Fits, Limits, and Tolerances: Difference between revisions
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*[https://mae.ufl.edu/designlab/Lab%20Assignments/EML2322L-Tolerances.pdf A PDF by the Department of Mechanical & Aerospace Engineering at the University of Florida titled "Typical Tolerances of Manufacturing Processes" ] | *[https://mae.ufl.edu/designlab/Lab%20Assignments/EML2322L-Tolerances.pdf A PDF by the Department of Mechanical & Aerospace Engineering at the University of Florida titled "Typical Tolerances of Manufacturing Processes" ] | ||
*[https://youtu.be/UdXKaxhvzJ8?t=28 A Video by the YouTube Channel "Blondihacks" Titled "Fits and Tolerances, Oh My!" ] (Given they are a hobby machinist they give some good perspective on how various levels can be achieved in a small shop realistically, and also present it in a straightforward manner) | *[https://youtu.be/UdXKaxhvzJ8?t=28 A Video by the YouTube Channel "Blondihacks" Titled "Fits and Tolerances, Oh My!" ] (Given they are a hobby machinist they give some good perspective on how various levels can be achieved in a small shop realistically, and also present it in a straightforward manner) | ||
*[https://youtu.be/2429BVMrZ4A A Video by the YouTube Channel "tarkka" Titled "Fits and Tolerances: How to Design Stuff that Fits Together" ] | *[https://youtu.be/2429BVMrZ4A A Video by the YouTube Channel "tarkka" Titled "Fits and Tolerances: How to Design Stuff that Fits Together" ] (Only a six minute video, so quicker to see, the others are ~20 minutes) | ||
*[https://youtu.be/wvVMs2BZdeU A Video by the YouTube Channel "Tabletop Machine Shop" Titled "Limits and Fits: The ISO System" ] (Goes over the '''PROPER''' metric sytem, unlike the others shown above ''which use all the fraction of a thousands' of an inch'' mess) | *[https://youtu.be/wvVMs2BZdeU A Video by the YouTube Channel "Tabletop Machine Shop" Titled "Limits and Fits: The ISO System" ] (Goes over the '''PROPER''' metric sytem, unlike the others shown above ''which use all the fraction of a thousands' of an inch'' mess) | ||
Revision as of 20:49, 21 August 2021
Basics
- This page goes over Fits, Limits, and Tolerances, and the application of them in design
- Essentially nothing is perfect, and getting something closer to perfect is costly/time intensive (see degrees of flatness / Lapping and whatnot) so you define what is acceptable for the application (ie specific hole for a shaft, etc)
- By doing this ahead of time, you take the need for "fiddling" out of the assembly / iterative design process
- Press Fit is a common example
Internal Links
External Links
- The Wikipedia Page on Limits and Fits
- The Wikipedia Page on Engineering Fits
- The Wikipedia Page on Engineered Tolerances
- Limits, Fits, and Tolerance Calculator (ISO System)
- A PDF by the Department of Mechanical & Aerospace Engineering at the University of Florida titled "Typical Tolerances of Manufacturing Processes"
- A Video by the YouTube Channel "Blondihacks" Titled "Fits and Tolerances, Oh My!" (Given they are a hobby machinist they give some good perspective on how various levels can be achieved in a small shop realistically, and also present it in a straightforward manner)
- A Video by the YouTube Channel "tarkka" Titled "Fits and Tolerances: How to Design Stuff that Fits Together" (Only a six minute video, so quicker to see, the others are ~20 minutes)
- A Video by the YouTube Channel "Tabletop Machine Shop" Titled "Limits and Fits: The ISO System" (Goes over the PROPER metric sytem, unlike the others shown above which use all the fraction of a thousands' of an inch mess)