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FW: Full rounds on drafted surfaces...

kenlane
1-Newbie

FW: Full rounds on drafted surfaces...

How do you do full rounds on drafted surfaces ?...WF2 (M110)



Regards,

Ken Lane (Designer)


GENERAL ELECTRIC LIGHTING SYSTEMS
( https://secure.ge-lightingsystems.com <https: secure.ge-lightingsystems.com="/> )
3010 Spartanburg Highway
East Flat Rock, NC 28726
Tel: (828) 693-2173
Fax: (828) 693-2184
-



3 REPLIES 3

This would require a blend, but even if you can easily put them on the
model, are you sure you want to do that to the mold maker?

Perhaps the largest radius that would fit at the top would be the most
cost effective solution.

Bob Frindt




"Lane, Ken \(GE Consumer & Industrial, consultant\)" <->
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02/10/2006 08:50 AM
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"Lane, Ken \(GE Consumer & Industrial, consultant\)" <->


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Subject
[model] FW: Full rounds on drafted surfaces...






How do you do full rounds on drafted surfaces ?...WF2 (M110)



Regards,
Ken Lane (Designer)
GENERAL ELECTRIC LIGHTING SYSTEMS
(https://secure.ge-lightingsystems.com)
3010 Spartanburg Highway
East Flat Rock, NC 28726
Tel: (828) 693-2173
Fax: (828) 693-2184
-


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You can, it'll be tough to do, and will take some time.

Since the thickness varies the draft, the rounds you want to create will
have to be of a variable radius, (am I seeing it right?). If such is
the case I would start constructing some datum curves at the ends of
where the rounds are going to be going and start "wireframing" some
entities to used to drive surfaces. Get the surfaces in, and start
working out how to make cuts, or solids, and go from there...

This is just a simple guess as to how to do it, yes it can be done but,
it will take some experimenting to find a reasonable method to do it, I
don't think it is a quick click away.

So... the question begs... do you really need a true full round? It
looks like the ribs are supporting a boss, a simple constant round
through the area may be good enough (just make it small to start, and
tweak up in size until it is as close to a full round as permissible).
You could try a variable radius round and even get closer by allowing
the radius to increase linearly along the edge.

Erik Peterson
Sr. Product Engineer
dgschaefer
21-Topaz II
(To:kenlane)

Not true ,you should be able to pick both edges and do a full round just
like straight walls.  Not sure about the sequence of clicks in WF2, but
I've does it with 2001.  In fact, if you add a large enough round on the
two cross edges in between, you can create a full round that will run
from the top of the rib all the way to the bottom, transitioning across
the other rounds.

As a former mold designer, I suspect your mold maker won't care as he's
going to either CNC the cavity or CNC the EDAM electrode that will burn
the cavity.  Either way, the computer does all the math.  If this is the
worst problem the mold maker has to deal with in your part, he'll be
ecstatic.

Doug Schaefer
--
Doug Schaefer | Experienced Mechanical Design Engineer
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