Sculpfun iCube Ultra:
The Compact Dual-Laser That Punches Above Its Class
12W Diode + 1.2W IR · 150×135mm · Class 1 Enclosed · Built-in Smoke Filter · 300+ Materials · LightBurn Ready
For years, the compact portable laser market has been split between two frustrating extremes. Budget cube engravers offered a tidy footprint and beginner-friendly safety, but limited laser power and restricted material compatibility left makers wanting more. Competing portables like the Atomstack P1 and Ortur R1 have since entered the dual-laser space — but each makes its own trade-offs on laser power, work area, and filtration. The iCube Ultra sets out to address every one of those gaps simultaneously.
The Sculpfun iCube Ultra lands squarely in that gap. Announced as the direct successor to the popular iCube series, it arrives with a complete hardware overhaul: 12W of true diode output for real wood cutting, a 1.2W 1064nm infrared module that unlocks metal and plastic engraving, a fully enclosed Class 1 body with an auto-pause safety door, and a 150×135mm working area that's 3.5× larger than most competing portable machines. All this, with a built-in multi-layer smoke filtration system — and full LightBurn compatibility from day one.
This review draws on hands-on community testing, published user reviews from The Gadgeteer, best-lasercutter.com, and the Diode Laser Wiki, plus direct comparisons with the machine's closest real-world competitors — the Atomstack P1 and Ortur R1 — to give you a clear, honest picture of where the iCube Ultra earns its place and where its limitations lie.
Should You Buy the Sculpfun iCube Ultra?
Yes — for most home makers, small business owners, and craft fair sellers, the iCube Ultra is the best enclosed portable dual-laser machine at its price point. It combines a 12W diode laser for superior cutting of wood and acrylic with a 1.2W infrared laser optimized for high-end metal and plastic engraving — and it delivers this in an FDA Class 1 certified enclosure with built-in smoke filtration, making it genuinely suitable for living rooms, offices, and classrooms. No other dual-laser portable in this price bracket offers a work area this large, safety this comprehensive, or LightBurn compatibility this seamless.
Consider alternatives if you're on the tightest possible budget and work exclusively with non-metal materials (the Atomstack P1 single-laser is more affordable), or if ultra-portability and foldable take-anywhere design matter most to you (the Ortur R1 folds like a suitcase at just 2.4kg). For everything else — real cutting power, dual-laser metal capability, built-in filtration, and the largest work area in the class — the iCube Ultra is the value-smart choice.
What Is the Sculpfun iCube Ultra?
The Successor That Addressed Every Complaint
The original iCube series earned a strong following for its compact enclosed design, built-in smoke filtration, and approachable price point. But independent reviewers and community members were vocal about specific frustrations: the protective cover fit loosely, laser power topped out at 10W, the old AVR/ESP32 motherboard limited high-speed precision, and — critically — the machine could only engrave diode-compatible materials. Bare metal engraving was simply off the table.
Sculpfun addressed every one of those points. The iCube Ultra is the successor to the popular iCube series, incorporating many of the improvements requested by the community. The key headline upgrades: 12W output at 450nm for the diode module, and a brand-new 1.2W infrared module (1064nm) that handles gold, silver, titanium, stainless steel, and most plastics. The frame moved from lightweight plastic to a robust aluminum construction with linear bearings. The cover became a proper safety door with an auto-pause mechanism. And the motherboard stepped up to Sculpfun's 3rd-generation 32-bit STM32 controller, enabling stable operation at 10,000 mm/min without the belt drift or slippage that earlier models sometimes exhibited.
The result is a machine that competes not just with other portable cubes, but — on value and safety grounds — directly challenges products costing two to four times as much.
The Dual-Laser System Explained
The iCube Ultra ships in two versions: a single 12W diode version, and the dual version reviewed here, which adds the 1.2W IR module. The two modules are swapped physically — one mounts at a time — and you switch between them in software. There's no simultaneous dual firing; you choose the right module for the material, run that job, then swap if needed.
12W Blue Laser — The Cutter
- Cuts 10mm Paulownia wood in a single pass
- Multi-pass cutting of birch plywood, MDF, bamboo
- Precision engraving on wood, leather, cork, fabric
- Ceramics, jade, marble, felt, dark glass
- Painted & plated metals, coated surfaces
- Dark acrylic, paper, cardboard, rubber
1.2W Infrared — The Metal Specialist
- Gold, silver, platinum — fine jewelry marking
- Bare stainless steel, titanium, brass, aluminum, iron
- 0.03mm ultra-fine compressed spot size
- Microscopic hallmarks inside rings and pendants
- Black acrylic and most plastics (ABS, PC, PET)
- Electronics components, coated metals
6 Reasons the iCube Ultra Stands Out
150×150mm — 3.5× More Space
Compared to other portable laser engravers on the market, the iCube Ultra offers a 150×150mm engraving area — 3.52 times larger than the typical 80×80mm compact portable. Covers coasters, phone cases, jewelry, and name badges without compromise.
