SOLIDWORKS - Mold Tools Part 1 - Draft Analysis and Scale

[@beitel21]

great video Robert.. complete beginner in solidworks but not 3-d modeling so your videos are very helpful to me in explaining these prompts

[@kandasamyrajan]

It is an excellent explanation. Thank you.

[@mariaaquino906]

when I click ok on my draft analysis, the color disappear :(

[@nardaoeletronica]

very good, thank you.

[@AttosGarcia]

Thanks for the vid Robert. Good explanation. Simple and right to the point. I like your vid cause you focus on the molding-desing stuff and not on the part drafting. Some other vids I have seen spend too much time on drafting the part and leave too little time to explain the basics of the mold design stuff. Thanks again.

[@expandGK-lr1up]

hello sir there is yellow draft region at parting line so is it acceptable?

[@goengineer]

With this model there is a thin yellow line around the outside. this is an artifact of the faceted round face, and it will not have an actual effect on the model. In reality it really depends on the geometry of the part, though generally no yellow would not be acceptable.

[@expandGK-lr1up]

@@goengineer Thanks for your reply

[@jigsawz3438]

how do you deal with screwdriver handles that was revolved to be made and has weird shapes without any holes?

[@goengineer]

Hi jigsawz, Even for more complex shapes you would want to run Draft Analysis to see where draft or undercuts exist. From there, especially for undercuts, changes to the model would be required in order to make the model fit for molding.

[@123kkambiz]

How do you decide about shrinkage percentage of material. IS there any book or site which gives the shrinkage of material in mold making. Thank you for the information. It is very helpful for beginners like me. clear explanation upto the point.

[@goengineer]

Hi 123kkambiz, The most important thing to know about shrinkage in injection molding is that it exists. As s starting point you might look at this overview from Santa Clara University (www.dc.engr.scu.edu/cmdoc/dg_doc/develop/process/physics/b3500001.htm). This shows some of the theory behind shrinkage. More practically if you are now designing a product you would want to consult with the company that will be doing your injection molding for specifics on where they see shrinkage and how to adjust your design to accommodate for it. There are also analysis programs like SOLIDWORKS Plastics that allow for you as the designer to simulate injection molding of your design to see what the potential shrinkage might be. You can read more about that type of software here (www.goengineer.com/products/solidworks-plastics/ ).

[@123kkambiz]

Thank you very much for the information. Thanks a lot for quick reply.

[@mouhamed126]

Thank you :)

[@JaapGrootveld]

Tanks.

[@masif3604]

nice