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Simple I2C interface
Input voltage monitoring (protects car batteries in the field)
When the other enable input is LOW
4mm hole permits more precise filament extruding without jamming
Timing Pulley GT2 (20 Teeth-8mm Inner Diameter-6mm width) thermo Simple I2C interfaceThe GT2 pulley with 20 teeth or grooves is one of the best choices for 3d printer construction or XYZ linear motion for small CNC because the gt2 pulley tooth profile is anti backlash. Why? The rounded teeth of this tooth and belt are engaged together longer providing a smoother transition between teeth. This is what you need for your 3D printer or transmission mechanism. This pulley has 20 teeth, and a 8mm inner bore. Two set screws can be used to
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