Auto-Pause Door · No Goggles Required
The SCULPFUN iCube Ultra is FDA Class 1 certified and features a fully enclosed design with a door stop function. It also includes an emergency stop button, temperature sensor, and USB security key. Safe for homes, offices and classrooms.
$99 Smoke Filter — Included Free
Say goodbye to bulky external exhaust fans. The iCube Ultra features an advanced replaceable carbon filter that captures dust and neutralizes odors during the burning process. Multi-layer design: HEPA + activated carbon.
STM32 32-bit · Aluminum · Linear Bearings
Featuring a robust aluminum frame, advanced linear bearings, and SCULPFUN's 32-bit 3rd-generation motherboard, the iCube Ultra achieves engraving speeds up to 10,000 mm/min while maintaining superior stability and precision.
LightBurn · LaserGRBL · Sculpfun App
Full LightBurn compatibility (Mac + Windows) out of the box. LaserGRBL for Windows. Sculpfun App for quick mobile jobs. No proprietary ecosystem lock-in, no subscription fees.
Under 30 Min from Box to First Engrave
You can go from unboxing to your first engraving in under 30 minutes. In some cases, users have started crafting in just 10 minutes. Autofocus included — no manual focus spacers or rulers needed.
Full Specifications
| Specification | Sculpfun iCube Ultra (Dual Laser Version) |
|---|---|
| Diode Laser | 12W output · 450nm (455nm) |
| IR Laser Module | 1.2W · 1064nm Metal & plastic specialist |
| IR Spot Size | 0.03mm ultra-fine compressed spot |
| Working Area | iCube Ultra (150 × 150mm); iCube Ultra Dual (150 × 135mm) |
| Max Processing Height | 80mm |
| Max Engraving Speed | 10,000 mm/min |
| Max Cut Depth (Diode) | 10mm Paulownia single pass · multi-pass for denser hardwood |
| Frame | Aluminum · linear bearing motion system |
| Motherboard | 3rd-gen 32-bit STM32 |
| Safety Door | Auto-pause on open · tilt-detection alarm |
| Safety Certification | FDA Class 1 (multiple certifications) |
| Smoke Filtration | Built-in multi-layer (HEPA + activated carbon) · external purifier port |
| Sensors | High-temperature sensor · tilt-stop alarm · USB safety key |
| Connectivity | USB · Bluetooth · Wi-Fi |
| Software | LightBurn (Mac/Win) · LaserGRBL (Win) · Sculpfun App (iOS/Android) |
| Autofocus | Yes — one-button autofocus |
| Optional Accessories | Rotary roller · HD camera · Air purifier SP1 · Air assist kit · Slide extension |
| Compatible Materials | 300+ across both laser modules |
| Laser Module Design | Interchangeable swap — one active at a time |
| Versions Available | Single diode (12W) · Dual laser (12W diode + 1.2W IR) — this review covers Dual |
Real-World Performance
The jump from the original iCube's 5–10W to the Ultra's 12W is not a cosmetic spec bump — it's a material capability shift. Community testers and independent reviews consistently confirm single-pass cuts through 10mm Paulownia at normal operating speeds, clean multi-pass results through 3–5mm birch plywood, and sharp, high-contrast engravings on MDF, bamboo, cork, and hardwood panels.
The aluminum frame and linear bearings make a noticeable difference in engraving quality at higher speeds. Earlier iCube models exhibited occasional minor banding at fast passes due to belt compliance; the Ultra's more rigid construction keeps lines clean even at 10,000 mm/min. The 3rd-gen STM32 controller also means more precise step interpolation at speed, translating to crisper detail in intricate vector and photographic engravings.
For craft fair-scale production — coasters, keychains, small signs, ornaments, personalised gifts — the 150×150mm bed and 12W diode combination handles the practical product mix without compromise. Leather engraving is clean. Fabric cutting for decorative work is fast. Paper and card are handled precisely.
