DRV8818 Stepper Driver Module for 3D Printers

RAMPS compatible driver module based on DRV8818 by Dean Gouramanis:

Screenshot from 2017-11-15 01-01-04

DRV8818 Stepper Driver Module for 3D Printers

The goal of this project is to fit the DRV8818 driver circuit onto the standard 0.8″ X 0.6″ PCB size used in RAMPS 3D printers. DRV8825 drivers are a popular choice for desktop 3D printers, because they can provide up to 2.5 amps peak current. The DRV8818 is a similar IC capable of driving up to 3.5 amps, but the circuit is too large to fit on PCB using regular methods. Also, without a propper heatsink it will overheat.

Schematic, gerbers and mechanical CAD files are shared on GitHub:

dgouramanis/T18_driver

 
DRV8818 Stepper Driver Module for 3D Printers

Analog CPU Gauge

Adam Fabio¬†created this analog gauge to show your computer’s CPU utilization:

Analog CPU Gauge

The goal of this project was to build an analog gauge to display computer CPU utilization. I’ve always been fond of classic analog gauges. Most CPU Gauges are either digital on screen displays, or implemented with an LCD mounted in a drive bay

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The goal of this project was to build an analog gauge to display computer CPU utilization. I’ve always been fond of classic analog gauges. Most CPU Gauges are either digital on screen displays, or implemented with an LCD mounted in a drive bay.

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I’d always wanted a CPU gauge for my computer. Ok, and a bandwidth gauge for my router. You name it, I want a nice analog gauge for it. It always seemed a bit silly to use an true galvanometer based analog gauge for signals that are inherently digital.

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The board is available on Tindie:

tindie-logo2x

Analog Gauge Stepper Breakout Board

Tiny stepper motors for analog gauges and the like!

Analog CPU Gauge