Mostly Printed CNC 525 MPCNC "C-23.5mm OD"
by Allted, published
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5/9/17 - New XYZ Part to allow for T8 Leadscrew driven Z axis.
7/13/16 - New Roller Assemblies. No more motor mount flex, less hardware needed. More, mostly printed! New size added.
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.
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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 swap out the functionality.
Hardware and printed parts available here.
The only special tools needed are a hacksaw, and a drill to for 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 emt conduit (In the US it is sold as 3/4" (ID)), or as an upgrade you can use stainless steel tubing.
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 multi-tool. 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.
End Stop Mount
MK8 MK9 extruder mount 3D printer
Blank Tool Mounts
Laser (Leo69) Mount
If what you are looking for isn't here search "MPCNC 525"
4 Head Madness! Just to show the platforms capabilities.
X and Y axis take up about 264mm, so whatever cut area you want your outside dimensions should be that plus 264mm.
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.
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