hurco BMC30 - ultimax3

[Plastmo]

hurco guys, would you please give me sample good code for rigid tapping (G88) on 2 or 3 holes?

thanks

[strabe]

What editor are you using? Basic NC or ISNC?

[Plastmo]

what you mean editor?

i just make the toolpath in MC, post, save as .HNC file and open on the control;

the problem that i have is after every hole with G80 machine is retracting full Z to home, so machine is jumping up, down to next clearance level and position to next hole X, Y; i do not have this problem with drilling;

thanks

[strabe]

Sounds more like a problem with your post processer if it's putting a G80 after every hole. G84 is all I ever have to use for rigid tapping.

 

As far as the editor, you have the choice between "Conversational", "Basic NC" and as an option "ISNC" or Industry Standard NC. From your Auxillary button you should see these choices.

 

Can you paste the code that's causing your problem on here?

 

Maybe then one of the post guys can help you out.

 

HTH

 

Ken

[Plastmo]

G84 is just floting tapping but G88 is rigid tapping on ultimax3; i do not have this problem with G84 or G81, G83; only with G88;

 

problem code:

N21300 Z.28

N21310 G88 X-.7 Y0. Z.35 Z.25 F30.

N21320 G80<<<<< *** machine is jumping to Z home

N21330 G0 Z1.18<<<<<< *** and back to this level

N21340 X.7 Y0.<<<<<< *** reposition next hole

N21360 Z.28

N21370 G88 X.7 Y0. Z.35 Z.25 F30.

N21380 G80

N21390 G0 Z1.18

N21400 X1.2483 Y0.

N21420 Z.28

N21430 G88 X1.2483 Y0. Z.35 Z.25 F30.

N21440 G80

N21450 G0 Z1.18

N21460 X2.6483 Y0.

N21480 Z.28

 

good code for drilling:

N20750 Z.28

N20760 G81 X-.7 Y0. Z.4236 F10.

N20770 G80<<<<< *** no jumping to Z home

N20780 G0 Z1.18

N20790 X.7 Y0.

N20810 Z.28

N20820 G81 X.7 Y0. Z.4236 F10.

N20830 G80

N20840 G0 Z1.18

N20850 X1.2483 Y0.

N20870 Z.28

N20880 G81 X1.2483 Y0. Z.4236 F10.

N20890 G80

N20900 G0 Z1.18

N20910 X2.6483 Y0.

N20930 Z.28

thanks

[strabe]

%

O1331

(PROGRAM NAME - 2)

(DATE=DD-MM-YY - 09-06-10 TIME=HH:MM - 13:50)

N1G20

N2G0G17G40G49G80G90

( 1/4-20 TAPRH TOOL - 1 DIA. OFF. - 101 LEN. - 1 DIA. - .25)

N3T1M6

N4G0G90G54X.05427Y-.07675S3667M3

N5G43H1Z.1M8

N6G99G84Z-.5R.1F183.35

N7X1.95427Y-1.02675

N8X4.13383Y1.82222

N9G80

N10M5

N11G91G28Z0.M9

N12M30

E

 

Here's how mine posts. Never had a problem. I'm running a Hurco BMC30 with Ultimax 3 control as well.

[Plastmo]

thanks strabe, but your code is for G84 and i do not have problem with that; G88 is totally different, there is double Z for pecking

thanks

[strabe]

G84 is Rigid tapping on my machine using ISNC. That's why I asked which one you use.

[generaldisarray]

quote:

---

thanks strabe, but your code is for G84 and i do not have problem with that; G88 is totally different, there is double Z for pecking

thanks

---

Thats just because you are lucky

 

You have the same problem in both operations.

That is what Strabe was saying

 

Your post is cancelling the canned cycle with G80 after every hole,instead of after the complete pattern.

[strabe]

quote:

---

there is double Z for pecking

---

So you're trying to peck tap then? Do you always peck tap?

 

Either way, your post is cancelling the canned cycle and it shouldn't do this until the end of each tool or cycle.

[Plastmo]

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

So you're trying to peck tap then? Do you always peck tap?

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

yes, somtimes i'm pecking, specially with small dia taps and dificult material; guys, tapping G88 it self is O.K. i'm just wasting the time with that jumping to Z home but holes are good

thanks

[strabe]

The G80 after every hole is what is causing Z to go home. Why it doesn't go home during a drill cycle I don't know. It may be something internal to the Hurco control, but that's just speculation.

 

I would call your Hurco dealer and see if they can help you.

 

Sorry I couldn't be more help.

 

Ken

[Plastmo]

thak you guys

[veedubnut115]

You should be able to modify your post so that it doesn't output a G80 until after all your holes are done. That is what's causing your machine to go back to z home.

[kunfuzed]

I would switch over to the Industry Standard Editor. You can still rigid peck tap using a Q value. Couldn't hurt to try it!

 

And if not, call Indiana.

[koko76]

Switching over to the industry standard editor only works if that option is installed in your control. They don't all have it by default. The BMC24 that I run does not, and it's a pain.

[astrocncdept]

Industry Standard is nice, but once you get all the bugs worked out Hurco's Basic NC works just fine. I have 8 machines all running Basic NC. I haven't tried rigid tapping as I only have that option on two of my machines. As we only started peck rigid tapping a few weeks ago with the one..."In conversational mode"

I would get rid of the G80 at the end of each position.

I will also have to see what I get when I output the some rigid tapping code and run it quick to see what the machine does.

[astrocncdept]

One quick thought. Try throwing in a G99 before the start of your drill cycle

Something like g99 g88 x1.0 y1.0 z.50 z.10 r.10 f5.0

[Plastmo]

hi guys, i did not try G99 but G98 or deleting G80 does not work

[Plastmo]

o, i've forgot, programming rigid tapping in conversational is perfect

[koko76]

In general I don't have a lot of issues with Basic NC, but tapping is one area where I'd like something a bit different. Like you say I've had no issue with tapping in conversational mode, but I've had all sorts of bizzare things happen when trying to get MC to output decent tapping code. So much so I generally default to just doing it in conversational.

[Plastmo]

finally i landed with G84 or conversational

thanks