Parting Lines Are Really Tricky in Automotive Modelling
Most students have a lot to learn about parting lines. Around the door he went for a 10mm wide parting line. That’s the total width including the surface fillets. This is too wide if truth be told, so as the whole front of my car lifts and hinges forward like the Jag.E-Type. Here he has used a 3mm wide shut line. This is too narrow and after rendering and reducing for the web. you can hardly see it.
Lets Get Real
In real life manufacturers use a variety of widths and shut lines on Commercials, 4 by 4’s and budget priced cars can be 10 -15mm wide. Expensive quality cars will typically have very controlled Parting line widths of 5 -8mm.
Parting Lines Must be Closed Off
the volume of your model must be closed, so that other down-line software will accept the data originating from Alias. Parting lines must have a bottom surface, either generated by the parting line tool or direct modelled using Sq, Rail or Skin surfs.
CNC Milling Machines
Demand that parting lines are closed off, without any gaps, so you should use the Check Model tool to see where any problems lay and then fix all the problems before you model is exported, as a Shell, IGES, STEP file etc.
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Regards
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