Cheap CNC Router small version
by nic6911, published
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Hi. For this particular CNC I used a cheap chinese board with parallel port from ebay. It was about 50$ with integrated drivers. But I would recommend to use a better controller.
For my next CNC I have made a DIY board (http://www.planet-cnc.com/inde.... This is a breakoutboard with USB support. It will also require a driver for each stepper.
For another low cost CNC I have used a GRBL type of controller. This is just an arduino uno with a shield on top. On the shield there are a couple of drivers to run the steppers. The arduino is a cheap solution and also gives USB support instead of the outdated parallel port.
So for a low cost machine like this I would recommend an arduino with shield keeping the cost of the machine down. (http://blog.protoneer.co.nz/ar...
I used a small PCB milling bit found on ebay for the cut on the video. For this size machine I would recommend a dremel size spindle, like the one I use. A bigger spindle = heavier gantry which is not preferable. But I have not tried with a bigger spindle, simply because it wasn't necessary for the materials this machine was built to mill...
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42 608zz bearings
12 1Â½" U-bolts (see picture)
1Â½m M8 threaded rod
Software used for running the machine:
CAM program used:
Videos of the machine in action:
The BOM, pictures and instructions is a work in progress!
The machine was designed and made for about two years ago, and I did not make a BOM back then.
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