[Woodworkers] Wood movement in Hand Mirror

[Gcw804 at aol.com]

Chuck,You don't mention what type of wood you are using. I imagine  that it 
is some kiln dried hardwood. If that is the case, with that small of  
mirror I wouldn't think you will get much movement. I would probably just take a  
dowel  and wrap sandpaper around it and run it around the inside  perimeter 
some to open the mirror recess up a little bit. I would think  that would 
take care of it.
 
Gary Williams
 
 
 
In a message dated 11/19/2016 12:51:42 P.M. Eastern Standard Time,  
chuck.steger at gmail.com writes:

 
I’m  making some hand mirror’s (4x6 oval mirror) as Christmas presents. I 
used the  actual mirror to rout a wooden mirror template (note: If you do 
this, the  mirror will get beat up a little so make it a sacrifice mirror – 
not too bad  at $2/mirror). I then took the mirror template and using 
different size router  collars and a ¼” router bit, created an exact mirror hole 
template. This took  several steps using different collars (who said 
woodworkers don’t use math!)  but it created a piston fit between the solid template 
and hole template. I  was really pleased it came out so well considering it’s 
a stepped process. Of  course the real test is does the mirror fit and it 
is an exact fit. I will use  the hole template and a pattern mortising bit to 
rout the recess for the  mirror. I’ll also use the solid template to rout a 
channel for inlay around  the mirror. 
As  pleased as I am that I achieved a piston fit in the 2 templates, I am 
now  wondering if that is a good thing or not. In other words, will wood 
movement  pop out the mirror or even break it? I plan to rout an 1/8” recess for 
the  mirror and attach the mirror with carpet tape. I don’t want to glue 
mirror in  case someone needs the mirror replaced (I’ve had to chisel out a 
glued mirror  before and it is a PITA). Do I need to take a large dowel 
wrapped with  sandpaper and open up the hole a little on the hole template? If so, 
how  much? 
I know  wood moves in both directions (across the grain) and if you glue 
something in,  sometimes it forces the wood movement to the outside (as 
opposed to the  inside) but the mirror won’t be glued. 
Thanks! 
Chuck 



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