Low-Cost Tactile Coloring Page Fabrication on a Cutting Machine: Assembly and user experiences of cardstock-layered tangible pictures
Nicole Johnson, Tom Yeh, Ann Cunningham · 2022 · Proceedings of the 24th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS '22) · doi:10.1145/3517428.3551353
Summary
This short paper presents a design inquiry into using a consumer-grade Cricut cutting machine to create tactile pictures and coloring pages by layering cardstock, as a low-cost alternative to traditional tactile image production methods. The technique, developed over three years, draws on the concept of bas-relief sculpture — stacking cut cardstock layers to create images where subjects protrude from a flat surface at different heights. Designs are created as SVG files in Adobe Illustrator, cut on the Cricut machine, and assembled using registration holes on a peg board (borrowed from printmaking alignment techniques) with spray adhesive. The top layer provides the broadest outline of the subject while middle layers add important details. Over 80 designs were created for early learning settings, including animals, coloring pages, mazes, matching activities, and cut-outs, all shared open-source via the BTactile meta-library. The technique addresses a significant gap: common tactile image methods like microcapsule (swell) paper, thermoform, 3D printing, paper embossing, and refreshable pin-matrix devices all involve high acquisition costs ranging from \,400 to over \,000 for equipment, while a Cricut cutting machine costs only \-\ and uses regular cardstock.
Key findings
Each cardstock layered picture costs between \/bin/zsh.14-\/bin/zsh.64 in materials, compared to \.50-\.50 per swell paper image, \/bin/zsh.13-\/bin/zsh.36 for thermoform, and \/bin/zsh.05 for braille embosser paper — putting it in the mid-range for per-unit cost but dramatically lower for equipment acquisition. Production time ranges from approximately 4.5 to 6.5 minutes per picture. The assembly-line production method proved scalable: three people completed 80 pictures (160 paper layers) in one hour. Feedback was gathered through three channels: a picture exchange program that distributed approximately 500 pictures to 55-75 families of K-5 and 3-6 aged blind and low vision children over 7 months via subscription boxes; open-source file sharing through BTactile; and a Tactile Drawing Club with 9 participants (4 blind teachers of the visually impaired) in Colombia and Argentina. Parents reported positive tactile sensation and noted the pictures worked well as coloring guides due to the papercut barriers that guide crayons. The Tactile Drawing Club found the technique valuable for the tactile literacy process, noting that debossed images store better and do not wear down like raised embossed images. Participants valued the ability to deconstruct images by separating unglued layers to understand how they fit together, effectively using layers as stencils.
Relevance
This work addresses a critical accessibility gap: the high cost of tactile image production equipment creates barriers for parents and educators who want to provide tactile learning materials for blind and low vision children at home and in under-resourced settings. Tactile graphicacy — the ability to read and interpret tactile images — is a learned skill that requires substantial practice, and the availability of affordable, varied tactile content is essential for developing this lifelong capability. The technique is particularly valuable because it democratizes production: parents and educators can create tactile content using a consumer craft machine they may already own, without specialized training. The open-source design files shared through BTactile further lower the barrier by removing the need for design skills. However, limitations include the time-intensive manual assembly process, the need for well-ventilated space when using spray adhesive, and the lack of accessibility in the Cricut software itself — a significant irony for a technique aimed at the blind community. Future work comparing this method against established tactile image techniques would strengthen its evidence base.
Tags: tactile graphics · blindness · low vision · early learning · DIY assistive technology · digital fabrication · tactile graphicacy · braille · education accessibility