User Manual

2120
Figure 45
If the XR-SERIES leans to the right, then you will have to loosen
up the BLACK THUMB SCREWS on the bottom of the BOTTOM
PLATE and gently slide the MID PLATE over to the left a bit. If the
XR-SERIES leans to the left, then move the MID PLATE to the right.
Always secure and rmly tighten the BLACK THUMB SCREWS after
any adjustment.
After adjusting the side to side balance as mentioned above you
might have to go back and readjust the front to back balance to
obtain a ne balance of the whole system. You can use your eyes to
judge for correct horizontal balance, or you can use a bubble level
to ensure that the XR-SERIES has correct horizontal balance. The
Horizontal Balance of the XR-SERIES becomes less sensitive, as
the XR-SERIES becomes increasingly bottom heavy and conversely,
the horizontal balance becomes very sensitive, as the XR-SERIES
progresses towards correct vertical balance.
Also, another way of ne tuning the horizontal balance is to move
the COUNTER WEIGHT DISKS back and forth, or side to side on
the BASE PLATFORM. There are slots on the BASE PLATFORM to
help with this task. Also, replacing the WEIGHT DISKS away from
the CENTER POST on the BASE PLATFORM will increase panning
stability. Make sure to tighten the WEIGHTS down after you move
them.
NOTE: The Horizontal Balance of the XR-SERIES becomes less
sensitive as the XR-SERIES becomes increasingly bottom heavy,
and conversely, the horizontal balance becomes very sensitive, as
the XR-SERIES progresses towards correct vertical balance (see
next section).
Figure 46
Figure 47
NOTE: LATER, AFTER YOU ADJUST THE VERTICAL
BALANCE OF THE XR-SERIES, YOU WILL HAVE TO GO
BACK AND READJUST THE HORIZONTAL BALANCE AGAIN
IN ORDER TO OBTAIN A FINE BALANCE OF THE WHOLE
SYSTEM.
BALANCING THE VERTICAL AXIS
Now that your XR-SERIES is horizontally balanced,
it’s vertical axis can now be tested and properly
balanced. The objective in obtaining correct vertical
balance of the XR-SERIES is to allow the camera
and XR-SERIES to remain level during operation,
given you are not applying either a pan, tilt, or roll
type of hand pressure to the XR-SERIES, and most
importantly that the XR-SERIES’s CENTRAL POST
remains vertical even if you are walking, running,
or turning while the XR-SERIES is in operation. In
other words, if the XR-SERIES is vertically balanced
correctly, then the camera will remain level, and the
CENTRAL POST will remain vertical unless you
intentionally position the XR-SERIES otherwise. If
the XR-SERIES is not vertically balanced properly,
then it will swing about and pendulum when you
walk, run or turn.
If the vertical balance is set correctly you will be
able to move about quickly, as well as start or stop
moving suddenly, and still have the central support
post remain vertical. The best way to adjust the
XR-SERIES’s vertical balance is to telescope the
BASE PLATFORM in or out. Another way to adjust
the XR-SERIES vertical balance is to either add, or
subtract COUNTER WEIGHT DISCS from the BASE
PLATFORM.
Figure 48
Figure 48 shows the Glidecam XR-SERIES
swinging between horizontal and vertical during
the “Sled Arc Test”. (see next page)