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Project Help and Ideas » CNC Milling Machine
May 24, 2009 by Ethanal |
In the projects page, I noticed you have a CNC milling machine being controlled by a Nerdkit. How did you convert the 3D model into code recognizable by the Nerdkit? Also, how do you control stepper motors with the Nerdkit? Wouldn't it blow out the chip? |
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July 27, 2009 by BoloBit64 |
CNC Robotics: Build Your Own Workshop Bot by Geoff Williams. This is a book that is sold on amazon.com that will show you how a cnc machine is set up and how it works. I'm sure they would show the source code for the program, and all the other stuff dealing with CNC Robotics. |
July 29, 2009 by mrobbins (NerdKits Staff) |
I'm still not 100% done with that project. For the 3D model, it was really a 2.5D model, as the Z head only needed to be up or down. I wrote a Python script that took a image file of single-pixel-wide white lines on black as its input, and outputted a list of (X,Y,Z) coordinates to trace around the segments. The coordinates were transmitted over the serial port to the microcontroller. The stepper motors were controlled with a single power MOSFET on each of the 4 phases of the motor, very much like the Motors and Microcontrollers 101 video times four. (There were 12 power MOSFETs in all for three motors.) I am hoping to spend some more time on that project in the next few months and get it to a working state for a video/etc! Mike |
August 14, 2009 by Ethanal |
Thanks. |
October 20, 2010 by Icyhot |
How is this video coming along? I thought there would be more details about the unlinked projects in the members section, but unfortunately I just came across this post and it appears the projects page is more of a projects in progress page as well. I also wouldn't mind more detail on how you went about the ignition coil driver. I just got my kit today and obviously haven't learned much yet, but I was looking to create this circuit to put EFI on a lawn mower engine. Doesn't seem like a complicated circuit I just have much to learn, but never mind jumping in a ship instead of a dinghy. |
February 14, 2012 by TheUnfocusedOne |
Is there any updates on this project? I'm really interested in trying this. |
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