Difference between revisions of "Assembly line assembly"

Revision as of 18:11, 28 August 2022

This page is only about the advantages / disadvantages of assembly line assembly compared to ...

• fixed station assembly and perhaps also
• part streaming assembly

This page is not about specific types of assembly line assembly
like covered here: Assembly lines in gem-gum factories

Speed

The needed-motion-length per part-placed is more

• near to the scale of the input parts rather than
• near to the output parts.

This is because

• there is no need to travel far inside (and back out of) the build chamber for every single addition of an input part
  This gives a gain in less-distance-needed-to-be-traveled on the order of the the branching factor B.
• More compact buildability due to spezialisation leading to further shortened travelshorter

Specialization

Special purpose built assembly robotics can be faster and/or smaller than general purpose assembly robotics.

• less extra moves: no need for operations like tool-head changes
• more compact robotics: functionality can be semi hardcoded by cams&followers shims and wedged.

Relation to part streaming assembly

Unlike assembly line assembly part streaming assembly ...

• needs a lot of space for streaming parts along the moving manipulators
• can be more general purpose programmable but not as much as fixed station assembly without losing its benefits (some planning ahead needed)

Like assembly line assembly part streaming assembly ...

• can give increased assembly speed (but not as much it seems – TODO to quantify)
• has the travel-distances-per-part-placed more near the input scale than the output scale

(TODO: Think about wether there are any cases where combining assembly line assembly and part streaming assembly makes dense??)

Related

• Assembly lines in gem-gum factories
• Bottom scale assembly lines in gem-gum factories
• Mechanosynthesis core