Flat Pattern Angle Dimension Preference

[CPHEngineer]

Do you know if there's a way to have a sheet metal drawing represent the other part of the angle? I have a 45 degree angle, it shows 45 degrees. I want it to say 135 degrees. Is that possible? I can't find a way. I thought, maybe adding an equation or something of 180-<bend angle> or something, but can't get anything to work.

 

[SnowCrash]

If I understand correctly, when you dimension an angle the dimension will align within the two lines. But if you move the cursor outside the lines before you click to set the number in place the angle will change to the complement. Then when you click it stays that way.
"and yet it moves"

--
Hardie "Crashj" Johnson
SW 2008 SP4
Nvidia Quadro FX 1000
AMD Athalon 1.8 GHz 2 Gig RAM

 

[CPHEngineer]

Dimensioning works fine, and yes, as you say. The issue i'm having is: when I make a sheet metal part, and place the sheet metal's "flat pattern" into a drawing, the automatically generated note on the bend line is "bend up 45 degrees, radius .15" Is there a way to get the automatically generated note to say the complimentary angle? Can I get it to say 135 degrees instead of 45? I want it to read the inside angle measurement after bent, not the amount of change from flat.

 

[Updraft]

CPH,

It says "Bend Up 45 degrees" because that is how much you are moving the plate from its flat state. This is the standard by which press brake operators use the information. If you were to say "Bend Up 135 degrees" you would get an overbend.

If you want to show the 135 degree angle I suggest you do so in a formed view. Press brake operators really benefit from having views of the finished part.

- - -Updraft

 

[CPHEngineer]

I guess that's how I have to do it. Our press brake uses the inside finished measured angle when entering into the CNC program. You want a 30 degree bend, you enter the inside finished measured angle of 150. Their program can't change. I put a formed cross-section view to show the final dimensions of the piece. Seems like a waste to have to dimension all the angles too. I hoped I could alter the flat pattern auto-dimensions. If anyone thinks of a way to do that, please let me know.

Thank you everyone for your input.

 

[rcass]

I believe you can override the automatic note. I seem to remember doing this once. Regardless, I always enter a dimension on a formed part view to avoid confusion anyhow. I don't buy that they can't change it in the CNC program, its probably a setup thing and cumbersome to change (possibly many programs involved to go that route) so they tell you they can't. We don't have a CNC press brake but one of our venders may, anyway, our operator works the way Updraft said.