More Joint Questions

[Im1in260m]

I have to attach a copy so you can see what I am talking about. On the Gantry Foot I joined the bolts washer and bearings. Then I joined the Gantry leg. Then I did a slider joint to the aluminum angle. But you can see it does not work as anticipated. I get a warning that there are conflicts with the rigid joint between the foot and the leg. Maybe I just started out all wrong. But the bearings are joined in the Foot components, because they are part of the foot. The Cap screws holding the leg to the foot are joined in the foot. Perhaps I should have done that joint at the project level, but I didn't want to redo the joins and I didn't want to start over. It would be great if I could just drag those icons in the browser, but trying things like that previously led to disaster.

I still can't get those slots right. I tried following Trippylighting's answer but I couldn't get loft to work. I need more research on that because I am not sure how Loft is the answer.

I would appreciate one of you masters taking a look at this and telling me what I am doing wrong.

Thank you.

[brianrepp]

@Im1in260m I pinged one of our experts on this, stay tuned!

[kgrunawalt]

Hi,

I've looked at your model and think I can help. You have two issues: the rigid joint conflict and the pin-slot issue.

The rigid joint at the end of the time line is in conflict with other rigid joints that you've added. I does not seem to be needed. I might be missing something. The Rigid11 joins the leg to the foot rigidly. The nuts are patterned bodies in a single component that moves as a unit, so they just need the single rigid joint (rigid2) to join them to the leg. Does something move that shouldn't if you delete the conflicting rigid joint at the end? I don't see it.

The pin-slot issue can be resolved, but there is something odd about those joints that may be a bug. I both of them by:

1. Selecting the pin part first (the bolt) and the slot second  (as you had done)
2. Make the "slide" direction custom (choose custom and then select the edge of the slot to define slide direction)
3. Verify by clicking the animate/play button
4. Ok

This gets the pin-slots moving in the right direction, but I see that the time-line pin-slot features have a yellow warning. This probably means that the slide direction is not associative and that if you change the slot geometry, the pin-slot joint direction will not adjust. I'll log an issue for this. I have not been able to reproduce it in a simple assembly.

Aside from this warning and the possible lack of associativity, the motion is correct after the re-creation. If you edit the new pin-slots, the custom slide ui is not visible. I think this is related to the warning. We need to look at this.

I hope this helps. Let me know how it goes.

Katrin

[TrippyLighting]

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@Im1in260m wrote:

Trippylighting's answer but I couldn't get loft to work.

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Uhhhmmm What ?

In what thread was my response to a joint problem related to loft ?

😉

[Im1in260m]

Thank you both so much for your help. I am ready to attack this again and will make the changes. I hate that I only have time to play with this on weekends.