MT400RUBL60ProV3 – Bluetooth Programmable Turntable for 3D Scanning, Photogrammetry & Automated Rotation

Instant clarity: This is a Bluetooth‑enabled, heavy‑duty electric turntable designed specifically for 3D scanning and photogrammetry – it rotates objects in precise, repeatable steps so you can capture complete 360° geometry with any scanner or camera.

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Why the MT400RUBL60ProV3 is the Right Choice for 3D Scanning

If you are serious about 3D scanning, you know that consistent, repeatable object rotation is half the battle. The MT400RUBL60ProV3 gives you that control – wirelessly, programmatically, and with enough payload to handle most real‑world objects.

Key benefits for scanning professionals

• 60 kg step‑mode load – scan heavy parts, mannequins, automotive components, or even furniture with ease.
• Bluetooth BLE 4.0 control – untethered operation from your phone, tablet, or laptop – no cables to trip over.
• ASCII command protocol (CT commands) – integrate with your existing scanning software, or write your own control scripts.
• Step‑and‑pause precision – set any angle (e.g., 15°, 30°, 45°) and pause time to match your scanner’s capture speed.
• Infrared remote included – quick manual override for speed, direction, and preset rotations.
• Built for photogrammetry – the step mode ensures overlap between images, essential for high‑quality 3D reconstruction.

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What Makes This Turntable Different from Consumer Spinners?

Most cheap turntables are either manual or have a simple continuous motor. The MT400RUBL60ProV3 is an industrial‑grade, programmable rotating platform with a focus on repeatability and external control. It doesn’t just spin – it obeys commands. You tell it exactly how many degrees to rotate, how long to pause, and how many steps to repeat – every time, with the same precision.

Designed for the 3D scanning workflow

• Repeat step mode – rotate X°, pause for Y seconds (for the scanner to capture), then repeat N times. This ensures complete coverage without missing any angle.
• Single step mode – move exactly X° on demand, perfect for manual verification or fine adjustments.
• Continuous mode – smooth rotation for preview or turntable‑based video capture.
• Pendulum/swing mode – oscillate within a set range, useful for partial scans or dynamic presentations.

All modes are accessible via the Bluetooth CT command set, so you can fully automate your scanning sequence.

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Deep Focus: 3D Scanning – The Perfect Application

The MT400RUBL60ProV3 was engineered with 3D scanning in mind. Here’s why it stands out for this use case.

1. Precision Step Rotation

Photogrammetry and structured‑light scanning rely on overlapping images from multiple angles. The turntable’s step mode lets you define the exact angular increment – for example, 30° per step gives you 12 images for a full 360° ring. You can set any angle (even fractional, like 22.5°) to fine‑tune overlap.

The built‑in pause time ensures your scanner has enough time to capture each view without motion blur. You can adjust the pause from 1 second to several minutes via command.

2. Bluetooth Control – Untethered Convenience

With Bluetooth BLE 4.0, you can place the turntable anywhere in your scanning studio – no USB cable dragging across the floor. Control it from:

• Android phone/tablet (official TurntableBLE demo app)
• Windows laptop (via Bluetooth virtual COM port – SPP mode, custom order)
• Any BLE‑capable device with a custom app

This is especially valuable when scanning large objects where the turntable is in a different room or inside a light booth.

3. Seamless Integration with Scanning Software

The turntable communicates via plain ASCII CT commands. This means you can send commands directly from:

• Python scripts (using pybluez or bleak libraries)
• C# / .NET applications
• LabVIEW, MATLAB, or any programming environment with serial/BLE support

Example workflow:

1. Start your scanner software.
2. Send CT+START(0,1,0,36,3,10); – clockwise step mode, 36° per step, 3‑second pause, repeat 10 times (total 360°).
3. The turntable rotates exactly 36°, pauses 3 seconds, then repeats – while your scanner captures each position.
4. After the last step, the turntable sends CR+EVENT=TB_END, so your software knows scanning is complete.
5. Real‑Time Feedback for Synchronization

During scanning, timing is critical. The turntable provides event notifications:

• CR+EVENT=TB_PAUSE – pause has started (you can trigger the camera/scanner).
• CR+EVENT=TB_END – motion sequence completed.

You can also query the current angle with CT+GETOFFSETANGLE() to verify position or log data for post‑processing.

5. Sufficient Payload for Real Objects

The MT400 series offers 60 kg step‑mode load. That means you can scan:

• Automotive parts (cylinder heads, brake calipers, wheels)
• Furniture (chairs, small tables, lamps)
• Sculptures, busts, and mannequins
• Electronic enclosures and industrial equipment
• Large consumer products (vacuum cleaners, power tools, etc.)

Even with heavy items, the stepper motor ensures smooth, vibration‑free rotation at low speeds – critical for high‑resolution scanning.

