looking for autodesk Inventor guru need help

[eloid]

hello looking for a autodesk Inventor guru, have a igus e chain drawing downloaded from there web site.. try to figure out how to make motion with it as a assembly file... have some issues with it.

[tlharris]

I took a quick look at the Igus site... there are quite a lot of products listed there.
1) Which product are you working with?
2) Which version of Inventor? Are you trying to do a Dynamic Simulation, or just animate a component?

[eloid]

Originally Posted by tlharris I took a quick look at the Igus site... there are quite a lot of products listed there. 1) Which product are you working with? 2) Which version of Inventor? Are you trying to do a Dynamic Simulation, or just animate a component?

hello
working with ver 8 inventor, I was try to model / animate the e chain in my assebly drawing....
I was using there classic e4/0 r77 series product

part number 77-10-100-0
http://www.igus.com/igus/wsearch2_i.asp

[Rube]

I'm pretty sure that you can not have dynamic movement within an assembly in an assembly. In other words the links would each have to be put in the final assembly individually.
That does seem a little silly though, maybe I just haven't found the setting.

[eloid]

Originally Posted by Rube I'm pretty sure that you can not have dynamic movement within an assembly in an assembly. In other words the links would each have to be put in the final assembly individually. That does seem a little silly though, maybe I just haven't found the setting.

so to understand you, because im new to inventor, you basically have to
place one link in your assembly drawing add addtional links as needed
build the chain etc ....then ground the one end etc.. for movement?

I think im have problems with the file as you described.... i think there a option to down indivuals parts ....have to explore it more...

[Rube]

Originally Posted by eloid so to understand you, because im new to inventor, you basically have to place one link in your assembly drawing add addtional links as needed build the chain etc ....then ground the one end etc.. for movement? I think im have problems with the file as you described.... i think there a option to down indivuals parts ....have to explore it more...

Yes that is correct (it is how I have always done movable assemblies in other larger assemblies). If you open the chain assembly on its own, can you make it move like you are expecting? If they didn't have movable constraints on it in the first place, no matter what you do it won't move in your assembly.

Also, be careful when you say "...ground the one end...". Because if that fixed end of the chain is on another movable part, like a router gantry, and you "ground" the link, you will not be able to move the gantry. Your assembly probably already has some other part, like a base or table, already grounded, so the chian end should only be contrained to the component it is mounted too, but NOT neccessarily grounded. Does that make sense?

HMMMM...writing that I just thought of something. I'm going to do some experiments and if I find other than what I posted, I'll let you know.

[tlharris]

To be perfectly honest, I switched to Inventor at release 2008 - I don't know very much about the capabilities of v8.

Unfortunately, I use 2010 Pro, and there's no good way to save backward-compatible files, but here's how I'd do it:

1) I find the best success with STP files, which give you the whole assembly. Throw away what you don't need.
2) In this case, you only need 2 parts - one 'outer' plate, and one 'joining' plate. Create an individual link assembly using 2 of each of these. (4 occurences total)
3) Create an echain assembly, with the appropriate number of link assemblies. Ground the first one. Each additional link is constrained axially to the last one, and then face-to-face to keep them in line.
4) Insert the echain assembly into your router assembly. Make sure it's tagged FLEXIBLE (or it won't articulate the way you need it to)
5) Constrain the echain fixed end as required.
6) Constrain the echain movable (gantry) end to the gantry as required.

Your assembly should now move properly.

[Rube]

Originally Posted by tlharris ...Make sure it's tagged FLEXIBLE (or it won't articulate the way you need it to)...

Well...that's what I was missing. I knew there had to be a way to do it, but honestly didn't look hard enough. goes to show ya, you can ALWAYS learn something. I've been using Inventor since version ONE! Just self taught though.

[tlharris]

Right on..... glad it worked!

[eloid]

Originally Posted by tlharris To be perfectly honest, I switched to Inventor at release 2008 - I don't know very much about the capabilities of v8. Unfortunately, I use 2010 Pro, and there's no good way to save backward-compatible files, but here's how I'd do it: 1) I find the best success with STP files, which give you the whole assembly. Throw away what you don't need. 2) In this case, you only need 2 parts - one 'outer' plate, and one 'joining' plate. Create an individual link assembly using 2 of each of these. (4 occurences total) 3) Create an echain assembly, with the appropriate number of link assemblies. Ground the first one. Each additional link is constrained axially to the last one, and then face-to-face to keep them in line. 4) Insert the echain assembly into your router assembly. Make sure it's tagged FLEXIBLE (or it won't articulate the way you need it to) 5) Constrain the echain fixed end as required. 6) Constrain the echain movable (gantry) end to the gantry as required. Your assembly should now move properly.

Im going to have to try this,,, over the holidays... soooooo..
if i have questions ..i will post them....

thanks for now.. i like i said im new to the enviroment so i have play with
it to fully understand it.

I also herd that you can get fre version of inventor 10, if your a stundent... is it any different then the pro version?

[eloid]

attached is a single link of the igus link... the question i have, the drawing is
a general shape ...doesnt include a stop face, is the way to make a constrate
without a face or edge ie tell it to bend to this angle ...the model from the web site does have the full detail of the stop blocks...

so there are issues constraining the bend? without modifing the model?
compete part number which is 77-10-100-0
http://igus.kimweb.de/index.asp?la=e...nr=77.10.100.0

is there way to wing it?

[eloid]

tlharris / Rube

i was hoping you can comment on my newest problem?