Toastal Relief (Assistive Gua Sha Tool)

Summary
A board designed to sit between your leg and your chair so it sticks out slightly, intended to let you scrape or massage your hand, forearm, leg, or other body part gua sha style using just one hand.

Why the name?
It's shaped like a piece of toast, a slightly mangled, bitten-looking one, which only adds to the charm. The subtitle is meant to signal this is an assistive tool, aimed at people who may not have a free hand or the mobility to hold a scraper while working on another part of their body.

What is gua sha?
Gua sha is an East Asian healing technique where a smooth-edged tool, such as jade, rose quartz, or buffalo horn, is scraped across the skin in firm, single-direction strokes to boost blood flow, ease inflammation, and release tight muscles. Rooted in Traditional Chinese Medicine (TCM), the practice aims to unblock stagnant energy (chi) and often leaves temporary red dots called petechiae from broken capillaries. While modern Western practices like physical therapy use similar instrument-assisted soft tissue mobilization (IASTM) methods like the Graston technique, gua sha is also widely practiced as a gentle, low-pressure facial massage to reduce puffiness and improve circulation. Though generally safe, it can cause temporary bruising or soreness, and initial studies suggest potential relief for issues like neck pain and migraines, though high-quality clinical evidence remains limited.

Project Overview
Gua sha typically takes two hands, one to hold the tool and one to hold still and receive the scrape. That can be difficult if you only have use of one hand, for whatever reason. Toastal Relief is designed to anchor the tool by wedging under your thigh so an edge sticks out, with the idea being you can scrape or massage your hand, forearm, leg, or wherever you can reach without needing a second hand to hold it.

How Toastal Relief is intended to be used
Sit down and slide the board under your thigh, either along the outer or inner side, whichever feels more comfortable, so the working edge sticks out. From there, draw the body part you're working on across the edge at whatever angle and pressure feels comfortable to you. There's also a hole in the middle of the board that forms a handle, so if you'd rather hold it directly, you can grip it that way and use it on your leg or elsewhere. Always go slowly at first and stop if anything feels wrong.

Important limitations
How securely this stays in place will depend on your chair, your body weight, and how you position it. It may not stay put on soft or cushioned seating. Try it out carefully before using it the way you plan to.

Toastal Relief at a glance

• designed for gua sha–style scraping or massage on your hand, forearm, leg, or elsewhere

• intended to let you work with just one hand

• placement under the outer or inner thigh, whichever is more comfortable

• built-in handle hole for direct gripping too

• no moving parts

• meant to work from a normal seated position

• shaped and named with a bit of fun

⚠ LEGAL AND SAFETY NOTICE
NOT A MEDICAL DEVICE: Toastal Relief is an experimental prototype, shared as-is. It has NOT been evaluated, approved, or endorsed by any medical or regulatory body (such as Health Canada or the FDA), and no claims are made about its effectiveness, safety, or suitability for any particular use.

MATERIAL WEAR: inspect the object periodically and discontinue use if it shows any cracks, thinning, or damage.

HYGIENE: as with any 3D printed object, the layer lines in the surface can harbor bacteria if not cleaned properly after use, especially on a tool that contacts skin. Clean it thoroughly after each use, and stop using it if the surface becomes damaged or difficult to clean. Use at your own risk.

STOP IF ISSUES ARISE: if using this causes any pain, irritation, or other health issues, stop immediately.

FIT AND STABILITY VARY: whether and how securely this stays in place depends on your own chair, body, and setup. There is no guarantee of fit or performance for any individual.

CONSULT A PROFESSIONAL: consult with a medical professional, such as your OT or PT, before using this tool, especially if you're considering it as part of a rehabilitation or accessibility plan.

USER IS THE MANUFACTURER: by downloading these files, the user acknowledges they are the manufacturer of the physical object and assumes 100% responsibility for material selection, print settings, fit testing, and safe use. Use is entirely at your own risk.

For complete Terms of Use and liability information, visit: https://www.tryspire3d.com/disclaimer-and-terms-of-use

Print Settings
Printer brand: [fill in]
Rafts: no
Supports: no
Brim: no
Resolution: 0.2mm
Infill: 30% (gyroid)
Wall count: 5
Layer surface and bottom: 5 layers thick
Filament material: PETG
Note: print outer layer first for more accurate measurements

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