Mostly Printed CNC 525 -Updated 5/25/16-
by Allted, published
5/25/16 - New Center and Z Axis assemblies, More rigid!, easier to square, universal tool mount.
4/24/16 - New Corner assembly, easier to square, shorter print time, more rigid.
Mostly Printed CNC / MultiTool
These parts are for 23.5mm OD conduit.
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Nice write up, explains this in more detail Here
I set out to build a minimal cost CNC Machine with the goal of some basic aluminum capabilities and easily multi function.
Hardware and printed parts available here.
The only special tools needed are a hacksaw, and a drill to drill 4 holes.
This can be easily expanded to almost any length, width, and depth depending on rigidity required. Shorter lengths = more rigid. This is built using hardware store 3/4" (23.5mm OD) emt conduit. international version using 25mm OD is linked below.
Most woods and plastics should be no problem. I milled Aluminum with a footprint of 23.5in x 32in x 4in. Aluminum works well https://www.youtube.com/watch?v=GIYMuYgX0rY
You can switch the spindle out with a drag knife, laser, Extruder, ect, making it a great prototyping multitool. By adding length and depth It could easily be used to shape large easily milled things like wood, foam, or plastics. Keep it small for aluminum.
International Edition -25mm conduit-
Solder-less Stepper Mount (recommended if you aren't using the wiring harness)
End Stop Mount
MK8 MK9 extruder mount 3D printer
Nema 23 mount
Blank Tool Mounts
Laser (Leo69) Mount
Rafts: Doesn't Matter
Infill: See http://www.vicious1.com/blog/parts/
4 Head Madness! Just to show the platforms capabilities.
X and Y axis take up about 265mm, so whatever cut area you want your outside dimensions should be that plus 265mm.
I am using marlin / Ramps 1.4, there are a lot of options if you don't like this combo, grbl, tiny g, ect.
The X and Y steppers are wired in parallel, just like the z axis is on a 3d printer. Or in series.
Pre-configured firmware here- http://www.vicious1.com/marlin-firmware/
Bill Of Materials
Current List - http://www.vicious1.com/blog/parts/
Fusion 360 for the intermediate users with some experience.
I am very open to suggestions for others.
http://stores.ebay.com/carbideplus/ - drillman1's shop is the only place to get your endmills and things. Great prices, fast, easy.