Summary

Idea from https://www.thingiverse.com/thing:1514145

Video 1 - https://www.youtube.com/watch?v=RaF-51-CU9M

Video 2 - https://www.youtube.com/watch?v=uBcLFdH8MyY

Remix

Axis Y1
Axis Y2
Axis Z
Pen Holder

This machine maked for testing GCODE and for my child, she is like draw.

This project include all files: stl + video + grbl09_corexy.rar + photos

UPDATED 28.08.2017

ADD kernel_holder_with_springs

How I Designed This

GRBL 0.9 Settings Epprom

            <div><p>$0=10 (step pulse, usec)<br>$1=25 (step idle delay, msec)<br>$2=0 (step port invert mask:00000000)<br>$3=0 (dir port invert mask:00000000)<br>$4=0 (step enable invert, bool)<br>$5=1 (limit pins invert, bool)<br>$6=0 (probe pin invert, bool)<br>$10=3 (status report mask:00000011)<br>$11=0.010 (junction deviation, mm)<br>$12=0.002 (arc tolerance, mm)<br>$13=0 (report inches, bool)<br>$20=0 (soft limits, bool)<br>$21=1 (hard limits, bool)<br>$22=1 (homing cycle, bool)<br>$23=3 (homing dir invert mask:00000011)<br>$24=25.000 (homing feed, mm/min)<br>$25=1000.000 (homing seek, mm/min)<br>$26=250 (homing debounce, msec)<br>$27=1.000 (homing pull-off, mm)<br>$100=100.000 (x, step/mm)<br>$101=100.000 (y, step/mm)<br>$102=500.000 (z, step/mm)<br>$110=2000.000 (x max rate, mm/min)<br>$111=2000.000 (y max rate, mm/min)<br>$112=2000.000 (z max rate, mm/min)<br>$120=10.000 (x accel, mm/sec^2)<br>$121=10.000 (y accel, mm/sec^2)<br>$122=10.000 (z accel, mm/sec^2)<br>$130=293.000 (x max travel, mm)<br>$131=197.000 (y max travel, mm)<br>$132=25.000 (z max travel, mm)</p></div>                <p class="detail-title"><strong>GRBL config.h</strong></p>            <div><p>define HOMING_CYCLE_0 (1&lt;&lt;Z_AXIS)<br>define HOMING_CYCLE_1 (1&lt;&lt;X_AXIS)<br>define HOMING_CYCLE_2 (1&lt;&lt;Y_AXIS)</p><p>define HOMING_FORCE_SET_ORIGIN</p><p>define COREXY</p></div>                <p class="detail-title"><strong>Price</strong></p>            <div><p>08.2017</p><ol><li>Fan 50x50 = 1 USD</li><li>Arduino Uno + Shield + Drivers A4948 = 10 USD</li><li>Belt 2m = 2 USD</li><li>Nema 17 42SHD0001 - 2 * 8 = 16 USD</li><li>LM8UU - 8 * x = 5 USD</li><li>Roller GT - 2 * 0.75 = 2 USD</li><li>28 BYJ - 48 - 12 В = 2 USD</li><li>Rod 415 + Rod 300 = 20 USD</li><li>Wires = 5 USD</li><li>Other - 10 USD</li></ol><p>Total by 08.2017 = 73 USD</p></div>

Drawing Machine Grbl CoreXY 0.9j with Axis Ends