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UC Berkeley Mechanical Engineering Department

American Society of Mechanical Engineers at UC Berkeley


Week of March 22-28 2004

Over spring break we did a lot of work on the car.

Monday:
The last layer of glass was applied.

Tuesday:
After cutting out the bubbles in the last layer of glass, we built a dam and mixed the X-30 expanding foam. We had a bit of an incident and the X-30 ended up all over the floor.

Wednesday:
After applying a final coat of X-30, we popped the bottom mold and began the sanding process on the bottom female. We also continued sanding the trouble spots on the top female, adding more gelcoat to those areas.

Thursday:
The electricity was out when we arrived at the site, however after sanding in the dark for about an hour the electricity came back on. The sanding continued, aided by the watching of Family Guy.

Saturday:
We sanded both the top and bottom molds to 1500 and waxed both molds using the 4 step waxing process. We then applied PVA and vacuum tape to the female molds in preparation for the carbon lay-up.

Sunday:
We did the carbon lay-up for the bottom. We started by applying blue dyed epoxy to the carbon fiber inside the female mold. Then we prepared the mold for the vacuum bag. After tinkering with the vacuum pumps we finally got a suction and left the vacuum on overnight.

The carrier for the clutch

The dam around the bottom male for the X-30

Some of the items that were entombed in the X-30

Mixing the X-30… before it expanded out of the bucket

The mess caused by the X-30 incident

A casualty of the X-30 incident

The bottom, popped

The bottom molds next to each other

Mike filling the hole in the mold

Wet sanding the bottom

Wet sanding in the dark

The bottom, post waxing, PVA and application of vacuum tape

Chris preparing the carbon for the lay-up

Mike in his dress Tyvek

Laying the breather in after applying the epoxy

Bagging the mold

Attaching the vacuum bag with the tape

Taping a loop

Vacuum activated

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