In this tutorial Max covers how to turn a freely available digital elevation map into a 3D model and how to prepare the model for CNC milling. The Programs you will need for this Demo are: 1. QGIS (free) - download link: www.qgis.org/en/site/forusers/download.html - (We use this open source Geographic Information System to convert the downloaded data from NationalMap.gov into a GeoTiff) 2. 3DEM (free) - download link: freegeographytools.com/2009/3dem-website-is-gone-but-3dem-still-available-here - (We use this terrain visualization program to convert the GeoTiff into a .DEM) 3. Accutrans3D (free for 30 days) - download link: www.micromouse.ca/downloads.html - (We use this program will convert the .DEM file into a detailed 3D Mesh Model) - Note: This is a fully working download, but after 30 days you are expected to buy a $20 license. 4. Vectric Aspire or similar 3D CAM software - (Having created the 3D Model, We will use Aspire to toolpath it for 3-axis CNC machining) Easy and Free Sites for Digital Elevation Maps: - NationalMap: viewer.nationalmap.gov/basic/ - EarthExplorer: earthexplorer.usgs.gov/ If you have questions you can leave a comment or contact max_miller@lagunatools.com.

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