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Technical Specifications – MT400RUBL60ProV3

Parameter	Value
Diameter	400 mm
Height	70 mm
Speed range	28 – 75 seconds per full rotation (adjustable)
Step‑mode max load	60 kg (recommended 80% – 48 kg for precision)
Continuous‑mode max load	180 kg (recommended 80% – 144 kg)
Wireless control	Bluetooth BLE 4.0 (device name: MT400RUBL60ProV3)
Wired control	USB (CH340 virtual COM) – also included for backup
Remote control	Infrared remote (56‑key) included
Command protocol	ASCII CT commands (same over USB and Bluetooth)
Power	External DC adapter (included)
Operating temp	0°C – 70°C
Noise level	≤ 60 dB (depends on load)

Note: This model includes Bluetooth (B) but does not include camera shutter (S) or WiFi (W). For WiFi control, see the RUWL series; for shutter sync, see the RUWPSL series.

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Who Benefits Most from This Turntable?

• 3D scanning service providers – deliver consistent results for clients with minimal setup time.
• Product designers & engineers – reverse‑engineer parts with accurate, repeatable scans.
• Museums & cultural heritage – digitise artefacts with high fidelity.
• Medical & dental labs – scan anatomical models or prosthetics.
• E‑commerce brands – create 3D product models for online retail (AR/VR).
• Educators & researchers – teach photogrammetry and 3D reconstruction with a reliable tool.
• Developers – build custom scanning automation systems using the open command protocol.

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Getting Started – From Unboxing to First Scan

1. Unbox and power up – connect the DC adapter, turn on the switch.
2. Bluetooth or USB? – for Bluetooth, enable BLE on your phone/tablet and open the TurntableBLE app (download from official site). For USB, install CH340 driver, connect the cable.
3. Connect – scan for devices, select MT400RUBL60ProV3, and pair (no PIN required for BLE).
4. Test with the remote – use the IR remote to verify rotation and speed.
5. Set your scanning parameters – e.g., angle = 30°, pause = 4 seconds, repetitions = 12.
6. Send start command – either via the app, or your own script.
7. Capture – your scanner grabs images during each pause.
8. Done – receive the completion event and proceed to post‑processing.

The official TurntableBLE app includes a command log so you can see exactly which CT strings are sent – great for learning the protocol.

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Why Choose the MT400RUBL60ProV3 Over Other Turntables for 3D Scanning?

Feature	MT400RUBL60ProV3	Typical consumer turntable
Load capacity	60 kg (step mode)	Usually <5 kg
Control interface	Bluetooth + USB + IR	IR only or simple button
Programmability	Full CT command set	None
Step angle resolution	Any decimal degree	Fixed steps (e.g., 15°, 30°)
Pause time adjustment	Any integer second (via command)	Fixed (e.g., 5s)
Feedback (position, events)	Yes – bidirectional	No
SDK & documentation	Complete	None

This turntable is not just a motor – it’s a smart peripheral that communicates with your scanning ecosystem.

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Advanced Control for Automation Enthusiasts

Scripted Scanning Example (Python pseudo‑code)

text

import asyncio
from bleak import BleakClient

# Connect to the turntable
client = BleakClient("MT400RUBL60ProV3")
await client.connect()

# Send a CT command to start step rotation: clockwise, step mode, shutter off, 30°, pause 4s, repeat 12 times
command = "CT+START(0,1,0,30,4,12);"
await client.write_gatt_char(CHAR_UUID, command.encode())

# Wait for the 'TB_END' event (poll or notify)
# ... your scanner software triggers capture during each pause

This level of integration allows fully unattended 360° scanning – start it, walk away, and return to a complete dataset.

Integration with Popular Scanning Software

While we do not provide direct plugins for every software, the open command set means you can:

• Use Agisoft Metashape with a Python script that controls the turntable between photo captures.
• Integrate with RealityCapture via command‑line calls.
• Build a custom Grasshopper (Rhino) or Blender add‑on for scanning workflows.
• Connect to Artec Studio or PolyWorks using external device triggers.

The turntable becomes a plug‑and‑play motion controller for any scanning pipeline.

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Frequently Asked Questions

Q: Can I use this turntable with my existing 3D scanner?
A: Absolutely – as long as your scanner can capture images or data at each pause. You can manually trigger the scanner or automate it via software.

Q: Does the turntable support USB as well as Bluetooth?
A: Yes, it has a USB Type‑B port (CH340 serial). You can use USB for stable wired control and Bluetooth for wireless convenience – both use the same CT commands.

Q: How accurate is the step rotation?
A: The stepper motor provides high precision. The actual accuracy depends on load and speed, but for typical scanning loads, the error is within <1°. For absolute accuracy, use the hardware zero‑mark (if your model has that feature – see ‘Y’ option).

Q: Can I charge the turntable via USB?
A: No, the USB port is for data only. The turntable requires the included external power adapter (AC‑DC).

Q: Is there a mobile app for iOS?
A: Currently, the official demo apps are Android‑only. However, you can use any BLE‑capable device to send CT commands via generic BLE GATT write – we provide the UUIDs in the developer documentation.

Q: What if I need a larger diameter or higher load?
A: The MT series ranges from 200mm to 800mm, with loads up to 300kg. Contact us for custom recommendations.