Interstellar Explore the Universe by Ludistri

Built & reviewed by John A. MacInnes

Summary Table

Category	Score
Build Quality	10/10
Value for Money	9/10
Difficulty	Intermediate to Advanced
Build Time Accuracy	Accurate
Display Impact	Excellent
Overall Recommendation	Highly Recommended

As a member of the professional review team at Book Nook Workshop, I have had the opportunity to assemble a wide variety of designs from manufacturers around the world. Each build brings something different to the shelf, whether it be intricate craftsmanship, innovative features or simply a unique theme.

For my 57th completed build, I ventured beyond the traditional streets, libraries and fantasy worlds that dominate the market and into the cosmos with Ludistri’s Explore the Universe. Combining detailed construction with lighting and music, this ambitious kit aims to offer more. The question is whether it succeeds in delivering an experience that is as enjoyable to build as it is to admire.

As this is the first Ludistri kit I have had the opportunity to review for Book Nook Workshop, I approached the build with an open mind and no preconceived expectations, as one always should. First impressions, however, have been extremely positive. From the quality of the packaging and presentation through to the standard of the materials, printing and component preparation, the manufacturer has made a strong start. There is, of course, still a long way to go before the final verdict is reached, but thus far Ludistri appear to be setting a very respectable benchmark for any future kits that may find their way onto my review bench.

Where Explore the Universe Stands Out:

The biggest differentiator is its kinetic design. While most book nooks rely on static scenery enhanced with LED lighting, Explore the Universe combines lighting with amusical element, creating a much more immersive display piece. At 241 pieces and around 8–10 hours of assembly, it sits in the intermediate-to-advanced category. I was slightly disappointed that there was no motor movement element to the kit, having seen all the cogs I assumed, wrongly there would be, but these are static decorations only.

The completed size of the nook is: 18cm x 11.5cm x 25.5cm

There are other kits out there which offer similar genres, and here’s a brief comparison.

First impressions were extremely positive. Everything arrived well protected and neatly presented, with the contents housed in a sturdy display box that suffered no ill effects from its journey. The addition of a full-colour printed sleeve gives the packaging a quality feel and makes it ideal for gifting. Whether it actually ends up being given away is another matter entirely, as many book nook fans will know that purchasing a kit “for someone else” can be a remarkably flexible concept.

Opening the box reveals a generous collection of components, including 11 full-size 2.5mm MDF sheets, four of which feature double-sided printing. Also included are glue, a sanding stick and a screwdriver, meaning there is very little need to go rummaging through drawers in search of essential tools before getting started. The box also contains several small bags of crystal-style accessories, along with the complete lighting system and musical mechanism, all of which are carefully packed to prevent damage during transit. It is a comprehensive package that leaves little to chance and, importantly, avoids the disappointment of discovering halfway through a build that a key component has been omitted.

The instruction manual deserves a mention. Produced in full-colour A4 format, it is refreshingly easy to read, particularly for those of us who are now reaching the stage where ever-smaller print seems to be considered a design feature rather than a convenience. Several stages are illustrated using what is almost photographic illustrations rather than simple diagrams, making it remarkably straightforward to follow the build sequence and confirm that everything is progressing as intended. The manual also includes a comprehensive inventory of the wooden sheets and all accompanying components, allowing builders to carry out a quick stock check before starting. It is a simple but highly effective addition that provides reassurance that everything required for the build is present and accounted for before the first piece is removed from its sheet.

The lighting and sound system is supplied as a complete package, although builders will need to provide two AA batteries. As with virtually every book nook kit on the market these days, batteries are not included due to air freight restrictions. The system comprises a battery box with a manual override switch, a PCB containing the movement sensor, along with five LED light heads in warm white that illuminate the finished scene. The music is provided by a wind-up music box.

Before installing any of the lighting components, I would strongly recommend carrying out a full test of the LED system. It takes only a couple of minutes to connect everything up and confirm that each light is functioning correctly, yet it has the potential to save hours of frustration later in the build. There are few things more disheartening than reaching the final stages of construction, flicking the switch with a sense of anticipation, and discovering that one of the LEDs has decided not to join the party.

