On 21.01.13 04:21, Mike Cinquino wrote: > The drive and arduino are in the same electrical box right now. I > am thinking of removing the drive and placing it in it's own box.
Yup, given that the drive is proving noisy: a) A separate metal enclosure for any electronics, including the arduino. (Steel if there's a strong magnetic component in the interference, else aluminium will do.) b) A mains noise filter on the input of the 12v SMPS powering the arduino. (They're little metal boxes with a couple of inductors & capacitors, available from electronics suppliers, or a hoarder's junkbox.) c) Shielded cables for everything running in and out of the electronics enclosure, to avoid conducting or radiating picked up interference. d) More power supply bypass capacitors on the +5v, and on the +12v, can add some extra noise suppression, for safety, but the interference should be eliminated at source or at least be denied entry to the electronics. If that doesn't do it, then it's time to get serious, and opto-isolate anything coming from the LinuxCNC box, so there is no common earth with the drive. > I have checked all my grounds and they seem ok. Has anyone seen this > before? Yep, it comes up now and then on the list, so there's some good advice in the archive, if you can find it. There's sure to be more good ideas on this thread before long. Erik -- A good scare is worth more than good advice. (Proverb) ------------------------------------------------------------------------------ Master Visual Studio, SharePoint, SQL, ASP.NET, C# 2012, HTML5, CSS, MVC, Windows 8 Apps, JavaScript and much more. Keep your skills current with LearnDevNow - 3,200 step-by-step video tutorials by Microsoft MVPs and experts. SALE $99.99 this month only -- learn more at: http://p.sf.net/sfu/learnmore_122412 _______________________________________________ Emc-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/emc-users
