Thread Mill question

[ujmujm]

Mastercam threadmill tool path does not have option to conventional mill !!! my boss contacted a sales rep who used his fancy code generator in which the tool is conventional milling which I have never done with a threadmill  so I went to my threadmill operation in Mastercam and was surprised to see that you can't  there is reverse wear so I tried that and it posted out with a G42's and G03's ? anybody no what reverse wear is for? 

[pullo]

Top to Bottom - Conventional 

Bottom to Top - Climb milling 

 

ID / OD , Right -hand or Left - hand and Top/Bottom , depending on what your poison is  these  three switches will determine  what you will get . 

 

[ujmujm]

Okay I thought with left hand thread you actually got a left hand thread, that's a little confusing thank you for your help I will play with this and see what the code looks like.

[pullo]

yes You actually do , so be careful .

I'm thinking : ID thread  , (always Right hand ) , Top to Bottom  = Conventional

                         ID thread   (                                )  Bottom to Top    =  Climb

 

and with OD thread the Bottom to Top = Conventional...

Gracjan

[ujmujm]

Yep that's a left hand that's not going to work 

[ujmujm]

Okay I see bottom to top is climb and top to bottom is conventional and you want to select the right hand thread radial button.

[pullo]

yessir 

[Camelot]

Just curious.  Why would you want to conventional mill a thread?

[[email protected]]

I am not positive the purpose with thread milling but I was using a .012" thick slitting saw on some ultem(plastic) and if I didn't conventional mill the plastic would get pulled into the saw and shatter it, but when conventional cutting the saw pushed the material away more consistently and it would make through.