ROKR 3D Wooden Puzzles for Adults Marble Run Model Building Kit(LGA01 Marble Night City)

The media could not be loaded. 11/12/22I’ve had this sitting on my kitchen counter for about 10 months now. It’s been a conversation piece and it’s been enjoyed all that time so it’s was definitely worth the hard work and time it took to build it. My wife even enjoys it being there. Kids seem to enjoy it the most and marvel at how it works.However, one energetic kid was a bit too forceful with it and broke off the handle. For longevity, you need to tell everyone to be easy on it and not force things since gear meshing etc can momentarily bind.FYI The handle attachment is a weak link which breaks before other more complicated pieces break. It is easily fixed by gluing a patch piece of plywood over the broken area.Original reviewI like the way this kit turned out a lot. The pieces are of high quality and fit together nicely. It’s a lot above average in difficulty and you’ll need persistence to put it together. Also there are a few areas that need tuning that I describe in my video. But once it’s tuned it works great. To summarize, you’ll need to a) add a guard rail to stop the ball bearings from occasionally exiting the spiral. You can use the left over original plywood cut out. Just find a 5” diameter guide pieces (I used 8mm film can) and use it to cut the outside diameter of the spiral. b) put a plywood wedge with 45 angle under one drop hole (finger points to location in photo) to kick the bearings forward and keep it moving c) add the correct number of spacer rings so the bearing drop freely between the plastic pieces and d) adjust the play in the flip-flop so it alternates properly. Mine works very well and people really like it as do I.

While this is definitely not for kids, I really enjoyed putting it together. The pieces are very accurately cut and well-marked. You have to be careful not to break them, some a pretty fragile. Once you get acquainted with how things go together it isn't a problem. I broke a couple of pieces, but they were easily repaired with some wood glue. The instructions are all pictures and some were a little small, but I took a pic with my phone and zoomed in to figure those out. There are also some videos that help (QR codes in the manual direct you to the videos.) There were a couple of times that i tried to make something work before completing the assembly and was worried that things didn't align properly, but later steps in the assembly fixed every issue. If you are impatient, or have trouble following instructions closely, this isn't for you, but I loved it. I ordered my second one just a few days after completing the first one. Highly recommended.

The media could not be loaded. I really enjoyed this one but found this one more frustrating than Spaceport. I broke more peices than on the other. There are some spots I need to fix and I'm going to connect it to the other with the link package. I'll update when I do

This is a 5 star product for me. I did break two pieces, some of the pieces were very difficult to push together, and it doesn’t work perfectly every time. I did also use a little super glue in a few pieces. However, the design of sending a few sheets of balsa wood, to make something like this had my wife and I blown away. It’s super impressive… I thought my 5 year old and I could do this together, not for kids lolSome comments reference a few of the issues I mentioned as reasons for knocking off stars, it’s a delicate, very elaborate, balsa wood marble theme ride… it’s not made of plastic and it’s not supposed to be a quick throw together project. The fun is in the assembly. So carve out a few nights, or weeks and enjoy this marvel!Thanks for a challenging and fun build. Highly recommend.

The media could not be loaded. This marble runner is an absolute hit! While it’s designed for kids, even adults will enjoy assembling and experimenting with it. The quality of the pieces is excellent, and everything fits together smoothly. It’s a great way to introduce children to basic physics concepts like gravity, motion, and energy conservation in a hands-on, engaging way.Watching the marbles navigate through the maze is both fun and educational. It encourages problem-solving, creativity, and patience as kids figure out different track design.Overall, this is a must-have STEM toy that combines learning with endless entertainment. Highly recommended for any child who loves building, experimenting, and having fun!

although, in my opinion, you need a steady hand plus patience, these kits are a blast. Some are connectable, others , free standing. If you you enjoy 3D puzzling plus a dash of creativity, check these out. The design is quite innovated. Assembly is adult oriented, the quality was on point for the workmanship. I had no missing pieces but have read reviews were this did occur. however, you can get replacement pieces by contact. Its functionality was a bit jittery, but this could be because of construction. they are a nice size to sit on a bookcase and sure to pike the interest of family and friends. After all, you build it.have fun...........Donnie P

This is not my first Rokr puzzle, and while I did find it difficult, as long as you follow the instructions carefully (very carefully) this is a fun and mostly fulfilling project. However, I like many other reviewers on here are experiencing marbles getting stuck on the track. I wonder if others are having the issue in the same location as me. The issue for me is in piece A28, which is sub part h. The thin wood seems to warp in a way that marbles get stuck in that section, which is unfortunate. I did make errors in other places, and corrected them. But I have triple and quadruple checked, and I built that section properly, and everything is seated fully. It seems this is an error, either in materials or design - the first corner bends up in a way that prevents marbles from going the distance.Still it was a fun and challenging build. I guess it's the journey, not the destination?