Methods for achieving dynamic balance on Steadicam rigs

Gear

ZephyrCan I fly my Alexa or RED on a Zephyr?389

Master SeriesIs a used Master Series rig worth buying as a first big rig?191

BFDHow do I power my BFD receiver from my camera or sled?186

VoltCan I retrofit a Volt onto my existing sled or gimbal?168

ArtemisHow do I power my camera and accessories from an Artemis sled?166

MDRWhere can I mount my Preston MDR on my rig?143

ModulusIs there a Modulus option for HD wireless video?141

G-70Will my G-70 fit my vest, gimbal or sled?126

FI+ZCan I control iris and zoom wirelessly, not just focus?60

HU3Where can I get my HU3 repaired, refurbished or repainted?60

CineLiveHow do I pack and case my CineLive rig for transport?54

G-70XHow does the G-70X compare to Pro Titan, Xarm and other arms?46

Trinity 2Is Trinity 2 SUP 3.0 firmware safe to install or buggy?46

Ultra VestWhich vest should I choose for my body size, comfort and operator type?39

2006Operating forum

20 years old. Gear and prices may have changed since.

DisputedParticipants disagreed and reached no conclusion. Read the findings as positions, not as an answer.

One approach involves starting with the camera's center of gravity positioned directly over the centerpost, roughly balancing with the battery, then incrementally moving the battery inward while repositioning the camera backward until the rig spins flat.
An alternative method requires achieving static balance first, then tilting the rig 90 degrees and panning it horizontally to perform a drop test, adjusting battery or monitor position based on which direction the rig rolls until it drops flat.
When working with wired rigs using triax cables and zoom remotes, balance the rig dynamically without the cables attached first, then connect the necessary cables afterward and make fine adjustments to maintain balance as closely as possible.
Components that appear visually centered may not actually have their center of gravity in their physical center, which can cause lateral or precessing motion during spinning rather than flat drops.
Changing monitor height affects dynamic balance performance even when the rig appears properly aligned and square.
Poor quality, damaged, or loose components in the gimbal system can result in precessing spin behavior despite apparent proper balance and alignment.
Operator technique during the spin test significantly affects results, as uneven rotational force applied to the centerpost can produce false readings.

The incrementally-adjusted method may require different step sizes depending on the specific rig configuration and components used.
The drop-test panning method does not account for all variables affecting dynamic balance and may only achieve static side-to-side balance.
Changing the centerpost diameter affects where the camera's center of gravity actually sits relative to the gimbal's center.
These methods cannot be universally applied to all rig configurations without consideration of individual setup differences.
Working with triax cables and tally lights adds weight that cannot be accounted for during wireless balance testing.