The workbench
Sublimation guides
Practical fixes for the problems that ruin blanks, written from the same research that built our size library. No fluff, no padding: when we have one guide, the shelf says one guide.
Troubleshooting
The white line at the seam
The pale stripe down a finished tumbler has five possible causes: a wrap cut short, a mould mismatch, paper drift, a butt seam, or a design that was never seamless. How to read the line and fix each one.
Read the guideReference
Tumbler wrap size charts
Wrap dimensions for 104 tumbler models across 23 brands, every number source-linked and dated, with gaps stated as gaps rather than guessed.
Open the size libraryTool
Wrap size calculator
Measure your cup, get your wrap: straight cups as circumference plus overlap, tapered cups as a full cone unwrap with the bend angle shown.
Open the calculatorEvery design is one click away on Etsy
Instant download, straight and tapered wraps in the same purchase, and nothing to wait for. The shop has been open since 2023.

