IMSI Design · CADsymbols
DIN, ISO, EN, ANSI and ASME parts, symbols and 3D models for mechanical, architectural, electrical and plant design. Choose a size, and the part is drawn on request and handed to you as DXF, DWG, SVG, SAT or any of thirteen formats. It runs in the browser; there is nothing to install.
The point of it
The catalogue does not store drawings, so it is not limited to the format they were saved in. It stores the part — the geometry and the rules — and writes whatever you ask for at the moment you ask. The same flange becomes a DXF for the drafting office, a SAT solid for the modeller, and an SVG for the manual, from one click each.
Why there are 30 million
A library of 30 million drawings would not fit on a disk and nobody could search it. CADsymbols holds parametric families and the size tables that go with them. DIN 912 is one entry in the catalogue and 857 real socket-head screws; ask for M20 × 80 and the kernel draws that screw, to the standard, on request.
Which is why the same welding-neck flange below is not one drawing stretched three ways. The proportions are recalculated at every size, and the bolt circle gains holes as the flange grows — 40 entities at DN 300, 364 at DN 4000. A picture library cannot do that.
Drawn by the CADsymbols kernel and rendered from its coordinate output, which is why they follow your light or dark theme. The dimensions are measured from that output, not typed in here.
The portal
Three panes and no manual. Filter by discipline on the left, scan the families in the middle, and set the size and take the file on the right — with the drawing redrawn from the kernel every time you change anything.
What it does
By standard number or by name, in English or German. "DIN 625", "flange" and "Sechskantschraube" all land where you expect.
Taken from each family's own tables, so what you are offered is exactly what the part accepts — not a list that fails on selection.
Plan, elevation and section for drafting; solid models for 3D work. Same catalogue entry, same size table.
DXF, DWG, DWF and SVG for vector work, SAT and VRML for solids, and six image formats when a drawing has to go in a document.
DIN, ISO and EN alongside ANSI, ASME, UNC, UNF and NPT — separate families drawn to their own standard, not converted.
No CAD application is involved in producing the file. The kernel runs on our side and hands you the result.
Compatibility
Downloads open in AutoCAD and AutoCAD LT, TurboCAD, DoubleCAD, IntelliCAD, SolidWorks, Solid Edge, Inventor, CATIA, Creo, VectorWorks, MegaCAD, HiCAD and anything else that imports DXF, DWG or SAT — which is very nearly everything.
| Use | Formats |
|---|---|
| 2D drafting | DXF, DWG, DWF, SVG |
| 3D solids | SAT (ACIS), VRML, DXF 3D |
| Documents and images | PNG, JPG, TIF, BMP, TGA, PCX |
| Raw geometry | XML — coordinates, layers, ISO 128 line roles |
Direct insertion — placing a part into a running CAD session without a file — is a feature of the desktop edition and is not in the browser yet. Downloading and importing works today, in every format above.
How it works
By standard, by name, or by browsing the libraries — in English or German.
Pick from the family's own size table. The drawing on screen is redrawn by the kernel each time you change it.
Choose a format and it is generated on request, at the size on screen. Typical DXF: well under a second.
Try it
Search every family, change sizes, read the drawings — for seven days, with no card and no password. Downloading needs a licence, because the file is the thing being sold: $199.99 for the first year and $99.99 a year after that.