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Valued Mentor
BLHDrafting
Posts: 350
Registered: ‎10-12-2012
Message 1 of 2 (134 Views)
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CONTROLLING POSITION REPS

134 Views, 1 Replies
11-12-2013 04:37 PM

I'll start off by admitting that I don't know enough about Pos Reps. At the same time I haven't found a workable solution for my problem.

 

Following are 4 pictures. The first 3 show the Pos Reps where I drive the hydraulic ram from closed to 1/4 extended, then next to 1/2 extended, the next to 3/4 extended and finally to a fully extended ram. It is the 4th picture that shows where my problem is. The Pos Rep change from 3/4 extended to fully extended somehow allows for the frame/ram to snap over centre. I have checked the match and am sure that the ram/frame should extend fine without snapping over centre. I'm thinking that I need to place an angle constraint in there somehere but can't figure out where. Any clues? FYI I have many other items visibility off to clear up the view.

 

POS1.png

 

 

 

POS2.png

 

 

 

POS3.png

 

 

 

POS4.png

Brendan Henderson

Web www.blh.com.au
Twitter @BLHDrafting

Windows 7 x64 -64 GB Ram, Intel Xeon E5-1620 @ 3.6 GHz
ATI FirePro V7800 2 GB, 180 GB SSD & 1 TB HDD, Inv R2013 PDS Premium SP2 Update 3 (Build 200), Vault 2013 Workgroup Update 2 (Build 17.2.9.0)
Valued Mentor
BLHDrafting
Posts: 350
Registered: ‎10-12-2012
Message 2 of 2 (116 Views)

Re: CONTROLLING POSITION REPS

11-12-2013 08:13 PM in reply to: BLHDrafting

I fixed it, but it still makes no sense. I put it into the troublesome Pos Rep, Suppressed a constraint to a ram end, moved the ram end (pivoting on the other end constraint), moved the frame so it is in the correctish position and then unsuppressed the ram constraint. It snapped into position fine. Changing Pos Reps and it behaves correctly.

Brendan Henderson

Web www.blh.com.au
Twitter @BLHDrafting

Windows 7 x64 -64 GB Ram, Intel Xeon E5-1620 @ 3.6 GHz
ATI FirePro V7800 2 GB, 180 GB SSD & 1 TB HDD, Inv R2013 PDS Premium SP2 Update 3 (Build 200), Vault 2013 Workgroup Update 2 (Build 17.2.9.0)

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