30 Apr '16, 8pm

Is It A Stepper? Or Is It A Servo?

Is It A Stepper? Or Is It A Servo?

Almost everyone who is involved with 3D printing thinks to themselves at some point, “this could all be done using a closed-loop system and DC motors”. Or at least everyone we know. There’s even one commercial printer out there that uses servo control, but because of this it’s not compatible with the rest of the (stepper-motor driven) DIY ecosystem. [LoboCNC] wanted to change this, and he’s in a unique position to do so, having previously built up a business selling PIC-based servo controllers. His “servololu ” is essentially a microcontroller and DC motor driver, with an input for a quadrature encoder for feedback. The micro takes standard step/direction input like you would use to drive a stepper motor, and then servos the attached DC motor to the right position. It even signals when it has an error. The unfortunate side effect of [LoboCNC]’s old day job means that he ca...

Full article: http://hackaday.com/2016/04/30/is-it-a-stepper-or-is-it-a...

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hackaday.com 24 Apr '16, 8am

[Rjeuch] liked a wooden clock he saw on the Internet, but the gears were produced with a proprietary software tool. So he ...

#Board_Products #Electrical_Engineering #Tech Multi-axis servo drive unit handles precision control

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electronicproducts.com 24 Apr '16, 4pm

The NPArm fully integrated 19" 6U rack mounted multi-axis servo drive system uses NanoPWM technology with guaranteed bette...