Deep Hole Drilling/Reaming

[glbreil]

I have a couple of questions regarding the Deep Hole Drilling Cycle in Intercon. I have been using that cycle with a form reamer and I use a high pressure flush down the bore against the reamer and retracting all the way every time so that it can flush all the chips. Once I am close to finished the depth I need to be measure the depth with a gage and then determine the final cut depth. I am not even sure this is the best cycle to use, but it works pretty good.

The first question: is there a way to reduce the cutting depth increment as you get deeper in the hole? Right now I change the gcode that is procuced by Intercon to reduce the cutting depth as the hole gets deeper and the chips get harder to flush, but thought it might be possible to do that automatically in the cycle.

Second question: once the cycle is complete, and I use G28 to retract out of the way so I can measure with the gage, once I have the final depth measurement is there a way to be prompted to input the additional depth required, and then continue the cycle?

Right now I am changing the tool wear and running the cycle again, but seeing the post Uwe put on for the quick skim cut made me think it was possible to input that information and continue in the original cycle.

Any thoughts are appreciated Gary

[suntravel]

For different steps in depth you can use two drilling cycles.

If you want user input in a g-code, easy to do with M224

Uwe

[glbreil]

For different steps in depth you can use two drilling cycles.

If you want user input in a g-code, easy to do with M224

Uwe

Thanks much, I will give M224 a try and see how that works.

I have tried two cycles, but if you want to fully retract every time, it doesn’t really seem to save anything, because it doesn’t have a starting depth of cut. It always start at the retract height, so you end up cutting air on the second cycle down to the final depth of the first, but editing the code isn’t that big of a deal, so I can just carry on with what I have been doing on that part.

Thanks Gary

[suntravel]

Look for G83 in the manual how to do full extract for a second deep drilling cycle.

Uwe

[glbreil]

Look for G83 in the manual how to do full extract for a second deep drilling cycle.

Uwe

G10 P83 R.02
G83 X0 Z-1 Q.25 R.05 L3

G10 P83 R.02
G83 X0 Z-2 Q.1 R.05 L3

The problem with this unless I am mistaken is that if I want to retract completely to clear the chips I have to air cut what was completed in the first cycle to get to the second cycle. If that’s the case I might as well cut the whole thing with the lesser cut depth in the second cycle.

Ideally when I hit the second cycle I could rapid to -.980 then start feeding, but then it doesn’t retract all the way.

Am I missing something?

Thanks Gary

[suntravel]

For the second pass, set the clearance 1" longer

G10 P83 R1.02

Uwe