On Jul 13, 11:01*pm, Morris Dovey wrote:
DH82C wrote:
Looks like this
_ * * _____________________
A *|_______ *_
*- * * *- B - * |
* * * * * * * * *| C
* * * * * * * * *|___________
I have to do the cut in mulitple passes. I can only take off about 1/8
of an inch at a time.
With a sharp bit, you should be able to cut at least the diameter of the
bit deep with each pass, and you should be able to feed at least 1-1/4"
per second.
When I am cutting I am noticing that in addition to sawdust there are
curls of wood (as if I was using a plane)
This sounds like you're cutting with non-overlapped passes. Try
overlapping adjacent cuts by 50%.
I can only cut about an inch every 4-5 seconds.
When I cut across the grain there is a considerable amount of buring.
Burning is the result of cutting with a dull bit or feeding too slowly.
It is the wood chips that carry heat away from the bit - not the air as
might seem reasonable - and if you feed too slowly the heat will build
up in the bit until it's hot enough to burn the wood (and soften the
cutting edges).
Is this normal? I am assuming I am doing something wrong.. just dont
know what.
It's not abnormal, but neither is it desirable. I'd be inclined to
retire that bit and find a really sharp carbide bit - they cost more but
last enough longer to be worth the expense. (FWIW, I use carbide end mills).
Burning when crosscutting? Curling when cutting? Cutting 1/8 deep by
1/2 inch at a time?
Try turning that around - cut 1/2" deep by 1/8" at a time and keep that
bit moving.
--
Morris Dovey
DeSoto Solar
DeSoto, Iowa USAhttp://www.iedu.com/DeSoto/
Thanks. I am pretty certain they are carbide tiped bits
The router and bit set was a gift (a 50 piece set and I dont think
they payed THAT much for it)
I will pick up a decent bit tomorrow and try it.
I figured a) I was being unreasonable in how much I could cut in one
pass and/or b) I had ruined the bit some how.
( I know I have set off the smoke detectors in the house a couple of
times with the router so maybe I toasted the bit.
Will let you know how it goes
Thanks for the help.