What the thread found

• The locking screw on the Archer 2 camera stage clamp can work itself loose over time, allowing the camera to slide despite the lock being engaged.
• Tightening the locking screw may resolve the issue temporarily but does not permanently fix an undersized dovetail plate.
• Applying non-permanent threadlocker compound to the locking screw threads can prevent it from coming loose.
• Adding a thin shim into the dovetail clamp mechanism creates a firmer grip by taking up tolerance space between the plate and stage.
• A thin layer of tape applied to the bottom surface of the dovetail plate can serve as a quick fix for an undersized plate.
• Machining a flat section on the locking lever can create a positive engagement point with increased clamping force and an audible click when locked.
• Tiffen may supply thicker shims as a factory solution to address the undersized plate issue.

Depends on

• This problem was reported on Archer 2 units from at least 2011 onwards, suggesting it may be a design limitation rather than a manufacturing defect.
• The effectiveness of tape shims versus machined shims versus factory parts has not been directly compared in the discussion.
• The flat-milling solution for the lever requires professional machine work and is not reversible.

Parts

Dovetail Plate, Top Stage

Same gear or parts

1. 2026Eliminating vibration with the ARRI ALEXA 35 on Steadicam®: rigid mounting plate options to bypass the dovetail systemFacebookThe Steadicam Group
2. 2026Choosing between upgrading an older ProVid-2 kit or investing in a professional rig: workshop-first versus equipment-first approach for beginners.DisputedFacebookSteadicam operators group
3. 2026Reducing voltage drop in standard Steadicam® Zephyr cabling for high-power broadcast cameras.DisputedFacebookSteadicam operators group
4. 2026Tiffen Steadicam® Elite sled (2026): build quality, power distribution, and load capacity versus Steadicam® Axis.FacebookSteadicam operators group