Been awhile since I’ve dabbled in polymers but PA6 has a relatively low friction coefficient and a decently high melt point, yes?
Hubless Wheel Feasibility Project
- Thread starter BartRidesEternal
- Start date
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Thanks cap! I'll build a "working" prototype then!
I also had to look up the properties of Nylon again to be honest. In our workshop, at my employer we also utilize Nylon wheels.
They are tough, wear-resistant, sound dampening. But having seen the incredible wear resistance of these wheels being used on rough, street/tile like surfaces, this was my first choice.
I was focussing on this term 'hubless wheel' which I would like to call an 'open wheel'.
But I just realized the principle I'm working with is more like a monowheel:
Check the rail (wheel) and rollers.
But I just realized the principle I'm working with is more like a monowheel:
Check the rail (wheel) and rollers.
Found this via pinterest:
Except being just beautiful and/or interesting, someone found a use for it
Now I have to put this on my 'to build' list too.
Except being just beautiful and/or interesting, someone found a use for it
Now I have to put this on my 'to build' list too.
So at this point I wanted to show you guys the direction I'm heading with this wheel prototype:
Years ago, I read a 'recumbent' topic here on Ratrodbikes. There I saw the #flowroller from 'Rohorne'.
I never lost sight of that front wheel driven and steered custom cycle. Its so obvious, genius and cool at the same time.
Seeing that rear wheel, hanging and doing nothing (taildragger?), I thought, this is a perfect opportunity for some Bartrideseternal sauce.
Alright, below some pictures of the flowroller and then some of my ideas on CADboard scale 1:1.
I plucked these pictures from the internet.
My first sketch.
Details are flawed, but its pretty cool!
[EDIT] I don't know if I will build again with a shaft drive. Dimensions and alignment with my current tools is an absolute nightmare. The shaft drive klunker from the ORBO build this year will turn out great, but I'll leave the shafts for a little while.
Years ago, I read a 'recumbent' topic here on Ratrodbikes. There I saw the #flowroller from 'Rohorne'.
I never lost sight of that front wheel driven and steered custom cycle. Its so obvious, genius and cool at the same time.
Seeing that rear wheel, hanging and doing nothing (taildragger?), I thought, this is a perfect opportunity for some Bartrideseternal sauce.
Alright, below some pictures of the flowroller and then some of my ideas on CADboard scale 1:1.
I plucked these pictures from the internet.
My first sketch.
Details are flawed, but its pretty cool!
[EDIT] I don't know if I will build again with a shaft drive. Dimensions and alignment with my current tools is an absolute nightmare. The shaft drive klunker from the ORBO build this year will turn out great, but I'll leave the shafts for a little while.
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How does the chain line work? Looks to me when you turn the chain will bind and get thrown.
Oh I gotta follow this one...
If I understand correctly; your question is about the sketch on cardboard?
The cardboard sketch has a shaft drive sketched. And the downtube is too low to effectively make turns.
On the pictures the complete bottom bracket and chain turns in corners. The extreme headtube angle is (I'm thinking) to mitigate the forces on the bars by pedalling.
Check out this youtube video:
Imagine that with an hubless/open wheel
That wheel flop due to the crazy headtube angle... maybe I can think of something when the build arrises.
Thanks, I won't start building the bike till the main buildoff. This is a little feasibility check if the 'open wheel' is manageable for a buildoff bike. + I'm not sure if I'll build this bike for the buildoff either.
I am going to build such a bike someday!
