I’m new to this newsgroup and was wondering if anyone could help me with
my project. I need to create a unicycle on AutoCAD I-DEAS for my
Engineering 4 class. But I don’t have the measurements to any unicyle, and
would like to ask if anyone could post the measurements for every unicycle
part. Including the screws inner and outer radius, blah, blah…I know
it’ll be a pain, but I need precise details to create this project. I
gladly appreciate your time and kindness.
Does the AutoCAD drawing need to be an exact drawing of an existing unicycle? There are lots of different unicycles and each will have different dimensions.
One of the very nice things about most CAD packages is that you can change any dimension later on. I’d recommend just making the unicycle parts with approximate dimensions and then change them later on if needed. Just as long as each component has dimensions that are the same or fit together when they need to be assembled, you should be fine.
Of course the best thing is to have the actual pieces right in front of you so you can see exactly how the pieces look.
Oh yeah, have fun building the wheel… the spokes are a real pain to align and mate with the other components since they are made to stretch and bend a little in the real world.
Can I make a suggestion: Would you consider just putting a hub into
Autocad? This could be a good contribution to unicycling if you put
something together that could be manufactured at some time. Making a frame
without Autocad is pretty easy but having a hub designed within Autocad
would be quite useful, I think. Then you could write the CNC program!
For info on hub dimensions maybe contact John Drummond at unicycling.com.
— firstname.lastname@example.org wrote:
> I’m new to this newsgroup and was wondering if anyone could help me with
> my project. I need to create a unicycle on AutoCAD I-DEAS for my
> Engineering 4 class. But I don’t have the measurements to any unicyle,
> and would like to ask if anyone could post the measurements for every
> unicycle part. Including the screws inner and outer radius, blah,
> blah…I know it’ll be a pain, but I need precise details to create this
> project. I gladly appreciate your time and kindness.
> Sincerely, Anna
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Cool… I still have the postscript files from the wheel I made in Pro/E, it includes the suzue hub, rhyno lite rim (or maybe it was an araya), spoke, nipple, and Idol cranks. Dimensions are probably not exact, but are pretty close.
I made the postscript files into PDFs so you can see them at:
All the parts have dimensions, but you may have difficulty figuring out which dimensions is what from this particular view.