Feed hopper drawing package
- Problem
- A hopper job needs a full drawing set and cut files that agree with it; drawing them by hand is slow and starts again for every new size.
- What we solved
- Nine sizes give the seven-sheet drawing set (PDF and CAD) and the four cut files in minutes, all from one geometry, so the sheets and the cut files cannot drift apart.
- Result
- Every cut file is checked automatically before anyone cuts steel: 36 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 whole set redraws as you type the sizes on the drawing, with your shop’s name in the title block.
- Mistakes before the shop floor: panels, transition, spout and flange are worked out together, so mating edges match; sizes that cannot be built are refused in plain words.
- Files ready for the cutter: four DXFs at 1:1, named by drawing number, in millimetres or inches.
How it is checked
- A separate script (Python, ezdxf) reads the cut files and checks every edge, the corner lines, the round edge against π × diameter and each part’s mass: 36 checks on the sample. The script is in every download.
- Tests build and check packages for several sizes in millimetres and inches; the sample on this page is the generator’s own output, byte for byte.
Responsibility
Geometry and fabrication only: plate and welds are not sized for any load. The set needs review by a licensed professional engineer for the intended use.