[Halld-cal] Some observations from construction

[George Lolos]

Hi Elton:

Today's production was nine layers.  The 1st Article construction is  
going very well.  The use of the silicone rubber to compress the  
polyethylene sheet to prevent epoxy migration has worked perfectly so  
far.   In fact, it's interesting that, although the students use  
slightly more epoxy per layer than we used in Modules 1 and 2, yet,  
very little epoxy oozes out the sides and covers the layers below  
it.   The epoxy seems to travel and exit down the fiber channels  
(grooves) and out the ends.   As a result, so far the built is  
remarkably clean along the long sides.

So far so good,

George