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LM317 onboard power option MassMind.org THB6064AH

299 views · Published 9 December 2015 · 9:21 · Indexed 14 October 2026

Channel: James Newton · 2015 · Science & Technology

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LM317 onboard power option assembly for MassMind.org THB6064AH stepper motor driver. 
http://www.massmind.org/Techref/io/stepper/THB6064/index.htm

You can purchase this option from:
http://www.ecomorder.com/techref/ecomprice.asp?p=416025

If you do install this option, the LM317 goes in U2, with the tab towards the outside of the PCB, and the 240 and 680 ohm resistors are just above it. Note: you may be supplied with a 330 ohm resistor (that goes in place of the 240) and a 1K (instead of 680); 330/1000 is actually closer to 5V. 

Keep in mind, you will be applying  more than 9 volts to VM+ when testing logic power.

And... talking to meters, crying cat (she's fine, mommy and the kids are away and she has separation anxiety), and leads that go wrong on the video after practicing without a problem before recording. ,o)

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