Sculpfun iCube Ultra Review: Real-World Testing, Smart Positioning Hack & Multi-Material Performance
The Sculpfun iCube Ultra is a compact yet powerful dual-laser engraver that combines diode and infrared (IR) technology in one machine. Unlike traditional single-laser setups, this hybrid approach dramatically expands material compatibility—from wood and leather to stainless steel and coated metals.
In this hands-on review, Alex Express doesn’t just test the machine—he pushes it into real-world scenarios: batch production, precision alignment, and multi-material workflows. Even more interesting, he introduces a clever positioning hack by engraving a grid directly onto the metal base plate, turning the machine into a far more efficient production tool.
Dual Laser Capability: True Multi-Material Freedom
One of the biggest advantages of the iCube Ultra is its ability to switch between diode and infrared laser modules. This allows users to work across completely different material categories without needing separate machines.
The IR laser module shines when engraving metals, producing sharp contrast and fine details even on small objects like keychains or metal tags.
Metal engraving in progress using IR laser.
Final engraved metal keychain with clean contrast.
Precision engraving on circular metal plate.
Detailed IR engraving result on metal keychain.
Compared to diode-only machines, this dual-laser setup removes a major limitation—metal engraving no longer requires coatings or additional processing. This is especially valuable for small business owners producing custom items.
Leather & Wood Engraving: Clean, Detailed, and Consistent
For organic materials like leather and wood, the diode laser delivers excellent results. Fine line detail, consistent burn depth, and minimal distortion are clearly visible across multiple test pieces.
Finished leather keychain engraving.
Close-up engraving details on leather surface.
Wood keychain engraving process.
Grid test used for power and speed calibration.
The grid test is particularly useful for dialing in optimal settings. By testing different power and speed combinations, users can quickly identify the best parameters for each material—saving time and reducing trial-and-error.
Air Assist: Cleaner Cuts, Better Efficiency
When it comes to cutting performance, adding an air assist system makes a significant difference. By directing a constant stream of air at the cutting point, it reduces burn marks, prevents material charring, and improves edge quality.
Installing the air assist system.
Laser cutting process with air assist enabled.
Notice the clean edges with almost no burn marks.
Finished wood panel after cutting.
Final output showing consistent cutting quality.
Another satisfying moment during testing is when the cut pieces naturally drop out once the cut is complete—indicating full material penetration and clean separation.
Honeycomb Bed: Essential Upgrade for Better Results
To further improve cutting performance, using a honeycomb bed is highly recommended. It enhances airflow under the material and prevents back reflections, resulting in cleaner cuts and safer operation.
Honeycomb bed combined with air assist system.
Creative Project: PEACH Tic Tac Toe
Beyond testing, Alex Express also explores creative applications. One standout project is a PEACH-themed tic tac toe game, demonstrating both engraving precision and cutting consistency.
Engraving the game board.
Final assembled game set.
This highlights how the iCube Ultra is not just a tool for industrial tasks—but also ideal for personalized gifts and creative DIY projects.
Smart Positioning Hack: Metal Grid System
One of the most valuable ideas in this review is the custom grid system engraved directly onto the metal base plate. This transforms the workflow, especially when working with small objects like coins, tags, or keychains.
Grid engraved onto the metal base plate.
Precise positioning enabled by grid system.
Instead of manually aligning each item, the grid provides a visual reference system. This dramatically improves repeatability and reduces setup time—making batch production much more efficient.
Even better, Alex Express shared the exact LightBurn grid file used in the test, allowing others to replicate this setup instantly.
Ease of Use & Built-in Features
The iCube Ultra is designed to be beginner-friendly while still offering advanced features for experienced users.
Auto-focus system simplifies setup.
Built-in smoke filtration system.
External exhaust setup for better ventilation.
More Material Tests
Stone engraving process.
Finished engraved stone artwork.
Custom engraving on plastic plug.
Engraving in progress.
Final Thoughts
The Sculpfun iCube Ultra stands out as a versatile, compact, and highly capable laser engraver. Its dual-laser system eliminates material limitations, while practical upgrades like air assist and honeycomb beds significantly enhance performance.
Most importantly, the grid positioning method showcased in this review adds a real productivity advantage—transforming the machine from a hobby tool into a small-scale production solution.