By that stage, the relevant wiring is often buried deep within the structure and surrounded by enough glue to withstand a minor earthquake. What began as a simple lighting fault can quickly turn into a major reconstruction project involving equal measures of determination, optimism and colourful language. Fortunately, a quick test before installation largely eliminates that risk. Consider it a small investment of time that your future self will almost certainly thank you for.

One aspect that remains surprisingly common across the industry is the lack of colour-coded wiring, and this kit follows that trend. The manual identifies the five LED heads simply as lamp 1 through lamp 5 and, while it clearly shows that each wire is a different length, it does not provide the actual measurements. My advice would be to spend a couple of minutes at the outset identifying each lamp, starting with the shortest lead and working through to the longest. A coloured marker pen can save a great deal of head scratching later in the build. Keep a note of your colour scheme and, when the time comes to install the lighting, you’ll know immediately that Lamp 1 is blue, Lamp 2 is green and so on, rather than trying to work out which nearly identical wire disappears into the depths of the structure. Future-you will be extremely grateful for the effort.

Print quality throughout the kit is exceptional and comfortably ranks among some of the best I have encountered. Colours are vibrant, details are crisp and, perhaps most importantly, there is no evidence whatsoever of overprinting, misalignment or any of the minor production flaws that can occasionally detract from an otherwise excellent build. Even on the double-sided printed boards, where maintaining perfect registration can be more challenging, everything remained well within acceptable manufacturing tolerances, with no issues that would be noticeable during construction or in the finished display. Every printed surface is sharp and clean, helping to create a convincing finished scene and demonstrating a level of quality control that some manufacturers would do well to emulate. It is one of those aspects that may go unnoticed by many builders, but when the standard is this high it undoubtedly contributes to the premium feel of the completed model. (See image 4)

The manufacturer suggests a build time of between eight and ten hours, which on paper appears entirely reasonable given the number of components and the inclusion of lighting along with the music box. Whether that estimate survives first contact with reality remains to be seen, of course. As any experienced book nook builder will know, published build times can vary anywhere from impressively accurate to wildly optimistic, depending on the complexity of the kit and the builder’s tendency to stop every few minutes to admire their progress. We’ll revisit that figure at the end of the review and see just how close the estimate proved to be.

Interestingly, the manufacturer does not provide a star rating or any other formal indication of build difficulty on the packaging. However, a brief read through of the instruction manual is enough to form an early impression. Based on the number of components, the integration of lighting and sound, and the sequence of assembly involved, I would comfortably place this kit in the intermediate to advanced category. That is not intended to discourage less experienced builders, but newcomers may find themselves venturing slightly beyond their comfort zone on occasions. For those with a few book nooks already under their belt, however, it looks to offer exactly the sort of challenge a beginner can expect to cope with and that keeps the hobby interesting without requiring a degree in engineering to complete.

As is customary before any build begins, I spent a few minutes reading through the manual to get a feel for what lay ahead. At least, that is the explanation I normally give. Those who know me well are fully aware that my first task is toestablish the all-important book count and assess just how much time I’ll be spending folding, gluing and muttering under my breath. (see image 5)

I am delighted to report that this kit scores moderately in that regard. There are 30 books to assemble, along with a further selection that are supplied as pre-shaped components requiring nothing more than the application of glue. A few moments later and, as if by magic, you have another set of books ready for the shelves. It is one of those wonderfully simple ideas that saves a considerable amount of time without compromising the finished appearance. For anyone who has ever faced a manual containing 100 individual books, this approach can only be described as a win.

