How do you define your Thread tools in Lathe?

[crazy^millman]

Okay seems I am always having to redefine my lathe threading tools. Here were are in the 2017 release and the tools are still defined of the center line of the threading tool. I have never in all my years of working on lathes touched a tool off and then adjusted the difference from the tip of the tool to the center line of the cutting angle. I have a thread that needs to go 1.25 deep against a shoulder I can program my toolpath to go 1.249 deep and never worry about my tool crashing into the part since I have always touched off from the end of the tool.

 

I have always wondered if anyone touches off their tools like the way Mastercam defines them for threading?

 

I am against it 100%, but since it is still being done this way I must be in the 1% crowd that doesn't follow the way Mastercam has laid it out. I would like to hear from those that use the the Lathe or MT product and know how you think the tools should be defined. How does other CAM define Lathe Threading tools?

 

Thanks for anyone who take the time to read this and respond to this thread.

[rrichard]

Ron you 100% correct ---  here's one vote

[Newbeeee™]

Ron - we're both in the 1% then

[gcode]

I''ve always used the stock definition, touched the tool off on the face and fudged the Z value in the Mastercam file pitch/2

[specv]

I'm with you Ron!

[Goldorak]

..........

[Goldorak]

Ron you 100% correct --- here's one vote

Same here, I've always called thread tool like any other tool (position #3

For od and 2 for id)

I hope that one day we will be able to change the Z zero position in mastercam's thread tool definition

[jlw™]

I'm a 1%er!

 

 

I don't know of any one who does that.

[SlaveCam]

I do both. It really depends whether there is a risk of collision or if the customer for some reason wants a thread of some "accurate" length.

[mc since v3]

I ended up making custom tools and moving the tool geo. But I agree 100% it should be from the face.

[jlw™]

I do both. It really depends whether there is a risk of collision or if the customer for some reason wants a thread of some "accurate" length.

I think doing both is asking for a problem.

[Mike@Dive Lab Inc.]

Lathe threading tools should always be defined on the edge. I redefined my threading tools years ago and never used a tool defined on center since.

[jeff]

From the face, like everyone else in the world except for the people at CNC Software

[rstalcup]

I'm with Ron 100%

[cherokeechief79]

100% face. I hate it from the center