Bolt PTR | Pan-Tilt-Roll Robotic Head for Greater Creative Control
MRMC (Mark Roberts Motion Control) Bolt PTR (Pan-Tilt-Roll) is a compact, high-precision robotic camera head specifically engineered for the Bolt and Bolt X high-speed cinema robots. By adding independent Pan, Tilt, and Roll axes, it provides significantly more flexibility and control beyond the robot arm’s movement, especially in confined spaces.
Product Overview
The Bolt PTR solves the common “Gimbal Lock” limitations of traditional heads by allowing the camera to pan, tilt, and roll independently of the Bolt arm’s motion. This results in smoother, more creative camera angles and greater freedom in tight shooting environments such as vehicle interiors.
Key Performance Specifications:
- Camera Payload: Up to 10 kg
- Maximum Speed: Pan 360°/s | Tilt 270°/s | Roll 300°/s
- Acceleration: Over 1000°/s²
- Roll Axis: Unlimited rotation with integrated Slip Ring
- Resolution: 0.001°
- Weight: 10 kg
- Dimensions: 380 × 355 × 530 mm (including Slip Ring)
Key Highlights
1. Independent Roll Axis with Slip Ring
The integrated Slip Ring enables unlimited Roll while continuously powering the camera, focus motors, and transmitting HD video signals — eliminating cable twist issues.
2. Eliminates Gimbal Lock
Independent three-axis control prevents Tilt-90° lock, allowing unrestricted creative camera movement even in the most challenging angles.
3. Reversible Camera Mount
The reversible camera plate lets users position the camera away from the Roll ring to achieve greater Tilt range when needed.
4. Upgraded Motor & Gearbox
Delivers ultra-smooth, stable, and highly responsive movement that rivals the performance of the most rigid traditional camera rigs.
5. Versatile Control Options
Compatible with Flair software, handwheels, pan bars, and other controllers. Can also be used as a standalone head on tripods, sliders, or other platforms. Fully integrates with the Bolt/Bolt X Ultibox for lens control.
Technical Specifications
Movement Range:
- Pan: ±180°
- Tilt: +45° / -60°
- Roll: Unlimited (with Slip Ring)
Performance:
- Max Speed: 360°/s (Pan) | 270°/s (Tilt) | 300°/s (Roll)
- Acceleration: 1000°/s²
- Resolution: 0.001°
Physical & Power:
- Weight: 10 kg
- Dimensions: 380 × 355 × 530 mm
- Supply Voltage: 48VDC (via Ultibox)
Ideal Applications
The Bolt PTR is ideal for productions requiring complex camera orientation and high precision, including:
- Tight interior shots (car interiors, cockpits, etc.)
- High-speed commercials and music videos
- Feature films and television creative sequences
- Visual effects shots requiring Roll axis movement
- Bolt and Bolt X system upgrades for enhanced control
- Standalone use on various platforms
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