DnD Map Plotter - Part 2 - Plotter Hardware

HARDWARE

Here is the first image I created. What else would I have drawn?

All the 3D objects can be found here:
http://www.thingiverse.com/thing:648119

Many thanks to the corexy.com website for the inspiration to design this plotter.

In the first image below, notice one of the string travels all the way through to the corner idler pulleys? Need to keep that in mind in my 3-D parts.

Image Credit: corexy.com

Notice the 45 degree offset of these two pulleys in the picture below... I will need to use the diameter of the idler pulleys as a parameter when spacing the two holes.  OH NO! will I actually have to multiply a parameter by the square root of 2!  Yay, I'm using one of the 3 things I remember from my college degree.

Image Credit: corexy.com

DnD Map Plotter - Part 1 - Introduction

After 3 years of playing Dungeons and Dragons, Savage Worlds, Star Wars, Traveler, Dungeon Crawl Classic, etc. it is time that I became the Game Master for the Dungeon and Dragons 5th Edition campaign, "Hoards of the Dragon Queen".

Becoming a Game Master is new to me so I am learning that I have to read, read, and then review what I read. After reading, next is getting the miniatures and drawing some maps! Well, I can't just draw maps with my fingers, can I?

Time to make a plotter to draw these maps for me. The approach will be to design a rigid plotter following the CoreXY design. The link shows a great write up but below is the primary mechanics behind the design.

My approach will be to use: 

• Ridged Aluminum and metal yard sticks for the basic structure.
• Many 3-D printed parts
• 2 stepper motors (these are very affordable 28BYJ-48 from Amazon)
• 1 Arduino
• 1 PC/ Laptop
• 1 Servo (to lift the pen) 

Here are some demonstrations of the CoreXY movements:

Go to Part 2 - Hardware