... to 10MB in case you need to upload larger STL files. Attachments on this forum are stored as a BLOB in the database (Binary Large Object) which is not ideal but it seems to be working fine in practice. Fortunately the donations fund is happily covering the web costs at present. regards, Martin. posted: 3 Jan 2016 13:03 from: Martin Wynne Hi Andy, This is Templot's native DXF export (3D setting), viewed in eDrawings: (This is the 1:7.5 crossing.) 2_030750_010000000.png It doesn't seem to be possible to import a DXF into MeshLab? It's now about 15 years since I wrote the DXF export function in Templot, and things have obviously moved on. How would I go about implementing an export for 3-D printing files? There seems to be a bewildering array of file formats to choose from, and a lack of good documentation about their internal structure (unless I'm missing the obvious -- I found this: http://mech.fsv.cvut.cz/~dr/papers/Lisbon04/ ...