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Unread 17-01-2007, 18:57
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Inventor problems

Hey! I keep getting this error:

Missing or invalid axis for defining the sketch coordinate system. Use Edit Sketch Coordinates to define the sketch.

Does anyone know how to fix it? I dont know how to get to the edit sketch coordinates.. It's giving me a lot of problems & doesnt let me put constraints.

Another problem that I'm having is that I can't use the iparts from http://www.cbliss.com/inventor/Parts/index.htm

I got exactly the parts that I need but they wont work. It says that some parts might have to be modified to work in R5 & I don't know what that means. I just started using inventor last week
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Unread 17-01-2007, 19:09
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Re: Inventor problems

I have never heard of this problem. Is this happening right from the initial sketch when you start a new .ipt ? If you can give a little more details maybe I can try recreating the situation and help you correct it. btw, I tried using a few files from that site you gave with no problem
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Unread 17-01-2007, 19:10
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Re: Inventor problems

With the invalid axis problem can you zip and post the file at http://www.mcadforms.com or http://discussion.autodesk.com in the Inventor forum.

For the cbliss parts you do realize that you have to pull down the red EOP (End of Part) marker in the browser?

Last edited by JD Mather : 17-01-2007 at 19:14.
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Unread 17-01-2007, 19:15
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Re: Inventor problems

Quote:
Originally Posted by rohit View Post
Hey! I keep getting this error:

Missing or invalid axis for defining the sketch coordinate system. Use Edit Sketch Coordinates to define the sketch.

Does anyone know how to fix it? I dont know how to get to the edit sketch coordinates.. It's giving me a lot of problems & doesnt let me put constraints.

Another problem that I'm having is that I can't use the iparts from http://www.cbliss.com/inventor/Parts/index.htm

I got exactly the parts that I need but they wont work. It says that some parts might have to be modified to work in R5 & I don't know what that means. I just started using inventor last week
I have no issues using the CBliss parts in Inventor 11. Being modified to work in R5 means that it was changed to work in Inventor 5 (most iParts on his site were made originally in Inventor 6). Personally, I've never seen that error, but if I had to guess, I'd say that you deleted something that a sketch (and accompanying constraints) was sitting on, so it does not know where to put the geometry anymore.

Perhaps more context would be good. What are you attempting to do when you get the error? What did you do when it first started showing up?
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Unread 18-01-2007, 12:06
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Re: Inventor problems

I was able to fix the first problem. I used the heal tool to fix it.

But I am not able to open the files I need. I'm using Inventor 11. So I think that I should be able to open Inventor 6 files?
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Unread 18-01-2007, 12:40
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Re: Inventor problems

I got the file to work. I downloaded bevel gears but when I moved the end part down, the gear got really big. Is there any way to scale in Inventor? I want to make it smaller
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Unread 18-01-2007, 12:58
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Re: Inventor problems

Quote:
Originally Posted by rohit View Post
I got the file to work. I downloaded bevel gears but when I moved the end part down, the gear got really big. Is there any way to scale in Inventor? I want to make it smaller
iPart's geometry is usually controlled by values in an embedded data table. Normally you don't edit the iPart file directly; they are designed to be placed in an assembly and when you place it you will be presented with a dialog to select the part features (called "Keys").

If you want to see what makes an iPart tick, you can right-click the Table at the top of the Model Browser and edit it. There are some good tutorials on iParts around - I like Sean Dotson's stuff.
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Unread 18-01-2007, 13:30
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Re: Inventor problems

Quote:
Originally Posted by rohit View Post
the gear got really big. Is there any way to scale in Inventor? I want to make it smaller
I don't have an example in front of me so my description might be a little off but -
Near the top of the browser there is something like Imported and probably a + symbol. Click on the + to expand. Then you will probably see something like an Excel spreadsheet icon. Right click on that and select table.

or

There will be a list of different "configurations" double click on any one to make it active.

or

Do place component in an assembly file and pick the gear file and it should come up with a list of teeth number, pitch or something like that.

or

Start a new part file and exit sketch.
Select Derived Component and the gear file.
Checkmark Scale and put in your scale factor.
I strongly suggest NOT using this method though as you are changing the proper geometry for that gear.

or

While in your assembly click on the down arrow next to the words Assembly Panel and select Design Accelerator and then Gears. Enter your gear specs and Inventor will build one for you.

or

Come back here and let me know if you would like a step-by-step procedure to create your own gear from scratch and I'll see if I can find the document.
Try one of the other options first.
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Unread 18-01-2007, 13:30
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Re: Inventor problems

Quote:
Originally Posted by rohit View Post
Hey! I keep getting this error:

Missing or invalid axis for defining the sketch coordinate system. Use Edit Sketch Coordinates to define the sketch.

Does anyone know how to fix it? I dont know how to get to the edit sketch coordinates.. It's giving me a lot of problems & doesnt let me put constraints.

Another problem that I'm having is that I can't use the iparts from http://www.cbliss.com/inventor/Parts/index.htm

I got exactly the parts that I need but they wont work. It says that some parts might have to be modified to work in R5 & I don't know what that means. I just started using inventor last week
Many of the models on this site (cbliss.com) have the "End of Part" marker moved to the top of the feature list. I think it has something to do with conserving file space. Anyhow, after opening these files, make sure the "End of Part" marker (the red circle with an X) is at the bottom of the feature list. You just click on the marker and drag it to the bottom. I do this all the time when I want to insert a feature above another in a model. Everything below the marker is ignored and everything above the marker is processed. New features are added just above this marker.
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Unread 18-01-2007, 19:46
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Re: Inventor problems

The derived component tool worked perfectly! Thanks a lot!
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