Yoyo CAD & Prototyping Adventures

I’m going to be a bit harsh here, It’s cool for your first design but I think you can do a lot better with it.

The shape is well designed and nicely made but it’s a simple design that’s been pretty overdone, nothing really makes it stand out, you could definitely add some flair to it.

Weight distribution could use some work with it being evenly and randomly distributed throughout the body.

Not a fan of the multiple cuts inner cup design on a round body but I might be wrong on that, would be cool to see some renders of the completed design.

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Hey! Thanks for the feedback I appreciate it. Im not really sure how the cuts in the cup happened or whether they’re good or bad. I think the shape is overall simple, I was shooting for a more punchline type shape but ended up with this and was actually pretty happy even though it wasnt what I was originally shooting for. Will definitely look for something to give it some pizazz but for the most part its where id like it with the 54x46.5 specs.

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The reason you are getting that cut look in the cups is because you are using too low of a radius for your fillets. They are in no way bad, it’s mostly just aesthetics, unparalleled is known for doing them on their shapes for aesthetic reasons. I just think they don’t fit with the overall smooth organic shape of the yoyo.

Also try using the Offset tool when you are making the inner cups, makes it easy to have a consistent thickness throughout the body. My way of designing the cups is making an offset of the whole shape at my desired minimum thickness and then adding the rim or midweight afterwards.
ofset

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Here’s what I mean in a more simple way with pictures.

  1. Start with a shape.

  2. Create an offset of the shape, here I’m using 7075 and I want to go a little thicker for durability so I’m doing 1.25mm, this allows you to have an even thickness throughout the body.

  3. Add some rim weight! Usually I wouldn’t go for something so simple as two lines but for the sake of teaching it’ll do.

  4. Fillet your corners and trim the excess lines and voila!

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Haven’t been on any yoyo forum for almost a decade I think, just wanted to see if anyone is still just making yoyo’s for the fun of it. Pleasantly surprised tbh.

I found a box with some stuff I made 13-14 years ago and figured I might as well post a pic.
I can’t help with cad and stuff like that, but I know a thing or two about machining.

Stay safe, J

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Here is probably what im going to keep this yoyo as. Cleaned up the cup, added a bit of rim weight, increased the gap a bit more. Too lazy to include the bearing, axle, and response in the render, but here she is!

Have another design in the works for a buddy of mine, just for fun as of now and to work on my skills. Will share when that is near completion.

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I finished this design yesterday, made it for a buddy of mine. Its definitely big but the shape gives it a sense of familiarity. I did my best with the fingerspin hub, he wanted something that would center but not fully lock in, and this is what I came up with. its something ive never done before and its made me hate them but im glad I made one. It will definitely be tough to lock in a fingerspin but has a cup so it would probably be decent. I put a groove right before the rim to emphasize it a bit more, as well as a groove in the cup. I know he wanted more grooves but i had the bulk of the design finished before trying them and realized it would mess with a lot of numbers. As for the yoyo itself, its big. 58mm diameter x 50mm width. 7075 8mm axle 4.5 gap 65ish grams. My friend likes flashy tricks so I figured the bigger size would help with that, as well as give it a lot of power without feeling stale. I had a lot of fun designing it and think it has potential although somebody with more experience could probably tweak it to be better. For now I’m calling it the chunk. Lmk what you think!


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That looks good but you could crop the pictures down to remove the white area

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Idk how I missed that! I cut them on my phone and updated the post so hopefully thats better. Thanks for the support as always!

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Thanks! Much easier to see now.

That looks like the wall is pretty high on that, though hard to see with all the reflections

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I am interested in knowing how to machine a yoyo. Where did you make those yoyos?

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That is correct, I’ll fix that up. I was messing around trying to create a decent step for grinds and I probably messed with the wall too much.

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so im having a bunch of trouble trying to figure out how to make a bearing seat, ive watched the videos by zach about the guts but im still confused, im trying to make a yoyo with a c size bearing
@MarkD @Palli

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What I had to do is trial and error with like 12 prototype seats before I got it right.

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how did you get it right

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I 3d printed each one and saw if it fit. (I did use side effects though)

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Mark shared a CAD file for it if you scroll up enuf

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I saw it but its a d bearing I want a c bearing

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No those are the Diffraction guts

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OHH ok ill go back and download that file, thx