what rpm would work the best do you all think? & would i want to half what i have for my 1/4 inch router on the movement speed of the sled too?
Caleb Yager wrote:
what rpm would work the best do you all think? & would i want to half what i
have for my 1/4 inch router on the movement speed of the sled too?
all else being equal, if you cut the diameter of the bit in half, you would
double the rpm (the significant number is the speed of the edge of the bit
against the wood, the technical term is “surface feet per minute”
Surface feet per minute - Wikipedia )
but it’s important to note that things are almost never equal
first, the default router can’t really run as slow as we want it for the 1/4"
bit, so the ideal speed for a 1/8" bit is less than double the minimum router
speed
second, the flutes of the 1/8" bit are probably less than 1/2 the size of the
flutes on the 1/4" bit, meaning there is less room for the chips to fit, so you
probably need to cut at a slower feed rate (the technical term here is ‘chip
load’ per flute What is Chip Load? - Cimquest Inc.
Chipload Calculator | GDP Tooling
) which incorporates your feed rate, the number of flutes, and the surface feet
per minute, which is your tool diameter and rpm.
David Lang
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Thank you David for the comprehensive response, that is some very helpful & valuable information, I really appreciate how well you explain stuff & why it is so on here
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