BarBot/Components/Syringe: Difference between revisions
< BarBot | Components
Iandickinson (talk | contribs) Created page with "== The Big Syringe == ===General Description=== One massive syringe (Thanks to Toby!). Automated through use of a car door window mechanism and a BTS7960B high current H-brid..." |
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Latest revision as of 11:49, 5 February 2019
The Big Syringe
General Description
One massive syringe (Thanks to Toby!). Automated through use of a car door window mechanism and a BTS7960B high current H-bridge. Can suck up and dispense liquids. Speed of suck / dispense controlled by two PWM signals to the H-bridge.
Notes:
- Don't touch the motor! It can get damn hot.
- There's a finger trap point at the top. Take care. It hurts when it bites!
Mounting & hardware
It's all mounted in a wooden frame. Use wood screws.
Logical
Two PWM signals needed. One for forwards, one for reverse. When using one, the other should be set to zero. Don't keep the motor running once it's reached the end. This will waste power and cause the motor to overheat.
Connections
- +12V
- Ground
- 2 x PWM signals
Power
+12V, about 5A peak
Bling
None whatsoever!