This is the capability that separates the iCube Ultra Dual from virtually every comparable machine at its price. The 1064nm IR wavelength is absorbed by metals that the 450nm blue diode simply reflects off — enabling permanent, high-contrast marks on bare stainless steel, gold, silver, titanium, brass, aluminium, and platinum. With the 1064nm infrared laser module, the iCube Ultra achieves exquisite results on gold, silver, copper, and stainless steel. The 0.03mm ultra-fine compressed spot ensures that even microscopic text on the inside of a ring is rendered with perfect clarity.
For jewelers, accessories brands, and personalisation businesses, this changes the value proposition entirely. A machine that previously required separate investment in a standalone IR marker to handle metal can now do it natively, within the same enclosed desktop footprint.
An important caveat: the 1.2W IR module is a marking laser. It produces permanent surface marks on metals. It will not cut metal sheet — that requires a MOPA fiber system with significantly higher power. For the target audience of this machine (craft makers, personalization businesses, jewelers), surface marking is exactly what's needed, and the IR module delivers it with precision the diode cannot approach.
Material Compatibility: 300+ Materials Across Both Modules
12W Diode (450nm) — General Engraving & Cutting:
1.2W Infrared (1064nm) — Metal & Plastic Specialist:
Software: LightBurn, LaserGRBL & Sculpfun App
No Ecosystem Lock-In — Your Software, Your Rules
Full LightBurn compatibility is one of the iCube Ultra's most practically valuable attributes. LightBurn is the laser community's preferred software by a wide margin — it handles vector import, raster engraving, camera positioning, and parameter management far more comprehensively than any manufacturer's proprietary application. The iCube Ultra connects and operates in LightBurn natively, without hacks or workarounds.
LaserGRBL, the popular open-source Windows application, is also fully supported. For makers who prefer a simpler, free workflow for basic jobs, LaserGRBL is clean and reliable on the iCube Ultra's STM32 firmware.
Sculpfun's own mobile app covers quick on-the-go jobs — particularly useful at craft fairs or markets when you want to run simple personalisation jobs from a phone without opening a laptop. App reliability on iOS has been an occasional source of community feedback, though LightBurn users report no connectivity issues.
A camera module is also available for the iCube Ultra and can be purchased as an accessory. The camera works through LightBurn's camera system — notably, this is a LightBurn feature rather than Sculpfun's own — enabling precise visual positioning for batch jobs and borderless material coverage.
Head-to-Head: iCube Ultra vs. Atomstack P1 & Ortur R1
The three most directly comparable enclosed portable dual-laser machines in 2026 are the Sculpfun iCube Ultra, the Atomstack P1 Dual, and the Ortur R1. All three are Class 1 certified, all three offer a diode + IR dual-laser configuration, and all three are aimed at home makers and small business users. The differences between them, however, are significant — and the right choice depends on what you prioritise.
| Machine | Diode Power | IR Power | Work Area | Max Speed | Class 1 | Built-in Filter | LightBurn |
|---|---|---|---|---|---|---|---|
| Sculpfun iCube Ultra ★ | 12W | 1.2W · 0.03mm spot | 150×150mm | 10,000 mm/min | ✅ FDA Class 1 | ✅ Included | ✅ |
| Atomstack P1 Dual | 5W | 1.2W | 110×110mm | 10,000 mm/min | ✅ Class 1 | ❌ Add-on ($) | ✅ |
| Ortur R1 Dual | 5W | 1.3W | 100×100mm | 5,000 mm/min | ✅ Class 1 | ❌ None | ✅ |
Community Reception & Real User Feedback
Reception across Sculpfun's community forums, the Diode Laser Wiki, and retail review channels has been strongly positive, with two groups providing the most enthusiastic feedback: existing iCube owners upgrading to the Ultra, and first-time buyers who specifically sought a safe indoor machine.
The auto-pause safety door has drawn consistent praise as a hardware improvement over the original iCube's loosely fitting protective cover — a specific design shortcoming that Hobby Laser Cutters and independent reviewers had flagged in earlier model assessments. Verified purchasers on Sculpfun's own platform corroborate the "under 30 minutes from unboxing" claim. Craft fair operators specifically appreciate the ability to demonstrate and personalise products live, in public, without laser safety concerns or external ventilation equipment.
Real user voices from Sculpfun's community include: "If you do face-to-face sales, the iCube is a game-changer — personalize products instantly and increase your revenue." One long-term customer notes: "Ever since I started with diode lasers I have viewed Sculpfun as a cost-effective but good quality product and, as evidence of that, my machines have never let me down."
