From Prototype to First Serve

From Prototype to First Serve

EVT-2 Baseline Completed

In January, we completed the baseline validation of the EVT-2 prototype for Volos.

The goal at this stage was not to showcase complex features. Instead, we focused on confirming whether Volos had the core foundation for real training tests: connecting through the Volosophy app, confirming device status, running basic controls, and delivering stable ball feeds.

This Month’s Focus

  • EVT-2 was our baseline engineering validation stage.

  • We focused on three core questions:

  • Can the Volosophy app connect clearly?

  • Can Volos feed reliably?

  • What real issues appear during repeated use?

Key Progress

EVT-2 prototype baseline validation completed
Core feeding ability, continuous operation, and basic machine stability were validated in the first test phase.

Basic Volosophy app connection flow completed
The app can search for nearby Volos devices, connect to the machine, and show basic connection status.

Basic feeding control validated
Start, pause, and stop controls were implemented in the first interaction flow, allowing the machine response to be checked before training. This also marked a small but exciting milestone: we began practicing with our own ball machine.

  • Volos confirmed a top ball speed higher than all competitor machines we could find.The prototype also validated its ability to support high-speed feeding tests.

  • Key issues were identified. Testing revealed ball-feeding jams, unstable entry at extreme angles, and potential stability risks with the high-speed serving wheels on Volos. These findings were carried into the next prototype iteration.


What We Learned

EVT-2 confirmed that Volos is not just about “being able to feed a ball.” It needs to stay stable during repeated training.

Top speed is only one part of the product. Direction stability, rhythm, feeding path, and long-run reliability matter just as much.

What’s Next

The next stage will focus on feeding stability, jam reduction, ball-path consistency, and high-speed mechanical reliability, moving Volos from “baseline functional” toward “ready for continuous training tests.”


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Volosophy is an tennis training system combining high-performance hardware and AI native software to help players train smarter—anytime, anywhere.

© 2026 Volosophy AI. All rights reserved.

Volosophy is an tennis training system combining high-performance hardware and AI native software to help players train smarter—anytime, anywhere.

© 2026 Volosophy AI. All rights reserved.

© 2026 Volosophy AI. All rights reserved.