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  1. #1
    Join Date
    May 2005
    Posts
    14

    RFQ For a Mountain Bike part

    I need a somewhat small custom part made for a mountain bike. I may have to simplify the design to make it more cost effective. Any additional imput is welcome. Even if someone can do this by hand on a mill it should be ok.

    The main concern is allignment of the 4 holes. The 2 big cutouts and other fillets dont have to be exact. I have attached a zipped igs file. Material would be 6061 T6. I dont need this part right away either.

    FYI this is a disc brake adaptor for an AMP B3 frame to IS disc.

    Attached Files Attached Files

  2. #2
    Join Date
    Jul 2004
    Posts
    93
    Bender , would like to quote yor part looks simple enough . the biggest cost would be fixturing setup. but still not that bad. always looking for custom parts to do.
    I work in the semiconductor machine trade on the weekends and have a bridgeport cnc at the house . please contact me ,and I will give you a quote
    Thanks Brad
    IF ITS NOT BROKE YOUR NOT TRYING HARD ENOUGH

    Ashes to ashes , dust to dust , If it wasnt for Harleys the fast lane would rust.

    (Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)

  3. #3
    Join Date
    Apr 2004
    Posts
    24
    .
    Quote Originally Posted by Bender
    I need a somewhat small custom part made for a mountain bike. I may have to simplify the design to make it more cost effective. Any additional imput is welcome. Even if someone can do this by hand on a mill it should be ok.

    The main concern is allignment of the 4 holes. The 2 big cutouts and other fillets dont have to be exact. I have attached a zipped igs file. Material would be 6061 T6. I dont need this part right away either.

    FYI this is a disc brake adaptor for an AMP B3 frame to IS disc.


  4. #4
    Join Date
    May 2005
    Posts
    14
    Quote Originally Posted by broken003
    do you have any qutotes for this part? what kind of pricees did you get for this part? I'm always looking to help out a fellow mountain biker. Maybe I can make this a little more affordable than the others. It looks like the material alone will cost about $20. How much were you expecting to pay? I'll help if I can...let me know. you can email me directly at [email protected]
    Yes I have about 5 quotes so far. I highly doubt it would cost $20 for a piece of 6061 T6 that small. I can get a piece big enough for under $4 and thats not even purchasing in quantity. Expecting to pay? Thats tricky, I dont want to throw around a ton of money but on the other hand I do need the part. I'll email you some more details and see what you think.

  5. #5
    Join Date
    Apr 2004
    Posts
    24
    I was looking at www.metalexpress.net a 2.5"x2.5"x 1" piece is $15+ as I dont have material that size on hand, but if you can find it locally at a better deal then thats the way to go. maybe I have the dimensions wrong, thats about the size I calculated when I imported the file (which wasn't didnt import cleanly)

  6. #6
    Join Date
    May 2005
    Posts
    14
    I have been looking at www.onlinemetals.com for what I need. I have purchased copper and aluminum there before. For only purchasing a small quantity the prices seem great. A 3" by 3" by .75" piece of 6061 T6 is about $4 currently.

  7. #7
    Join Date
    May 2005
    Posts
    14
    I have someone making the part in a week or so. I'll post pictures when complete.

  8. #8
    Join Date
    May 2005
    Posts
    14
    I just wanted to post a picture of the final product. I have had a chance to test it out on some very steep descents. I notice zero flex or performance loss from the brakes.

    Thanks a bunch for all who helped!


  9. #9
    Join Date
    Nov 2004
    Posts
    320
    bender
    where did you find the isis specs for disc mounts ?
    mike

  10. #10
    Join Date
    May 2005
    Posts
    14
    I found the IS standard online but I didnt need it. A guy on an MTB forum built a similar adaptor with hand tools so he had the dimensions for AMP Disc to IS.

  11. #11
    Join Date
    May 2003
    Posts
    550
    Bender, did you convert from an existing amp Disk setup ? if so how is the Isis caliper better than the AMP cable operated caliper? Have you had to change shocks? Mine (b5) blew several AMP shocks until I replaced it with a Resse Air.

    Nice job by the way.. \

    Andrew

  12. #12
    Join Date
    Apr 2004
    Posts
    40
    Hi Bender
    the part i did for you looks great! it is nice to see parts in their final application... cool

    glad you were happy with the 'service'

    Phil

  13. #13
    Join Date
    May 2005
    Posts
    14
    I never had the AMP disc brake. Converting to IS ment that I can use about 99% of the disc brakes out on the market today. I chose formula B4 discs because they are very light and offer great modulation and stopping power. I bought my B3 frame from a guy who had it for 6 months and he had a Risse genesis shock on it. The oem shocks were good but prone to leakage.

    Here is my bike as of a month ago. I have since changed to a different carbon fiber crank and a scandium alloy bottom bracket.

    http://light-bikes.com/bikegallery/B...ing.asp?id=175

    Here is one of my 2 AMP B5 frames. Both have the carbon rear ends.


  14. #14
    Join Date
    Jun 2004
    Posts
    450
    The company I just started working for, used to make carbon fiber bike frames. Here's a pic. http://www.fiberdynamics.net/products/sporting.html

    Not sure if they still make them though, as I haven't seen any.
    Dustin B.
    ================
    I hear and I forget.
    I see and I remember.
    I do and I understand.

  15. #15
    Join Date
    Jan 2004
    Posts
    92
    As I see there are some bike enthusiasts on the zone, I was curious as to what the thoughts are on Cane Creek bike products. Any feedback would be appreciated.

    Thanks,
    Gunner

  16. #16
    Join Date
    Aug 2003
    Posts
    812
    Nice job on that part, whoever made it.

  17. #17
    Join Date
    Apr 2004
    Posts
    40
    Thanks
    Bender supplied an excellent solid file.. made it easy to cut

    Phil

  18. #18
    Join Date
    Nov 2004
    Posts
    320
    did'nt know amp still made bikes.
    knew a few guys that had them but the general opinion was they were a bit soft
    for u.k. conditons
    crane creak stuff - headsets are okay but the shocks ...see above.
    mike

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