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Lew Merrick, PE

Personal website of Lew Merrick, PE

Technical Papers


100° Countersink Table

82° Countersink Table

Acme Thread Data Sheets

Stub_Acme_Thread_Data_Sheets Rev A

A Brief History of Screwthreads

Angle Plate Doc

Basics of Spurgear Calculations

Classes_of_Fit_in_Screwthreads

Countersunk Fastener Hole Considerations

Introduction to CAD Index 20170614A

Introduction to Stress and Strain

Introduction_to_Surface_Finish_and_Mechanical_Design

O-Ring_Seal_Application

Organizing CAD Data

Pilot_Hole_Considerations_Rev-A

Rotational_Dynamic_Design_Formulae

UN_Thread_Data_Chart Rev D

Washer_Application_and_Dimensions_Inch_Size

Bending Allowance Calculations for Sheetmetal — Rev New 20181115A
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