Hi everyone
I'm trying to do my first mold (core and cavity), but cannot do it seen I need about 40mm of surface in order to create the "box", but I have this curve here (pic. below) that cannot have a radius beyond 8.42689mm:
![2013-04-16 02_13_10-SolidWorks Premium 2013 - [Moldacao.SLDPRT _].jpg](https://forum.solidworks.com/servlet/JiveServlet/showImage/2-355051-75998/2013-04-16+02_13_10-SolidWorks+Premium+2013+-+%5BMoldacao.SLDPRT+_%5D.jpg)
When the surface distance is incresed that is what happens:
![2013-04-16 02_19_41-SolidWorks Premium 2013 - [Moldacao.SLDPRT _].jpg](https://forum.solidworks.com/servlet/JiveServlet/showImage/2-355051-75999/2013-04-16+02_19_41-SolidWorks+Premium+2013+-+%5BMoldacao.SLDPRT+_%5D.jpg)
How can I create a surface for this piece?
thank you for your time
Diogo,
Welcome to the forums
Are you able to post the file here.
Someone can find a possible solution
John,
Sure
EDIT: On this file, I can get it to work, but when a use "Tooling Split" this error shows up "Cannot knit sheets togheter"
Diogo, see attached.
The solution shown in this video is pretty rough, but I believe it explains why you had the problem with the parting surface.
http://www.youtube.com/watch?feature=player_detailpage&v=X3jlevh7jc4
... unless you need interlocked surfaces, then the whole thing could have been much, much easier and more elegant.
Alin Vargatu,
thank you very much for all the work you done to help me, I'm really greatful for that
Can you just explain how a fillet changed my parting line, and what actualy does the trim surface command (since you create a line and then you have selected the top face of that surface :s, I never worked with surfaces, is a bit messy in my head )
EDIT: How do I sketch on a surface? I need to sketch a line to guide a surface, but its nor workings
1. Trim is for surfaces what cut is for solid bodies. Check the help file on this topic.
2. If the surface is planar, open a 2D Sketch on it. If it is not, you can try to use the sketch on surface tool or to project entities form other sketches on it.
Consider taking a Surface Modeling course.
I didn't got the 1st point, but I'll have a look in help file
2. I cannot sketch on surfaces, only on planes and sketch planes (if its called that way)
Yes, I alredy though in that, but solidworks is a little spoken where I live, never saw a workshop/course about SW in here, unfortunately, and I don't like to upset people when I cannot do something I feel sorry for loosing you time and greatful for help me out
Diogo, not sure how rush this job is for you, but if you do not get answers here until Friday evening, I might be able to find the time to record another video in order to answer some of your questions.
Quite a bit, that would be nice, even after this job run out
In my view those split surfaces for core/cavity using what parting surface command creates are horrible and unnecessary.
On such a simple part I would do the following. Just bang a flat surface/plan at the parting point. Subtract the body from a solid block and just split with the surface/plane. Job done without jigsaw surfaces on core cavity.
The solution shown in this video is pretty rough, but I believe it explains why you had the problem with the parting surface.
http://www.youtube.com/watch?feature=player_detailpage&v=X3jlevh7jc4