Gallery, Projects and General > Gallery

Modding yo-yos

<< < (8/9) > >>

Brass_Machine:

--- Quote from: Mark132 on April 27, 2011, 01:38:06 AM ---A new project i've been finishing.
****WARNING LOTS OF PICS****

...

--- End quote ---

Bah! We love pics!

Very nice work!  :bow:  Would love the same answers as Bogs and Bernd

 Sent a PM btw..

Topos:

--- Quote from: Mark132 on February 12, 2011, 03:39:38 PM ---Thanks for all the kind words.
Just a bit more background and "research" on me.

i graduated from college in December with a B.S. in Mathematics. My senior research paper was about yo-yo tricks.
I have lots of information about modern tricks in it and a couple formulas that describe them.
http://www.yoyonashville.com/Seniorproject.pdf


--- End quote ---

Congratulations on your enjoyable thesis using Category/ Functors and Freyd's Allegories. I was laughed
at in 1959 when I predicted that Homotopy Theory, Category, and Topos would actually have practical
applications. ( e.g., Algebraic Theory of Machines, Foundation of Computer Science, Cognition, etc. ).

Thanks to you I can now say that they were  indeed the YO-YOs!   :)

Much success to you and best wishes.

riceburner:
Does anybody have a drawing of the hub stack with bearings? I really would like to build a couple of yo-yo's for Christmas presents.

Thanks

s.r.

Mark132:

This is the basic quarter profile of a modern yo-yo. Most yo-yos are some variation of this profile. This one does not have the independent spinning side stacks.
the side "hubstacks" usually look like this.

the bearing is held by an o-ring in a groove. the ones pictured are add on parts for plastic yo-yos that use a hex bolt for an axle. Most aluminum yo-yos have the posts machined during production as a permanent fixture.
here is a tutorial on hubstack assembly.

The functionality of having hubstacks.


Hubstacks are not  absolutely necessary to make a yo-yo. they are a neat new feature that lets you grab your yo-yo while it spins. online yo-yo stores sell hubstack parts: the orings, bearing and plastic gripper.
here:http://shop.yoyoexpert.com/category/10/Hub-Stacks

I'll see if I can get an actual cad drawing of the hubs. Hope this helps.

just found this vid. My lathe in action being used by team japan in the iron mod contest at the world yo-yo contest

AdeV:
 :bugeye: :jaw:    :clap: :clap: :clap:

This is amazing stuff, thanks for sharing! Who knew there was so much technology & clever design in yo-yos!

If you wanted to make a yo-yo like the last one I used, you'd have to mount the two halves the other way around, and use a solid steel axle!

Kind of like this one:

Navigation

[0] Message Index

[#] Next page

[*] Previous page