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solidworks blocks rotation of pieces in assemblies

  • Thread starter Thread starter Albertazzi88
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Albertazzi88

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Hello everyone, I have a problem, for my thesis I found myself having to build the 3d model of a lunar rover.
I assembled suspensions, wheels, chassis and everything else, so that the wheels can rotate around their axis and arms that connect them to the chassis to be able to rotate around the chassis pin.
I then built a plot, and imported curves built on purpose with matlab for trajectories that must follow 4 points of the chassis and 4 points of the arms-wheel.
the problem is that when I made a further assembled to put together soil, rover and trajectories, the wheels of the rover no longer turn, and neither arms!
How is it possible? ?
I tried to see if sw added some bond... but I didn't find any new ones!
But it is essential that everything moves and then can create animation, and be able to enter the mating-path constraints!
Can anyone help me?
 
if you import a set as sub-assieme into another together the constraints that had remained free you no longer see them because what you are inserting for solidworks is a unique block and therefore rigid . If you want to recover the freedom you had in the original axieme you have to make sure that your set is a flexible sub-assieme ( once inserted in the final axieme - dx - property - in the lower right you find attention that sometimes this can create problems of stability of the axieme where you inserted the subaxieme.
I hope I've been helpful
 
Thank you very much for the quick answer.
I did as you told me and it worked, but now I have another problem, that in the analysis of the movement, after putting a linear motor to move the rover, and 4 rotating motors to the wheels to turn them (obviously only as a graphic effect, because the main motor is the linear one), just starting the calculation of the animation gives me the following message:
"placement of part 2^rover complete-1 suspended:
impossible to calculate the mass, due to lack of solid geometry.
the mass can be customized in the properties of the part to overcome the use of solid geometry. "
calculates the first 2 seconds of animation and then does not go any further.
Given that I don't understand what the mass has to do (I see that I don't use gravity), I tried to manually set the mass from the feature tree, but nothing has changed. I looked in the help, but he doesn't say anything about it. . .
What can I do?
 
Albertazzi88 said:
Thank you very much for the quick answer.
I did as you told me and it worked, but now I have another problem, that in the analysis of the movement, after putting a linear motor to move the rover, and 4 rotating motors to the wheels to turn them (obviously only as a graphic effect, because the main motor is the linear one), just starting the calculation of the animation gives me the following message:
"placement of part 2^rover complete-1 suspended:
impossible to calculate the mass, due to lack of solid geometry.
the mass can be customized in the properties of the part to overcome the use of solid geometry. "
calculates the first 2 seconds of animation and then does not go any further.
Given that I don't understand what the mass has to do (I see that I don't use gravity), I tried to manually set the mass from the feature tree, but nothing has changed. I looked in the help, but he doesn't say anything about it. . .
What can I do?
Click to expand...
hi! check on the online guide but I think you can't do movement studies in even flexible sub-assistances. idem for inventor. same problem. cinematics must reside in the same level of together
 
So what should I do, change only the first set of the rover and build from there the ground and all the trajectories? the problem is that even the wheels are subaxiemi, idem for chassis, twist bars and everything else!
It seems strange that you can't do it!
 
meccanicamg said:
hi! check on the online guide but I think you can't do movement studies in even flexible sub-assistances. idem for inventor. same problem. cinematics must reside in the same level of together
Click to expand...
I do not use the motion studies, but if it were really so they are unusable and can be thrown directly into the toilet and they only serve to have some extra iron icons. You see I have to do a unique set to make a motion simulation... :cool:
 
hi to all I have a problem with autocad 2009 on view I am going out of my mind I ask your help, the problem is a mistake that gives me while I use it and it is this: unhandled access violation writing 0xdbf2000 exception at 772f9b2bh I am getting crazy you could help me? ? ? ?
 
davide510 said:
hi to all I have a problem with autocad 2009 on view I am going out of my mind I ask your help, the problem is a mistake that gives me while I use it and it is this: unhandled access violation writing 0xdbf2000 exception at 772f9b2bh I am getting crazy you could help me? ? ? ?
Click to expand...
But did you realize where you are? Does this seem like the autocad forum?? and it seems like a discussion about your question?
as the first message is not bad, congratulations. .
then from new users it would be mandatory to read the regulation that explains many things. and before posting so at home it would be appropriate to take a tour around to learn about the forum, all its sections and the way to behave (which is then equal to that of all the forums of the network).
also a short presentation would be appreciated.. read the rules and try again.
Thank you.

greetings
Mar
 
Look, there's no need to be so rude, you should be banished right away from this forum because this is rude.
 
Albertazzi88 said:
I doubt it's so...someone can help me solve this problem? ? ?
Click to expand...
I checked this morning. together with some scattered parts and a dozen flexible assemblies. for the study of movement everything works correctly and exchange the cinematic grandesses.

It should be checked whether it works with physical simulations or if the limit is defined in this type of study.

try to create a new motion study, put the engines again and what you need and try again. Sometimes it happens a click in the wrong place and it blocks everything.
 
One last little help, guys. . .I managed to make an animation (although sometimes the wheels "scattano" forward, jumping a few cm, I don't know why). ..someone can tell me how to put a fixed camera on the forward model?
I would like to make a small video showing what sees the camera mounted on the rover while it advances... it is possible? and make it rotate while the vehicle goes on, always fixed on the turret? please, I have to finish it today!!!!!!
 
Albertazzi88 said:
...no suggestion? ?
Click to expand...
go to the help voice of motion/technical studies based on the camera
I never did, but I gave (I... :rolleyes:) a quick last one at the help and I think if you want to simultaneously model and camera you can do. If you don't need to frame parts of the rover from the camera, it shouldn't be a problem. At least I would.
 
Albertazzi88 said:
...I managed to make an animation (although every now and then the wheels "scattano" forward, jumping a few cm, I don't know why). ..someone can tell me how to put a fixed camera on the forward model?
I would like to make a small video showing what sees the camera mounted on the rover while it advances... it is possible? and make it rotate while the vehicle goes on, always fixed on the turret
Click to expand...
...I who never managed to do similar things, I pray to see the video and especially (if possible) for files to study :d

What do you have? 2009 2010 base, professional, ...
 

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