Solder Paste Dispenser V4 & V5 5V USB Liquid - water drops tests with few needles




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Published on Jun 10, 2016

Solder paste dispenser is generally to be used with solder paste (or flux, liquid, glue,..) syringe volume 10-15ml.
Joystick will control & turn stepper motor shaft left or right and move piston in direction chosen, green LED indicates motor rotation. Stepper motor has auto reverse movement to prevent continues flow of paste through the needle (oozing). Auto reverse can be user adjusted with trimmer on PCB.
Stepper speed is additionally controlled with joystick – 5 speed and 5 LEDs to precise control dispensing. Auto reverse is in effect after each dispense to minimise oozing.

Very powerful stepper motor with full metal gears & tremendous pressure is used for SMD SMT solder paste compressing in syringe to flow through the needle and drop to PCB.
Power Supply needed (not included in scope): 5V DC – 0.5-1A – use USB cable and phone charger or computer USB port…or similar.
For more details see description, photos, videos and blog at


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