topic Re: collision detection in blisks in PowerMill Forum

collision detection in blisks

Meysam_Ghorbani — Sat, 05 Dec 2020 20:58:28 GMT

Hello.

1st : why powermill can not detect and solve collision between tool and model(tool ,not holder)(in tool axis = blisk)

i know, if i use automatic collision avoid , I can prevent the holder and the model from colliding

But it works properly in automatic tool axis (with the same setting)!

2nd: in the blisk tool axis (with radial vector /angle= 20) The fifth axis is locked , but in the Automatic tool axis (with radial vector /angle= 20)The fifth axis is not fixed and has a rotation!

Re: collision detection in blisks

jentelman.mq — Mon, 07 Dec 2020 14:25:04 GMT

This is one of the problems with PowerMill, and has not yet been fixed in version 2021.1

Re: collision detection in blisks

Meysam_Ghorbani — Fri, 11 Dec 2020 09:52:07 GMT

nobody can answer this question ?!!!

Why are the representatives of Autodesk not accountable ???

Re: collision detection in blisks

Meysam_Ghorbani — Tue, 22 Dec 2020 16:42:32 GMT

?????

Re: collision detection in blisks

tesatoolsmaker — Tue, 22 Dec 2020 17:03:40 GMT

it is interesting ! I have this question too.

Re: collision detection in blisks

Meysam_Ghorbani — Tue, 05 Jan 2021 15:37:58 GMT

?????

Re: collision detection in blisks

Jonathan_Artiss19 — Tue, 05 Jan 2021 16:01:32 GMT

@Meysam_Ghorbani

Autodesk employees do not fully monitor the public forums, this is here for users to help users.

If you have found an issue or a bug, you should be sending this directly to Autodesk by form of a support case. You can do this directly through your Autodesk account.

There is no better way to get a direct response from the support staff of Autodesk

Re: collision detection in blisks

Meysam_Ghorbani — Tue, 05 Jan 2021 18:02:04 GMT

Thank you

Re: collision detection in blisks

mark.cundy — Thu, 07 Jan 2021 08:56:56 GMT

Taking the second point first. With the Automatic tool axis, the target tool axis will be with elevation 20 degrees pointing towards the z axis, but this will be adjusted as necessary to avoid collisions (not necessarily keeping the elevation constant). The toolpath calculation will stop early at a point it is unable to safely machine a segment. You can however use tool axis limits to restrict how the collision avoidance moves the toolaxis.

The Automatic tool axis is the advisable option to use for blisks as it is designed to give a safe toolpath.

On the first point. The blisk tool axis (or anything other than automatic) will (by design) give a complete toolpath with no effort of safety (unless automatic collision avoidance is used). It is intended to be used as a last resort (when the automatic tool axis fails to completely machine the part) to provide a starting point for manual tool axis editing.

Re: collision detection in blisks

Meysam_Ghorbani — Sun, 10 Jan 2021 15:10:34 GMT

You did not give us a clear answer!

We need to lock the titillating axis in the Blisks strategy .for example 20 degree .Without any movement , Absolutely fixed.
Is it possible in PowerMill or not?

Re: collision detection in blisks

mark.cundy — Mon, 11 Jan 2021 08:49:22 GMT

You can use tool axis limits (with the same upper and lower elevation and 'move toolaxis') to fix the elevation angle, though it appears this may result in incomplete toolpaths.

Re: collision detection in blisks

Anonymous — Fri, 15 Jan 2021 18:50:08 GMT

Note that the Automatic collision avoidance option controls the collision of the tool and the shank and holder.

And with the automatic method, you are not able to control the collision of the holder.

https://www.youtube.com/watch?v=cmLK-f9P_lQ

Re: collision detection in blisks

Meysam_Ghorbani — Sun, 17 Jan 2021 06:27:42 GMT

That was a good tip, thank you.
But with these settings, toolpath' order is disrupted
We also need the B axis to be locked at an angle.
And make no move.

Re: collision detection in blisks

Anonymous — Mon, 18 Jan 2021 14:57:33 GMT

مسلما تولپس کمی دچار مشکل خواهد شد ولی نه در این حدی که شما نشون دادید. به تنظیمات خود توجه کنید و یا اینکه سطوح مشکل داره. در مورد ثابت ماندن زاویه این اتفاق می افته. در کلیپی که ارسال کردم مشخصا کاملا ثابت موند. در کل این مود کمی مشکل داره و باید حلش کنند

Re: collision detection in blisks

Meysam_Ghorbani — Wed, 20 Jan 2021 08:30:56 GMT

ممنونم 🙏🏻🌹