Tool Nose Radius Comp Calculator (only G1)

[kurmay]

I would appreciate if you try and comment.

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[deadlykitten]

hello if you wish to provide an alternative, and people to use it, it must behave faster than whatever it is out there, or at least faster the common methods, and more affordable comparing it to specialized methods ...

for example : if someone enters all those coordiantes inside igf, will definetly get the code faster

yes, you can do the math, but, you need to beat current methods

xls is ok for some stuff, but for rad comp, igf is faster ...


think about a method that is faster than igf, like an okuma dedicated G-code converter, with fast cad / kindly

[kurmay]

if control unit hasn't radius comp spec, you can't use G41 or G42 codes.
IGF generate code with G41 or G42.


Some control units may not support radius compensation.
and igf is not installed in some control units.

[deadlykitten]

aha, i see : what do you think about a macro inside autoCAD ? thus to draw it there, click a button, choose radius + P, and generate compensated code ?

[kurmay]

It's possible but i can't.
I don't know the LISP.

[deadlykitten]

find a sexy L . I . S . P teacher; she will help you, unless you don't alter the deal

or try your luck with software dealer ?

with help from a trained person, i guess this could be done in a few days

until then, stick to xls / kindly

[deadlykitten]

let's try asking here :
... https://www.cnczone.com/forums/autodesk/
... https://www.cnczone.com/forums/autodesk-cam/

or on an oficial autodesk/autocad forum ? maybe someone has a clue about how to do it

[deadlykitten]

hello again, i have looked a bit more over your xls

you definetly need a more performant coding enviroment

i mean, even if it works, i believe that you can do much more than that

also, i really don't know how many people will actually use it ...

somehow i also deal with the same thing, but i develop most of the stuff for my self, and, for now, i don't bother if someone else uses another method ... i don't know ...

this is a bit high-specific

about using macro inside autocad, i have my own cad, and it is working nice for 2d toolptahs, but, in the end, you have to think about the goal that you are after ... at this moment i don't really have time to show my methods, even if i know that some of them are fast ... all i wish is to improve my level, and deliver things faster ...

you are pretty good with osp encription


at some moment you have to decide if you wish to use your custom tools for youself, or try to convice others to also use your tools ... convincing others to change their approach requires patiance and skill / just saying

[deadlykitten]

draw it there, click a button, choose radius + P, and generate compensated code ?

this is a part of what i do, but is not my single approach for comp codes

toolpath code is put inside a turning template, which has translations factors, accordingly to desired comp quadrant

file is sent to the machine

at the machine i select and run the program, but, for the future, i wish only to run the program, not also to select it, but at this moment i don't know how to do this

for common stuff, it is pretty fast / kindly

[deadlykitten]

specific parameters are interfaced via dedicated software

this makes life easier for operators, and the source is capable of custom post-processing

code goes to the radial turret lathe, or to the mill, or to a cnc <> okuma

[angelw]

I would appreciate if you try and comment.

Hello kurmay,
I haven't waded through your math, but at a glance at the Part Profile and the Post Output (see attached below),



I can't see how you get there. The Radius of the Tool and how the tool is set (Orientation - Tool Type) have to be considered; I don't see where this has been specified.

Following is a line drawing using your Profile Points.



Given that you're using G42 in your example, the Tool Path is for an OD Turning Operation. The move from X100 Z850 to X200 Z 850 is perpendicular to the Machine's Centre Line, therefore, there will be no Offset in Z for that move. Accordingly, if a typical OD Turning Tool set by the Leading Edge of the Cutting Insert in Z and the point on the Insert closest to the Machine Centre Line in X is used, then the Z coordinate for this move will be Z850. However, your example shows a Z output for this move as Z870, suggesting that at least the Centre of the TNR in Z is being used with a TNR of 20. This logic doesn't work with subsequent moves. Perhaps you can step the Forum through how you arrived at the Output you have?

Regards,

Bill

[kurmay]

The Radius of the Tool and how the tool is set (Orientation - Tool Type) have to be considered; I don't see where this has been specified.

You must look TOOL DATA section on bottom of excel spreadsheet

[angelw]

You must look TOOL DATA section on bottom of excel spreadsheet

Hello kurmay,
OK, I see that now. However, as stated in my previous Post, G42 and the direction of travel defined by the profile points indicates an OD Turning Op, one in which setting the tool as P1 would be rather obscure; hence my difficulty in reconciling your Post Output values.

Regards,

Bill