As we begin part one of the manual, my old nemesis made an unwelcome return – book covers that simply refuse to stay attached. It is worth noting that all of the books required a small amount of glue after the adhesive backing decided it would rather part company with the book than remain where it was intended. Regular readers will know that this is one of my pet gripes, and unfortunately Ludistri are not entirely immune.(see image 6)

One of the other things I do when inspecting any lighting system is check the PCB connectors. In my experience, these can often be the weakest point in an otherwise well-designed setup, and I will frequently reinforce them with a small amount of hot glue before the build even begins. Not so in this case. As the accompanying image shows, Ludistri have already taken care of that task, with the connectors neatly encapsulated and protected at the factory. It is a small detail that many builders may never notice, but it demonstrates a welcome level of attention to detail and an understanding of where problems can develop over time. Bonus points to the Ludistri team for saving me a job before I’d even started. (see image 7)

The quality of the laser cutting looked fine on first glance through the kit. But as the build progressed, a word of warning, readers, and remember I was only on page four of the manual at this point. Whilst I previously thought the quality of the laser cutting was satisfactory, some of the parts seem surprisingly reluctant to leave their parent boards, requiring what can only be described as a level of persuasion bordering on brute force. Be very careful where you apply pressure and, for the sake of your thumbs, use a pushing tool.

There are several parts which benefit from a quick touch with the sanding stick before assembly. Ignore this advice and you may find yourself wondering why a component that is clearly designed to fit appears determined not to do so. A light sanding of the tabs makes all the difference. This was particularly noticeable during construction of the bookcases on pages three and four, where a few seconds of preparation saved a considerable amount of pushing and grunting. You have been warned.

A small observation on page seven. At this stage you are asked to attach all the components assembled earlier onto a large, printed panel. Curiously, the manual neglects to identify which board you should be using. After a brief moment of detective work, it becomes apparent that the correct sheet is K1. To be fair to Ludistri, as it is a fully printed board there is very little chance of confusing it with anything else in the kit, so the mystery is solved fairly quickly, and may be the reason why it is not marked. (See image 8)

Nevertheless, it is the sort of minor omission that can cause a momentary pause in the build, particularly for those who like to follow the manual to the letter. It is hardly a major issue and certainly not enough to derail proceedings, but it is perhaps something the manufacturer may wish to address in future print runs. After all, every minute spent searching for the correct board is a minute not spent building, and we all know which activity is the more enjoyable.

As I continued winding my way through the manual, page eight provided a small surprise. Section three advises that the music box is available as an optional extra and must be purchased separately. Imagine my relief, therefore, when I looked across at the growing pile of components and discovered that the music box had, in fact, already been included with my kit.

On that basis, I can only assume that there are at least two versions of this particular model available, one supplied with the musical mechanism and one without. If that is indeed the case, it may be something Ludistri wish to clarify in future editions of the manual.

And while we are on page eight you are introduced to the various gears and cogs that form part of the build, but fear not they are decorative only. The quality of the laser cutting nowbecomes even more apparent. These are not large, forgiving components where the occasional imperfection might go unnoticed. Each cog contains numerous fine teeth, and yet every single one is cleanly cut, sharply defined and free from defects. I examined them closely, fully expecting to find at least one tooth that had failed to cut properly or required a little tidying up. Much to my disappointment as a reviewer, I found none. (See image 9).

In all seriousness, the level of precision on display here is quite remarkable. Producing this degree of detail consistently across multiple sheets requires not only excellent design work but equally high manufacturing standards. Both the design team and the factory responsible for producing the kit should be rightly proud of the result. It is one of those details that many builders may take for granted, but anyone who has wrestled with poorly cut gears in the past will immediately appreciate just how impressive this achievement is.

The traditional wind-up music box is fitted to board C using the three screws supplied, with the winding mechanism then attached to the opposite side of the board. Installation is straightforward enough and, before long, the build gains another interactive feature beyond the lighting.

As for the tune itself, I must confess I have absolutely no idea what it is supposed to be. It is certainly not the worst melody I have encountered in a book nook, although I suspect it is unlikely to trouble my personal top ten either. That said, music is a matter of taste, and these mechanisms are very much a case of paying your money and taking your chances. My suspicion is that it will appeal far more to younger builders than to those of us who have accumulated enough builds under our belts to recollect when a chart hit required a trip to a record shop. Nevertheless, it adds another layer of charm to the finished model.

