Premium Members Christian Ramirez-Coll Posted March 31, 2018 Premium Members Report Share Posted March 31, 2018 Hello everyone, I just want to compile a list of arm post sizes. Please add or correct me when I am wrong: Master Series, Ultra, Shadow, M1: .725 (3/4") 3A, PRO ARM (Titan & Atlas?): .625 (5/8") Flyer, Pilot, Archer, ProVid: .500 (1/2") Thanks. 1 Quote Link to comment Share on other sites More sharing options...
Premium Members Tom Wills Posted March 31, 2018 Premium Members Report Share Posted March 31, 2018 A couple of quick corrections/notes: Tiffen "Large" size is actually a shade under 3/4", at around .740" And all of these sizes are nominal - a 5/8" (.625") shaft will likely not fit well, if it fits at all, into a PRO gimbal, because there does need to be some tolerance for the arm post to fit easily into the gimbal handle. I believe the Tiffen sizes tend to be on-size (or a thousandth or two smaller) for the arm posts, and have the few thousandths of tolerance in the gimbal handle, but all of my PRO arm posts are undersized (about .623" from PRO, down to about .621" for some others I've collected). Hope that helps! 1 Quote Link to comment Share on other sites More sharing options...
Premium Members Christian Ramirez-Coll Posted April 2, 2018 Author Premium Members Report Share Posted April 2, 2018 Thank you Tom it does? Quote Link to comment Share on other sites More sharing options...
Premium Members Jerry Holway Posted April 5, 2018 Premium Members Report Share Posted April 5, 2018 Arm post for Archer, Pilot, etc. is about .495 -.493 1 Quote Link to comment Share on other sites More sharing options...
Premium Members Christian Ramirez-Coll Posted April 5, 2018 Author Premium Members Report Share Posted April 5, 2018 Thanks, Jerry, Corrected list: Master Series, Ultra, Shadow, M1: .740 (a shade under 3/4) ??? 3A, PRO ARM (Titan & Atlas?): .621, .623 (a shade under 5/8) Flyer, Pilot, Archer, ProVid: .495, .493 (a shade under 1/2) These leave room for "some tolerance for the arm post to fit easily into the gimbal handle" (Tom Wills) I feel the first number may still be wrong. Should it be lower than .740? Thanks. 1 Quote Link to comment Share on other sites More sharing options...
Premium Members Jerry Holway Posted April 5, 2018 Premium Members Report Share Posted April 5, 2018 Tom is correct. .740. Quote Link to comment Share on other sites More sharing options...
Premium Members Hugo Longtin Posted July 22, 2018 Premium Members Report Share Posted July 22, 2018 Hi, I have a specific question. Will a G50 arm fit a Pro sled? thanks Quote Link to comment Share on other sites More sharing options...
Premium Members Jerry Holway Posted July 22, 2018 Premium Members Report Share Posted July 22, 2018 With the right arm post, of course. Quote Link to comment Share on other sites More sharing options...
Premium Members Hugo Longtin Posted July 23, 2018 Premium Members Report Share Posted July 23, 2018 Thanks Jerry Quote Link to comment Share on other sites More sharing options...
steadiz Posted October 2, 2018 Report Share Posted October 2, 2018 WTB: Arm Post- Pro Arm to Flyer LE Quote Link to comment Share on other sites More sharing options...
Rob Turner Posted December 2, 2019 Report Share Posted December 2, 2019 Hey guys, does anyone know the size of the Grub screw that goes in a G50 arm post? Many thanks, Rob Turner Quote Link to comment Share on other sites More sharing options...
Andrea Falcucci Posted June 4, 2020 Report Share Posted June 4, 2020 On 3/31/2018 at 6:04 PM, Christian Ramirez-Coll said: 3A, PRO ARM (Titan & Atlas?), Arm X1: .625 (5/8") In case other user will search for this info, also Arm X1 has 0.625 (5/8") arm post. Quote Link to comment Share on other sites More sharing options...
Premium Members shad wyckoff Posted January 17, 2021 Premium Members Report Share Posted January 17, 2021 I recently bought a Volt gimbal for my Pro sled. I also fly a pro arm and am looking for anyone who makes arm post that can be put into a pro arm and also fit into the Steadicam Volt. Called Robert Luna but he was out. Any other leads Quote Link to comment Share on other sites More sharing options...
Premium Members Lawrence Karman Posted January 17, 2021 Premium Members Report Share Posted January 17, 2021 3 hours ago, shad wyckoff said: I recently bought a Volt gimbal for my Pro sled. I also fly a pro arm and am looking for anyone who makes arm post that can be put into a pro arm and also fit into the Steadicam Volt. Called Robert Luna but he was out. Any other leads Tiffen includes a handle that will accept PRO sized posts (5/8") with a Volt. Did you not specify that when you bought it? 2 Quote Link to comment Share on other sites More sharing options...
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