Quality Control: Difference between revisions

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=Sat Aug 31, 2019=
=Basics=
*D3D 19.06 - Y2 axix must be constrained only in the Y direction, not X, since that is the auto parallel. The implication is that the linear bearings on Y2 can be loose in the X direction, but not in the Y direction
*The Process in Manufacturing and Commerce, where the product/service is examined (Usually with randomly selected samples) to maintain consistent quality, and properties
*Just one electric tape layer around bearing could overtighten the bearings, while without this layer the bearings could be perfectly smooth. -> Even one half layer made it stick.
*Also should occur to a lesser degree (ie non destructive testing and benchmarks) at the end of an assembly line
*Y carriage upper bolts are inaccessible without a nut holder tool. Move axis away from frame?
 
*Overtightening bolts on lightest drill setting can bend the 20% carriage. Carriage may want to be printed with 40% and highest quality possible.
=OSE Context=
*Temperature overshoot of bed makes you wait a bit of time for temp to drop back down on startup.
For producing kits, OSE performs quality control to test components for functionality according to a checklist of critical items. The critical items list is defined as the requirement for a fully functional machine: functional aspects in whose absence a given product would simply not work.
*Smell from rock wool should be eliminated with non off-gasing material
 
Individuals who qualify to: (1) understand the required quality control procedures; (2) implements those procedures to verify full product functionality - may receive quality control certification from OSE. OSE solicits such individuals as producers of OSE-certified products.
 
In OSE's enterprise development procedure, we define the procedures and protocols for quality control and publish these openly on the OSE wiki, using the Enterprise wiki template, <nowiki>Template:Enterprise</nowiki>
 
=Prusa=
 
[[Prusa Factory]] basically tests every part that goes into their printer [https://www.youtube.com/watch?v=CLCpNIx3O0M] [https://www.youtube.com/watch?v=BjoQw5fGk6Q]. For example
* [[Inductive Sensor]]: "this is another of our testers this is for testing the induction sensors so they get plugged in and they're heat cycles so we know if they measure the same same distance if there are hot or not"
* electronics "simulation" (with test report)
* power supply
* weighing of kits (as sanity check)
* check for level of heatbed
 
=Methods=
*[[Destructive Testing]]
*[[Non-Destructive Testing]]
*[[Benchmark Based Testing]]
 
=Internal Links=
*[[Six Sigma]]
*[[Quality Assurance]]
 
=External Links=
*[https://en.wikipedia.org/wiki/Quality_control The Wikipedia Page on Quality Control]
 
[[Category: Reliability Engineering]] [[Category:Logistics]] [[Category:Business/Enterprise]]
 
=Links=
*[[Distributed Quality Control]]
*[[D3D Print Quality Requirements]]
*[[Controller Quality Control Records]]

Latest revision as of 03:26, 3 February 2022

Basics

  • The Process in Manufacturing and Commerce, where the product/service is examined (Usually with randomly selected samples) to maintain consistent quality, and properties
  • Also should occur to a lesser degree (ie non destructive testing and benchmarks) at the end of an assembly line

OSE Context

For producing kits, OSE performs quality control to test components for functionality according to a checklist of critical items. The critical items list is defined as the requirement for a fully functional machine: functional aspects in whose absence a given product would simply not work.

Individuals who qualify to: (1) understand the required quality control procedures; (2) implements those procedures to verify full product functionality - may receive quality control certification from OSE. OSE solicits such individuals as producers of OSE-certified products.

In OSE's enterprise development procedure, we define the procedures and protocols for quality control and publish these openly on the OSE wiki, using the Enterprise wiki template, Template:Enterprise

Prusa

Prusa Factory basically tests every part that goes into their printer [1] [2]. For example

  • Inductive Sensor: "this is another of our testers this is for testing the induction sensors so they get plugged in and they're heat cycles so we know if they measure the same same distance if there are hot or not"
  • electronics "simulation" (with test report)
  • power supply
  • weighing of kits (as sanity check)
  • check for level of heatbed

Methods

Internal Links

External Links

Links