Fit my file

Only the joints it finds in the colours set to Cut: the width of straight slots and notches, and the depth of straight fingers and tabs. Everything else stays as the designer drew it: engraving, text, layers and colours. With kerf compensation on, cut outlines also move out by half the kerf so parts keep their size. Positions of slots, lids that rest on top and other sizes not tied to a joint are not changed: check them before cutting.

It is usually on the product page or in the file name. The tool also looks at the joints and suggests the most likely thickness. Files made with CutCatVector generators carry the thickness and the kerf inside, and the tool fills them in.

They look like a joint but could be part of the design: a single step on an edge, or a notch that is as wide as it is deep. They stay as drawn until you switch them on in the preview or in the list.

A joint that meets a curve, sits at more than two levels, or would make the outline cross itself or another line is not changed. Curved and angled slots are not refitted in this version. The list under the preview gives the reason for each one.

With kerf compensation the slot is drawn your material + clearance − kerf, and the laser cuts it to material + clearance. Without compensation the slot is drawn material + clearance, and the kerf already in the file is taken out, for laser software that adds its own kerf offset. Clearance 0 gives a press fit if your kerf is measured right; 0.05 to 0.1 mm gives an easier fit. The list under the preview shows each slot as it was, as drawn now and as cut.

Some designers draw the parts a little bigger and the slots a little narrower to make up for the beam. If you know that kerf, enter it, so the outlines are not compensated twice. If you do not know, leave 0: slots still come out at the width you asked for. Files made with CutCatVector generators, and files saved by Fit My File, fill it in for you.

Lines are cut and filled shapes are engraving. When a file has red lines, only red lines are cut at first, and blue or other lines are kept as score or decoration. Shapes without a fill colour count as black fill, as SVG draws them. Change any colour to Cut or Keep under Your file.

Yes. Fit My File writes the new thickness and kerf into the file, and reads them first when you upload it again, so a file refitted from 3 to 4 mm opens as drawn for 4 mm.

Files without a size in mm or inches are read at 96 px per inch, like Inkscape and LightBurn. A file from Illustrator may use 72: switch File units in Advanced settings. The size of your file is shown above the downloads.

SVG files with straight joints at any angle, from LightBurn, Inkscape, Illustrator, CorelDRAW, xTool Creative Space and our generators. Curved or angled slots, and slots with rounded corners at the entry, are left as drawn. DXF is not read yet: open it in LightBurn or Inkscape and save it as SVG. Linked copies (clones) and text are left as they are, and a DXF download leaves them out.

No. The file is read and refitted on this page, in your browser. It is never sent to a server and is not kept after you close the page.

Yes, for your own cutting: refitting does not change the design's licence. Do not share or resell the refitted file unless the designer's licence allows it.

Switch mm / in next to Thickness. The fields and sizes follow it; the file keeps its own units.