Difference between revisions of "CNC Router"
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| + | {{Project|Creator=Nykodemus | ||
| + | |Status=<onlyinclude> Your Status </onlyinclude> <!--LEAVE ONLYINCLUDES FOR STATUS HACK--> | ||
| + | |Born On=00:34, 24 June 2010 (CDT) <!--DO NOT EDIT --> | ||
| + | |Last Updated={{#time: H:i, d F Y| {{REVISIONTIMESTAMP}} }} (CDT) <!--DO NOT EDIT --> | ||
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| + | ==Overview== | ||
Ye Olde Shoppe NEEDS a CNC router. | Ye Olde Shoppe NEEDS a CNC router. | ||
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[http://fab.cba.mit.edu/classes/MIT/863.09/people/dcarr/final/final.html MIT student's 3-axis CNC milling machine that costs less than $100] | [http://fab.cba.mit.edu/classes/MIT/863.09/people/dcarr/final/final.html MIT student's 3-axis CNC milling machine that costs less than $100] | ||
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| + | [[Category:Open manufacturing]] <!--MAKE AS MANY CATEGORIES AS YOU NEED--> | ||
Revision as of 00:34, 24 June 2010
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Creator: |
Overview
Ye Olde Shoppe NEEDS a CNC router.
I have only just begun this project, and I could certainly use help.
We already have two decent-sized steppers rated at 1.8deg per step (both unipolar). The z-axis doesn't need to be so beefy or precise, I think, but if you happen to come across a nice 1.8deg/step unipolar (5 or 6-wire) stepper, by all means commandeer it!
Instructables has a simple circuit for the controllers here I think we have the zener diodes and mosfets required for this circuit.
This guy here is just using a single uln2003 chip to drive each motor. I don't know how good that is for the motor or for the chip, but it seems to work. Also, there is no isolation.
TODO:
- build the driver circuit
- buy either uln2003 chips or cd4516 and cd4028 chips
- buy some opto-isolators? (optional?)
- build the housing (I like the idea of moving the piece on one axis, and the router on the other axis ala the MIT design below) (MDF? Acrylic?)
- buy some precision threaded rods
Some example CNC machines on the cheap:
Instructables: Easy-to-Build-Desk-Top-3-Axis-CNC-Milling-Machine
MIT student's 3-axis CNC milling machine that costs less than $100
