Lead time for new orders is up to 15 working days.
What's included?
Items listed below are included to EVERY order, no matter which options you choose.
- Assembled PCB panel*
- FDM printed parts (shell)
- Battery, 1500 mAh
- Vibration motor (coin type)
- 2x PMW3610 with lens
- 4x Flat printed cable
- 2x SMR63ZZ bearing
- 2x Knob, SLA printed**
- 3x Static bearing adapter
- 3x Static bearing (3 mm)
- 36x Magnet (disk, 4x2 mm)
- 22x M2 screw (4 mm, ISO7380)
- 9x Heat-set insert (M2, 3.5x2.5)
- 4x Rubber foot (0.5 mm thickness)
- Hex key (allen wrench)
- Glue, 3 ml
*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 (Bluetooth Low Energy) or wired (USB Type C)
- Twist-to-scroll as well as drag scroll (both high resolution)
- At least 250 Hz polling rate (up to 500 Hz, average ~325 Hz)
- 8 buttons with detachable keycaps, 2 rotary encoders
- Supported ball size: from 50 mm to 55 mm
- Fast charging (up to 15W) with QC and PD support
- RGB underglow and a vibration motor for feedback
Options
Colors
Please take a look at the "Links" tab — you will find photos and videos of available colors.
Extra keycaps
If you'd like an extra set of keycaps and magnets to be included, choose a color using this option. A set of keycaps in the shell color will be included in any case.
Switches
- Omron D2LS-21 — has a loud pronounced click.
- Kailh Blue Dot — clicky, a little quieter than Omron.
- HUANO White Dot — has softer, lower pitch sound.
You will find video comparison under the "Links" tab.
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. Require maintenance (cleaning). The material is Si3N4 (silicon nitride). Included to every order.
- 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 (debatable).
- 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.
Other specs
- Firmware: ZMK (with custom modules)
- Size: 102x91x24 mm (with no ball and keycaps)
- Material: PLA, UA origin ("Nebula" — US origin)
- Keycaps: 6 mm (total height), PLA
- Battery: 102550 3.7V 1500 mAh
- Max Bluetooth devices: 5
- On-board memory: yes
- CPU: nRF52833 (Arm Cortex-M4)
- Encoders: 12 clicks per 360°
Power consumption* @ 4.2V
- Transmitting: 3.5 mA
- Idle, connected: 680 uA
- Sleep: 300 uA
*Highest polling rate, RGB off.
P.S. No AI/LLM has been used to write this description. I really hate the cliche "em-dashes mean ChatGPT" and hope it will die soon.