Bridgeport DX-32 Torq-cut 22 peck drill problems

[RedGTZ]

Hello, guys,

I'm having issues with peck drilling on my Torq-cut 22 with DX-32 control. Up to now I only used G81 for drilling and everything went perfectly. G84 Tapping also went perfect. I programmed the G83 code just like the manual says, and I always have an error that the Z axis will run too far in the Z axis....

machine is set at boss8 & up

I have to drill only one hole, here is the code:

N100 G0 G17 G40 G70 G75 G80 G90
N102 T19 M6
N104 S1200 M3
N106 G54
N108 G0 X.9781 Y-1.0813
N110 G0 Z.15
N112 M08
N114 G0 Z.15
N116 G83 X.9781 Y-1.0813 Z5.35 Z.1 Z.15 F5.
N118 G80
N120 M5
N122 M09
N124 G0 M25
N126 G0 M22

I tried to program it in many other ways and it did not work either, G87 chip break does not work either, now I'm cluelless with this and I'm thinking something is screwed within the control...

let me know what you guys think, thanks for any input!

[machintek]

I see nothing wrong with this program.
When you are at the clearance point, can the Z axis physically move down the 5.35 additional inches you want it to move?

George

[RedGTZ]

yeah it can actually and there is a lot of space left. I'vee tried the G83 with small amounts like .5 inch and it does the same alarm.

I had to program each peck move for this program, it was only one hole but we often see a bunch of holes to peck drill or chip break.... does a parameter can cause this to happend?

Thanks for your help!

[mlbz420]

Whats all the garbage on the first line of the program for?

the G54 should be unnescessary as that is the offset the control defaults to.

Whats the G80 for after the G83 line? also unnescessary.


N110 G0 Z.15
N112 M08
N114 G0 Z.15

you dont really need to repeat your z position after an M8 which should
be your coolant on function.

the M25 is unnscessary also when you M22 the z axis will go to the
"quill up position" and the x and y will go to the user specified clear point.

the G0 before you m comands is also unnescessary.


if all your doing is drilling a hole your program should look more like this:


G90 G54
T19 M6
S1200 M3
M8
G0 X.9781 Y-1.0813 Z.15
G83 X.9781 Y-1.0813 Z5.35 Z.1 Z.15 F5.
M5
M9
M22

there also is no need to stop the spindle or coolant at the end of the
program as m22 will do all of that for you, unless your wanting to blow
off the part while it is returning the the clear point.

Try clearing out all the extra garb in the program and see how that works.

[machintek]

Sometimes a program generated by a CAM system will put in a lot of redundant/extra lines of code as it builds a program in blocks.
Personally I always liked to put in a safety line here and there. Example at the beginning of a tool call I would make sure I was in absolute, cancel cutter comp, etc. If a tool broke and you restarted from that tool call, it prevented a novice machine operator from making scrap.
Even line numbers are not always necessary and take up memory space but start doing loops and macros and you do need them.

George

[mlbz420]

makes sense. a friend of mine has the same machine as i but uses featurcam and his programs are always extremely long and has a lot of unnescessary linear moves.


breaking the program down to its essentials though will help to diagnose the problem. i have noticed these controls to be very buggy if canned cycles are not laid out exactly correct.