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Main => Main Forum => Topic started by: EightBySix on March 31, 2013, 05:51:59 pm

Title: Help me, CNC people!
Post by: EightBySix on March 31, 2013, 05:51:59 pm
Just read through all of the CNC64 (http://forum.arcadecontrols.com/index.php/topic,113763.0.html) thread. Amazing  :cheers:

I wanted to ask, but didn't want to distract from the thread... Where do you look for threaded rods? I have a similar need for my coffee table cab project (http://forum.arcadecontrols.com/index.php/topic,96762.msg1267519.html#msg1267519), to open and close the table top. I got a threaded bar from my local DIY shed, but if I managed to find one with a larger pitch (?) then I could spin it more slowly and have less motor noise.

Does anyone know of any places with various lead screws? Uk preferably...
Title: Re: Help me, CNC people!
Post by: Nephasth on March 31, 2013, 09:01:05 pm
Home improvement stores. Commonly referred to as "all-thread". UK? Not sure.

Edit - Here's some nylon allthread in the UK: http://www.allthread.co.uk/allthread_nylon.html (http://www.allthread.co.uk/allthread_nylon.html)
And here's some steel allthread in the UK: http://www.shop4fasteners.co.uk/acatalog/Threaded_Bar_Steel_Studding_Rod_Allthread.asp (http://www.shop4fasteners.co.uk/acatalog/Threaded_Bar_Steel_Studding_Rod_Allthread.asp)
Title: Re: Help me, CNC people!
Post by: kahlid74 on April 01, 2013, 09:49:10 am
Threaded rods can get quite expensive depending on size and length.

Grainger has threaded rods here - http://www.grainger.com/Grainger/threaded-rods/bolts/fasteners/ecatalog/N-8k5 (http://www.grainger.com/Grainger/threaded-rods/bolts/fasteners/ecatalog/N-8k5)

McMaster Carr also has them - http://www.mcmaster.com/#threaded-studs/=m4r5hu (http://www.mcmaster.com/#threaded-studs/=m4r5hu)

Also don't forget that these are retailers.  If you search on Ebay you may find a steal for threaded rods but watch for shipping.  It's solid metal usually and a beast to ship.

Title: Re: Help me, CNC people!
Post by: RandyT on April 01, 2013, 12:44:30 pm
For lower-cost lead screw applications, you don't want just any threaded rod.  Acme threaded rod is most often used for this purpose.