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DIY CNC & Constructing an affordable CNC kit

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I have always dreamed of having a CNC and window shopped all the time on the internet. Finally, I discovered Instructables and made my own to share with others. Ninety percent of my parts were acquired from junk or unused stuff. It doesn't look pretty but it works. The first CNC was posted on "I Made It" photo contest. I took that apart to improve on my first design and I hope it helps other people. This particular CNC I believe is the easiest and cheapest way people can do it themselves.



Domo*pes (Arduino Powered Stepper Motor Board.) Preliminary test Before pcb board house.



Domo*pes  (Arduino Powered Stepper Motor Board)


Video of CNC cutting wood and birds-eye view of pen plotter

Parts:
  • Laminated Particle Board or whatever smooth flat surface wood is easy for you to work with. I used an old bathroom cabinet.; @ hardware store
  • two feet of 1/2 inch PVC Pipe; $ @2 hardware store
  • four 1/2 inch PVC elbows; $4 @ hardware store
  • one foot of 1/4 inch PVC Pipe; $1 @ hardware store
  • six inches of 1/4 inch Copper Pipe; $ @ hardware store
  • two 1/4 inch x 20 threaded rod and three nuts to match; $10 @ hardware store
  • Copper Pipe Hangers; $2 @ hardware store
  • Gas Line Hose that snugly fits the threaded rod; $3/ft. @ auto parts store
  • handful of screws and nuts & bolts
  • 4 data staples: $1 @ hardware store
  • glue: Gorilla Glue, Super Glue
  • Craft Foam; $.50 @ Hobby Lobby
Tools:
  • Saw to cut wood
  • Pipe Cutter
  • Screwdriver
  • Level
  • Tape Measure & Ruler
  • Pencil & Sharpie
  • Drill & Bits
DIY-CNC-Software
 
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Step 2: Glue the bearings

Picture of Glue the bearings
100_3017.JPG
Use Gorilla Glue on the corner. Gorilla Glue expands 3x it's size so apply sparingly. Clamp down the PVC pipe and let dry overnight.
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CNCSnap (author)  dchall83 years ago
Thanks for the suggestions. It's a complex project . I figured I would break it up into different instructables-construction, hardware, and software. Since people may want to use different hardware and software than me. I'll update it so it will be more user friendly.

I am not a good photographer, never was and never will be.:))
seprice403 years ago
Has anyone tried and/or used this driver (http://cgi.ebay.com/CNC-TB6560-3-Axis-Stepper-Motor-Driver-Controller-Board-/250781815058?pt=LH_DefaultDomain_0&hash=item3a63c2d112#ht_2632wt_983) instead of the easydrivers?
louis.kli3 years ago
I will be making this project as soon as I get my hands on all the parts!
shivalwolf3 years ago
Very nice design looks easy to build to.

I have been wanting my own little CNC machine so i can quickly make up PCB's without the well printing part.
Would this CNC be accurate enough to make up PCB's?
CNCSnap (author)  shivalwolf3 years ago
Thanks for asking. I don't have PCB to test on so I used a blank CD. I noticed a small wobble on the Z axis. The steel tube I bought is not as good as the brass bearings from scanners. In my opinion, it's accurate enough for PCB. I pested a pic of the result.
ronanry3 years ago
Great instructable...however, do you have any software to run it ?
CNCSnap (author)  ronanry3 years ago

Thanks, here's a link to the software instructable.
Good Job!
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