Jump to content



Photo

Arm Post Sizes

Arm Posts Sizes PRO Tiffen Mater Series ProVid M1

  • Please log in to reply
5 replies to this topic

#1 Christian Ramirez-Coll

Christian Ramirez-Coll

    New Member

  • Sustaining Members
  • 9 posts
  • Atlanta

Posted 31 March 2018 - 11:04 AM

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.


  • 0

#2 Tom Wills

Tom Wills

    Advanced Member

  • Sustaining Members
  • 387 posts
  • Philadelphia, PA

Posted 31 March 2018 - 05:43 PM

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

#3 Christian Ramirez-Coll

Christian Ramirez-Coll

    New Member

  • Sustaining Members
  • 9 posts
  • Atlanta

Posted 01 April 2018 - 08:30 PM

Thank you Tom it does?


  • 0

#4 Jerry Holway

Jerry Holway

    Advanced Member

  • Sustaining Members
  • 743 posts
  • Philadelphia

Posted 05 April 2018 - 10:01 AM

Arm post for Archer, Pilot, etc. is about .495 -.493


  • 0

#5 Christian Ramirez-Coll

Christian Ramirez-Coll

    New Member

  • Sustaining Members
  • 9 posts
  • Atlanta

Posted 05 April 2018 - 01:25 PM

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.


  • 0

#6 Jerry Holway

Jerry Holway

    Advanced Member

  • Sustaining Members
  • 743 posts
  • Philadelphia

Posted 05 April 2018 - 01:58 PM

Tom is correct. .740.


  • 0





Also tagged with one or more of these keywords: Arm, Posts, Sizes, PRO, Tiffen, Mater Series, ProVid, M1

Paralinx LLC

BOXX

Betz Tools for Stabilizers

Teradek

Varizoom Follow Focus

rebotnix Technologies

PLC Electronics Solutions

GPI Pro Systems

Engineered Cinema Solutions

Media Blackout - Custom Cables and AKS

Boland Communications

Ritter Battery

PLC - Bartech

Omnishot Systems

Wireless Video Systems