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How to Make a Three Axis CNC Machine
(Cheaply and Easily)
byoomlout
http://www.instructables.com/id/How-to-Make-a-Three-Axis-CNC-Machine-Cheaply-
and-/?ALLSTEPS
The idea behind this Instructable was to fulfill my desire for a
desktop sized CNC machine. While it would have been nice to
purchase an off the shelf unit the issue of price as well as size
proved prohibitive. With this in mind I endeavored to design and
build a three axis CNC machine with the following factors in mind:
-Use Simple tools (needs only a drill press, band saw, and hand
tools)
-Low Cost (this kind of got away from me however with everything
bought off the shelf the cost for all parts is under $600 (significant
savings could be made by skillfully sourcing some pieces))
-Small footprint (30" x 25" footprint)
-Usable working envelope (10" X-axis, 14" Y-Axis, 4" Z-Axis)
-Relativly fast cut rate (60" per minute)
-Small part count (fewer than 30 unique parts)
-Easy to source parts (all parts available from 4 sources (Home
Depot + 3 online sources)
-Ability to cut ply-wood (Succesful)
Lets get started...
UPDATE:- Coming soon the ability to order pre-cut MDF pieces
fromoomlout
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Step 1: Others Who Have Finished
A salute to those who have laboured through to this point (and to
demonstrate that it is reproducable) Here are some pictures of
other peoples machines.
Photo 1- Chris and his friend put together this unit; laser cutting
the parts out of half inch acrylic. Not only does it look super it must
weigh a ton. But kudos, anyone who's worked with acrylic knows
laser cutting it is great but it is a very very unfriendly material to
drill and there is a lot of side drilling in this design. Good job guys,
check out more details (and photos including some testing with
circuit boards) on Chris's blograinbowlazer.com. I particularly like
his work with making 3-d objects out of 2d cuts(here).
Photo 2- Sam McCaskill has finished his desktop CNC machine
and it's looking really really nice. Super impressively he also
resisted the urge to cheat and cut all his pieces by hand. I'm really
impressed.
Photo 3- Angry Monk's - With MDF pieces cut on a laser cutter
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