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  1. #1
    Join Date
    Mar 2006
    Posts
    29

    A Backwards request here...

    I have spent the last few years making parts for myself, so I have never needed the ability to quote fabrication rates. I have just received my first job from a neighbor, and I could use some input to quote a price that is fair.

    This neighbor is a factory-sponsored rider who races motorcycles. I have received a job to make 2 identical parts:

    -4140 Steel
    -2" x 2.1" x .850" thk.
    -.5" x .5" square recess at edge
    -.250" slot cut fully through along center of recess, 1.5" length, .125" radius
    at ends
    -accurately located M25x1.50 threaded hole cut fully through .850" thick
    part, threaded half way. The rest of the hole is bored to 1.125

    My outline of the job procedure:
    -Cut 2"x1" bar to near length of 2.1"
    -Machine blocks to accurate length and squareness, achieving final length
    -Machine 1" thickness to final thickness of .850" using indexable face mill
    -Cut recess along edge that measures .5" below surface and .5" in from side
    -Cut .250" wide bolt slot
    -Locate hole and drill .250" hole through part.
    -Enlarge hole using .625" counterbore
    -Bore stepped hole using manually-adjusted boring head in mill.
    -Tap threads
    -Finish part with file to soften edges and remove tool marks.

    I made a rough sketch in MSPaint to help visualize the part...

    Opinions?

    Thank You!
    Attached Thumbnails Attached Thumbnails block.bmp  

  2. #2
    Join Date
    Mar 2005
    Posts
    103
    Sorry I can't help with the quote, but who is the rider? and what is the part for? does he race motocross? good luck on your first job.

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