I keep doing the math for chip load on a 1/4 inch 4 flute endmill.
https://www.amazon.com/gp/product/B0070YYP28/ref=oh_aui_detailpage_o02_s01?ie=UTF8&psc=1
My math seems off. Please correct me.
16000 (RPM) x 4 (Flutes) x .002 (Chip Load) = 128 (IPM)???
RPM = SFM x 3.82 / Tool Diameter
IPM = RPM x # of Flutes x Chip Load
Chip Load = IPM / RPM x # of Flutes
SFM = .262 x Tool Diameter x RPM
Can i safely assume that i can double the ipm for double the flutes?
your math is correct but I don’t think that the 4 flute end mill is the best option for you especially if you are doing pocket cuts if you are only doing the edges of the aluminum I would say go with a 4 flute but I think you will have better results in aluminum with a single flute tool
no actually you want to cut the feedrate in half not double it
64 ipm
128 ipm
here is the calculator that I use and it works great
Chipload_calculator.xls (15.5 KB)
im not too worried about edge finish.
also whats the proper chipload?
check out that chip load calculator
but all tools have different chiploads that they are designed to run at
who is the manufacture and the part number of the tool your are wanting to use?
Here is a generic chipload chart that they have on there website
these tools just aren’t designed for cnc routers though they are designed for metal milling machines
ummm the exel sheet has some error in it
my bad sorry lol I read it wrong and jumped the old trigger on that one!! (the math is correct though lol)
watcha mean?
OMG now im totally triggered!!! 
look at my inputs and see the outputs it gave me
Yeah I dont see the problem lol the calculator does not go down the tenths decimal place so you wont see the change from 100 to 128
try this calculator you get the same results
how much is well below? i do have the stiffening mods
I would defiantly start here like phil said you just can’t obtain the proper chiploads with a x-carve the machine is just not built for it I would start here and then work your way up from there
and whats the correct DOC when using these numbers?
cant wait 412hrs and 16 min to run a carve!!!
