Journey to Open Sauce 2026

HEAR US ROAR.

R.O.A.R.

Rex’s Open Assistive Resources

We build open-source assistive tech that gives people a voice. At Open Sauce 2026 you can get hands-on with T-Rex Talker V3, our AAC communication devices that adapt to each user’s abilities — buttons, touch screens, sip-and-puff, and soon eye tracking. Then take on the Head To Head Rubber Chicken Challenge, our hands-on communication-device trainer. It’s all open source. Come build with us.

We’re at Open Sauce — booth FS.219

A triple booth. Come find us in the Fiesta area — the map below shows how to get there from the main aisle.

Show floor map — path from Main to booth FS.219 in the Fiesta area — Map of the walk from “Main” to **FS.219**, near the Fiesta area.

R.O.A.R. booth setup on-site at Open Sauce — FS.219 260024 — The booth on-site — two blue-covered tables, T-Rex banner, R.O.A.R. panel, rubber chickens on the fence. *I wish I’d remember to take photos after I finish setting up… oh yeah, I’m too tired.*

Fresh from the workshop — the booth is real

Before we hauled it to San Mateo: metal parts landed from SendCutSend, the Sip-N-Puff dropped into its orange T-Rex enclosure, and the whole booth came together.

Complete R.O.A.R. Rubber Chicken Challenge booth — assembled, wired, and ready — The complete booth — T-Rex head badge, R.O.A.R. banner, monitor, Sip-N-Puff in its orange T-Rex enclosure, and the base engraved *“Thank you Prusa · SendCutSend”*.

The metal booth assembled bare — Booth assembled — laser-cut aluminum shelves before the electronics went in. *“One unmet need at a time.”*

SendCutSend box opened — raw laser-cut parts — SendCutSend delivery arrives — raw laser-cut parts still in the shipping box.

Sip-N-Puff V1.2 board next to its orange 3D-printed enclosure with T-Rex + chicken — Sip-N-Puff V1.2 populated + its orange 3D-printed enclosure with the T-Rex-and-chicken emboss.

Three rubber chickens standing by for the Challenge — Three rubber chickens standing by — the props for the Head-to-Head Challenge.

Also arriving with us

Bringing the new PCBs.

The full set of production prototype boards landed on June 30 — V3 Stim main, processor + Nonverbal daughter stack, Sip-N-Puff V1.2, and the shared SEESAW daughter. We’re bringing them to Open Sauce along with the booth so you can see the new hardware in person.

See the boards →

What we’re bringing

The devices we’ve built, the open hardware behind them, the trainer game, and what’s coming next.

The T-Rex Talker family — finished builds, four colorways

Eight-button color board — picture-based communication

In use: a child building first associations

Fully open hardware — OLED, rotary encoder, audio, battery

The Head To Head Rubber Chicken Challenge — our trainer game

Coming soon — the next build, in development

Everything we make is open source.

Build it yourself on GitHub