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Help making part

12 REPLIES 12
Reply
Message 1 of 13
Anonymous
345 Views, 12 Replies

Help making part

Could somebody please give me some guidelines on how to approximate this
part. I don't need all the detail, simply the sheet metal domed reflector
without holes, tabs, etc. etc.

http://i265.photobucket.com/albums/ii214/ivanveg/311.jpg


I'm learning. I've played around with Loft, Shell etc. and cannot quite
approximate this part. For simplicity I am trying to draw the domed surface
as a portion of a sphere although it is probably parabolic.

Don't draw it for me, just outline the steps that you would take.

Thanks,
Ivan Vegvary
12 REPLIES 12
Message 2 of 13
Anonymous
in reply to: Anonymous

Revolve the parabolic/spherical shape, then add/extrude the socket. Shell.

--

Peer
Iv2009 Sp2/Iv2010 Sp1
Lenovo ThinkStation S10
Intel Core 2 Quad - 2.66GHZ
4GB RAM - WinXPSp3/32Bit
Samsung SyncMaster 244T 24" 1920 x 1200
nVidia Quadro FX1700 - 512MB 6.14.11.8246
3Dconnexion SpaceNavigator 3.6.7
Message 3 of 13
Anonymous
in reply to: Anonymous

Hi Peer,
Thanks for your reply.
I think I understand what you are saying. The socket is no problem. My
problem is how to get the flat platform upon which the socket is mounted.
Would the platform be part of the profile prior to the 'revolve' ? Or, do
I cut cut the shell after the the 'revolve' and add the platform? That's
what is giving me the problem.

Thanks again,
Ivan Vegvary


"Peer Hoffmann" <**ph@ambu.com**> wrote in message
news:6296943@discussion.autodesk.com...
Revolve the parabolic/spherical shape, then add/extrude the socket. Shell.

--

Peer
Iv2009 Sp2/Iv2010 Sp1
Lenovo ThinkStation S10
Intel Core 2 Quad - 2.66GHZ
4GB RAM - WinXPSp3/32Bit
Samsung SyncMaster 244T 24" 1920 x 1200
nVidia Quadro FX1700 - 512MB 6.14.11.8246
3Dconnexion SpaceNavigator 3.6.7
Message 4 of 13
delineryan
in reply to: Anonymous

Ivan,

You really have to think about how you would make this part in real life.

1 - Draw the dome shape
2 - Pierce the holes (mounting holes and socket holes)
3 - Blank the part

The same goes for Inventor, you create the shape, then add the holes. For a drawn part you don't often need a precise flat pattern due to the blanking operation.

Cheers,

Ryan
Please mark this response as "Accept as Solution" if it answers your question.
Message 5 of 13
Anonymous
in reply to: Anonymous

I have a video that I'll post here in a few moments.

--
Dennis Jeffrey, Autodesk Inventor Certified Expert
Autodesk Manufacturing Implementation Certified Expert.
Instructor/Author/Sr. App Engr. Tel. (260) 399-6615
http://teknigroup.com
Message 6 of 13
Anonymous
in reply to: Anonymous

http://teknigroup.com/Videos/InvDiscussions/55/55.html
--
Dennis Jeffrey, Autodesk Inventor Certified Expert
Autodesk Manufacturing Implementation Certified Expert.
Instructor/Author/Sr. App Engr. Tel. (260) 399-6615
http://teknigroup.com
Message 7 of 13
Anonymous
in reply to: Anonymous

Off the top of my head here's how I'd approach it

-Model the dome as a complete, solid sphere by revolving a half-sphere 360
degrees
-Model the flange, also as a revolve
-Chop the sphere to get rid of everything below the flange
-Chop the sphere again above the flange to create the flat for mounting the
socket
-Add fillets as appropriate to the top of the part
-Shell the part to the thickness of the flange, removing the bottom face.
The flange will be preserved, becasue it's the same thickness as the shell

I had to model the part to make sure my flow was good, so here's a
screencap. In my version I used a single shared sketch for all the
different extrusions. That's just something I do a lot; individual sketches
for each feature work fine as well.

Now that I've done it, I see that I could have saved a couple steps by just
sketching the upper dome and flange together, and revolving them with
nothing below the flange. The browser would be a bit cleaner that way, but
it's not a huge deal. This way has the advantage of being very easy and
quick to sketch.

Cheers,
Walt
Message 8 of 13
Anonymous
in reply to: Anonymous

Thank you so much for the direction and the video! Very much appreciated.
Quite instructional. I will keep your company in mind and recommend your
site for training.

Ivan Vegvary

"Dennis Jeffrey" wrote in message
news:6297356@discussion.autodesk.com...
http://teknigroup.com/Videos/InvDiscussions/55/55.html
--
Dennis Jeffrey, Autodesk Inventor Certified Expert
Autodesk Manufacturing Implementation Certified Expert.
Instructor/Author/Sr. App Engr. Tel. (260) 399-6615
http://teknigroup.com
Message 9 of 13
Anonymous
in reply to: Anonymous

Walt,
Thank you for your instructions. I followed them with success!!!

Ivan Vegvary

"Walt Jaquith" wrote in message
news:6297403@discussion.autodesk.com...
Off the top of my head here's how I'd approach it

-Model the dome as a complete, solid sphere by revolving a half-sphere 360
degrees
-Model the flange, also as a revolve
-Chop the sphere to get rid of everything below the flange
-Chop the sphere again above the flange to create the flat for mounting the
socket
-Add fillets as appropriate to the top of the part
-Shell the part to the thickness of the flange, removing the bottom face.
The flange will be preserved, becasue it's the same thickness as the shell

I had to model the part to make sure my flow was good, so here's a
screencap. In my version I used a single shared sketch for all the
different extrusions. That's just something I do a lot; individual sketches
for each feature work fine as well.

Now that I've done it, I see that I could have saved a couple steps by just
sketching the upper dome and flange together, and revolving them with
nothing below the flange. The browser would be a bit cleaner that way, but
it's not a huge deal. This way has the advantage of being very easy and
quick to sketch.

Cheers,
Walt
Message 10 of 13
Anonymous
in reply to: Anonymous

Dennis

I see you have made this with all large radius' on one side and all small on the other with no regard to inside vs outside.

T
Message 11 of 13
Anonymous
in reply to: Anonymous

Yes. I knocked this together simply to show a technique. Good catch.... 🙂
--
Dennis Jeffrey, Autodesk Inventor Certified Expert
Autodesk Manufacturing Implementation Certified Expert.
Instructor/Author/Sr. App Engr. Tel. (260) 399-6615
http://teknigroup.com
Message 12 of 13
Anonymous
in reply to: Anonymous

Here's the correct part - 2010
--
Dennis Jeffrey, Autodesk Inventor Certified Expert
Autodesk Manufacturing Implementation Certified Expert.
Instructor/Author/Sr. App Engr. Tel. (260) 399-6615
http://teknigroup.com
Message 13 of 13
Anonymous
in reply to: Anonymous

Hi Ivan

Sorry for taking so long - I've been preoccupied.

Here's my solution (Iv2009).

Roll down the EOP marker.

--

Peer
Iv2009 Sp2/Iv2010 Sp1
Lenovo ThinkStation S10
Intel Core 2 Quad - 2.66GHZ
4GB RAM - WinXPSp3/32Bit
Samsung SyncMaster 244T 24" 1920 x 1200
nVidia Quadro FX1700 - 512MB 6.14.11.8246
3Dconnexion SpaceNavigator 3.6.7

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