View Single Post
  #9  
Old 17-09-2009, 04:49 PM
gmbfilter (Geoff)
Geoff

gmbfilter is offline
 
Join Date: Mar 2007
Location: South Tacoma NSW
Posts: 571
Quote:
Originally Posted by erick View Post
Two problems I can think of:-

1. Back of mirror is not perfectly parallel to the front surface? I guess could place a spirit level across the front of the mirror (just touching the edges) and adjust until level in several directions.
2. Damn surface tension means the water droplet "sticks" and fights gravity - hence the add detergent suggestion and tapping - not sure how hard you'd have to tap a 22" lump of glass to transmit a "shock" to the droplet - maybe a big sledgehammer!

OK, maybe not such a good idea after all
No no you use your collimating mallet , rubber of course
Reply With Quote