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approach to plastic part design

sanpol

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Good morning to all,
I'm a designer and I'm just looking at the design with solidworks as my new work assignment concerns plastic products with injection molding. Before now I used rhinoceros, but the design approach and totally different and from what I saw solidworks is much more suitable and possesses unthinkable automatisms with rhino.
Until it comes to square mechanical parts I have no big problems setting the design but with less geometric objects I don't know how to approach. I would kindly like a push in this direction from you who have more experience. Since each project is different from another I would just like to try to understand the method. a first example I would like to submit to you and this bowl that has a descending side. the plant is a perfectly symmetrical oval on the 2 axis and the object is symmetrical compared to the yz plane.
This you see I made it with ease in rhino, but I would like to parameterize it in solidworks to vary sizes, thicknesses and make reinforcement fins and correct sform angles.ciotola.webp.
I thought I would create a sketch on the upper floor for the base oval, then extrude to the correct height and then realize an extruded cut to get the inside compartment... But then? How do I realize the descending edge? I got stuck here.
 
hi, for details with "exthetical" geometries most often use the surfaces. I'll train you like I'll make the bowl. In this case I used a surface only to create the transition zone for the descending area. the version I made the file with is sw14.
 

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hello and thank you for the answer, unfortunately I have version 13, could you please get it back so I'll take a look?
 
Great! Even better!
I'm studying this tonight for good, because there's some passage I need to understand.
Thank you!
 
Look, luca, I've carefully examined the video and I have only one doubt: when you realize the 2 splines on the respective surfaces then create quotas at the end that I did not understand what you reported and what value you entered. I think it's a crucial point, because it's the only point where I lose the parameterization when I change the size of the bowl. The video is a little blurred and so I can't read. Let me know. Thanks again
 
You're right. However when I create the splines on surface I give to the extremes the bond of tangence. to bind completely then add a quota for tangency arrow in order to define the "tension" greater is the sweetest value will be the transition. to add these quotas select the arrow and fix the quota in space. Hi.
 

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