Boxfish Grabber Manuel utilisateur

Boxfish Grabber – Blueprint Lab

Grabber Manual.

Blueprint Lab Grabber for Boxfish ROV

Boxfish Grabber – Blueprint Lab

Table of Contents

1 About this document ........................................................................................................3

1.1 Specifications..................................................................................................................3

2 Grabber components........................................................................................................4

2.1 Grabber accessory and cable.................................................................................4

2.2 Grabber mount on ROV ...........................................................................................4

2.3 How grabber and mount will arrive after shipping..........................................4

2.4 Other items required for grabber accessory.....................................................4

3 How to mount the grabber accessory onto the ROV.............................................6

4 How to control the grabber using the Control Station..........................................8

5 After a dive...........................................................................................................................9

6 Appendix: How to use the ROV without a grabber............................................... 10

6.1 How to remove grabber cable ............................................................................. 10

6.2 How to reattach the grabber cable..................................................................... 11

Boxfish Grabber – Blueprint Lab

1 About this document

This document contains instructions for mounting the Blueprint Lab high-

strength grabber to your Boxfish ROV, and how to open/close the grabber arms

using buttons on the Control Station.

If you wish to dive with the ROV without the grabber, you must unplug the

grabber cable from the ROV. Instructions for removing the cable are also

included in this document.

Boxfish ROV with Blueprint Lab grabber

1.1 Specifications

The grabber is depth-rated to 300m.

Boxfish Grabber – Blueprint Lab

2 Grabber components

Grabber, cable and mounting components are shown below.

1. Grabber accessory. 2. Grabber cable. 3. Grabber mounting point on

underside of ROV. 4. Thumbscrews for holding grabber in place on mount.

2.1 Grabber accessory and cable

1. Grabber accessory has opening/closing arms on one end. On the other end,

note the four mounting lugs and central metal connector for attaching the

grabber cable.

2. Grabber cable for connecting the ROV to the grabber.

2.2 Grabber mount on ROV

3. Grabber mount on the ROV; located underneath the front dome. Picture

shows how it looks when the ROV is upside down.

4. 2x metal thumbscrews to hold the grabber attachment in place.

2.3 How grabber and mount will arrive after shipping

When you receive your ROV after shipping:

One end of the grabber cable will already be plugged into the penetrator

port marked ‘GRAB’ on the side of the ROV. The end that attaches to the

grabber will be covered by a red cap (IMPORTANT – note that this cap is

not watertight. If you wish to dive without the grabber attached you must

remove the entire cable from the ROV and insert a port plug in the GRAB

port)

The grabber and thumbscrews will be in the accessory box.

2.4 Other items required for grabber accessory

We also recommend the following items for your grabber:

Boxfish Grabber – Blueprint Lab

Silicone aerosol spray: For lubrication and water protection we recommend

obtaining some silicone spray to use before connecting the cable to the

metal connector, and again after disconnecting the grabber after a dive.

Silicone grease (supplied in your ROV accessory box): You will need this only

if you plan to use your ROV without the grabber attached. It is for

lubricating o-rings when removing/inserting penetrator plugs into the

‘GRAB’ cable port on the ROV. This port must remain watertight and the

silicone grease helps prolong the life of the o-rings in the plugs.

Boxfish Grabber – Blueprint Lab

3 How to mount the grabber accessory onto the ROV

Note: When installing the grabber, you will find it easier to turn the ROV upside

down or onto its side for better access to the mounting point.

1. Find the grabber cable. If you are facing

the upside-down ROV, one end will be

plugged into a port on your left. The port

is labelled ‘GRAB’.

2. Thread the other end of the grabber cable

through the two holes in the grabber

mount so that there is about 10cm of

cable sticking out.

3. Remove the red cap from the end of the

cable.

4. Get your silicone spray, and lightly apply

some to:

a. the end of the cable

b. the connector on the grabber.

5. Orient the grabber accessory so that the

mounting bar is at the bottom.

6. Align the cable (there is a flat part on it) to

the connector and connect the cable.

Take care when attaching the cable so as

not to damage the pins inside the

connector.

7. Screw in the black collar to the grabber

connector to hold the grabber cable in

place.

Boxfish Grabber – Blueprint Lab

8. Thread the excess cable back through the

hole in the mounting point. Insert the

mounting lugs through and down into the

metal mounting plate so they are held in

place.

9. At this point, the holes on the sides of the

mounting point on the ROV should be

aligned with the holes on the grabber

attachment.

10. Use the thumbscrews to hold the grabber

mounting plate to the mounting point on

the ROV. (Note that the ROV is still

upside-down in this picture).

Boxfish Grabber – Blueprint Lab

4 How to control the grabber using the Control Station

To use the grabber, power on the ROV and Control Station. You will use the five

areas on the Control Station shown below.

1. Sensor Power switch. Turn the Sensor Power switch (1) to the ON position

to send power to the grabber. Note: when testing the grabber out of the

water, minimise the time that the sensor switch is turned on, and turn it off

after use to avoid possible overheating of other equipment/sensors.

2. Grabber open control button. Press and hold the button to open the

grabber arms. While holding the button, the arms will move slowly apart until

the grabber is fully open. Release the button when you’d like the arms to

stop opening, or when the arms are fully open.

3. Grabber close control button. Press down and hold the button to start to

close the grabber arms. The arms will move slowly together until the grabber

is fully closed. Release the button to stop moving the arms towards the

closed position.

4. Grabber view. The grabber will be in view at point (4) on the screen showing

the wide-angle camera feed. Use this for guidance when positioning the

grabber and using the open/close controls.

5. Pitch/roll joystick*: Because the grabber does not sit flush with the bottom

of the ROV, you may need to pitch the ROV forward to pick up objects from

the bottom. Use the roll settings too if the object is at an angle.

* Note that this joystick is located in a different position (under the left joystick)

in newer ROVs.

Boxfish Grabber – Blueprint Lab

5 After a dive

While the grabber is attached, thoroughly rinse the ROV and grabber mounting

area with fresh water. Be sure to get behind the mechanism to direct water into

all the nooks and crannies, especially after use in salt water.

After disconnecting and drying the grabber, lightly use silicone spray on the

female end of the grabber cable AND the male pins on the grabber connector.

This will prevent water from sitting in the connections and possibly damaging

the connection points.

Replace the red cap onto the end of the grabber cable.

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