On Thursday 21 March 2013 22:16:19 Igor Chudov did opine:

> I am not sure how I can put the code in Wiki.
> 
Neither am I Igor, but there should be instructions.  And it probably 
depends on you as your login user having perms.  I haven't actually tried 
it either.

> I am releasing the following code under the GNU Public License:

Thank you.
 
> (Makes a thread on a round part rotated in my fourth axis)
> (Uses a 60 degree end mill)
> 
> O<thread_on_fourth_axis> sub
>   #<x0>          = #1  (X0, left side)
>   #<x1>          = #2  (X1, right side)
>   #<y>           = #3  (Y, middle of the top edge of the round)
>   #<z0>          = #4  (Z, top of the edge of the round)
>   #<safez>       = #5  (Safe Z for rapids)
>   #<zstep>       = #6  (Z Step, positive)
>   #<spr>         = #7  (Step Per Revolution, Also determines Total
> Depth) #<depth>       = #8  (Depth of thread, positive, determined
> automatically if 0 based on 60 degree thread.)
>   #<diameter>    = #9  (Diameter of the round, needed for calculations
> of feed rate)
>   #<frate>       = #10 (feed rate based on surface speed)
>   #<left_handed> = #11 (Set to 1 if left handed)
> 
>   #<rpm>                 = [#<frate>/3.1415/#<diameter>]
>   #<horizontal_feedrate> = [#<rpm>*#<spr>]
>   #<vertical_feedrate>   = [#<frate>/5]
>   #<total_angle>         = [ 360 * [#<x1>-#<x0>]/#<spr> ]
> 
>   (Set negative total angle if left handed thread)
>   O<if> if [#<left_handed> NE 0]
>     #<total_angle> = [-#<total_angle>]
>   O<if> endif
> 
>   O<if> if [#<depth> EQ 0]
>     #<depth> = [#<spr>*1.73205/2] (depth = spr * sqrt 3 / 2 )
>   O<if> endif
> 
>   O<withdraw> call [#<safez>]
>   G0 A0 (go to 0 degree)
> 
>   G0 X[#<x0>] Y[#<y>] Z[#<safez>]
> 
>   ( Start drilling down to Z0, I could rapid,  )
>   ( but slow is safer, will not break end mill )
>   G1 Z[#<z0>] F[#<vertical_feedrate>]
> 
>   #<direction> = 1 (1 is right, 2 is left)
> 
>   #<z> = #<z0>
> 
>   O<loop> while [ 1 ]
>     #<z> = [#<z> - #<zstep>]
>     O<if> if [#<z> LT [#<z0> - #<depth>] ]
>       #<z> = [#<z0> - #<depth>]
>     O<if> endif
> 
>     G1 Z[#<z>] F[#<vertical_feedrate>]
> 
>     (Depending on direction, we go to X1 on the right and turn
> total_angle,) (or go to X0 on the left and go back to ZERO angle)
> 
>     O<if> if [#<direction> EQ 1 ]
>       #<direction> = 0
>       G1 X[#<x1>] A[#<total_angle>] F[#<horizontal_feedrate>]
>     O<if> else
>       #<direction> = 1
>       G1 X[#<x0>] A0 F[#<horizontal_feedrate>]
>     O<if> endif
> 
>     O<if> if [ #<z> LE [#<z0> - #<depth>] ]
>       O<loop> break
>     O<if> endif
> 
> 
>   O<loop> endwhile
> 
>   O<withdraw> call [#<safez>]
>   G0 X[#<x1>]
> 
>   G0 A0 (go to 0 degree)
> 
> O<thread_on_fourth_axis> endsub
> 
> M2
> 
> On Thu, Mar 21, 2013 at 10:46 AM, Gene Heskett <[email protected]> wrote:
> > On Thursday 21 March 2013 11:44:24 Igor Chudov did opine:
> > > Guys, I am extremely happy. I finally debugged my G code routine
> > > enough that it works. I can make any thread, inch, metric, right
> > > hand, left hand, whatever! It also can mill a very coarse thread in
> > > multiple passes, reversing rotation every other pass (to return to
> > > A=0, as an additional benefit).
> > > 
> > > I can now make any bolt or threaded end I want!
> > > 
> > > Thanks to all!
> > 
> > That ought to be put in the wiki, Igor.  Can you?
> > 
> > Cheers, Gene
> > --
> > 
> > "There are four boxes to be used in defense of liberty:
> >  soap, ballot, jury, and ammo. Please use in that order."
> > 
> > -Ed Howdershelt (Author)
> > My web page: <http://coyoteden.dyndns-free.com:85/gene> is up!
> > My views
> > <http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml>
> > For courage mounteth with occasion.
> > 
> >                 -- William Shakespeare, "King John"
> > 
> > I was taught to respect my elders, but its getting
> > harder and harder to find any...
> > 
> > 
> > ----------------------------------------------------------------------
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> > Download AppDynamics Lite for free today:
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> 
> ------------------------------------------------------------------------
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Cheers, Gene
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
My web page: <http://coyoteden.dyndns-free.com:85/gene> is up!
My views 
<http://www.armchairpatriot.com/What%20Has%20America%20Become.shtml>
Windows: an Unrecoverable Acquisition Error! 
I was taught to respect my elders, but its getting 
harder and harder to find any...

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