If you "zip" the file and attach it, you can post it here. I did on Curt's springer build and it worked just fine.Indian Mark wrote:Thanks! OK, Uh...I have the files converted to DXF. I'll try to attach them and see what happens.
OK, It says DXF not allowed. Anyone that wants the files (I converted the rockers, spring perch, spring plate, and top and bottom trees) please send me an email. My email address is: mdforan at frontier dot com. (I spelled it out because of the automatic spamming searching thingies)
springer rocker dxf files
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hansgoudzwaard
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Re: springer rocker dxf files
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hansgoudzwaard
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I started a project build there " File and Fit." I paln to continue that when I go back home in Dec. 2011. I first joined the board when Gary W had it in the year 2005. That was the time I really gained an interest in building chops. I have a long way to go, compared to some here.
Re: springer rocker dxf files
This is the dxf file for the flat rockers.
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gww25
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Re: springer rocker dxf files
You guys watch out on those rocker patterns as the hole spacing from the rear pivot point to the sprung-leg pivot point can come back to bite you depending on the spacing at the upper trees and perch. This is why I've never posted any patterns. You have to look at the total geometry of the fork suspension movement in relation the leg spacing to get the rocker bores properly spaced.
As a very very very general rule of thumb you want the rocker pivot point bores spaced to match the distance between the front and rear leg spacing. For example with a set of forks having a 2.5" spacing between front and rear legs the same dimension can be used on the rocker pivot point spacing. This is just a very general rule as there are several issues that have to be taken into consideration but a lot has to do with the amount of compresion allowed by the springs that you're using which will determine the overall amount of rotation that the rockers will be seeing. Rockers can be looked at as having 3 'attitudes'. One is when thay are fully extended, one is when they are fully compressed and one is when they are inbetween full extension and full compression. You can tune the forks anywhere between these 3 ranges by changing springs or just adding spring shims and/or by changing the distance to the axle pivot point. This is why good springers are always custom made for a specific bike. Off the shelf springers seldom work very well.
As a very very very general rule of thumb you want the rocker pivot point bores spaced to match the distance between the front and rear leg spacing. For example with a set of forks having a 2.5" spacing between front and rear legs the same dimension can be used on the rocker pivot point spacing. This is just a very general rule as there are several issues that have to be taken into consideration but a lot has to do with the amount of compresion allowed by the springs that you're using which will determine the overall amount of rotation that the rockers will be seeing. Rockers can be looked at as having 3 'attitudes'. One is when thay are fully extended, one is when they are fully compressed and one is when they are inbetween full extension and full compression. You can tune the forks anywhere between these 3 ranges by changing springs or just adding spring shims and/or by changing the distance to the axle pivot point. This is why good springers are always custom made for a specific bike. Off the shelf springers seldom work very well.
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curt
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Re: springer rocker dxf files
so what is the best way to determine the distance i should be useing? i am at the beginning stages of building a springer for myself and i definatly want to build a few more so ive been stuffing my head with all the info i can get i have a horrible time with all the math but i really do want to learn all i can i like the long bikes and springers in my mind always had that look that made me want to own a bike to begin with . i want the best possible one i can get my fat hands on i like the one i already built but i know i can do better with more info . i know i can physically build one thats the easy part now i want to understand the principals of setting it up properly making it handle and perform like it should
ever notice when you hit somethin or someone with a hammer you feel instantly better
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hansgoudzwaard
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I started a project build there " File and Fit." I paln to continue that when I go back home in Dec. 2011. I first joined the board when Gary W had it in the year 2005. That was the time I really gained an interest in building chops. I have a long way to go, compared to some here.
Re: springer rocker dxf files
Trying to keep this in mind, I will try to experiment when I do the mockup. I can always change the DXF file to suit.
