KISS the Dolphin

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Building the new case.

The front of the case from above. You can see the three holes for the counter lung to loop fittings and the O.P. relief valve. You can also see the curved flat bar that was added to give an extra 40mm to allow for the dose head when the inhalation lung is fully inflated. (I have corrected the cad drawing.)

The front of the case from below. You can see that the bolts go through the case and the curved flat bar with washers and nuts on each side to help support the bolt under load. You can also see the tank bands (S.S. hose clamps) are through the side of the case. I did have made two C channels 250mm long by 190mm wide that was bolted to the side of the case to hold the tanks firmly. In an effort to reduce weight and stream line (make it narrower) I had slots plasma cut into the side for the bands. It is now 75mm narrower over all and ~1.5kg lighter.

The back of the case from above. You can see the slots in the back of the case for the velcro band to hold the canister firm. You can also see that the hose clamp screws are positioned at the rear, away from everything, but yet easy to get at and do up.

The back of the case from below. You can see the foot and support legs. The foot is to aid in standing the unit up when getting in and out of the unit. The foot also helps protect the tank valves and regs from being bashed about. The Black material is HDPE (High Density Poly Ethelene, cutting board material), the legs are 8mm S.S. threaded rod, covered with clear plastic tubing, which has nuts and washes either side of the case and the black plastic.

The case from below with both lungs installed.

The case from below with both lungs and scrubber installed. Note that the scrubber is lop side slightly, this is due to the addition of a replacement scrubber exhalation port replacement, discussed later. Also note the neoprene band around the scrubber, this is a temporary one until I buy some new 1mm neoprene to create a glove for the scrubber. The scrubber glove will be to help keep the scrubber insulated and to give it some protection in the metal case.

The case from below with both lungs, scrubber and loop installed. You can see the Oxy2 O2 sensor unit and the Tecme.de extension tube.

The case from below with both lungs, scrubber, loop, tank, reg and dosage head installed. You can see that the tank will be pointed down, it is very easy to operate the valve and the foot keeps it protected. You can also see that I have spiral wrapped the hoses to protect them as they enter the metal case.

The case from below with both lungs, scrubber, loop, tank, reg, wing and back plate installed. The wing is an old single skin ScubaPro wing about 30kg lift. The back plate is a www.blackart.com.au.

Hear I am wearing the unit, front view.

Hear I am wearing the unit, back view. You can see that I have added another drager tank to the other side. One down fall of the case design for SCR mode is that it needs to be balanced by a tank on either side. I am was currently diving the unit in SCR mode with a 5 litre bailout on the left hand side of the unit which balances out nicely. When I close the unit the drager bottle and reg will be for diluent on the left hand side and the 5 litre will be for Oxygen on the right hand side. Bailout will be carried on the left hand side as I do now for twins.