[Author Prev][Author Next][Thread Prev][Thread Next][Author Index][Thread Index]

[ATM] trepanning




    Been following this thread with some interest.Cutting a piece of flat 
glass at a 45 degree angle is a cute trick.The drill press is 1 way to do 
it.I remember doing some blanks for Nate up the road from me.I still have 
the cutter I made for the job.I believe I used #220 sil/carbide.The idea of 
sandwiching some glass over the part to be done is a  neat idea.My 
compliments to the gentleman that came up with it.Since I have not done 
this before,I have a few observations.I imagine guiding must be a real 
problem.To steady the cutter,an arm of some kind could keep the tool from 
deflecting away from the cut.The alternative is to do a 'dwell-cut' upon 
first contact.Let the slow-moving edge make its own slot before 
continuing.I would make a steady for the drill only because I'm an obsessed 
machinist.Chipping on the back results from break-out at the finish.To 
center your work,just make up a wooden plug with a hole in the middle that 
is the size of your diagonal. Cut this on a saw at a 45 degree angle.Put 
the wood centering jig in the drill press holding it by a short rod that 
snuggly fits the hole.That should center the work you position 
underneath.As I read about "Adventures of the Intrepid Optician",I realize 
how close we are in our respective trades.We are both looking for the 
finished gem.I'd really like to push some glass,if I only had the space to 
do it.
regards,Ron

_______________________________________________
ATM mailing list http://www.atmlist.net/