Learn about assumptions and limitations of computer controls.
- [Instructor] Speed and precision are frequently…in conflict in manufacturing processes.…Any movement requires acceleration,…and accelerations generate force.…These forces cause machines to deflect,…which reduce the ability of a given machine…to maintain its manufacturing tolerance.…These deflections affect many types of machines,…from 3D printers, to water jet cutters, to CNC mills.…Any vibration in a machine, from motor energy,…to cutting forces during machining processes,…will add deflections.…
For subtractive processes like milling…or turning, tool bits wear over time.…CNC machines can compensate for tool wear…up to a point, as long as the tool bit…is still effectively removing material.…It is much more difficult for CNC equipment…to compensate for uneven temperature changes…of a part as it's manufactured.…Heating, from things like cutting forces…or 3D printer nozzles, can cause parts to expand and deform.…Material may be removed or added in ways…that violate dimension tolerances.…
- Where dimensioning goes wrong
- Basic GD&T rules and symbols
- GD&T from the engineering perspective
- Manufacturing design rules
- Interpreting GD&T in CAD models
- GD&T from the machinist perspective
- Understanding the tolerance limits of your shop
- Communicating your tolerance capabilities to potential customers
Skill Level Beginner
SOLIDWORKS: Integrated CAM with HSMXpresswith Gabriel Corbett2h 32m Intermediate
1. From Digital to Physical
Realities of manufacturing4m 46s
2. Introduction to GD&T
3. GD&T from the Engineering Perspective
4. GD&T from the Machinist Perspective
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