Inventor General Discussion

Inventor General Discussion

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*Expert Elite*
JDMather
Posts: 26,511
Registered: ‎04-20-2006
Message 21 of 48 (532 Views)

Re: Inventor - Engraving on a sphere

09-03-2013 03:24 AM in reply to: 220610

Solution in this document or attach your file here.

http://home.pct.edu/~jmather/SkillsUSA%20University.pdf

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220610
Posts: 22
Registered: ‎12-01-2012
Message 22 of 48 (518 Views)

Re: Inventor - Engraving on a sphere

09-03-2013 04:46 AM in reply to: JDMather

Ok, it partially worked.

I've tried using "adjust" to correct, and chose the starting point, and while it does "stick" them to the surface, it doesn't "correct" their orientation, which should be perpendicular to the surface.

Here's what I mean.

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JDMather
Posts: 26,511
Registered: ‎04-20-2006
Message 23 of 48 (513 Views)

Re: Inventor - Engraving on a sphere

09-03-2013 04:53 AM in reply to: 220610

You also have to set the Direction 1 orientation.

 

But there are other problems - starting with Sketch1 unconstrained.

I recommend going back through your part and constraining the sketches.

 

No 3D sketch needed and you are not ready for 3D sketches.

 

I will come back in a bit and walk you through solution.

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Contributor
220610
Posts: 22
Registered: ‎12-01-2012
Message 24 of 48 (502 Views)

Re: Inventor - Engraving on a sphere

09-03-2013 05:21 AM in reply to: JDMather

Ok, I've repaired the unconstrained parts. I've deleted sketch1 as it was obselete.

This is after constraining, and still the same problem occurs.

I'm not sure what you mean by "You also have to set the Direction 1 orientation.", I thought I did.

 

I'll wait for your reply.

Thanks a lot!

 

P.S.

Not sure how I got so caught up in this tiny problem, as I already did something (which I believed) more complicated, an Uzi SMG with movement constraints and all.

 

*Expert Elite*
JDMather
Posts: 26,511
Registered: ‎04-20-2006
Message 25 of 48 (489 Views)

Re: Inventor - Engraving on a sphere

09-03-2013 06:56 AM in reply to: 220610

220610 wrote:

P.S.

Not sure how I got so caught up in this tiny problem, as I already did something (which I believed) more complicated, an Uzi SMG with movement constraints and all.

 


Unfortunately - I'll wager it was all wrong too.  Time to learn proper Inventor techniques.

 

BTW - you did not set the Direction 1 Orientation.

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JDMather
Posts: 26,511
Registered: ‎04-20-2006
Message 26 of 48 (485 Views)

Re: Inventor - Engraving on a sphere

09-03-2013 07:07 AM in reply to: JDMather

Before I spend a lot of time on this - are you willing to spend the time? Do you want to learn how to model correctly?

 

This angle is not manufacturable and because of the way you dimensioned the arcs are not concentric and therefore the wall thickness is not 5cm. (only those two lines are 5cm)

Strange Angle.PNG

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*Expert Elite*
JDMather
Posts: 26,511
Registered: ‎04-20-2006
Message 27 of 48 (478 Views)

Re: Inventor - Engraving on a sphere

09-03-2013 07:17 AM in reply to: JDMather

Start a new part file.

Set your units to cm if not already set.

 

Create Sketch1 as shown and attach the file here.

 

Sketch1.PNG

Please mark this response as "Accept as Solution" if it answers your question.
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New Member
t22e
Posts: 1
Registered: ‎08-31-2013
Message 28 of 48 (463 Views)

Re: Inventor - Engraving on a sphere

09-03-2013 10:58 AM in reply to: JDMather

I'm willing to learn to do it properly, a good foundation is the most important thing.

You probably guessed it already, but I learned the program by myself and on the move, so that's where my faulty methods are from.

I anticipate our difference in time zones will make delays in our correspondance, so I apologize in advance.

Thank you for doing it.

I'll do everything you sent and will send the files back once it's done.

 

 

Contributor
220610
Posts: 22
Registered: ‎12-01-2012
Message 29 of 48 (449 Views)

Re: Inventor - Engraving on a sphere

09-03-2013 10:00 PM in reply to: JDMather

Hmm... logged me before as guest, nevermind, I'll sort it out later.

 

Ok, so I've done as you said, I think, that's why they're are two files. 

One of them is bound to be what you did (I really hope, otherwise I'm in a bigger hole than I imagined).

Thanks again!

Contributor
kvannj
Posts: 11
Registered: ‎08-01-2013
Message 30 of 48 (438 Views)

Re: Inventor - Engraving on a sphere

09-03-2013 11:44 PM in reply to: 220610

I think he means that you should make only one sketch (in 2D), make a centerline (not construction), and simply draw a normal line and set the dimension to Ø120. When you set a dimension to a centerline, you get the diameter directly and not the radius.

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