Homemade CNC
Homemade CNC
(OP)
So I am designing a simple CNC Mill/Router just for an easy side project. I have it modeled but I am wondering what would be an acceptable THREADED rod to use to drive my axis. I realize that the BEST solution would be a BALL SCREW but those are super expensive. Right now I am thinking 3/8 - 16.
Any input would be appreciated!!
Thanks,
Any input would be appreciated!!
Thanks,





RE: Homemade CNC
John R. Baker, P.E.
Product 'Evangelist'
Product Engineering Software
Siemens PLM Software Inc.
Industry Sector
Cypress, CA
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UG/NX Museum: http://www.plmworld.org/p/cm/ld/fid=209
To an Engineer, the glass is twice as big as it needs to be.
RE: Homemade CNC
Loads of info in the 'net.
RE: Homemade CNC
A screw thread ("V" or Whitworth etc...) has a tendency to bind, whereas the ACME thread promotes sliding even under load.
Adriaan.
I am a Mechatronics Engineer from South Africa.
www.martin-electronics.co.za
RE: Homemade CNC
RE: Homemade CNC
Dik
RE: Homemade CNC
Anti backlash nuts are made specifically for these applications (low cost/precision lead screws) and essentially function like two nuts with a spring between them. Not as good as a ballscrew still, but effective. Available here from Nordex http://www.antibacklashnut.com/
Comprehension is not understanding. Understanding is not wisdom. And it is wisdom that gives us the ability to apply what we know, to our real world situations
RE: Homemade CNC
A timing belt may very well be capable of the accuracy necessary, at much lower cost.
RE: Homemade CNC
RE: Homemade CNC
RE: Homemade CNC
RE: Homemade CNC
http://www.cnczone.com/
RE: Homemade CNC
RE: Homemade CNC
A machinist?
I mean the OP never claimed CAD/CAM or similar terms.
What is Engineering anyway: FAQ1088-1484: In layman terms, what is "engineering"?
RE: Homemade CNC
RE: Homemade CNC
I have used some components from them before. Seems ideal for a home project as you describe.
I would also love to have my own personal CNC Milling machine. Here is one on the American market http://www.taigtools.com/cmill.html
For sure, I will get or build one some day
Fe (IronX32)
RE: Homemade CNC
All that said, the main thing is to just get it working. After that you can use each new iteration of your machine to fabricate ever-more accurate components for the next!
Have fun...there's nothing like the first time you cut a part on your very own CNC!
Take care,
Tom