OMTech K40 Rotary Axis for K40+ CO₂ Laser Engravers
Expand what you can create with the OMTech K40 Rotary Axis, designed exclusively for the OMTech K40+ desktop CO₂ laser engraver. This compact rotary attachment rotates compatible cylindrical and irregularly shaped workpieces for continuous 360° engraving, making it easy to personalize tumblers, mugs, bottles, and other rounded items. Its SGCC steel and ABS construction combines a durable frame with a compact design that fits the K40+ workspace.
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Pros & cons
What we like
- Inexpensive way to add cylindrical engraving (tumblers, bottles, glasses) to a K40 machine
- Simple plug-in design that connects to the existing Y-axis stepper driver without major rewiring
- Roller design accommodates a range of cylindrical objects with adjustable roller spacing
- Compact and easy to remove, so the flat bed can be restored quickly
- Works with common K40 software such as K40 Whisperer and LaserDRW/CorelLaser with some setup
What could be better
- Compatibility is not universal; it depends on the K40 variant, Y-axis connector, and available vertical clearance, so fit and wiring should be verified before buying
- Requires manual steps-per-rotation calibration and Y-axis settings changes, which can frustrate beginners
- Limited clearance on stock K40 beds means larger-diameter or taller items often won't fit without raising the machine or removing the bed
- Rollers can slip on smooth or tapered items, causing distorted engraving; tapered items generally do not work well
Key features
Who is this for?
Best for
K40 owners who want to add tumbler, glass, or bottle engraving cheaply and are comfortable with some manual calibration. Hobbyists who already run a K40 and want to expand into drinkware personalization.
Not ideal for
Buyers who don't already own a compatible CO2 laser, since this is not a standalone laser or a diode machine. Also not for beginners wanting plug-and-play operation, or for users wanting to engrave large or tapered items.
How it scores
Specifications
| Power | Not applicable (accessory; uses the host machine's laser tube and a stepper motor powered by the host controller) |
|---|---|
| Work Area | Depends on host machine; limited by object diameter, roller spacing, and bed clearance (verify on OMTech's listing) |
| Software | K40 Whisperer, LaserDRW, CorelLaser (via host machine); LightBurn only with compatible controller upgrades |
| Connectivity | Wired connection to the K40 Y-axis stepper driver; USB to PC handled by the host machine |
| Laser Type | Not applicable; accessory for CO2 laser engravers |
| Speed | Determined by host machine settings and calibration |
| Weight | Unverified; light enough to be handled easily |
| Focus | Manual, set via host machine's Z-height/bed adjustment; refocus per object diameter |
| Enclosure | Not applicable; uses the host machine's enclosed chamber and lid |
| Material Compatibility | Glass, coated or painted metal tumblers, wood, and some plastics, subject to host CO2 laser capability |
Compatibility
Not an app-connected device. Works through the K40's existing PC software; confirm compatibility with your specific K40 board and Y-axis connector before purchasing.