Redesigned Slope Frame!!!!

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Redesigned Slope Frame!!!!
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flag besoshort
Posted: Mar 3, 2008 at 22:09 Quote
Looking for opinions and comments on my newest frame design. Started the concept for the frame about a year go and this is the 6th revision, 2nd in 3D. Fisrt 3D frame can be viewed at this link. http://vpfree.pinkbike.com/bb/viewtopic.php?t=162022

New frame specifications and geometry as follows:
Top Tube Length - 21.5"
Theoretical Top Tube - 22.4"
Rear Center/ Chainstay Length - 17"
Seat Tube Length - 14"
Standover Height - 24.9"
Bottom Bracket Height - 14"
Wheel Base - 43.5"
Recommended Fork Height - 19.2"
Rear Wheel Travel - 6.2"
Head Tube Length - 4.5"
Head Tube Diameter - 1.5"
Head Tube Angle - 67
Seat Tube Angle - 75.5
Rear Triangle Rotation - 14
Travel Ratio - 2.75 : 1
Shock Size - 7.875" x 2.25"
BB width - 73mm
Rear Spacing - 150mm x 12mm
Maximum Recommended Tire - 2.5"
Intention - Slopestyle and Light Freeride
Weight - 4.54 lbs (w/o shock)

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I will be making an actual 3d model of this frame from a 3d printer at my school. this is all for a scholarship project. Modeled using Autodesk Inventor 11.
flag Hummeroid
Posted: Mar 3, 2008 at 22:12 Quote
Like it, just seems like it has a pretty steep forward axle path. So steep it seems the rear tire would not achieve much travel till it hits the seat tube. Id love to see a diagram of the path though!
flag ellison
Posted: Mar 3, 2008 at 22:13 Quote
That looks sick man. The idea and actuly drawings look amazing . Hope to see it built eventually.. I'd buy one.
flag dmadness
Posted: Mar 3, 2008 at 22:14 Quote
look's like your not Fuking around.. It's well done, personally I dont think the top pivot looks burley enough, that's about all I got really.
look's tight.
flag PedalUpBombDown
Posted: Mar 3, 2008 at 22:19 Quote
that looks really good. if it was to go into production though, i'm curious if there would be any patent infringement issues with Maestro or DW.
flag besoshort
Posted: Mar 3, 2008 at 22:20 Quote
Hummeroid wrote:
Like it, just seems like it has a pretty steep forward axle path. So steep it seems the rear tire would not achieve much travel till it hits the seat tube. Id love to see a diagram of the path though!
i' can make one. i also have charts of the ratio's and exagerated axle paths to post. gotta find them first tho. haha been a long time.
flag Hummeroid
Posted: Mar 3, 2008 at 22:22 Quote
besoshort wrote:
Hummeroid wrote:
Like it, just seems like it has a pretty steep forward axle path. So steep it seems the rear tire would not achieve much travel till it hits the seat tube. Id love to see a diagram of the path though!
i' can make one. i also have charts of the ratio's and exagerated axle paths to post. gotta find them first tho. haha been a long time.

HOORAY! Youre the FIRST person on PB that actually was prepared for that one!!!!!!!!!!!!!!!!!!!!!!!!!!!
flag signorvince2
Posted: Mar 3, 2008 at 22:23 Quote
PedalUpBombDown wrote:
that looks really good. if it was to go into production though, i'm curious if there would be any patent infringement issues with Maestro or DW.

I was kinda thinking the same thing. Probably wouldn't be a big production bike though.

Looks awesome. I'd love to see how far you take it (If you need someone to test it for you, I'll pay shipping).
flag besoshort
Posted: Mar 3, 2008 at 22:24 Quote
Hummeroid wrote:
besoshort wrote:
Hummeroid wrote:
Like it, just seems like it has a pretty steep forward axle path. So steep it seems the rear tire would not achieve much travel till it hits the seat tube. Id love to see a diagram of the path though!
i' can make one. i also have charts of the ratio's and exagerated axle paths to post. gotta find them first tho. haha been a long time.

HOORAY! Youre the FIRST person on PB that actually was prepared for that one!!!!!!!!!!!!!!!!!!!!!!!!!!!
i'm lookin to get into this as a careers. i'm gonna start a whole line of frames and hopefully start a small company with my fiends some day in the future. or share my idea's with larger companies. probably safer that way. i'm also learning to weld and work with metal this semester. half days in the metal shop. Smile
flag penguinmaster
Posted: Mar 3, 2008 at 22:29 Quote
yeah man! i like the frame reminds me of the new 08 shore frame haha, what colors u thinking of mike? and how much travel? (compared to your older model)
flag besoshort
Posted: Mar 3, 2008 at 22:37 Quote
penguinmaster wrote:
yeah man! i like the frame reminds me of the new 08 shore frame haha, what colors u thinking of mike? and how much travel? (compared to your older model)
very thought out questions matt. try reading the specs. it's 6.2 inches of travel. and whatever colors i want lol.
flag iggz
Posted: Mar 3, 2008 at 22:37 Quote
4.5 lbs w/o shock? I see...

Other than that, looks fantastic. The toptube curve looks sweet, maybe a little less so the link doesn't pass it on compression but seriously other than that, I would buy it.
flag thud
Posted: Mar 3, 2008 at 22:40 Quote
beautifull man only thing that i woud ask is if its possible to suck in the top of the rear swing arm closer to the seat tube (width ways) just looks like it might be a little wide. i could be wrong though
flag Hummeroid
Posted: Mar 3, 2008 at 22:41 Quote
One other thing thats bugging me, why the hydraformed front triangle and the box-section rear? Looks off balance even on the silver version to me. Did FEA say taht you couldnt get enough strength out of having at least oval tubes on the rear triangle?
flag besoshort
Posted: Mar 3, 2008 at 22:44 Quote
i did a few experiments with metal while working on this frame that helped me lighten it up but i don't konw if my results were accurate. i found that aluminum is stronger when pulled then it is under compression. is this the case? looking for experienced answers on this one.
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