Pros & Cons
✅ What We Love
- 12W diode cuts 10mm Paulownia in a single pass — genuinely capable
- 1.2W IR module unlocks bare metal engraving (gold, silver, steel, titanium)
- 0.03mm IR spot size — microscopic hallmarks on jewelry
- Largest work area (150×150mm) in the portable enclosed class
- True FDA Class 1 enclosure with proper auto-pause door
- Built-in HEPA + activated carbon filtration — no extra fan required for engraving
- Aluminum frame + linear bearings = stable at full 10,000 mm/min speed
- 3rd-gen 32-bit STM32 controller for precise motion control
- Full LightBurn compatibility on both Mac and Windows
- LaserGRBL + Sculpfun App for flexible workflow
- Tilt alarm + temperature sensor + emergency stop — comprehensive safety
- Rotary attachment support for cylindrical objects
- Optional LightBurn camera module for precise batch positioning
- Ready under 30 minutes — lowest friction setup of any dual-laser machine tested
- Strong Sculpfun community and responsive customer support
⚠️ Limitations to Consider
- Gantry-based at 10,000 mm/min — 24× slower than galvo machines (F1: 4,000 mm/s = 240,000 mm/min)
- 1.2W IR marks metals, does not cut them — MOPA fiber required for metal cutting
- 150×150mm bed is excellent for portable use, but not suitable for large signage or panels
- Mobile app reliability has occasional reports on iOS — LightBurn is the more stable path
- Firmware reflashing requires STM32 tool rather than the older iCube flashing method
- Heavier cutting sessions benefit from adding an external air purifier alongside the built-in filter
- IR module is a physical swap — switching laser types adds a few minutes between jobs
Who Is the iCube Ultra Built For?
Craft Fair & Market Sellers
Run live personalisation in public — fully enclosed, no fume concerns, no goggles. Plug in, open app, start engraving while customers watch. The game-changing use case the iCube was built for.
Jewelry & Accessories Makers
The IR module's 0.03mm spot handles ring hallmarks, pendant text, and custom metal jewelry with the precision previously locked behind dedicated fiber laser stations.
Home Studio & Apartment Makers
Built-in filtration and a Class 1 enclosure mean it's genuinely suitable for shared spaces. No workshop, no ventilation duct — just a power outlet and a desk.
First-Time Laser Buyers
Under 30-minute setup, app control, LightBurn compatibility, and a strong Sculpfun community make the iCube Ultra the most approachable dual-laser machine for newcomers to the hobby.
Etsy Sellers & Personalisation Shops
Produce a broader product range — wood gifts, leather goods, ceramic items, and metal jewelry — from one machine, covering material types that single-laser alternatives cannot.
Schools & Makerspaces
Class 1 certification, no external ventilation requirement, and an approachable beginner-safe design make the iCube Ultra a strong educational laser engraving platform.
Is the Sculpfun iCube Ultra Right for You?
✓ Buy the iCube Ultra if:
- You want one machine covering wood, leather, AND metals
- Indoor-safe operation without external ventilation is important
- You personalise jewelry, gifts, coasters, name badges, or phone cases
- You need the largest work area in the portable enclosed class
- You're a first-time buyer wanting a safe, approachable machine
- You sell at markets and want live on-site personalisation
- LightBurn compatibility is a requirement
- Value for money is a priority — dual laser capability without premium pricing
› Consider alternatives if:
- Ultra-portability is everything
- Budget is the primary constraint and you only engrave non-metals
- You need galvo production speed for very high throughput — open-frame or galvo machines offer faster rates
Sculpfun iCube Ultra: The Best Portable Enclosed Dual-Laser for Most Makers
The Sculpfun iCube Ultra earns the top recommendation in the portable enclosed engraver category by combining capabilities that no other machine at its price point manages together: a 12W diode laser with real cutting power, a 1.2W IR module that unlocks bare metal engraving, an FDA Class 1 enclosed body with a proper auto-pause safety door, built-in HEPA and activated carbon filtration, and a 150×150mm work area that's 3.5× larger than the typical portable. The 3rd-gen STM32 motherboard, aluminum frame, and linear bearings deliver the mechanical precision that earlier iCube models sometimes lacked. LightBurn runs natively without workarounds. The safety profile is genuine — not a marketing checkbox. For first-time buyers, craft fair sellers, jewelry makers, home studio creators, and small business owners who need indoor-safe, versatile engraving across the widest possible material range, the iCube Ultra is the clearest recommendation in its class.
Frequently Asked Questions
Ready to Add the Sculpfun iCube Ultra to Your Studio?
Available now at Laserbuying — local US & EU warehouse stock for fast delivery. Ships in dual-laser configuration with diode and IR modules included.
Shop iCube Ultra at Laserbuying →
