FitFlat

Open Import SVG

Sides L × W mm Ø mm r mm

+

Snap mm

Look from

Turn

Display

100%

Grid

Snap

Step mm

Reference image

Load…

60%

Saved views

r mm ± mm

Move along

Turn around

Move X Y Z mm

: start end mm

Turn ° Size %

Offset mm

Snap to decals gap mm

Reference image

Place artwork Width mm Rotation ° Snap Fit

0%4%+ stretch

Working…

Drop a .glb, .obj, .stl, project .json or .svg artwork

Selected decal

Points

Decals

History

Click a step to go back to it. Later steps stay in the list until you change something.

Sizes

The decals are drawn once on this size and moved onto the others along each tube, then unwrapped for each size.

Position on the tube Show size

One file per size

Film

Film Max stretch (%)

Stretch colours, warnings and relief cuts use this limit. The presets are starting points; check your film's data sheet.

Sheet

Width (mm) Height (mm) Gap (mm)

Name labels Sheet outline Mirror pieces Clean curves Roll Registration marks Weeding boxes ± mm

Cut lines are black paths in millimetres on a "cut" layer. Labels and the sheet outline sit on their own layers so you can hide them in the cutter software.

Projects and templates

Kept in this browser on this computer. Download a project or your templates to back them up or move them to another computer.

To keep projects in a folder, use Chrome or Edge. Here they stay in this browser; Download and Open move them as files.

Open file…

A starting point is a frame with the decals you always use on it (for example one bike model). New from it opens a copy as a new, unsaved project, so the starting point itself never changes.

Add from file…

Save a decal as a template with Save to library in the Decal panel (Edit mode). Placing a template works like placing artwork: move over the model, click, adjust, Apply.

FitFlat

Draw in 3D. Export flat. Done.

This is your frameA start frame is loaded so you can try things right away. Drag the background to turn it, right-drag to slide it, scroll to zoom.
Pick your frameFrame from geometry has ready frames for road, gravel and mountain bikes in several sizes. Or paste the geometry chart from a brand's website and it builds that frame.
Or load your own 3D modelGot a 3D scan or a CAD file of the frame? Open loads .glb, .obj and .stl models. Decals drawn on the real shape fit the real tubes.
Draw a decalWith Draw, click points around the area you want to protect and click the first point again to close it. Ready shapes like a rectangle or a pill work too.
Make it fitEdit drags points and moves the whole decal. Mirror puts a copy on the other side of the frame. The Knife splits a decal in two.
Decals: your piecesEvery decal you draw lands in this list. Rename, duplicate, lock or delete it here, or combine two with Union, Subtract and Intersect. History underneath steps back through your changes.
View: how you look at itJump to a fixed side, show a grid or a reference photo, and save views you need again. Stretch colours each decal by how hard the film has to stretch; red means too far.
Sheet: ready to cutAll pieces are laid out flat here. Pick your film and sheet size, then download the SVG or DXF for your cutter.
Need more?This button plays the intro again. The manual has every tool and shortcut.

Manual

Where should it open?

goes all the way round the tube. Film can't lie flat as a closed ring, so the piece gets one seam, a cut where its two edges meet on the frame. Pick a side where it won't show; the dashed line marks it.

Keep it editable?

Editable keeps the original decals inside the result: select the combined piece, pick one of them in the list and change it, and the result follows. Apply turns the result into one ordinary outline.

Don't ask again

Check the model size

Model files often do not say which unit they use. Pick the one that gives the real size; decals, stretch and the cut sheet are all measured from it.

·

Place SVG artwork

Each closed shape becomes an editable decal. Set the real size, then move over the model to see it and click to preview the placement before applying it.

Width (mm) Height (mm) Rotation (°) Keep proportions

Wrap onto the surfaceKeeps true sizes, like film laid on the tube. Best for decals. Project from the viewShines the artwork straight onto the model, so it looks right from this angle but stretches on curves.

Also mirror to the other side of the frame

Frame from geometry

Pick a preset and size, or type the numbers from a geometry chart. Tubes are built from your diameters and tube shape (round, carbon oval or aero), so use this for layout and sizing. Production patterns still need the real frame model.

Preset Size

Tube shape and diameters

Paste a geometry chart

Copy the geometry table from a brand website and paste it here. Rows like stack, reach, head and seat angles, head tube, seat tube, top tube slope, chainstay, BB drop and wheelbase are recognised, with one column per size.

Preset name

Move my decals onto the new frame