Sheet 06 of 15

Contour Flange: a Channel from an Open Sketch

In 5 minutes you'll draw an open profile, turn it into a bent channel with one Contour Flange, and learn which side of your lines the sheet goes.

Part
Contour Flange
Rule
Steel 2mm
Sheet
t 2 · R 2 · K 0.4
Time
5 min
Status
Open
  1. OP 10Watch
  2. OP 20Turn the part
  3. OP 30Build
  4. OP 40Inspect
  5. OP 50Quiz

OP 10Watch

Video in productionBuild along with the steps in OP 30 meanwhile.

OP 20Turn the part

The finished part

Drag to turn, scroll or pinch to zoom. Flat shows the blank before it is bent: the same sheet, the same frame.

OP 30Build it in SolidCraft

3D VIEWPART A OF 8 · mm
FRONT VIEWPART A OF 8 · mm5030
TOP VIEWPART A OF 8 · mm50120
RIGHT VIEWPART A OF 8 · mm12030
UP 90° R2UP 90° R2UP 90° R2UP 90° R2
NOTESPART A OF 8 · mm1. ALL SIZES IN mm, TO THE OUTSIDE OF THE SHEET.2. SHEET 2 mm, INSIDE BEND RADIUS 2 mm, K-FACTOR 0.4:THE SHEET METAL RULE “Steel 2mm”.3. THE FLAT SIZE IS YOURS TO FIND.TITLECONTOUR FLANGESHEET06PARTA OF 8MATERIALSTEEL 2MMTHICKNESS2 mmUNITSmmOPEN CAD ACADEMYSHEET METAL WITH SOLIDCRAFTPROJECTION
Build your part from this drawing: all sizes in mm, to the outside of the sheet.
The finished part
Rule
Steel 2mm
Thickness
2 mm
Bend radius
2 mm
K-factor
0.4

As typed in this exercise

  • Sketch Profile on XZ: line (10, 30) – (0, 30) – (0, 0) – (50, 0) – (50, 30) – (40, 30)
  • Flange: distance 120, flip

Your task

Build this lipped channel from the drawing above.

  1. The rule from the drawing's notes.
  2. New this time: a sketch on XZ with one open chain of five lines, the channel's cross-section (the points are listed under the drawing). Don't close it.
  3. Flange on the five lines: Type says Contour; Distance is the channel's length. The sizes are outside sizes, so the sheet must lie inside the lines: use Flip until the preview shows that.
  4. Flat Pattern: read the Flat size's first number and the Bends.
  5. Change only Flip, and read the Flat size again.

What to write down

  • Box 1: The first number of Flat size with the sheet inside the lines.
  • Box 2: The number of bends.
  • Box 3: The first number of Flat size with the sheet outside the lines.

The second number of the flat size is the Distance, 120 mm, both times. Type the values below and press Check.

OP 40Inspect

Enter what SolidCraft shows you. Each value is checked against SolidCraft's own result, within the tolerance shown. Nothing you type leaves this page.

± 0.05 mm mm

exact

± 0.05 mm mm

Stuck? Compare with the finished part
Download the finished part

Open it in SolidCraft (File › Open) next to yours and compare the timeline, the rule and each feature's sizes: the first one that differs is where yours went wrong.

exercise · Steel 2mm · t 2 · R 2 · K 0.4 · all dimensions in mm, from the blank's left and bottom edges
08.234.681107.39115.590115.5912001200115.59120UP 90° R2UP 90° R2UP 90° R2UP 90° R2

Flat blank 115.593 × 120.000 mm · 4 bends

BendAngleDir.R mmLength mmAllowance mm
190°up21204.398
290°up21204.398
390°up21204.398
490°up21204.398
exercise-noflip · Steel 2mm · t 2 · R 2 · K 0.4 · all dimensions in mm, from the blank's left and bottom edges
010.240.691121.39131.590131.5912001200131.59120DOWN 90° R2DOWN 90° R2DOWN 90° R2DOWN 90° R2

Flat blank 131.593 × 120.000 mm · 4 bends

BendAngleDir.R mmLength mmAllowance mm
190°down21204.398
290°down21204.398
390°down21204.398
490°down21204.398

OP 50Quiz

Q1What kind of sketch does a contour flange use?

Q2What does Distance set in a contour flange?

Q3You tick Flip on a contour flange. What changes?