ROKR 3D Laser Cut Puzzles With Gear - Mechanical Model Construction Kits - Air Vehicle Model Building Moving Kit - Engineering Toys - Christmas Birthday Gifts For Teens and Adults

I like it but very difficult small pieces easy break thin wood I’m lot breaking wood difficult inside put altogether part woods so when you put Part wood altogether very carefully Very easy break it and very hard not easy make film altogether.

Bought for my brother in laws birthday, he has boundless patience with puzzles and I'm sure he'll enjoy doing it. Arrived promptly and pleased to say with no extra useless packaging!

Easier to install than others

Let's start with some important thing. This is made of wood. It twists, is is felxible during assembly is is semi rigid at the end. The instructions need a bit of enginnering mindset, but I loved all the moments of assembly. Lots of smart ideas, like having all the necessary jigs also assembled from plywood. Really great idea.Some hints, so you don't go postal (and the instructions don;t say it...)1. The metals axis holding the gears can turn, if you don't apply enough pressure while putting the yellow rings in place. Those are the very imprtant parts of the assembly. The position of the yellow plastic rings and the pressure will hold the gears in the right place and won;t let the rotate separately form the axis. Don't even think about lubricating the metal parts!!!2. I recommend starting with assembling the jigs. These are parts are named like T1-1 and 2, T2-1 up to T2-8 and T3.3. At the end, be sure the escapament wheel is aligned. In my case is wasn't and the gear train stucked. After slight adjustment it worker perfectly.4. I applied some grease on the gears. Less friction, less noise. Especially those, which spin fast.5. Is something does not work, remove the pendulum. At his moment, the gear train starts to accelerate and turn fast. If this does not happen, something is misaligned. Maybe the axles got out of the holes.6. The top of the assembly with the wood rods is trash. Also, if tyou tighten too much, it will apply extra force on the gears and the gears may stop spinning. Took me a while to figure out. Look at the frame from the top and the sides, it should be parallel / perpendicular.7. Don't buy it for little kids. This is not LEGO. For me it took about 4-5 hours to assemble, but I am an engineer. For others it may took longer. If you are a pro DYI guy, you can finish it in 2-3 hours.I enjoyed this a lot, would do it again.

I buy my grandad these, keeps his brain ticking over, he said this 1 was more tricky then the owl boat etc, which for me is a good thing as he's pretty good at building.Overall, 1 of the more tricky 1s which can be good or bad depends what you want

Love this puzzles if you follow the instructions you will have no problem. I had no problem with it. It had load spare part so Im happy with it. Infind doing these model very mediation took me 3/4 hours with interruptions but without interruption I would done in max 3 hours. If you sand every parts and wax some part and actually follow the instructions also on instructions sometime you have struggle then they have qr pic to show you how to it but I never needed them for last 2 model I have made so far.. finally I found right hobby for me do where before I use model planes and cars but I prefer this type of model than plastic models.. my views that company should keep making them and little bit bigger and model for experts cos model are bit easy for me but I enjoyed it.. if you gonna buy it my best advice to follow every instructions in book and takes time be patient.. you need lots of patience for any model...

Very good

Haven’t even finished creating the model yet but already looks great on my mantle piece ! It’s very fun to build and is tricky at some points which makes it a challenge. Highly recommend!