Critical Dimensions in Microfluidic Drawings
Which dimensions to identify as critical, which to leave open, and how to make a drawing that a manufacturer can act on.
Practical notes on preparing a microfluidic design for manufacture. Written for the person who drew the chip.
We publish here only what we can support. Where a value depends on a specific manufacturing route, we say so rather than printing a figure that looks authoritative and is not. Where a statement rests on published work, we cite it.
Which dimensions to identify as critical, which to leave open, and how to make a drawing that a manufacturer can act on.
How to build your own economic comparison rather than relying on a general threshold figure.
Read: Machined Prototypes vs Injection Molding: When Should a Microfluidic Project Switch?