Can't remember how to synchronize sub with main

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03-17-2017, 08:37 AM
petruccimesa

Can't remember how to synchronize sub with main

I have a part that I'm tapping a 6/32 threaded thru hole on the main spindle. Running a Citizen L20 VIII. Using G84.
I want to go back in the hole with a tap on the sub side. For the life of me I can't recall how to do this. I'm pretty certain it's G114 but I'm sure I'm missing something else?
03-17-2017, 02:37 PM
MCImes

Re: Can't remember how to synchronize sub with main

You'd definitely need to use a phased pickoff. Once you do a phased pickoff, you will have to play around with the R value until the threads line up on the sub.

G114.1G114.1- SPINDLE SYNCHRONIZE. Used to exactly lock the P.O
and the main spindle. G96 can be used also. We can also phase shift
so we can pick up odd shapes while the spindle is running or orient fratures from main to sub

G114.1 H1 D-2 R0 (if 'R' is used then 'M77' is needed)
- H1= Commanding spindle 1 for S1 main spindle
- D-2= Following spindle 2 for S2 PO spindle - Rotation like m24
- R0 = Degrees of rotation - controls orientation of sub relative to main

Example
T100
G50W-.094S50
G0X1.1Z4
M97M95
M3S1=1000M24S2=1000
G114.1 H1 D-2 (not using G814 or M77 to save time)
G96 M3 S200(MAIN SPL COMES ON AND PO SPL AL
G650 (PO SPL COMES OVER THE PA
!L1 (WAIT PO SPL CH
G1X-.05F.0
X-.1F.003
G50W.094
G97M
G113
G600

Or you could use G814. From the manual:

G814-Same as G114.1 but you don't need all the codes on the
command line. You can use the R command for phase shifting
Citizen added this macro just to make it easier to use spindle
sync. See G114.1 and G113. You may save time by not using G8
G814 even with no 'R' argument will internally use 'R0' and this
Example:
G814 R10. same as G114.1 H1 D-2 R10.
G814 (no R) same as G114.1 H1 D-2 R0

Good luck!
03-19-2017, 05:28 PM
cogsman1

Re: Can't remember how to synchronize sub with main

Quote:

Originally Posted by MCImes

You'd definitely need to use a phased pickoff. Once you do a phased pickoff, you will have to play around with the R value until the threads line up on the sub.

G114.1G114.1- SPINDLE SYNCHRONIZE. Used to exactly lock the P.O
and the main spindle. G96 can be used also. We can also phase shift
so we can pick up odd shapes while the spindle is running or orient fratures from main to sub

G114.1 H1 D-2 R0 (if 'R' is used then 'M77' is needed)
- H1= Commanding spindle 1 for S1 main spindle
- D-2= Following spindle 2 for S2 PO spindle - Rotation like m24
- R0 = Degrees of rotation - controls orientation of sub relative to main

Example
T100
G50W-.094S50
G0X1.1Z4
M97M95
M3S1=1000M24S2=1000
G114.1 H1 D-2 (not using G814 or M77 to save time)
G96 M3 S200(MAIN SPL COMES ON AND PO SPL AL
G650 (PO SPL COMES OVER THE PA
!L1 (WAIT PO SPL CH
G1X-.05F.0
X-.1F.003
G50W.094
G97M
G113
G600

Or you could use G814. From the manual:

G814-Same as G114.1 but you don't need all the codes on the
command line. You can use the R command for phase shifting
Citizen added this macro just to make it easier to use spindle
sync. See G114.1 and G113. You may save time by not using G8
G814 even with no 'R' argument will internally use 'R0' and this
Example:
G814 R10. same as G114.1 H1 D-2 R10.
G814 (no R) same as G114.1 H1 D-2 R0

Good luck!

You MUST add the line M77 to "Phase" the two spindles.
The G114,1 H1D-2 MATCHES the spindle RPMs and direction.
Adding the R0 (or R ##)
will correct the ZERO position while matching the RPMs
ONLY IF YOU ADD THE COMMAND TO PHASE ADJUST!! (M77)
The line following the G114.1 or G814 must be "M77"
Now you will have the thread start position consistant and will be able to chase the thread once you get the R## correct to match.