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DIY stepper shield
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README.md

Stepper Shield

This is a simple 3 axis stepper motor Arduino Shield for the DRV8825 Step Stick. It works with GRBL on an Aruduino Uno or TinyG on an Arduino Due. The circuit board for this shield is single-sided and can be milled on a precision CNC machine using a 1/32" endmill.

shield

To get started, select 'stepper shield' in the 'projects' list in the app below to access the design and click 'Make' to download the cut file for your milling machine.
Shield Milling App

There are two designs. One design uses DIP holes for the through hole components and the other design has larger holes for copper rivets. (see images below)

shield
shield
shield

rivets

shield
shield

pin map

shield

parts

shield

power jack
  qty: 1
  digi-key part# CP-002AHP JCT-ND
  $1.44

drv8825 Step Stick
  qty: 3
  $3.50

100uF cap
  qty: 2
  digi-key part# PCE3916CT-ND
  $0.64

male header 40 pos
  qty: 1
  digi-key part# S1011EC-40-ND
  $0.66

femal header 50 pos
  qty: 1
  digi-key part# SAM1213-50-ND
  $4.05

optional parts
(protection diodes, 5v & 24v indicator leds)

smd bridge rectifier (protection diodes)
  qty: 6
  digi-key part# HD01DICT-ND
  $0.46

green led SMD 1206
  qty: 1

resistor 499 Ohm SMD 1206
  qty: 1

red led SMD 1206
  qty: 1

 resistor 2.99k Ohm resistor
  qty: 1

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