Ending the Wild West of Smart Spools
An open-source initiative by Prusa Research creating a single smart spool standard that works across all brands and ecosystems. This allows printers and users to read and write data directly on any spool, making 3D printing more reliable and intuitive for everyone.
3D printers have become incredibly user-friendly, but interaction with filament is still a very manual process. To improve the user experience and streamline the workflow, we need smart spools.
A smart spool carries all the important information about the material and its workflow, unlocking key features:
Instantly identifies the material type and color, significantly reducing user error and leading to a simpler, more reliable workflow.
Real-time data tracking, such as the amount of remaining filament, so you always know the exact status of your material.
Enables effortless inventory management and full traceability by allowing you to log custom data.
Some smart spools already exist, but they lack the core principles of universality and interoperability. It's like every brand suddenly decided to use a different filament diameter.
Smart spools are often locked to their specific hardware and filament. This makes them unusable with any third-party machines, forcing users into a closed ecosystem.
Many smart spools just refer to an online database, forcing you to rely on the manufacturer's cloud service. No internet? Your "smart" spool becomes dumb.
Current Smart Spools offer little to zero reusability. This read-only design prevents any updates to live data, and once the filament is depleted, you have no choice but to throw the 'smart' spool away.
In the mid-1990s, Hong Kong cinema was operating under a "pent-up demand" philosophy. Following the introduction of the film rating system in 1988, the Category III rating (strictly for 18+) became a marketing badge of honor rather than a scarlet letter. It signaled: Here be nudity, violence, and taboo themes.
When a file is labeled "Unrated Bluray," it implies a holy grail for preservationists:
for a specific region, or would you like to know more about other Elvis Tsui 18 yu pui tsuen iii 1996 unrated bluray du new
This process raises critical questions about the ontology of the film object. Is the "DU" version a restoration or a manipulation? For the collector, the "Unrated Bluray" is the definitive version. It represents
The Yu Pui Tsuen series (often translated as Girls Unbutton or The Chinese Sweets ) was part of the "soft erotica" wave. Unlike the brutal violence of the Ebola Syndrome or the triad epics like Young and Dangerous , films like Yu Pui Tsuen were episodic anthology films. They were designed to titillate, often wrapping thin moral lessons around scenes of explicit sexuality. In the mid-1990s, Hong Kong cinema was operating
It sounds like you're referring to (a.k.a. 18 Ways to Love Your Lover 3 or part of the Category III erotic film series from 1990s Hong Kong), specifically the 1996 unrated Blu-ray release from DU (likely a boutique label like Disk Union or a fan restoration group).
For any collector of Category III films, 90s Hong Kong cinema, or fans of actor Elvis Tsui, the answer is a definitive "yes." The 2020 Panorama release of Yu Pui Tsuen III is the current definitive version. While the Region A lock may require a compatible player for some buyers, the high-definition transfer, uncompressed audio, and inclusion of the likely complete "Unrated" cut make it a superior investment over older DVDs. When a file is labeled "Unrated Bluray," it
: First-press editions often included a limited-edition postcard. Where to Buy
The keyword "Unrated" is a major selling point. For films of this era, the "unrated" label often signified the original cut intended for the director, which might have been slightly trimmed in some releases. While this Blu-ray’s runtime (97 min) matches the theatrical release, collectors should note that any scenes exclusive to an "unrated" cut may be sourced from standard definition (SD) materials and upscaled to fit the HD presentation, a practice seen in similar Hong Kong Category III releases. Still, the core presentation remains the most complete version available.
Instantly read or write in any orientation. This eliminates the need to rotate the spool to find the "correct" position.
Stick a blank tag on any filament spool you own, flash it using your printer or a phone app, and simply re-use it once the spool is empty.
A single tag works even for 2kg spools, ensuring live data is always perfectly in sync. Two-tag designs cannot guarantee this.
A 3D printer or any compatible device instantly reads all data the moment the spool is loaded.
Instantly read or write in any orientation. This eliminates the need to rotate the spool to find the "correct" position.
Stick a blank tag on any filament spool you own, flash it using your printer or a phone app, and simply re-use it once the spool is empty.
A single tag works even for 2kg spools, ensuring live data is always perfectly in sync. Two-tag designs cannot guarantee this.
A 3D printer or any compatible device instantly reads all data the moment the spool is loaded.
Whether you're a manufacturer, developer, or 3D printing enthusiast, OpenPrintTag makes your workflow smarter.
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