Channel
@robo_9
On this record: Topic · Growth · Engagement · What this channel posts · Reactions · Posts · Cite this entry
87subscribers
+6 since we began measuring on 7 August 2026
Risers and fallers across the register · movement among entries of Under 1,000.
| Telegram ID | -1002311723612 |
|---|---|
| Type | Channel |
| Username | @robo_9 |
| Created | Between 1 September 2024 and 31 March 2025 — estimated from Telegram’s id allocation, not measured. How this range is calculated. |
| First recorded | 9 August 2026 |
| Last confirmed live | 13 October 2026 |
| Measurements held | 6 |
| Confirmed unchanged | 1 time, most recently 13 October 2026 |
| On Telegram | t.me/robo_9 |
Technology — a classification, not a measurement. An on-box language model (Qwen3.6-35B-A3B-FP8, prompt version 1) read this channel’s own recent posts on 27 September 2026 and assigned it the closest of 31 fixed categories, at 88% confidence. This is a model’s judgement about what the channel is likely to be about, not a fact this register measured the way a subscriber count or a view count is measured — it can be revised on a later pass, and it carries no weight anywhere else on this page. How this classification works, and why it has no browse page of its own yet.
| Measured (UTC) | Subscribers | Change |
|---|---|---|
| 13 Oct 2026, 12:31 | 87 | +2 |
| 3 Oct 2026, 02:37 | 85 | +1 |
| 23 Aug 2026, 07:48 | 84 | +2 |
| 15 Aug 2026, 00:13 | 82 | +1 |
| 9 Aug 2026, 18:31 | 81 | no change |
| 7 Aug 2026, 23:16 | 81 | first reading |
16 posts held, back to 12 March 2026 — the reader has not yet reached the start of this channel’s public history, so older posts may sit further back, unread. Read across 1 page of Telegram’s post history, 20 posts per page.
Nothing published in the last 30 days. ERR and ER are rolling 30-day measures, so there is nothing to compute — we hold 16 posts for this entry, the most recent from 8 August 2026. An engagement rate over an empty window would be a number about nothing.
Measured directly from 6 videos with a duration reading, out of the posts we hold for this channel — not this channel’s whole posting history, only the sample this register has actually read. An exact reading to the second, taken from the post itself rather than from Telegram’s own rounded chrome, so it carries no ≈ mark.
71 reactions across 16 posts, in 4 distinct kinds. The most used accounts for 57.7% of them.
| Reaction | Count | Share | Share, drawn |
|---|---|---|---|
| 🔥 | 41 | 57.7% | |
| 👍 | 17 | 23.9% | |
| ❤ | 9 | 12.7% | |
| 🍾 | 4 | 5.63% |
No sentiment is inferred, and none should be read in. This table is ordered by count and by nothing else. Emoji do not carry stable meaning across languages or communities — 🙏 is thanks in one channel and mourning in another — so we publish which ones were pressed and how often, and pass no judgement on what an audience meant by them.
Precision. Telegram publishes reaction counts per emoji and short-forms each one — 4.34K, 1.2M — so any single kind at or above 1,000 reaches us at three significant figures, and only counts below 1,000 are exact. The shares above are ratios of those figures and carry the same error. This is also why the total here can differ slightly from a reaction total printed elsewhere on the page: both are sums of the same rounded parts, taken over samples with different edges.
Coverage. Reactions were read on 16 of the 16 sampled posts in this sample. Summed by Telegram’s own count on each post — not by adding up the per-emoji breakdown above — those same posts carry 71 reactions in total: the kind of figure the paragraph above means by “a reaction total printed elsewhere on the page”.
Measured over the 16 most recent posts we hold, published 12 March 2026 to 8 August 2026, using the newest reading held for each. Telegram Stars are excluded: they are a payment, not a reaction, and they have their own section.