Still on page eight and we start to see the lighting being installed, when I uncovered another small discrepancy in the manual relating to the lighting system. On page one there is a helpful diagram showing the five LED lamp heads supplied with the kit, each apparently identified by a different cable length. The illustration suggests that lamps two and three are of identical length, while lamps four and five appear to be different.

However, when it came time to colour-code the wiring loom, I discovered that lamps four and five are in fact exactly the same length as each other. In reality, the lighting system consists of one short LED (lamp one), two medium-length LEDs (lamps two and three), and two longer LEDs (lamps four and five).

This is hardly a major issue and certainly not enough to cause any serious problems during the build, but it could lead to a little head-scratching for anyone attempting to identify the lamps solely by their cable lengths. Given that the manual already relies on length as a means of identification, it is perhaps something Ludistri may wish to revisit in future revisions. As ever, a small note in the instructions would save builders from spending several minutes holding wires side by side and wondering if their eyesight is beginning to fail them.

On we go to page nine and, for me at least, it proved to be something of a disaster. Regular readers will know that I have a long and troubled history with miniature books, and just when I thought I had escaped the worst of them, they crept up from behind and launched a perfectly executed ambush as the manual expresses a desire for me to build yet more.

Stickers failing is hardly a build-stopping issue, but it is a recurring irritation and one that detracts from what has otherwise been a very positive experience so far. If the printed sticker sheets are produced by a third-party supplier, it may be something Ludistri wishes to raise with their printer. The adhesive simply does not appear strong enough for repeated handling during assembly. Fortunately, a small dab of glue resolves the issue, but it is a problem that ideally should not exist in the first place.

A small word of advice when you reach pages five and ten. Items such as the cupboard doors featured in steps one and three are not shown with absolute clarity in terms of their final positioning. The illustrations are sufficient to point you in roughly the right direction, but not quite detailed enough to remove all doubt when it comes to achieving perfect alignment. (See image 10).

For that reason, I would strongly recommend resisting the temptation to reach immediately for the superglue. A good quality PVA or B7000 adhesive is a far better choice at this stage, as it provides a little working time to make adjustmentsshould a door end up sitting slightly off-centre. Ask me how I know. A few extra seconds spent nudging a component into position is infinitely preferable to spending the next ten minutes staring at a crooked cupboard door that has been permanently welded into place. Sometimes patience really is the better part of modelling.

Another small anomaly cropped up during construction of the gear mechanism on page ten. In sections five, six and seven, the placement of the various gears and cogs is not always as obvious as it could be. The manual does not identify each cog individually, so in some cases you are left comparing the shape and size of the component in your hand with the illustration on the page and making an educated judgement as to where it belongs.

Fortunately, the designers seem to have realised this could cause a little uncertainty because, by the time you reach sections three and four on page thirteen, the manual adopts a much clearer approach by numbering the cogs. Here the individual gears are identified more precisely, making assembly considerably more straightforward and removing much of the guesswork. It is therefore a little puzzling that the same level of detail was not applied to the earlier stages of the build. It is by no means a major issue, but it did result in a few moments spent playing ‘spot the cog’ when I would much rather have been getting on with the build itself.

A useful tip for anyone following along arrives on page seventeen, part nine, when fitting the side wall. If, like me, you find that the wall stubbornly refuses to sit correctly, don’t immediately assume you have picked up the wrong part or assembled something incorrectly several pages earlier. I may, of course, have briefly entertained both possibilities.

After a little investigation, I discovered the culprit was actually the upper floor section fitted back on page thirteen, specifically part J9. This contains a locating tab that should sit above the wall section installed during page sixteen, section one. In my case, the tab had slipped and was resting on top of that wall section instead, preventing the side wall from locating properly. The result was a fit that looked completely wrong and refused to cooperate no matter how much gentle persuasion was applied. (See image 11).

Fortunately, the issue was quickly identified and easily corrected once spotted. It is therefore worth taking a moment to check the position of that tab if your side wall appears reluctant to fit. A quick glance now could save several minutes of head-scratching and the inevitable questioning of whether you have somehow managed to make a mistake three pages earlier. As the accompanying photograph shows, the tab should be positioned above the wall section rather than resting on it.

