AnsweredAssumed Answered

Mold line dimensions in Sheet Metal drawings.....

Question asked by Jeff Davis on Aug 17, 2011

Hello,

This is a work around for creating Simi parametric Mold Line Dimensions for a flat pattern drawing. (This does not work with "K" factors but does for Bend deduction)

 

1. Using ordinate dimensions that have broken alignment and hidden dimension lines, I place the dimension along with the bend note tag.

2. Depending on location I turn on the bend note tag leader line. ( my bend note file has the <bend-radius> tag commented out, I add it back when a part has multiple radius.)

Center of bend.JPG

3. This should be all I need but alas I have old school people I need to appease, so here comes the lame part. Lame because the dimension itself is parametric but the method is not.

 

4. To add Mold lines, add a limit tolerance of half your bend deduction value. So far this can't be linked to an equation. You can enter it as math in the tolerance field i.e. (.162/2) and it will calculate it when you exit the dimension properties.

Mold lines-2.JPGMold lines-1.JPG

 

5. Caution!!! because the limit values work fine for Vertical Ordinate Dimensions but have to be inverted for the Horizontal ones.

 

Mold lines-3.JPG

6. To do this type a negative # in the positive field and the positive sign in the negative field. (Lame I know!)

Mold lines-5.JPGMold lines-4.JPG

 

Let me reiterate that I'm no longer using this method because I've finally convinced the shop that the center of bend is our new standard.

 

From the trenches,

Jeff

Outcomes