Need Help!- BAR PULL?

[travis1]

ok hear is what i got it just stops when the chuck opens
(BAR PULL)
G98 G18
G0 T1212
G0 X0
Z-1.235
G1 Z-1.835 F4.0
M11
G1 Z-.48
M10
G1 Z.2
G0 G53 X0
G0 G53 Z-21
M1
M30

[Mr.Xtreme]

Travis1,

Well it looks like it would work except for maybe one small thing, A Dwell of some sort between movements of bar and clamping/unclamping.

Here is what mine looks like which does work, the axis locations change but the format does work.

One thing too, always cancel your tool offset at the end of tool.

Oh Yeah almost forgot to tell you.
You must be in full auto for this to work, not single block or it will stop and not continue to execute.

If you are a little leary of positions and such you can go into the settings parm #101 and change it for feed rapid override.
press the feed handlwheel button.
What this will do is overide the rapid, even at 5% you can tweek the wheel down the feed and the rapid drops too to like 1% and you can coast it into position comfortably and not worry about running full auto like you woulf if it wouldn't go any lower than 5%. Even that is too fast to prove out anything really close to chuck.

Hope this helps.

Paul

G00 T404
G98
X1. Z-2.68
G01 X0 F25.
G04 P1.
M11
G04 P2.
Z-.235 F50.
G04 P1.
M10
G04 P2.
X.8 F25.
G00 X7. Z3.
T0400
G99
M30

[DANIEL HALL]

make shure you are not runing step by step or with the door open

this is what i use but m codes are diferent

T0303
M5
G0G54X1.2Z-2.8M9
G98G1X-1.F40.
M69
Z-.235F60.
M68
G99G0X1.2

[travis1]

thats why im hear it was the single block plus the G4's
thanx guys hope i can help you all out some time
any addy. on ridgid tapping thats next and a new one for me is a taper pipe tap to hum
thanx again travis

[Geof]

Just a hint for Single Blocking programs with a bar feed operation. Put an M01 after the chuck closing command and when you reach the chuck open line turn on Optional Stop and turn off Single Block and run through the open and close operation. This way you can get past the bar feed part and then turn Single Block on again.

[ChsBrown]

Are you using the Haas Barfeeder?

[XYZ machine]

He's using a bar PULLER not feed

[ChsBrown]

Originally Posted by XYZ machine He's using a bar PULLER not feed

How's that work or what's the difference? Not trying to be a jerk, just don't understand.

[Geof]

You have a clamp mounted on the turret which is either spring loaded or activated by pressurized air or coolant.

Stop the spindle.

Bring the clamp in to grab the bar.

Open chuck.

Pull the bar out the required amount, this requires feed per minute command.

Close chuck.

Release clamp and continue with program.


Actually a clamp is not essential. I have done it using fingers that fit into a parting tool cut using the sequence: partially part off, bring in fingers, pull bar, finish part off.

[ChsBrown]

Sounds cool. Thanks for the explanation. Now I'll have to watch for one just to see it operate.

[jkruger]

I use a piece of acetal or pvc, bored so that fits tightly on the stock material in an extra toolholder as a "grabber". Just make sure the end of the bar has no burrs.

Stop the spindle,

Bring the plastic in and jam it over the bar.

Open chuck.

Pull the bar out the required amount, this requires feed per minute command.

Close chuck.

Pull away and continue with program.