The roof assembly is one stage where patience really does pay dividends. The large accordion-style roof section looks impressive once fitted, but bitter experience has taught me that these parts can quickly turn into a disaster if tackled with all the finesse of a bull in a china shop. Take your time and fit the side pieces first, exactly as the manual dictates, but pay close attention to their positioning. If they are the wrong way round, the tabs on the roof section simply won’t align properly with the side and rear walls, leading to unnecessary frustration. (see image 12).

Some builders advocate steaming these types of parts over a kettle to make them more pliable. Personally, that’s not a route I take, largely because the chances of Freddy Fat Fingers here ending up with a scalding are alarmingly high. Others recommend soaking the piece in warm water, but I prefer to treat it with the same tender care I would give a newborn grandchild. A gentle approach, plenty of patience and no forcing of parts has always worked perfectly well for me, and on this occasion the roof settled into place without drama.

The wiring runs throughout the kit are absolutely fine and should present no problems whatsoever, with one small exception. Lamp five, which is mounted in the roof section at the front of the kit, leaves you with a cable run that is rather more visible than I would personally like.

The manual advises securing the wire using the adhesive stickers supplied and, to be fair, that certainly works. However, if you look carefully at part N1, shown in section 17 on page 18 of the manual, you’ll spot an opportunity to hide the cable almost completely. By routing it up the side behind this part, the wiring tucks away very neatly and is barely visible once the build is complete.

Rather than using the supplied stickers, I secured the cable with a few small drops of UV resin, which held it firmly in place and gave a much tidier finish. It’s by no means essential, and the manufacturer’s method will do the job perfectly well, but as regular readers will know, if there’s an opportunity to hide a wire, I’ll take it. After all, the less wiring you can see, the more attention people pay to the model itself. (See image 13).

One rather odd situation became apparent as the build came to its conclusion. Whilst examining the front of the model, it is clear that the design incorporates sufficient space for a front dust cover to be fitted. Indeed, looking at the structure, you would naturally assume one is included somewhere amongst the components.

Unfortunately, no front dust cover is supplied with the kit.

Now, I freely admit I am something of a dust cover enthusiast. After spending hours assembling a model, the last thing I want is for it to become a permanent home for every airborne dust particle in the room. What puzzles me here is that Ludistri have gone to the trouble of designing the model in such a way that a front panel could easily be accommodated yet have stopped short of actually providing one. (See image 14).

As the accompanying photograph shows, the provision is there, which makes its omission all the more surprising. This is certainly something I would encourage Ludistri to look at in future versions of the kit. There seems little point in engineering a space specifically for a dust cover and then leaving the builder to admire the empty gap. Even if supplied as an optional extra, it would be a welcome addition and, in my view, would enhance both the appearance and longevity of the finished model.

Overall, this is a thoroughly enjoyable kit that delivers an impressive, finished display piece and provides a satisfying build experience from start to finish. The quality of the components is generally very good, the instructions are clear, and the completed model has plenty of visual appeal when illuminated. While the absence of a front dust cover is a puzzling omission, particularly when the design appears to accommodate one, it is not enough to detract significantly from what is otherwise a well-thought-out product. Minor niggles aside, this is a kit that should appeal to both experienced builders and those looking to progress their forays into the world of book nooks, and it earns a well-deserved place on the bookshelf once completed.

Oh, and that spec of 8-10 hours build time is actually reasonably accurate. (see image 15 completed build).

Pros

• Attractive finished model with excellent shelf presence.

• Good quality components throughout the kit.

• Clear and easy-to-follow instructions.

• Well-designed lighting system enhances the overall effect.

• Enjoyable build with a good balance between challenge and accessibility.

• Roof assembly, while requiring care, fits well when approached patiently.

• Suitable for both intermediate builders and those newer to book nooks.

Cons

• No front dust cover supplied despite the design appearing to accommodate one.

• Roof section requires careful handling and may prove daunting for less experienced builders.