Can Someone Please Explain the Logic of DesignX Alignment?

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micro
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Can Someone Please Explain the Logic of DesignX Alignment?

Post by micro » Mon Dec 05, 2016 4:34 pm

I cant seem to get repeatable results from the Interactive Alignment in Design X. Maybe I'm too used to Solidworks working with the 3 default planes but I'm trying to keep an open mind. Can someone please explain how the sequence works? Step1" selecting a plane seems to work as expected. Selecting a vector places the origin as expected piercing the selected vector, thought The X and Y vectors are usually pointing in some arbitrary direction. Then selecting a point I think will give the proper orientation of X and Y sends everything out again. What am i missing?

Thanks.

ScanHD
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Re: Can Someone Please Explain the Logic of DesignX Alignment?

Post by ScanHD » Sun Jul 28, 2019 7:43 am

Try putting the line on the plane. Not piercing it.

It sounds to me like you are not locking down the 3 degrees of movement

3DSean
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Re: Can Someone Please Explain the Logic of DesignX Alignment?

Post by 3DSean » Fri Aug 09, 2019 1:34 am

ScanHD wrote:
Sun Jul 28, 2019 7:43 am
Try putting the line on the plane. Not piercing it.

It sounds to me like you are not locking down the 3 degrees of movement
That's almost exactly the problem. The 3-2-1 alignment throws a lot of users for a loop in my experience as you're picking objects to lock down six degrees of freedom successively - the biggest error is choosing a vector that's parallel (or nearly parallel) to the normal vector of the plane. One piece of advice: hover over the entity selection boxes (Plane, Vector, Point) and see what you can select for that box. This type of alignment is most useful when you have 3 perpendicular planes on your scan (or region planes) that intersect where you want your origin to go.

I've found the X-Y-Z option to be more logical for most people, but it almost always requires manually creating reference geometry (including the origin point) so it's a bit slower. Have you tried this option?

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Re: Can Someone Please Explain the Logic of DesignX Alignment?

Post by 3DSean » Fri Aug 09, 2019 1:35 am

Whoops, i just realized ScanHD replied to a 3-year old post. But I'll leave up my response anyway and hope it's useful to someone in the future.

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