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THE BUBBLE



Here is a photograph of the Planet Plastics bubble I will be using. Planet Plastics is a division of Consolidated Plastic Corporation, based in Chino, California. This particular bubble was sold on 7 January 2002. The packing slip describes it as:

2-LIS-001
CLEAR ACRYLIC SPHERE LOST IN SPACE
REV. "1" WITH FORMED BOTTOM PLATE
1/8" THK 13.5" DIA. WITH 3 1/2" DIA. CENTER HOLE.

With shipping, it originally cost $165.00
 
 

This particular bubble will require one minor task to make it functional:

1. Drill four holes for the small screws that will attach the bubble to the bottom plate.
 

Mercifully, the bubble came with the large hole in the center of the bottom plate already cut out. It is through this hole that the neck emerges.

Unfortunately, my Planet Plastics bubble is incorrect in many respects and will eventually have to be replaced. Apparently, Planet Plastics made adjustments to its design for the Lost in Space Robot bubble. I understand that the later bubbles had been corrected in all respects. My bubble, despite the early 2002 sale date must have been old stock from the original batch of unacceptable bubbles.

First, my Planet Plastics bubble has a flat top. The original robot's bubble had a slight swelling at the top to accommodate the spinning crown:

 

Second, the diameter of the bottom hole in my Planet Plastics bubble is too large. Perhaps this was intentionally designed this way to make it easier to slip the brain into the bubble. Unfortunately, this leaves almost no room for the placement of the four screws that hold the bubble to the acrylic bottom plate.

 

In the original robot, there is at last a half inch overlap between the bubble and the bottom plate. This gives all the room necessary to place the attachment screws.

What shall I do? Until I find a better bubble, I will just have to use the one I have.
 

Incidentally, there was once much discussion on the B9 Exchange list about discoloration of acrylic bubbles.  Certain photographs of bubbles of various manufacture were pointed to as proof that yellowing of formerly clear acrylic bubbles could and did occur. While I do not dispute this, I would like to say that photographs can provide poor and unreliable evidence for this. Mere seconds after I took the photographs of my bubble that you see above, I snapped another photograph with the flash turned off. The poor bubble looks as if it had spend years in a disreputable cigarette and cigar smoke-filled singles bar in Detroit.



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