I'm wanting to model something rather unusual. It's simple and complex at the same time. I've already got the most important part to make it modeled, and I can toss the others off quickly (they're just sticks at different scales), so it will be easy--I can handle tedious work if it's making something I enjoy.
But I don't want to waste a whole day putting it together if the program can't handle it. Can Inventor handle something like this? http://www.frc.ri.cmu.edu/users/hpm/project.archiv
I'd only make it to six levels of branching, so 243 end fingers. It'll look much like the 5th image up from the bottom of the page, but I'll be putting the fingers on a joint that is rather more complex than a ball-and-socket: 11 moving parts.
So in total it will have . . . 2,673 + 243 + 891 + 81 + 297 + 27 + 99 + 9 + 33 + 3 + 11 + 1 = 4,368 movable parts.
So in total it will have 4,368 movable parts.
What is your purpose for having the parts movable?
If this is simply artistic sculpture you want you can simplify by grounding the parts.
I see no discussion of motion control.
I want to be able to reposition the fingers to make them look like they're grasping objects, or just put them into interesting poses.
I am going to ground the trunk-stem. These fractal hands are going to be placed on the ends of articulated arms in another assembly, which are in turn going to be attached to a robot body.
No motion control. I've just been selecting the smaller assemblies inside the larger assemblies and repositioning them one at a time. Since they're constrained, everything up the chain from the repositioned assembly follows to where they should.
I'm stuck right now. I've had all the different scales of components modeled for at least a week, but when I start putting them together and testing it, there is a major problem. For some reason, when two or three parent-assembly files that have different names, but are otherwise clones of each other, are placed together in a larger assembly file, the daugher-assemblies mirror one another's movents even though they're in completely different parent-assemblies.
Why is this happening, and is there anyway I can fix it? I need these assemblies-in-assemblies-in-assemblies . . . to be like matryoshka-dolls: a change at one scale in one doll won't affect other dolls of the same scale that are inside different parents.
Depends on how you created them (don't use Windows Exporer to copy/rename).
Also - they will need to be set to Flexible in the main assembly (but it sounds like you already did that).
You don't list any system hardware spec's, a decent spec'd machine should be able to handle it. I wouldn't want to try it on a Core 2 duo machine with 2Gb of memory and an integrated graphics card.
I copy/renamed them in Inventor from the get-go.
Just to make sure there's no misunderstanding: the daugher-assemblies do share the same name between parents. Inside the smallest scale parent-assembly (1/16th), there are three daughter-assemblies: 1, 2, and 3. Their actual names are much longer and more descriptive than that, but the numbers on the ends tell them apart.
1, 2, and 3 packaged inside Parent A shouldn't, if everything was working right, affect changes to 1, 2, and 3 inside Parent B when A and B are both in a larger assembly, correct?
4GB RAM, 2.1 GHz processor.
This hiccup is happening when I'm mating the 1/16th scale assemblies to the 1/8th scale assemblies. There's not that many parts at this level. It's not having difficulty processing the changes when I move parts; I don't think it could be that.
What can I do? Can the program even do this?
Most likely the only way to get a definitive answer is to have an experienced person take a look at the assembly.
Log into access your profile, ask and answer questions, share ideas and more. Haven't signed up yet? Register