G98 & G99 drilling

[Oppiz]

for some reason I'm unable to feel confident in setting up of my drilling cycles. If I have different depths, jumping clamps with different retract heights etc. I'm always double checking my code and watching the machine with my hand on the switch because I'm not quite sure of myself. Is there some where that I can look at examples of code and or MC drilling set-up for different situations? What I need is an idiots guide to drilling.

[1 master]

sometimes i compare the code to the backplot movement in these kinds of situtions.

[Thad]

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What I need is an idiots guide to drilling.

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I'm sure Hardmill can write one for ya.

 

Seriously, backplot is your friend.

 

Thad

[Oppiz]

quote:

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backplot is your friend

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Yes, this is true if your post is flawless but.... I'm not 100 percent sure of my post.

[Guest CNC Apps Guy 1]

quote:

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...but.... I'm not 100 percent sure of my post...

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I'd get that taken care of first.

[Hardmill]

quote:

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I'm sure Hardmill can write one for ya.

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Here ya go :

 

S10000 M3

G0 G90 X0 Y0

H1 Z1.

G83 G98 X0 Y0 Z-30.000 R0.1 Q.075 F2000.0

G80 Z-50.

 

Thad will take it for a test drive for ya.

 

 

PEACE

[Hardmill]

quote:

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I'm sure Hardmill can write one for ya.

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Actually anything you need to know can be found

here in my book. At a bookstore near you.

 

 

 

PEACE

[Oppiz]

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I'd get that taken care of first

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Then only time I'm not sure of my post is when I'm doing something out of the ordinary. Like rectracting over an obstacle then starting at different top of stock, things like that. When my code isn't correct sometimes, I'm not sure if its a post issue or if its the way I programmer the operation in MC.

[Hardmill]

I always keep G98 active so I always retract to

my initial plane. Let you operator tweak it

at the machine. Thats a good operators job.

 

JM2C

 

 

PEACE

[EazyE]

Oppiz, I went through the same problem a couple weeks ago - If you DO NOT select the retract only at beginnig and end of operation. Then it should post as a G98 (depends on post) this will let you select the feed plane to the top of your hole and retract to your clearance from hole to hole. when its done drilling from the feed plane it will go to the retract position and move to the next hole. Gotta thank JPARIS for that one.

[Chris Rizzo]

that's some funny $hit hardmill