In SX Microcontrollers, SX/B Compiler and SX-Key Tool, havenith wrote:

Now that Polywogs has released his source for a--quite extensive--3-axis controller (see [url=http://forums.parallax.com/forums/default.aspx?f=7&m=223702]this thread[/url]), I thought it would be time for me to publish mine as well :-)

The code attached is a relatively simple controller for 3 stepper motors. It implements linear movements only (straight lines). The SX code listens to an RS232 line for commands of the form [code]m <hex_x>, <hex_y>, <hex_z>[/code] and acts accordingly. While idle, the controller will scan a keyboard matrix, so that the motors can be manually controlled as well. While moving, three keys/switches (say 'start position detection', 'end position detection' and 'emergency stop') will be scanned continuously.

A more elaborate explanation is [url=http://tinyurl.com/37nl5u]here[/url]

Electronics-wise, with a lot of help, I have this working with three attached steppers. Only, I very much lack the mechanics skills to create an actual CNC miller out of this, so this project is currently 'paused'.

Please feel free to use this source-code any way you like.

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