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2 Dollar coin

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Evaluation of members on the printability, utility, level of detail, etc.
  • 701 views
  • 2 likes
  • 24 downloads

3D model description

Scanning one face of a 2 Dollar coin at a 0.15 mm grid resolution, it took about 8 hours to scan and about 42,000 points.

The precision of the probe is remarkable considering it is a DIY using some washers, soldered on a prototype PCB board, and a sewing needle for the touch probe.

To put in perspective the height of the letters on the coin are ~ 0.048 mm (that's 1 mm / 21)

This is on a DIY 3D printer, with Duet WiFi. I made a program in C++ that controls the 3D printer through Telnet over WiFi. The program exports an XYZ file, and also an STL file.

Here's a video with it in action: https://youtu.be/9lPobTaEvIE

Not sure when I will scan the other side of the coin...

  • 3D file format: STL

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CC BY


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