the wonginator

oh dammm....

how did you draw all those individual nuts and bolts? and how did you get the lines to line up so perfectly and symmetrically? (i'm a 100% CAD NEWB)

harov3

Ok, whats this your 3rd design?, 4th?. Your going to have to bite the bullet and build one. You've being putting in some big hours on these, it cant just be a passing fancy. I use autocad if I absolutely have to, and I've got some idea how much work you've done. If you want someone from a frame shop to pay attention your going to have to put it in metal. When your prototyping you dont have to have perfect finish or even the final material types. You can build a geometry tester out of steel of any section provided the geometry is the same, this can make testing relatively cheap. Prove the principle then build the pretty frame in the final material to continue testing. You've come a long way, its time to go all the way.

chris_pnoy

Those look awesome. I like the details.

"If you build it, they will come"

harov3 is right. those look like they're ready to be pitched to a company.

bobflyer

nice design.. its quite rare that i come across people who want to build up their own bike starting from some metal tubes.. hope the project works well!

Maelstrom 

WHOA!!! The bb is on the linkage plate? In some weird way it reminds me of the faith. Its an interesting design but scares me to death. The faith doesn't look burly enough to handle much of anything.

Good luck though, I love seeing fresh designs. I love the shock plate, that thing looks tough

I notice you are trying to not interupt the seatube. Is this for seat extension or have you found the shock placement a little forward to be better? And trying to envision wheel movement at impact. It is going to move back and up? Not up and in correct?

Pretty nice design. The fact the entire bike is sitting on two linkage plates is my only concern but thats becuase of my size and how I ride

the wonginator

you just gotta have some faith, ya kno?

dxc

i am using VariCAD to draw 3D CAD, they have templates for parts like screw, bolts, skf bearings and others

dxc

i have this weird idea to make the prototype from woods for geometry tester**********

revision for the linkage at the axle parts

harov3

Uhh...as long as you ride it! (Really bad idea, you will get splinters where there should never be splinters)

dxc

This work is licensed under a Creative Commons Attribution 2.5 License.

Maelstrom 

I have seen scaled versions made of wood. Heck even cardboard. Really gives a good feel for how the travel moves.

bruiser2

I think k'nex could give you a really good idea of how a design would work. And if it sucks junk it and start over. Just find some small springs to use as suspension.

the wonginator

www.bikechecker.com

dxc

I Post the ltx file here in the zip archive file for the program linkage.
For better leverage ratio for the evolution-x now with 230mm rear wheel
travel using 86mm strokes shocks

dxc

some details at the front triangle for 230 mm axle path evolution-x

the wonginator

dude pictures are nice and all but will you ever actually make it?

dxc

I'm sory man the prototype never come out untill now

pinkrobe

The fact that the BB travels in an arc means that you will have the potential for a massive suspension-induced load on the chain. Fix the BB!

Lamplight

Great drawings! I used to be a drafter so I really enjoyed looking at them. You could probably make a rideable prototype out of wood, but of course it would be heavy and not have enough strength to really test it. And don't bother using pine boards from Home Depot, try to find some ash or hickory.

(I've actually considered making a road bike frame out of wood. )

dxc

how about my idea of using gearbox.

dxc

my theory is, when put weight at the bb and hit a bump, the upper linkage will rotate clockwise with the center point at the front triangle, and the lower linkage will rotate clockwise with the center point at the rear triangle because of the weight we put at the bb work as counter force from the bumb. and comparing with theory the system will lock out, i think the system is lock when not hitting bumb or when climbing.

dxc

See the design galleries at www.geocities.com/r11ohm

the wonginator

beast: looks neat, but overly-complicated.

evo: MAKE IT! the linkage kind of looks like a canf1