Mould King 13112 RC Excavator Building Set, 1830 Pieces Building Blocks APP Remote Control Truck Construction Vehicles Model with Motor, STEM Engineering Toys for Adult

If you just want to build a unique and well engineered mechanical model for the joy of doing it, then this is GREAT value. If all of your problems are first-world, you have $500 to burn, AND you demand the absolute finest quality control in every respect, then buy yourself some lego and what are you doing even looking at this?Anyway, I was consistently impressed with the fit, design, and features throughout. The instructions are FINE. There was no point where the quality of instructions was nearly as low as the price. I expected absolute trash based on the price! But this set was clearly produced with much more care than chinas typical level of effort when producing knock-off type products. The parts fit together in a consistent and surprisingly precise way( not as good as lego but way better than COBI). They consistently exceeded my (minimal) expectations with sufficiently detailed instructions, and mechanisms which were engineered with a clear priority for high functionality and aesthetic over cheap simplicity.

Definitely advanced but a fun build and the controls work pretty well.

This is a difficult, but excellent build. I did not have one piece missing. You must pay of attention to the directions, especially the connections that are highlighted in red. I did have to take apart a couple of components, a couple of times. And rebuild them. But that’s the fun of it. There are absolutely no directions on how to manage the wires that run the motors. So I used small tie wraps to keep them tight and placed them in strategic pots. It was fun doing it! I did put in some photos in review of the wire management. I already have another Mouldking on order. I am 63.

It is an amazing product and was fun to assemble. But it requires (teaches) patience. With over 1,800 pieces, it was amazing how few spare parts were included. At least twice in the process, I had to undo as many as 20 steps to correct an earlier mistake. The biggest concern for me is that all the parts are snap-on and many will unsnap very easily.

Very cool build and machine overall. My 8 yo loved it. It’s impressive. Only complaint is the fact that you need to cycle between motor controls for different arm/bucket functions.

Missing pieces from each bag that has been opened. First missing piece was replaced after pictures, descriptions and verification of Amazon purchase order. Now after more missing pieces was sent an email to open all remaining bags to check for parts that aren’t supposed to be in them. Why aren’t appropriate items in correct bags? How many more parts are going to be missing from yet unopened bags? It’s not worth the cheap price for this item. Bought this for my children, so far a disappointment. This is what happens when you try to save money, you get poor quality and service. Stick to LEGO!

Really wanted a lego motorized excavator. Got this because why not? Its cheaper than Lego, they have customer service, and looks cool. I'm sold.The customer service is on the WeChat app; I'm not using WeChat. only found that out after opening the manual and see the WeChat app. Hope I don't need it and..... I need it. 1/3 way in the build at this point and got the tell tale sign of the great quality control of not Lego branded toys, not fully injection molded pieces. The pieces themselves feel very similar to Lego, but that doesn't matter if there's always a chance of this happening.Since I don't trusting an app owned by the CCP and I don't want to disassemble it to return it, I guess I have to wing it. Luckily i was able to move around others of the same piece around where it won't matter.This isn't even the end of my grievances. I used to build lots of Lego and including Technic style builds. Maybe this is because I'm too old to be playing with Lego, but the diagrams are not the easiest to read. Feels like I'm playing spot the difference when a step tells you to put a bunch of pieces where you can't see them and its a small diagram. I need to take out a magnifying glass because I strained my eyes looking so closely at the manual.It's just how packed some steps in the instruction manual can be.It felt like a chore building this. This isn't even complaining about needing 2 remotes, buying the 6 channel remote, or dealing with turning on and off one or the other battery box to fully control the excavator. I was about to pony up for the 6 channel remote. I don't care at this point, I held off building it multiple time, and even though I'm almost done, I'm still not finishing it. It's too late for me to return it, I regret not returning it when i got the not fully injection molded piece.That piece was the sign to give up all along.I bought this in November 2024 and still haven't finished it. I'm traumatized from how hard it is to look at the manual.2 stars only because if you can deal with something I can't tolerate, then that makes this not that bad. Won't be buying another Mould King product again.

I liked everything about this it was very interesting to build and to see how it all worked when it was complete. I would like to see Mould King make a variety of this same concept (farm equipment with farm attachment, Fire Trucks, Tractor trailers, and more construction equipment. I have built 4 already and have 3 more to build.