SO-ARM100/101 Parallel Gripper v0.4.0: first community mod released. Michael Viacheslavov contributed a variant of the gripper for histology slide handling. Changes relative to the base design: — Clamp geometry replaced with long, flat fingers for standard 75×25 mm microscope slides — Clamp spacing and tips sized to engage slide staining dippers/racks — Angled mount for an Arducam OV9281 global-shutter USB camera …
👍2❤1
Which filament actually holds up in a robotic arm? We ran six filaments through four tests — three-point bending, one hour at 65–70 °C under load, 30-minute creep, and pendulum impact in both Izod and Charpy configurations. All specimens printed solid, identical settings, dimensions measured individually. Three results worth knowing: - Carbon fibre is not a shortcut to stiffness. Bambu Lab PETG-CF measured 1595 MPa…
❤1🔥1
Big news: we're officially starting production of our own branded SO-ARM-101 kits in China! Each kit includes a Leader and a Follower arm, available in black and white, with Feetech servos, control board, wrist camera and all printed parts, ready to assemble. Also in the box: a set of practice figures for pick-and-place training, an ArUco cube for computer vision tasks, and a printed step-by-step assembly guide. Bas…
🔥4
Practical comparison of smart serial servo motors for robotics A bench-tested comparison of five Feetech TTL serial smart servos used in low-cost robotic arms — STS3215, STS3235, STS3250, HLS3930M and HLS3950M. Measured under load, not from datasheets: - Torque and current: from ~28 kg·cm (STS3215) up to 63 kg·cm (HLS3950M at 6.0 A) - Backlash: STS3250 best at 0.278°; STS3215 and HLS3950M exceeded the 0.5° …
👍4
We've upgraded the gripper with carbon fiber rods, significantly reducing its mass. Weight comparison of two 125 mm rods across materials: - Steel: 55 g - Aluminum: 19.74 g - Carbon fiber: 6.27 g Switching from steel to carbon cuts the rod weight by nearly 9x, and from aluminum by over 3x. Repo: https://github.com/roboninecom/SO-ARM100-101-Parallel-Gripper
🔥6
We're launching our first product sales: the SO-ARM101 Black Robotic Arm Kit is now available as an unassembled kit. A compact dual-arm platform (leader + follower) for AI manipulation research, teleoperation, and imitation learning. Open-source, LeRobot-compatible, with 12 servos and a camera module included. This is a milestone for us, and we'd love for you to be among the first to build with it. Available now a…
🍾4
We redesigned the parallel gripper for SO-ARM101: - no linear bearings — lighter (170 g, down from 250 g) - wider stroke (84 mm), cheaper (~$62) - fewer screw operations during assembly https://github.com/roboninecom/SO-ARM100-101-Parallel-Gripper
🔥6
Beta testing of a robotics learning platform Looking for testers (no experience required) for the beta of lab.robonine.com — interactive lessons and exercises for working with the SO-ARM 100/101 manipulator. Requirement: you own a SO-ARM 100/101, or you're able to assemble and configure one (the course includes a dedicated assembly lesson). What's involved: complete a set of lessons on the platform and send feedbac…
👍4🔥1
Manufacturer specs rarely tell the full story. We load-tested two Waveshare serial-bus servo driver boards from 2A up to 10A, monitored every component with a thermal camera, and documented exactly where the heat goes. If you're building a multi-servo robot arm with STS3215 / STS3250 servos, this one's worth a read. https://robonine.com/testing-serial-bus-servo-driver-boards-under-load/
🔥2❤1👍1
We are testing ways to reduce the mass of the gripper by replacing metal components — such as bearings and screws — with plastic bushings and snap-fit elements. We also explored swapping steel axles for aluminum ones. As a result, the prototype weight dropped from 247 g to 162 g. The updated version will be published in the repository after testing within the coming weeks: https://github.com/roboninecom/SO-ARM100-1…
🔥4
Hackernoon published our article on how semi-SCARA kinematics and mechanical design choices reduce the cost of a 6DOF manipulator without relying on expensive actuators. https://hackernoon.com/building-a-budget-robot-arm-with-semi-scara-kinematics
🔥3👍1
Our paper is now published in HardwareX! "An open-source test stand for backlash measurement in low-cost UART servo motors" presents a ~$100 automated platform for measuring backlash in compact serial bus servos — no dial indicators, no probe contact force, fully scripted and repeatable. All CAD files, control software, and analysis tools are open source. Read the full article: https://www.hardware-x.com/article/S…
❤2👍2🔥1
Showing the 12 most recent of 16 posts we hold for @robo_9. View and reaction counts are the latest single reading for each post, not a live figure, and a recent post is still accumulating both. A view count marked ≈ was rounded by Telegram before we ever saw it — t.me prints views in full below 1,000 and to three significant figures above, so ≈1,200,000 means somewhere between 1,150,000 and 1,249,999. Unmarked counts are exact. Text is reproduced from the public post preview and truncated for length.
A live page changes as we take new readings, so a citation should name the measurement it is based on, not just the URL. The line below cites the subscriber count as measured 13 October 2026 — this entry's latest reading, not the date you are reading this.
“robonine.com” (@robo_9), 87 subscribers as measured 13 October 2026. Telegram Register, tgregister.com/channel/robo_9.
Full measurement history, CC BY 4.0. Every reading this register holds for this entry, not just the latest one, as a dated, downloadable record: CSV · JSON. Free to use with attribution to tgregister.com. Each file carries its own generation timestamp, which is the figure to cite for exactly when the data was retrieved.