Rectangular chute bend drawing package
- Problem
- A rectangular chute bend means side walls, a heel and a throat folded at each joint, and two flanges, redrawn for every size so that they still meet.
- What we solved
- Eleven sizes give the seven-sheet drawing set (PDF and CAD) and four cut files in minutes; cheeks, wrappers and flanges come from one geometry, so they fit each other.
- Result
- Every cut file is checked automatically before anyone cuts steel: 26 checks pass on the sample.
Try it yourself
Free, no account. Type your sizes on the drawing and download the set. If anything looks wrong, press “Found a mistake?” on the page and tell us.
What we solved
- Drafting time: the set redraws as you type width, radius, turn and pieces on the drawing.
- Mistakes before the shop floor: the wrapper folds land on the cheek’s joints and the flanges clear the chute; a radius too tight to build is refused.
- Files ready for the cutter: cheek, heel and throat wrappers with fold lines, and the end flange, at 1:1.
How it is checked
- A separate script (Python, ezdxf) checks equal turns at every joint, piece and leg lengths, wrapper folds, flange clearance and hole spacing, and the masses: 26 checks on the sample. The script is in every download.
- Tests run it on six bends, from a 30° mitre to a 180° return, in millimetres and inches.
Responsibility
Geometry and fabrication only: plate, welds and bolts are not sized for load or wear. The set needs review by a licensed professional engineer for the intended use.