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V9 Build 1104 Gripper rotation bugged (#4971)
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H.L.  
#1 Posted : Friday, January 31, 2014 1:24:16 AM(UTC)
H.L.

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Joined: 1/30/2014(UTC)
Posts: 4
or i'm doing wrong.

When rotating a solid with the gripper the object is rotated *and* displaced. This effect increases with distance from the 0,0,0 coordinate.

Also the gripper seems to rotate about 2 times the real rotation.

I can't see the rules for the additional displacement. But the object seems only to move to left/right and up/down, but not in height.

So, if i rotate a cube around 45 the cube will be rotated 45 and displaced. The gripper remains at the original location and is rotated 90.

Makes the gripper unusable. Very sad :( Nice tool!

Any insights?
Holger
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Tim Olson  
#2 Posted : Friday, January 31, 2014 1:38:11 AM(UTC)
Tim Olson

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Checking...
Tim Olson
IMSI Design/Encore
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H.L.  
#3 Posted : Friday, January 31, 2014 2:49:36 AM(UTC)
H.L.

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Joined: 1/30/2014(UTC)
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The prez himself :)

If needed I can provide screenshots or a video clip. The issue is 100% reproducable.

Bye
Holger
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macnavi  
#4 Posted : Friday, January 31, 2014 6:33:50 AM(UTC)
macnavi

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Snapping to a different position only happens with "my" Gripper wen I move the item on the XYZ axles, never when rotating. When it is snapping to a different position than I want, I put my cursor in the distance field and hit enter. What happens if you do the same in the degree field, immediately after you perform a rotate?
My model steam trams at Tramfabriek.nl

Mac OS X El Capitan 10.12.5 - VC Pro v12
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H.L.  
#5 Posted : Friday, January 31, 2014 7:04:07 AM(UTC)
H.L.

Rank: Junior Member

Joined: 1/30/2014(UTC)
Posts: 4
Hi

Please check the attached zipp'ed AVI

[ATTACH]4908[/ATTACH]

Holger
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billbedford  
#6 Posted : Saturday, February 1, 2014 4:39:10 AM(UTC)
billbedford

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Joined: 2/19/2007(UTC)
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Do you have any other entities that are hidden or on hidden layers?
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H.L.  
#7 Posted : Saturday, February 1, 2014 7:08:13 AM(UTC)
H.L.

Rank: Junior Member

Joined: 1/30/2014(UTC)
Posts: 4
Hi

The video start with a freshly opened ViaCad. There are only two entities created, the two cubes you can see on the screen.

Bye
Holger
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ZeroLengthCurve  
#8 Posted : Sunday, February 2, 2014 11:59:17 AM(UTC)
ZeroLengthCurve

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Short idea:

It maybe be related to having built the blads in an array rather than from separately, copied splines. IIRC, translating with Gripper or by Translate any geometry that is radially/by-array-produced could end up expanding outward (not in scale, but in separation from connectedness) when moved away from it's base origin.

Going on memory here...


Longer story...

In 11-2012, I modeled a 5-bladed propeller, hub, and shaft. I did it (less the shaft) in its own file. When I imported it, it was at the 0,0,0 location. When I translated it to where I wanted, the blades all flung out far from the hub.

Undoing restored the objects to origin. IIRC, retranslation to origin from the displaced location also reversed the "blade explosion". It was no use to try to build the blades and hub in an 'approximate location since any translation would be the same as before. IIRC, moving behaved as translation. Been a while.

I'll have to dig into the file to see what I can recall in memory about the matter. I've largely gotten around it by jsut sticking with one hull model the past year+. But, at one point I did change models last year, and now, it's been so long that I cannot recall what I did to get around the problem. It maybe be related to having built the blads in an array rather than from separately, copied splines.

(BTW, I built my own blades because some programs out there appareently have copyrights or patent on the digital production of blades derived from numbers a user inputs into the program. Maybe I misread the site. But, I'd rather (for my purposes) have an approximate and reasonable-looking proxy of a prop and blades than be limited to a feature-specific app that I might end up seeing limit my use of it.)
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