Parting line creation

[rikonen]

I've got a fairly complex parting line designed and what I did to create it was to use the parting line tool in Solidworks and then I created parting surfaces using those lines. I had to go back and delete some of the surfaces and model new ones as well as extend and trim others to get the geometry I wanted. Now I have all my geometry in all the correct folders nut when I goto do a split it says that my sketch geometry needs to be smaller than my parting line geometry. Well, it is. The original parting line surfaces are much smaller but after extending everything and trimming and knitting everything together the complet parting line surface extends well past my tooling split geometry. Any ideas?

Thanks

 

[Theophilus]

My only guess is that you may have a hole in a seam along your extended/knit surfaces. I'd recommend hiding all geometry except your parting surface. Then try to Extrude Up To Surface with a rectangle resembling your mold base. If it doesn't work, there must be either a hole in your surface or inverted or vertical surfaces (not drafted the proper direction), which produces logical problems. One of those two problems is almost certainly the fault.

Check it and let us know what happens. (Although I'm not sure if I'll have much time today to check back later.)

Jeff Mowry

http://www.industrialdesignhaus.com

Reason trumps all. And awe trumps reason.

 

[rfus]

Jeff is right, inspecting all three surfaces with these extrude up to surface is a good approach. Also try and knit the parting surface to the core, and then try knitting it to the cavity. Did you use the Parting Surfaces feature to create your parting surface? If so, sometimes creating the parting surface yourself with surface tools, and then placing it in the folder, is better when dealing with complex parting lines and can cater to mold design.

RFUS

 

[rikonen]

I don't have the file in front of me to take a closer look it's on my home computer but I used the parting surface feature and then deleted the area's that didn't suit the design and then created surface geometry to fill in the blanks. I did look at it very close for gaps but didn't see any but I'll look again. I can knit the parting line to both the cavity and the core surfaces but I can't use the knit surface to manualy trim a block using the surface either. I should note that I exported the knit surfaces to Keycreator (Cadkey) and was able to trim using the surfaces with zero problems. Between the two packages I use at least I was able to get the job done.