CHNC 1 HELP !!!!

[garnetram]

Hello,

We have a CHNC 1 lathe with a Fanuc OT-B control and are looking to get this lathe up and running. We have several questions but would like to begin with some sample programs if anyone would be kind enough to pass some on.

Anyone out there have any knowledge of this machine/control?

Thanks in advance!

Rich

[Runner4404spd]

the standard fanuc programming works on this machine. your best bet is to get a fanuc programming manual, it will explain all the standrad g codes. also if you want you can post a drawing of your part and i'm sure someone will help you program it.

[Karl_T]

I've owned one about five years now. Mine has been refit to another control but works the same. If you have question on the machine, fire away. if you have questions on programming, I'll defer to others.

Karl

[g-codeguy]

I believe this is from a CHNC II with Fanuc control. Not sure of the model, but basic programming will be the same. Only matters when you start using Macros. Haven't had the lathes for several years.

Fairly certain this is not from the CHNCs we had over 20 years ago. They had Allen Bradley controls, and I'm pretty sure they didn't used a G76 canned cycle for threading. This is an NPT.

Being brass it was run dry. Change M3/M4 to M13/M14 if you want coolant.

1-Mar-1999 10:25:37 ? CYCLE TIME
SEAT, LOWER 1-1/4 IN. HEX BRASS #6 CHNC
REV. K

LEFT END 2ND OP.

T0101 80 DEG. PROFILE TOOL CNGP-432 KC730
T0303 1/2 IN. 2-FLUTE ENDMILL
T0505 5/16 IN. BORING BAR CPMT-2151LF KC730
T0707 THREADING BAR 11NR 18NPT 3/8 FRONT
*

:3253 (208995-004 L.E.)

N100M98P1 (FACE)
S3000M3
T0100
X1.47Z.2T0101
Z-.0766
G1X1.2213Z-.0048F.004
G2X1.1853Z0R.036
G1X-.065F.005
M98P2
M1

N300M98P1 (ENDMILL)
S3000M3
T0300
X0Z.2T0303
Z.02
G1Z-.698F.003
M98P2
M1

N500M98P1 (BORE)
S3000M3
T0500
X.76Z.2T0505
X.7476Z.02
G1X.5692Z-.0692F.005
X.5498Z-.38
Z-.69
Z-.702F.002
X.23F.005
G0Z.03
X.76
G1X.7392Z.01F.015
Z0F.002
G2X.7094Z-.0062R.021
G1X.579Z-.0713F.003
X.557Z-.4256
Z-.704F.004
X.23
M98P2
M1

N700M98P1 (THREAD)
S2000M3
T0700
X.53Z.3T0707
G76X.639Z-.6K.0445I.028D1300F.05556
M98P1
M30
%

[wmpy]

Something unique to the CHNC machines is that you need to program your collet closer delay for the collet open/close to work. This is done with a macro call that looks like this.

G65 P9150 H1.0

I usually make this the first line of my program. The H1.0 indicates a 1 second collet open/ close delay. This number can be changed to whatever you like. Just make sure you have the O9150 macro program in your memory.