Different circle centers

[FTKnur]

Hello,

we have in the last time often a Problem with our NC-Code. Our machines brings the error: tool radius too large. (Heidenhain)

I looked in the NC-Code and noticed that there are sometimes issues with the circle centers.

Simply a 2D-Contour with 4 bores.

Bore 1 has 3 CCs

Bore 2 has 4 CCs

Bore 3 has 2 CCs

Bore 4 has 1 CC - all other should look like this!

Sometimes the CCs are the same but when you look at the Bore 2 you see that there are different coordinates.

I tested it with other Posts from Siemens and there is the same Problem.

Have someone the same problems?

Can someone test the file with there own Post?

[Laurens-3DTechDraw]

It seems like it is off by 0.0001mm. Not sure if that really is an issue.

I can't think of a way to would cause trouble with the radius compensation.

What exact line does it error on?

[FTKnur]

In this case it is just 0,0001 because that is a modell made by myself. But last week i get a STEP and there is a Bore with Ø28,5mm.

There i have a 0,012mm CC difference. The problem i have is not to milling the bore complete but when i want to add a horizontal lead-in radius

the machine get the error. I think that this is the reason for the error. The original bore CC is not at the correct point. The error emerges just by lead-in or lead-out radius.

I never can set the Starting point in the radius in a slot hole. There I get by 99% an error.

But I dont know why there are anyway different CCs.

[Laurens-3DTechDraw]

Because of tolerances, you get different Centerpoints.

But those are most probably 1/100 of the tolerance you set in the operation. So not really something that is an issue.

Is you set the tolerance in the operation to a smaller number you should get less deviation.

But since these lines don't cause the actual error I wouldn't go looking for that as the problem.

Let's try and find out why it doesn't work when you enable the horizontal lead-in radius.

What tool and settings make the machine error?

[FTKnur]

OK... now it's really crazy.

I've tested the same programm on a other computer. There is a complete other NC-Code with the same post processor.

I checked the versions -> both the same (Inventor HSM Premium Build 5.3.1.63)

The other nc-code works fine, so I reinstalled HSM.

And now its the same NC-Code and it works better (not so extremely offsets (0,012)).

Now it works much better for me - however this happened. I still have more CCs but i don't care about that.

I hope that is solved with the reinstall.

Thanks for your help 🙂