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Drafting, Rotational Paterns and Garter spring


New member
Hello Friends, I have problems in Pro/E I request you please guide me,


1.Rotational Blend: In rotational blend, we know blend sections are rotated about the Y-axis, up to a maximum of 120degrees and each section is sketched individually and aligned using the co-ordinate system of the section. But I am unble to understand the limit 120 degrees .

2. In Tweak Draft we need to give draft angle which is -30 to +30 degrees angle. My question is we can add or remove material even increasing draft angle more than 30 degree( theriotical and analytical). whey this limit is so important. Is there is any specific reasons to this limit.

3. How to design Garter Spring, can any one guide me.

Thank you




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