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Machine and Workpiece Coordinates

A CNC Router operates in a 3D universe. When you draw a shape on a piece of paper, you are creating a 2D image.  When...

Using a Touch Plate with BobsCNC

A touch plate is a simple electrical switch.  One side of the circuit is wired to the GND pin on the Arduino controll...

G Code 101: Header File Part 2

Bob and Keith talk about G Code Header Files, part 2

G Code 101: Header File, Part 1

Header File Explanation for G Code, Part 1

Estlcam: Engraving and Halftone

Bob shows how to import an image and create gcode for an engraving as well as for halftone.

Backlash… What it is and How to minimize it.

When you take a nut, thread it onto a rod you and can feel the movement as you push and pull the nut while keeping it...
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