Verification: 937b329de42152d7

Friday, May 21, 2021

Internal keyway in CNC lathe, programming help

 My post on internal key way was removed by blogger (google), check mail at the end

Broaching in CNC-lathe

 The simple way to make an internal slot in your CNC-lathe


You need to get or make the tool, it's not included.

Video: 



An example of tools

Broaching tool


I read a lot of tutorials on how to broach slots, everyone is parametric, with R-values, and so on, and I thought, can you do this easy?.

My solution so far, the main program and a sub-program, some inc programming, and we're there

Main:

N10 G54

N20 

N30 WORKPIECE(,,,"PIPE",256,0,-35,-30,70,30)

N40 T="PLUNGE_CUTTER_3P" ;zero Z at center of tool

N50 G96 S10 M5 ;not the best "no rotation" command

N60 G94 F300 ;feed mm/min

N70 G0 X30 Z2 ;startpos

N80 KILSUB P10  ;subprogram, P=repetition times (how deep you go)

N90 G0 G53 X500 Z600 D0

N100 M30

and the sub:

N10 G54 ;just in case

N20 G91 X0.3 ;inc cut/sub run, aka cutting depth

N30 G90 ;abs prog

N40 G1 Z-20 ;depth in Z

N51 g0 Z2 ;return of tool

N60 m17 ;exit sub

Things that have a deep impact, the P-value is the cutting depth x how many repetitions needed.

something's not completely finished, never tried this for real, just couch-programming


now for the big techs small people bullying:

-------------------------------------------------------------



Hello,


     As you may know, our Community Guidelines 
(https://blogger.com/go/contentpolicy) describe the boundaries for what we 
allow-- and don't allow-- on Blogger. Your post titled "Broaching in 
CNC-lathe" was flagged to us for review. We have determined that it 
violates our guidelines and deleted the post, previously at 
http://cnccodinguide.blogspot.com/2020/12/broaching-in-cnc-lathe.html.

     Why was your blog post deleted?
     Your content has violated our Malware and Viruses policy. Please visit 
our Community Guidelines page linked in this email to learn more.

     We encourage you to review the full content of your blog posts to make 
sure they are in line with our standards as additional violations could 
result in termination of your blog.

     For more information, please review the following resources:

     Terms of Service: https://www.blogger.com/go/terms
     Blogger Community Guidelines: https://blogger.com/go/contentpolicy

     Sincerely,