- Payattention
- rockers.JPG (157.84 KiB) Viewed 1353 times
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curt
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- Location: utica new york
Re: springer rocker dxf files
see this is the confuseing part i understand this to say the distance doesent matter much am i reading it wrong? i am keeping with the design of the trees and spring plates on top i really like the design .
ever notice when you hit somethin or someone with a hammer you feel instantly better
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hansgoudzwaard
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I started a project build there " File and Fit." I paln to continue that when I go back home in Dec. 2011. I first joined the board when Gary W had it in the year 2005. That was the time I really gained an interest in building chops. I have a long way to go, compared to some here.
Re: springer rocker dxf files
I agree with you. We will see what GWW says.curt wrote:see this is the confuseing part i understand this to say the distance doesent matter much am i reading it wrong? i am keeping with the design of the trees and spring plates on top i really like the design .
I am going to go with the 2.5" distance and see if thats OK.
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gearhead1951
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I dont know if I can think of enough to say to reach the two hundred charactor minimun set by the mods , but I will persevere - Location: Greenock Scotland
Re: springer rocker dxf files
Its a matter of geometry , the change of arc created by the change in distance from the rigid fork pivot to the sprung fork pivot is so small that angle change at the sprung fork guide rods and the guide block is almost inperceptable as is the change in extended to compressed length of the affected springs !
The differences between the mentioned rockers is then all cosmetic !
The differences between the mentioned rockers is then all cosmetic !
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hansgoudzwaard
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I started a project build there " File and Fit." I paln to continue that when I go back home in Dec. 2011. I first joined the board when Gary W had it in the year 2005. That was the time I really gained an interest in building chops. I have a long way to go, compared to some here.
Re: springer rocker dxf files
Found this online ;you may like the design . Dimensions unknown.curt wrote:
someone from here sent me this some time ago i cant remember who. i really like this design anyone ever seen this before is it someones custom design does anyone have deminsions
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curt
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- Location: utica new york
Re: springer rocker dxf files
image wont load
ever notice when you hit somethin or someone with a hammer you feel instantly better
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hansgoudzwaard
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- SELF INTRODUCTION: I was on the last board as bonustoolkit. I have changed that to my given name.
I started a project build there " File and Fit." I paln to continue that when I go back home in Dec. 2011. I first joined the board when Gary W had it in the year 2005. That was the time I really gained an interest in building chops. I have a long way to go, compared to some here.
Re: springer rocker dxf files
- nicestyle
- OOO...sharp.JPG (47.55 KiB) Viewed 1321 times
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curt
- Long in the Tooth
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- Location: utica new york
Re: springer rocker dxf files
those are cool
ever notice when you hit somethin or someone with a hammer you feel instantly better
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railroad bob
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I just returned home from a 2 week trip in New Mexico, have a few good pix, can't wait to share my off-highway traveling. Got to put 1400 miles on the scoot.
Best, Bob Davidson - Location: Alaska
Re: springer rocker dxf files
Are those the ones hosedragger did? IIRC he did some shaped like a Schrade knife blade.
Alaska - Land of the Individual and Other Endangered Species
An Armed Society is a Polite Society,...
Politicians Prefer Unarmed Peasants
TANSTAAFL
An Armed Society is a Polite Society,...
Politicians Prefer Unarmed Peasants
TANSTAAFL
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hansgoudzwaard
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- SELF INTRODUCTION: I was on the last board as bonustoolkit. I have changed that to my given name.
I started a project build there " File and Fit." I paln to continue that when I go back home in Dec. 2011. I first joined the board when Gary W had it in the year 2005. That was the time I really gained an interest in building chops. I have a long way to go, compared to some here.
Re: springer rocker dxf files
Bob; Thanks for the JPCYCLES link.
The rockers shown are from a CW build log.
The style would not go unnoticed.
The rockers shown are from a CW build log.
The style would not go unnoticed.
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Maxthegardener
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Re: springer rocker dxf files
They are nice, as theres 4 I think there off the Harman type girder posted by Yona.. Got a link to the build log Hans??