Good evening. Having just bought my own static copy of Millalyzer, I thought today would be a great day to enter some of my endmill collection into the tool library. The tool library in Millalyzer requires numerical data to be added before completing the new tool entry. My example endmill bit to enter into the Millalyzer tool library is the one which was supplied with my new SO3. This is the Carbide 3D #201. I would like some assistance with understanding which of the parameters I should enter (as a minimum) and which could be omitted.

Carbide 3D #201 is supplied as a ¼ inch shank cutter with 3 symmetrically shaped and equidistant flutes. The cutting diameter is nominally ¼ inch. The shaft is the same diameter as the shank and there is no defined neck. The length of cut measures ¾ of an inch. There are no indications on the shank to guide placement length in the toolholder… which also holds an implication for exposure length. The overall length of the tool is 2½ inches. The helix angle is unknown and I have no data about the axial or the radial rake angles.

My thinking is that I should enter (as a minimum) each of the parameters in **BOLD** face:

**Material:** (all of my cutters are tungsten carbide tipped)

**DC** - cutting diameter

**DMM** - shaft diameter

LU - neck length… where a neck is present

DN - neck diameter… where a neck is present

LT - taper length… where a taper is present

LXP - exposed length… where the minimal stickout parameter is known

**LF** - overall length

RE - corner radius… where a radius is present

FHA - helix angle… where the helix angle is known

**APMX** - length of cut

GAMF - radial rake angle

GAMP - axial rake angle

**EDRD** - cutting edge radius

uneven flute Indexing and unequal helix are parameters which do not concern me now.

**Questions:**

- Will the parameters in the bold typeface be sufficient data for Millalyzer to produce a useful result?
- What is the method for measuring the helix angle if it is required?
- What methods can be used to measure DC, where there is no available information?
- Does the presence of a neck mandate parameter editing and further accurate entry?
- Does the presence of a taper mandate parameter editing and further accurate entry?
- Should LXP data be added regardless of the presence of a minimal stickout datum?
- Can the rake angles be omitted from the tool library and the Millalyzer still produce good results?

I don’t know if a datum for stickout minima is the norm but all of my trend cutters have one.

Any and all answers are very much appreciated.