Sheet metal style for corrugated fiberboard

[kmckenney]

I had good success making flat patterns for corrugated fiberboard (cardboard commonly used in packaging). I am posting the sheet metal settings here because I didn't find them anywhere else.

This forumla comes from Inventor Reference Guide > Work Environment > Styles and Style Libraries > Work with styles > Linear:
    Unfolded length = (inner Bend Radius + KFactor*Thickness)*(Bend Angle)
where bend angle is in radians.

For corrugated_fiberboard, let inner Bend Radius = 0 and let KFactor = 1 (no stretch on outside, inside compresses).

Setup "corrugated fiberboard" sheet metal style in the Style Editor:
from a sheet metal part, ribbon > Manage > Style Editor
> Left pane, Sheet Metal Unfold, Default_KFactor > New > Name: corrugated_fiberboard_KFactor
  > Unfold Method: Linear, KFactor Value: 1 ul
> Left pane, Sheet Metal Rule > Default > New > Name: corrugated_fiberboard
  > Sheet tab > Unfold Rule: corrugated_fiberboard_KFactor
     For thickness, refer to http://en.wikipedia.org/wiki/Corrugated_fiberboard#Manufacture_of_corrugated_board > Standard US Corrugated Flutes
  > Bend tab > Bend Radius: .0001
> Save

Before you save Styles to Style Library, make sure your Style Library is Read-Write.  Close project files and then from Projects:
  Use Style Library = Read-Write

To save a style:
  Ribbon > Manage tab > Styles and Standards panel > Save icon > click "Yes to All", OK
Changes made to a style library are not available in other documents until the current Autodesk Inventor session closes and a new session is reopened.

To make a fiberboard mock up, print a 1:1 scale drawing, contact cement drawing to fiberboard, cut, fold, and hot glue.

[PaulMunford]

Great stuff!

[scottmoyse]

you should post back to this again, with the words "Solution is the original post" then we can mark it as Accept As Solution for you. Great work & thanks for sharing this with the community.

[kmckenney · Accepted solution]

Solution is the original post.

[Mike686]

hi' i've reproduce the setting you listed here and i still get and outside radius

what i'm trying to acheive, maybe you can tell me if it's impossible or what but i want the folded model to have square looking bend, that mean having the minimal outside radius, even none if its possible