Premium Members TJ Williams Jr. Posted May 5, 2013 Author Premium Members Report Share Posted May 5, 2013 If a wire's gauge is too small to power a specific device, it will heat up, which will increase resistance, which will decrease the voltage. If the gauge is way too small, it will heat up and up and up, get more and more resistant until a tipping point is reached and the device can no longer run. At this point, the demand for power disappears, the wire will cool down (if it hasn't been melted) and if you were to test the voltage with a multimeter, it will probably give a normal reading. This is deceptive, however, since a meter alone will not draw the same current as a camera. This is exactly what was baffling me. I would have the camera reading 9v on the alexa display, but then I would throw a volt meter on the cable and it would read out 14.4v. I guess it makes sense since the volt meter has basically no draw at all. Wow I think this might be it guys. Eric, Afton, Mark, Victor, and Alan thanks a ton for talking this through with me. I'll take in the rig to Terry and talk wiring. Maybe I can have him rewire the thing with all 14 gauge through out before my next film. You guys are heroes! Cheers! -TJ Quote Link to comment Share on other sites More sharing options...
Premium Members Mark Schlicher Posted May 6, 2013 Premium Members Report Share Posted May 6, 2013 Interesting. I've never had those particular symptoms. Perhaps I'll go stress-test my rig at a rental house when I get the chance. Quote Link to comment Share on other sites More sharing options...
Premium Members Tuomas Viitakoski Posted July 9, 2013 Premium Members Report Share Posted July 9, 2013 Hi TJ,Would like to hear what was the conclusion in your case?Was the post's AWG the answer?- Tuomas Quote Link to comment Share on other sites More sharing options...
Premium Members TJ Williams Jr. Posted July 10, 2013 Author Premium Members Report Share Posted July 10, 2013 Would like to hear what was the conclusion in your case? Was the post's AWG the answer? Sorry for the lack of response on this one... I've been on this movie and haven't had a chance to respond. The problem has been resolved and it was surprisingly simple. My rig is a bit of a franken rig and has some xcs, pro,and rig engineering parts. Since I use xcs posts I attached amp connectors to my bottom and top stage and had the rig wired up so I could swap my short and super post. Amp makes lots of pins for their connectors and I had installed the wrong ones! Greg was kind enough to take a look at the rig and suggest the proper pins. Now that I have the right pins in everything is working great! Lots of re-wiring but its gonna be great! Thanks everyone for the tips. I'm also upgrading all my wiring to 14 gauge to make sure there are no hot spots. Best wishes guys. Tj 1 Quote Link to comment Share on other sites More sharing options...
Premium Members Tuomas Viitakoski Posted July 10, 2013 Premium Members Report Share Posted July 10, 2013 Would like to hear what was the conclusion in your case? Was the post's AWG the answer? Sorry for the lack of response on this one... I've been on this movie and haven't had a chance to respond. The problem has been resolved and it was surprisingly simple. My rig is a bit of a franken rig and has some xcs, pro,and rig engineering parts. Since I use xcs posts I attached amp connectors to my bottom and top stage and had the rig wired up so I could swap my short and super post. Amp makes lots of pins for their connectors and I had installed the wrong ones! Greg was kind enough to take a look at the rig and suggest the proper pins. Now that I have the right pins in everything is working great! Lots of re-wiring but its gonna be great! Thanks everyone for the tips. I'm also upgrading all my wiring to 14 gauge to make sure there are no hot spots. Best wishes guys. Tj Great to hear that it worked out! :) -Tuomas Quote Link to comment Share on other sites More sharing options...
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