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Free Gearcutting Program By Lance Weston

Discussion in 'DRAWING, LAYOUT & CAD' started by Nels, Dec 6, 2016.

  1. Nels

    Nels United States Founder Staff Member H-M Supporter-Premium

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    Location:
    Eastern Queens, NY
    City:
    Eastern Queens
    State:
    New York

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    https://www.dropbox.com/s/a5i33b0pjiwdrtq/Gear Spreadsheet 20160916.xls?dl=0

    Number of Teeth
    A1
    100 upload_2016-12-6_20-2-47.png
    Diametrical Pitch (DP) 20
    Pressure Angle 14.5
    Outside Diameter (OD) 5.10000
    cut depth <= 20 DP 0.12400
    cut depth > 20 DP 0.11570
    Base Diameter (Db) 4.84074
    Pitch Diameter (PD) 5.00000
    Addendum (a) 0.05000
    Dedendum <= 20 DP (d) 0.06200
    Dedendum > 20 DP (d) 0.05785
    Tooth thickness at Pitch Diameter (t) 0.07854
    Circular Pitch (p) 0.15708
    Whole Depth <= 20 DP (hw) 0.11200
    Whole Depth > 20 DP (hw) 0.10785
    Root Diameter <= 20 DP 4.87600
    Root Diameter > 20 DP 4.88430
    Clearance <= 20 DP 0.01200
    Clearance > 20 DP 0.00785
     

    Attached Files:

    Last edited: Dec 6, 2016
  2. Uglydog

    Uglydog United States Active User H-M Supporter-Premium

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    Thank you Nels.
    I'll likely continue to first very slowly work through the math. Very slowly.
    After I think I've got it. Then I check your program and learn if I've got it right!

    Thank you,
    Daryl
    MN
     
  3. roadie33

    roadie33 Active User H-M Supporter-Premium

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    Thanks Nels, will definitely be good to have when I finally get an RT.
     

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