Arri Hi5-Alexa lf-cforce mini-cforce RF keeps calibrating by itself

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Quiet_overlord
Posts: 3
Joined: Wed Nov 30, 2022 6:17 pm

Hello I'm a Belgian puller filming in Iceland and over the course of the shoot the motors decide to recalibrate by themselves.
The setup is lbus to l-cube lbus to cforcemini lbus to cforce RF on client.
ARRI-ECS-Service-Team
Posts: 11
Joined: Mon Jan 30, 2023 12:36 pm

Hi,
unfortunately there is a software bug in the CUB-1 that can result in this behavior.
To prevent this from happening I always advice to put the CUB-1 on the end of your LBUS daisy chain. Not in between motors or between Camera and motors.
For example:
Camera LBUS mount -> LBUS cable -> cforce motor (F) -> cforce motor (I) -> CUB-1 -> UDM-1 / Cinetape/ Cine RT

If you still experience issues, try updating all devices to the latest SUPs:
https://www.arri.com/en/technical-servi ... e-packages

all the best,
Daniel
Quiet_overlord
Posts: 3
Joined: Wed Nov 30, 2022 6:17 pm

ARRI-ECS-Service-Team wrote: Mon Jan 30, 2023 1:07 pm Hi,
unfortunately there is a software bug in the CUB-1 that can result in this behavior.
To prevent this from happening I always advice to put the CUB-1 on the end of your LBUS daisy chain. Not in between motors or between Camera and motors.
For example:
Camera LBUS mount -> LBUS cable -> cforce motor (F) -> cforce motor (I) -> CUB-1 -> UDM-1 / Cinetape/ Cine RT

If you still experience issues, try updating all devices to the latest SUPs:
https://www.arri.com/en/technical-servi ... e-packages

all the best,
Daniel
Will give this a try and report back!
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