Linear Coupler Mate
Linear Coupler Mate
(OP)
Hi All,
I have a model with a vertically sliding door and a counterweight. The door is mated to its guides to constrain it in the horizontal plane and it's vertical sliding motion is min/max limit distance mate from one of the stops. The counterweight is also constrained in the horizontal plane by its guides. For the vertical constraint, I moved the counterweight to its "door closed" position and then moved the door to its "door closed" position. Then I created a linear coupler relationship between the door and counterweight. This works great until I close and reopen the assembly. When I re-open, the door is closed but the counterweight is in an arbitrary vertical location. The linear coupler mate is active from that arbitrary position thereby making the counterweight's movement wildly incorrect. Clearly I am not using the linear coupler relationship correctly but I don't know what to do. Any thoughts?
Thanks!
Steris
I have a model with a vertically sliding door and a counterweight. The door is mated to its guides to constrain it in the horizontal plane and it's vertical sliding motion is min/max limit distance mate from one of the stops. The counterweight is also constrained in the horizontal plane by its guides. For the vertical constraint, I moved the counterweight to its "door closed" position and then moved the door to its "door closed" position. Then I created a linear coupler relationship between the door and counterweight. This works great until I close and reopen the assembly. When I re-open, the door is closed but the counterweight is in an arbitrary vertical location. The linear coupler mate is active from that arbitrary position thereby making the counterweight's movement wildly incorrect. Clearly I am not using the linear coupler relationship correctly but I don't know what to do. Any thoughts?
Thanks!
Steris






RE: Linear Coupler Mate
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Hardie "Crashj" Johnson
SW 2011 SP 2.0
HP Pavillion Elite HPE
W7 Pro, Nvidia Quaddro FX580
RE: Linear Coupler Mate
RE: Linear Coupler Mate
For your motion: Create an new part with a plane 45 degrees from one of the primary planes. Insert that part into your assembly with a coincident mate between the slanted plane of the new part and the origin of the assembly. Then add mates between the new part and the door so that the new part moves sideways with the door. The mate between the slanted part and the assembly origin should cause the new part to move up and down as the door moves side to side. Once that works the counterweight can be attached to the new part.
Eric
RE: Linear Coupler Mate
When you go to the advanced mates and click on the distance mate, the first text box right there is for the default distance value. After clicking that, the max and min boxes become active below. Maybe if you set the default for the door at the minimum value and that of the counterweight at max (or vice versa) it'll work?