Peck drill cycle

[Philcott]

I have been drilling more and more titanium lately and I need a drill cycle (it would need to be longhand for my machine) that rapids from in front of the part to a position (often an R value) then drills to a designated depth with programmed in-feed increments and uses a chip breaking movement.

 

Sample of a canned cycle might be something like this.

 

G0 X0 Z.2

G83 Z-1.5 R-.15 Q1500 V.01 F.005

G80

 

V would be the programmable (non-rapid retract) chip breaking move.

 

My machines don't have a canned cycle that will do this so long hand would look something like this.

 

G0 X0 Z.2

Z.05

G1 Z-.1 F.003

W.005

Z-.25

W.005

Z-.4

W.005

.

.

Z-1.5

G0 Z.05

Z.2

 

Can anyone help me figure out how to get one of the custom drilling cycles to output code like this?

 

Thanks

G80

[Thad]

Sounds like a G73 cycle, does it not? I think MC calls is "chip break". It's like a G83 but it doesn't retract out of the hole with each peck.

 

Thad

[Craig-B]

Try changing your post to do longhand code in the CD for Switches and Position calculations. This chould give you longhand.

Set usecanpeck and usecanchip to no.

 

# --------------------------------------------------------------------------

# Enable Canned Drill Cycle Switches

# --------------------------------------------------------------------------

usecandrill$ : yes$ #Use canned cycle for drill

usecanpeck$ : no$ #Use canned cycle for Peck

usecanchip$ : no$ #Use canned cycle for Chip Break

usecantap$ : yes$ #Use canned cycle for Tap

usecanbore1$ : yes$ #Use canned cycle for Bore1

usecanbore2$ : yes$ #Use canned cycle for Bore2

usecanmisc1$ : yes$ #Use canned cycle for Misc1

usecanmisc2$ : yes$ #Use canned cycle for Misc2

 

 

Also

 

# --------------------------------------------------------------------------

# Position calculations, generally these do not need to be modified

# --------------------------------------------------------------------------

pmiscint$ #Capture the top level absinc for subprograms

if sub_level$ = zero, absinc$ = mi2$

#Disable cutpos2 if not 4 axis, saves time

if rot_on_x = zero, cutpos2$ = m_one

 

pusecannedyes # Use canned drilling cycles

usecandrill$ = yes$ # Use canned cycle for drill

usecanpeck$ = no$ # Use canned cycle for Peck

usecanchip$ = no$ # Use canned cycle for Chip Break

usecantap$ = yes$ # Use canned cycle for Tap

usecanbore1$ = yes$ # Use canned cycle for Bore1

usecanbore2$ = yes$ # Use canned cycle for Bore2

usecanmisc1$ = yes$ # Use canned cycle for Misc1

usecanmisc2$ = yes$ # Use canned cycle for Misc2

 

pusecannedno # Use canned drilling cycles

usecandrill$ = no$ # Use canned cycle for drill

usecanpeck$ = no$ # Use canned cycle for Peck

usecanchip$ = no$ # Use canned cycle for Chip Break

usecantap$ = no$ # Use canned cycle for Tap

usecanbore1$ = no$ # Use canned cycle for Bore1

usecanbore2$ = no$ # Use canned cycle for Bore2

usecanmisc1$ = no$ # Use canned cycle for Misc1

usecanmisc2$ = no$ # Use canned cycle for Misc2

[Rob @ Target Machine]

quote:

---

My machines don't have a canned cycle that will do this so long hand would look something like this.

---

If your machine doesn't have a G73 chip-break cycle, the control def has a check-box to switch over to long code. Un-check it for long code.

 

[Philcott]

Thanks guys. I have a look at that stuff tomorrow. I'm pretty sure it has a G73 cycle. I'll read more about it as well. I kind of get in a rut using what I always use and sometimes don't see the other options.