True-shape is not a virtue. It is a waste decision.
Every vendor writes “up to 50% media”. The truth depends on whether the piece is a rectangle with 3 mm bleed or an angled kit panel. This is the point where you stop believing the slide and price your own roll.
Updated 1 September 2026. NestPrintCut editorial — the team that builds RolCut. Scores follow the public method. We do not run a 200-roll lab we have not run.
What the program sees when you say “shape”
- JPEG with no alpha — a rectangle. End of discussion, whatever the brochure says.
- PNG with transparency — a mask. The engine may follow alpha or a traced vector.
- SVG / DXF / a spot in a PDF — a real contour. True-shape is allowed to exist.
When a rectangle is correct
Wallpaper, roll-ups, backlit, sized canvas, PVC panels. Bleed is rectangular; the client takes a rectangle. True-shape on that roll is CPU and nothing else.
When shape pays for the license
Contour stickers, letters, moto kits, irregular DTF / UV. A bounding box leaves L- and C-shaped air. On a roll that air is metres. Griffin, TruFit, Prep-it and eCut exist because someone priced that roll. RolCut puts the switch on the job: alpha / SVG / DXF go to shape; JPEG and PDF-in stay a frame.
| Situation | Gap vs box | Pay for Griffin? |
|---|---|---|
| 40× canvas 60×80 | 0–3% | No |
| Mixed wallpaper widths | 2–6% (rotation and gutter) | No |
| 200 contour stickers | 10–30% | Sometimes eCut / RolCut is enough |
| Moto kit, angles, 30 parts | 15–40% | Yes, if that is the bread |
Questions
Can a RIP do true-shape?
Some can, weaker than a dedicated engine. CalderaRIP nests better than “squares”, but shops still add PrimeCenter or Griffin when shape is the product.
Does RolCut always nest on the shape?
No. JPEG, PDF (first-page raster, TrimBox) and files without alpha stay rectangles. PNG with alpha, SVG and DXF go to silhouette. The switch is on the job.