Shawn Adams Posted November 3, 2017 Report Share Posted November 3, 2017 Just curious on the G70x arm. I have a few arms including a ProVid arm.. What I'm wondering about the G70x is this.. Does it only have 1 spring and no pullies? Or are there any bullies and cables going to another spring? I guess. I'm mainly curious on what the "ride" adjustment is actually doing physically to the arm. I know the lift moves the spring mounting spot up and down to tension the spring, but what is actually happening when the ride is adjusted? PS. I've never used a G70x arm so I have not been able to use them in person, but I'm interested in one and just want to know more first.. Thanks Quote Link to comment Share on other sites More sharing options...
Premium Members Jerry Holway Posted November 4, 2017 Premium Members Report Share Posted November 4, 2017 From the Tiffen website: The G-70x is the third release of Tiffen’s G-Series arms. The revolutionary, patented Geo spring geometry optimizes performance throughout its lifting range. It tames high/low arm travel with adjustable-length crankshafts that dynamically rock the spring termination as the arm is boomed up or down. Powered by coaxial titanium spring sets, the G-70x arm smoothly carries any load from 13 to 70 pounds (5.8 to 32 kg). The all new bearing performance enhancements on the G-70x arm makes even the slowest camera moves ultra smooth. Quote Link to comment Share on other sites More sharing options...
Shawn Adams Posted November 5, 2017 Author Report Share Posted November 5, 2017 From the Tiffen website: The G-70x is the third release of Tiffen’s G-Series arms. The revolutionary, patented Geo spring geometry optimizes performance throughout its lifting range. It tames high/low arm travel with adjustable-length crankshafts that dynamically rock the spring termination as the arm is boomed up or down. Powered by coaxial titanium spring sets, the G-70x arm smoothly carries any load from 13 to 70 pounds (5.8 to 32 kg). The all new bearing performance enhancements on the G-70x arm makes even the slowest camera moves ultra smooth. Thanks Jerry.. I'm sure it's an awesome arm and I hope to get one soon. I was more interested in the physical mechanics of what the ride adjustment is doing inside the arm. Is the knob moving a pulley to the secondary spring (Which appears to be inside the primary spring)..? Quote Link to comment Share on other sites More sharing options...
Premium Members Jerry Holway Posted November 6, 2017 Premium Members Report Share Posted November 6, 2017 No, knob adjusts length of a crankshaft, which moves spring termination point as arm is boomed up and down. Smooths response and alters iso-elastic characteristics. Quote Link to comment Share on other sites More sharing options...
Shawn Adams Posted November 6, 2017 Author Report Share Posted November 6, 2017 No, knob adjusts length of a crankshaft, which moves spring termination point as arm is boomed up and down. Smooths response and alters iso-elastic characteristics. Cool. Thank You!! Quote Link to comment Share on other sites More sharing options...
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