Any mechanical engineers in the haus? Help requested!

[bogan]

Nothing a big soft shock couldn't fix http://www.youtube.com/watch?v=wzLCgooA9KQ


Probably not more than one of those 50g wheels on those fancy carbon road bikes. Yeah rake is directly affected by shock length/that bracket on-top of the wheel, is a bit exaggerated at the mo.

lol, pretty sure he was sposed to land bout a meter furthur forward!

you mean 50gram or $50grand wheels? possibly adding another link to mimic the bmw front link suspension (forget the name) would eradicate any front end 'folding'

[Ocean1]

Eeeeeef anyone is interested here is how it turned out. Slightly unfinished.

Nice work.

Working with solid primitives is a bit like machining everything from solid stock, can make for slightly crude and overweight structures unless you spend a lot of time refining stuff.

SW does tend to encourage that...

Check this out: http://www.rhino3d.com/

[schrodingers cat]

Nothing a big soft shock couldn't fix http://www.youtube.com/watch?v=wzLCgooA9KQ

Why? Does the force magically disappear?

[bogan]

Why? Does the force magically disappear?

read the thread from the start dude, essentially he's getting rid of spokes by using a huge hub with equally huge bearings.

[schrodingers cat]

read the thread from the start dude, essentially he's getting rid of spokes by using a huge hub with equally huge bearings.

Assumptions are mother of all fuck ups.

I have read from the beginning. The trouble it getting sufficient strenght into the rim - excuse me - large skinny hub. You could add a ton of material to ensure it is strong enough but that rather defeats the fundemental performance principals.

Its good to explore ideas but the wheel isn't a new design. Asthetics at the expense of performance isn't engineering, its architecture.

Don't let me rain on your parade. Carry on. As I said, I'd pay good money to watch you jump it off something

[bogan]

Assumptions are mother of all fuck ups.

I have read from the beginning. The trouble it getting sufficient strenght into the rim - excuse me - large skinny hub. You could add a ton of material to ensure it is strong enough but that rather defeats the fundemental performance principals.

Its good to explore ideas but the wheel isn't a new design. Asthetics at the expense of performance isn't engineering, its architecture.

Don't let me rain on your parade. Carry on. As I said, I'd pay good money to watch you jump it off something

strong enough for what? everyday use, easy, cycle equivalent of MX, not so much. And having a shock in there will soak up a lot of the impulse forces associatied with bumps etc, so i spose in that sense the shock does make some of the force dissapear.

[Dare]

Working with solid primitives is a bit like machining everything from solid stock, can make for slightly crude and overweight structures unless you spend a lot of time refining stuff.

I have used Rhino (albeit years ago) And it wasn't too bad, at the time it had some issues regarding what it thought constituted an 'intersect' which made complex 3d shapes fun.
That said solidworks has pretty robust lofting features should you choose to make use of them.

I was going for a more beefy oldschool jeepesque look although I wouldn't want to be the one pedaling this hunk of junk around...

Don't let me rain on your parade.

Nothing to rain on, it's finished with. I was doing it as an aesthetic exercise not a technical one, since I already know there are many reasons hub-less bikes aren't available from your local bike shop...

[Real_Wolf]

Its good to explore ideas but the wheel isn't a new design. Asthetics at the expense of performance isn't engineering, its architecture.

Hit it on the money. He was merely curious about what the engineers thought of it, but he was designing it because he "thought it looked cool"

[Dare]

Hit it on the money. He was merely curious about what the engineers thought of it, but he was designing it because he "thought it looked cool"

I'd be worried if you didn't know that about me by now :P

[avgas]

Mua ha ha.

Thats pretty badass - what software you using.

In terms of bearings I would use an old school consistent roller arrangement, otherwise you might get some crazy warp out of the bearing due to the pedal and roll torque. Roller bearings are simple and have nowhere to go. But need lotsa greasin

[jono035]

Hit it on the money. He was merely curious about what the engineers thought of it, but he was designing it because he "thought it looked cool"

Very true, at least he knew what the correct firing order for an inline-4 engine was, though!

[Real_Wolf]

I'd be worried if you didn't know that about me by now :P

I do, was explaining it to other people who might not be used to your "i want to find otu everything, then ignore it and do it my way cause it looks cooler"

Very true, at least he knew what the correct firing order for an inline-4 engine was, though!

Lol, he was so adamant about it aswell

[Ixion]

There's at least three different firing orders used by in line four cylinder engines. DAMHIK

[Dare]

I do, was explaining it to other people who might not be used to your "i want to find out everything, then ignore it and do it my way cause it looks cooler"

Damn straight sonny jim.

Thats pretty badass - what software you using.

Thanks, solidworks and I'll bear that in minds, pretty sure the bearing i was thinking of wouldn't stand up to anything much without some amazing materials.

Very true, at least he knew what the correct firing order for an inline-4 engine was, though!

I thought that was Indy? Feet and arms!

There's at least three different firing orders used by in line four cylinder engines. DAMHIK

Which one is bestest?

[Ixion]

Damn straight sonny jim.


Thanks, solidworks and I'll bear that in minds, pretty sure the bearing i was thinking of wouldn't stand up to anything much without some amazing materials.


I thought that was Indy? Feet and arms!


Which one is bestest?

The one that fires all four together! (Actually, taht's a fourth firing order. And firing a two big twinbs would be a fifth) .