

1908Rick Avatar
1908Rick Rick Eggers
Cape Coral, FL, USA   USA
I don't know. Do you mean machining the center, and the wings separately? How would you attach the wings? Can you weld aluminum? I can't. Welding steel is still a challenge for me.

I really don't think it'll be that big of a deal to mill them from a solid piece. I find that when I have to make multiple pieces of something, the first one is a learning experience, and the rest are easy.

Rick

Woodysrods Silver Member Brian Woods
Westbank B.C., Canada   CAN
Did you look at my quick sketch tis morning?
The centre could be turned fro a piece of 2 1/2" sound stock.
Then mill a slot the width of the wing piece 1/2 of the wings depth.
Next you make the wing as a cross piece and mill the bottom side middle section 1/2 of its depth to coincide with
the outside diameter of the centre piece, and the top milled 1/8" deep to match the hole for the centre cap. to fit in.
As these are not functional, the two cap mounting screws will go thru to two tapped holes in the wheels to hold
everything in place and onto the wheel.
If I were to use the "free" cast pieces I already have (not the ones from Mike) I wold have to weld on extensions as the
nubs only measure 3".....I do think 4 1/2 is too big??? 4" looks right for the size of the CK (Mike's measure 3 7/8"winking smiley
Yes, I can Aluminum weld and have a TIG, but the clean up and polishing on the rough pieces I have would require more
work, than the fabrication of the 3 piece model ( it would end up at 3 pieces anyway, counting the cap and a entering plate
for the inboard side??)
All good discussion though.......but I am not as good of Machinist as you are.
Brian


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1908Rick Avatar
1908Rick Rick Eggers
Cape Coral, FL, USA   USA
OK. I see what you're saying. I didn't see the pic so I went back and found it.
That would work, but I think it'll be more work than doing a one piece machining job.

I just have to figure out how to mill the round od of the center. There are ways. Youtube to the rescue.

Rick

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