Product details

What's included?

Items listed below are included to EVERY order, no matter which options you choose. If you receive more of something — that's spare ones.

• Assembled PCB panel*
• FDM printed parts (shell)
• Battery, 1500 mAh
• 2x PMW3610 with lens
• 4x Flat printed cable
• 2x SMR63ZZ bearing
• 2x Knob, SLA printed**
• 3x Static bearing adapter
• 3x Static bearing (3 mm)
• 40x Magnet (disk, 4x2 mm)
• 16x M2 screw (4 mm, ISO7380)
• 15x Heat-set insert (M2, 3.5x2.5)
• 4x Rubber foot (0.5 mm thickness)
• Hex key (allen wrench)
• Vibration motor (coin)

*Assembled, except for micro-switches and sensors. Includes the motherboard and daughter-boards for sensors and rotary encoders. Panel format (5 boards, single piece).

**I use Siraya Tech Blu biocompatible resin for SLA printing.

Device features

• Wireless (BLE) or wired (Type-C)
• Twist-to-scroll as well as drag scroll (both high resolution)
• At least 250 Hz polling rate (sometimes up to 450 Hz)
• 8 buttons with detachable keycaps, 2 rotary encoders
• Supported ball size: from 50.8 mm (2 inches) to 55 mm
• Fast charging (up to 15W) with QC and PD support
• RGB underglow and a vibration motor for feedback

Options

Switches

• Kailh Blue Dot — clicky, but fairly quiet. Solid choice.
• Omron D2LS-21 — has a loud pronounced click.
• HUANO White Dot — TBD.

Bearings

• Static — just ceramic balls. Completely silent, but static friction is unavoidable. It means that while the trackball rolls, it's very easy to operate, but when it's in the steady state, making small precise pointer movements is fairly hard. Requires maintenance (cleaning). The material is Si3N4 (silicon nitride).
• BOSCH® Rexroth BTU — ball transfer unit, exceptionally smooth, no static friction whatsoever, requires no maintenance. Not silent! Louder than ball bearings, but not annoyingly loud.
• Veichu BTU — more affordable ball transfer unit. Less smooth in terms of sound and feel (but still very smooth in terms of pointer movements), no static friction, fairly loud.

Extra

• "Install sensors, switches and heat-set inserts" — you can read this option as "I don't have a soldering iron or not confident in my soldering skills". I will solder down the sensors and the switches and install all heat-set inserts for you. Oh, and also I will solder down wires of the vibration motor.

P.S. No AI/LLM has been used to write this description. I hope the cliche "em-dashes mean ChatGPT" will die soon.