- Open the file and list its layers: which hold the part, which hold notes, dimensions and bend lines
- Delete everything that is not cut geometry, or move it off the cut layers
- Remove duplicate lines, stray points and tiny fragments
- Check the result in the DXF checker: the right number of parts, the right sizes, nothing left out that should be cut
What a cut file should hold
SendCutSend's checklist for its own customers is a good model: no dimensions, annotations, construction geometry or drawing borders; text converted to outlines; no open contours; stray points, duplicate lines, empty objects and text areas removed; the part at 1:1 in mm or inches. Its AutoCAD guide asks for anything that is not cut on separate layers from the cut and bend geometry.
Junk by type
| In the drawing | Problem at the machine | What Zorocut does |
|---|---|---|
| Dimensions and leaders | Exploded, their arrows and extension lines become cut paths | Skips DIMENSION and LEADER entities; ignores layers whose name contains DIM or ANNO |
| Notes (TEXT, MTEXT) | Not cut as written; exploded text is cut as holes | Skips TEXT and MTEXT and counts them; ignores layers whose name contains TEXT |
| Frame and title block | A closed frame on the cut layer becomes one huge part, with your parts as its holes | Ignores layers whose name contains TITLE or BORDER; a frame on any other layer is read as a part |
| Bend lines | Cut straight through the part | Ignores layers whose name contains BEND |
| Hidden and centre lines | Cut as slots | Ignores layers whose name contains HIDDEN or CENTER; it does not read linetypes |
| Hatches | Fill patterns | Skips HATCH |
| Points | Nothing, or an unwanted pierce | Skips POINT and counts it |
| Construction lines, viewports, DEFPOINTS | Stray paths | Ignores layers whose name contains CONSTR, VIEWPORT or DEFPOINTS |
The names are matched anywhere in the layer name, in any case: CENTERLINE and DIMS are ignored, but a layer called FRAME or CENTRE is cut. Hidden lines drawn on layer 0 with a dashed linetype are cut too, because Zorocut reads layer names, not linetypes.
Bend lines from flat patterns
- Fusion's flat-pattern export always includes the bend lines; outer profiles, interior profiles, bend centre lines, bend extent lines and text each go on their own layer.
- SolidWorks makes bend lines optional in the flat-pattern export and draws them dashed.
- CypNest can identify bend lines from SolidWorks drawings and shorten them automatically — useful when the shop marks them instead of cutting them.
- For a part that is only cut, leave them out. To mark bend positions, put them on a layer named MARK: a layer called BEND_MARK is still ignored, because its name contains BEND.
Duplicates, stray points and fragments
- Duplicate lines are cut twice. SheetCAM's manual says overlapping copies normally confuse it, and its import can delete all but one; CypCut removes duplicates on import too. Zorocut removes exact copies on the same layer (ends within 0.005 mm) and says how many. A copy on another layer, or a line that only partly overlaps, stays: it shows up as a “more than two lines meet” warning or as an open contour.
- Tiny graphics from stray clicks cause abnormal positions in machining, CypCut's manual warns — that is what its Remove Trivial and CypNest's Delete Invisible are for. Zorocut drops specks smaller than 0.2 mm both ways and reports them; POINT entities are skipped.
- Open fragments longer than that stay open contours and block the export of that geometry: delete them in CAD.
- Text that is a note goes, text that is a part number may be a mark — see text in a DXF.
Choosing the layers
Zorocut picks layers by name. Names on the list above are left out; a name containing MARK, ETCH or SCRIBE becomes marking, ENGRAV becomes engraving, and every other layer is cut. There is no per-layer switch in the app, so when the guess is wrong, rename or delete the layer in CAD; the pre-cut check lists every layer it ignored. At the machine, CypCut does the same job with layer mapping: BOCHU's tutorial maps an unwanted text layer to layer 0, which is not processed.
Sumber
- SendCutSend, How to export a file from AutoCAD
- SendCutSend, How to export a DXF from Autodesk Fusion
- SendCutSend, DXF files in SolidWorks
- Friendess, CypCut Laser Cutting Control System User Manual v6.5
- BOCHU, CypNest User Manual (2024V3)
- SheetCam TNG Setup and Operation Manual v3.1.17
- BOCHU tutorial, Map DXF Layer to CypCut Layer
Buntu dalam perkara lain? Tanyalah — pasukan Zorocut menjawab setiap soalan.
Ajukan soalanPetua nesting dan sebut harga dalam peti masuk anda
Kira-kira satu e-mel sebulan: petua nesting dan sebut harga, penyelesaian bagi masalah yang ditanya orang dalam komuniti, dan berita Zorocut.
