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 28 August 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; the rest 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 and files without alpha stay rectangles. PNG with alpha, SVG and DXF go to silhouette. The switch is on the job.