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Mostly Printed CNC
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Mostly Printed CNC / MultiTool
Nice write up, explains this in more detail http://www.3ders.org/articles/20150728-ryan-zellars-shares-designs-for-impressive-mostly-3d-printed-...
I set out to build a minimal cost CNC Machine with the goal of some basic aluminum capabilities. Not a speed demon but it gets the job done. I am very happy with its capabilities.
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.
Most woods and plastics should be no problem. I test milled Aluminum with a footprint of 23.5in x 32in x 4in. Aluminum works well, I have a lot to learn but did a test cut of 6061 with a 1/8" 2 flute endmill at 15k RPM, .005" step down, 15in/min feed rate. These feeds and speeds seemed conservative.
Materials and methods
Bill Of Materials
-qty - type
4 - Corner Block
4 - Corner Block Lock
4 - Roller F
4 - roller lock
4 - Roller Motor Mount
1 - z motor mount
1 - z nut lock
2 - Middle Joiner
4 - Middle Z
2 - Middle End
2 - Tool Holder 13mm
2 - Tool Holder Nut Trap
1 - Rigid Coupler 5_16 to 5mm
5 - nema 17
4 - GT2 16tooth make sure it has 2 set screws
53 - 608 bearings Z, ZZ, or 2-RS
12ft - Conduit 3/4" (23.5mm OD, or 25mm OD for the IE version)
1 - 5/16 all thread length depends on desired z-axis
1 - spring -For a basic anti backlash getup
4 - BOLT 5/16" x3"
8 - BOLT 5/16" x 2.5"
2 - BOLT 5/16" x 1.75"
2 - BOLT 5/16" x 1.5"
28 - BOLT 5/16 x 1.25"
8 - 5/16" fender washers
8 - 5/16" speed washer, skateboard kind or sae washer
44 - lock nut 5/16"
1 - 5/16" nut
1 - 5/16"x.75" coupler nut
34 - SCREWS 6/32" x .75"
2 - SCREW 6/32" x .5"
36 - LOCK NUT 6/32"
20 - Nema Screws M3x10mm
1 - Ramps 1.4 set -loving the 8825 drivers
1 - power supply at least 12v 5A or 24v
1 - gt2 Belt length depends on size
1 - stranded 4 Wire, CAT5/6 works
1 - Rotary tool (Dewalt dw660, foredom, ect)
20 - Zipties
Current List - http://www.vicious1.com/blog/parts/
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