Difference between revisions of "Pulses per Microliter"
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== EMO and VOL == | == EMO and VOL == | ||
− | The EMO and VOL heads | + | The EMO and VOL heads each have: |
− | + | A. A 1.8° stepping motor, running in 1/16th microstep mode; | |
+ | B. A 27:1 planetary gear; | ||
+ | C. A 1:1 drive screw coupling; | ||
+ | D. A drive screw with a pitch of 18 threads per inch, or 1.411 thread per mm; | ||
+ | E. And a reservoir with a 17 mm diameter, or 227 mm<sup>2</sup> cross section. | ||
− | + | The table below explains how a certain number of pulses (or microsteps) on the motor will generate a certain volume displacement in the reservoir - the pulses/µL number that we need to control the material flow. | |
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Revision as of 17:21, 27 July 2020
This is to explain the various gearing on our different heads.
EMO and VOL
The EMO and VOL heads each have:
A. A 1.8° stepping motor, running in 1/16th microstep mode; B. A 27:1 planetary gear; C. A 1:1 drive screw coupling; D. A drive screw with a pitch of 18 threads per inch, or 1.411 thread per mm; E. And a reservoir with a 17 mm diameter, or 227 mm2 cross section.
The table below explains how a certain number of pulses (or microsteps) on the motor will generate a certain volume displacement in the reservoir - the pulses/µL number that we need to control the material flow.