Switching from tip of tool to center of tool

[Zoober]

Please elaborate there dolphin.....

I do 3+2 and mutiaxis sufacing all day long to tip. Don't see any problems at all.

As G and others said, 5 ax is a little more efficient with ball em's but wrong surfacing?

[gcode]

quote:

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but wrong surfacing?

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only if the operator comps the tool wrong

[ReDEyZZ]

Thad, I also use tip for all my 2-d and 3-d programming, It has always worked out perfect for me??? Going off the center of the cutter Rad seems dangerous and troublesome for operators.

 

I don't understand why your other programmers think this is a good idea??

 

[Zoober]

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only if the operator comps the tool wrong [big Grin]

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That's why we have tool probes.

Other than verify a couple of my G10's my setup guys basically hit go.

That's why we got a new MAM monday!

Vericut wif full machine sim next week.

I aint goin nowhere.....

My condolences Thad

[gcode]

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I don't understand why your other programmers think this is a good idea??

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Cause they're old school NCL programmers

Back in the day that was the only way to do it.

[dolphin1]

there were several articles written years ago and im trying to find one of them but havent yet. but what they said is that when doing certain types of arc's that if you didnt use center of the tool then the tool path didnt follow the proper path and resulted in over/undercutting of the part. at the time my shop forman showed me this and this is what we had to do from then on.

[Bruce Caulley]

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It gives me a great sense of job security knowing that there are shops out there making decisions like this. I'm sure your materials suppliers will be very happy. Good luck.

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+1000

 

Prior to having a good 3d CAM system centre comp was acceptable. Nowadays.................

 

Bruce

[Dave.L]

Respectfully,

 

For 2D toolpaths, This makes ZERO sense. Thad, the people in your organization forcing this simply need to understand that this is a bad idea.

[Thad]

The verdict is finally in. Tip of tool for everyone!

 

Thad

[gcode]

quote:

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The verdict is finally in. Tip of tool for everyone

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how many gouged parts were required to reach this

decision

[Thad]

quote:

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how many gouged parts were required to reach this

decision

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None. It was kind of put on the back burner until now. We've also edited all of our posts to say "Use tip of tool" so when running old and new programs, there shouldn't be any confusion.

 

Thad

[Todd Tracey from Fastech]

the only time I've ever run to center of the ball is on a 3D contour, the only time! I ran stamping dies for years using surface models without any issues comping to tip.

[iowajim62]

quote:

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The verdict is finally in. Tip of tool for everyone!

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Congrats

 

Tell your fellow "programmers" welcome to the next century.

[BernieT]

[Guest CNC Apps Guy 1]

Though I would comment on this...

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...there were several articles written years ago...

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Years ago controls were not as powerful. Years ago controls wer not as fast. Years ago everyone used Cutter Compensation in the Control (glad that madness is waning). Years ago is exactly that; years ago. Let's talk TODAY.

 

Rare is the time when I need to use center of rad. on my tip comp. Maybe once a year to get the path smoothed out just right. It should be the well noted exception NOT the rule.

[Travis_Buchanan]

I have used in only with lollipop cutters, and that was the only thing that would work. Draw the geometry, run center of the geometry and comp to center of tool.