I am just starting in Molding design, for some reason I can not get this to work , I tried automatic parting surface and this one I created manually but still does not work,
I would appreciate any help.
Alex,.. here are two manual ways I'd address it..
..(what was wierd.. I had multiple post.. had to delete them?)
Thank you very much Paul,
I spent almost 5 hours on this but could not figure it out.
I found couple of resources online for mold design ,do you know any good resources ( videos or ebooks)?
Alex.. glad it helps.. for manual stuff, just get the the simple faces done first (as you started out doing).. and look for common boundaries and/also create helper surfaces or curves to bridge those boundaries to make as clean the shut off surface as possible... and btw,.. the last manual radiate surface created from a parting line... imho.. it would be a reference only... I prefer the earlier knitted but,.. the manual radiate can work well when the transitions are smoother.. or, in this case use only faces (copy 0) which are clean.
What Paul shown in creating the parting surface is correct, but your basic parting line creation is not correct.
If you split your core & cavity with that split line, the part will not come out of the cavity (it's an undercut)
More than that, your part need to modify few places and change the draft to make it work as a proper mold
See the pictures below
I guess I have to learn about actual possibilities of injection molding before starting the design. I just can't imaging how that split line will create an undercut. I am going to find some online tutorials and attack this problem again tomorrow.
You may not have set it to 0 degrees in the line of draw hence undercut partline?
Anyway the thing is you will find you will probably will be using a lot more surfaces than you imagined or tutorials showed when in the real world.
TBH it chucks out a load of junk often. As Paul alluded your aim is nice smooth surfaces which are tangent so you have to take things into your own hands.
Anyway, undercuts - say it was intentional because it's a soft TPE part
No imagination is required to see how it creates an undercut. Use draft check...
All those purple & blue surfaces are drafted to be on the opposite side of the tool from what you did with your split.
Heck...just look at it in a cross-section.
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