Desktop Milling
I’ve reconstructed this page at the INSTRUCTABLES site.
It gets more exposure there and you can see all the responses from readers but there is some valuable information in this blog too.
http://www.instructables.com/id/Easy-to-Build-Desk-Top-3-Axis-CNC-Milling-Machine/
What I propose to describe here is a way to make a computer controlled milling machine. The idea behind it is to put the power of a computer controlled milling machine into the hands of the common man.
Click here for a movie.
Small enough to set on the desk but scalable to any size.
As inexpensive as possible without sacraficing accuracy (too much).
Available meaning all most all the parts can be purchased in local retail stores.
And above all CHEAP. I mean you can be up and running for well under $200.
And with it you can do 2D routing and engraving and 3D CNC milling and modeling in Foam, Wood, Plastic and other such materials.
The basic components of the system are as follows:
Since we’re going to use free or low cost software we basically have to start with that.
Then build an electronic interface for the computer to run the machine.
The fundamental structure of the machine is a platform with a sturdy post to hold the Z axis (the up and down part).
Then we construct the X and Y movement platform or what we call the stage.
Then we add the motor tool to the Zaxis.
And finally connect everything and test it out.
The first step I think is to get the computer interface working with the stepper mtors here.
Tom