UGEARS Engine Clock 3D Wooden Puzzles for Adults - Mechanical 3D Puzzle Wooden Model Kits for Adults to Build - Functional Clock Kit with Moving Pistons Gift for Fathers Day - 265 Pcs

Great "puzzles" for an older person. Instructions very easy to follow, but you need to concentrate. Some parts very fine and easily broken. Looks great once built, but, it's an absolute bugger to make it work like it does on their videos. I've tried ALL of their remedies, even took it to bits again, but it stilll sticks and needs assistance to work. Recommended if you want something to keep hands and grey cells busy.

Great model to build. Works and keeps time. Only criticism would be around the spring to key hooking system. You can't fully wind before the spring hook spins around the wooden key loosing tension. I found packing with a couple of folded bits of the glass paper helps stop this a bit

This was so much fun to make, so satisfying to make a clock that runs and there's adjustments that can be made to make it run longer, there's spare parts for the parts which are hard to release, so if you break one of those there's possibly a spare. I have made mine run for almost 7 hours!!

I liked supporting a Ukrainian company and that influenced my buying decision. The packaging and instructions were beautiful. I really enjoyed building the model and some aspects of it were well designed and clever, the rubber band feet for example, impressed me. One word of warning though, these kits aren't really designed for taking apart and so fixing problems once you've moved on to the next stage of constriction or are testing the mechanism is tricky. The model did work and kept time, and the production of the laser cuts was good, the prices snapped out easily and it was obvious which pieces to sand and wax, maybe I could have done with a little more wax than supplied. Overall I think it's a great company but the designs could be tweaked to remove some of the ambiguity in contruction and of the movement itself and to permit more assembly/disassembly to tweak or fix problems in the mechanism which would allow more learning/play. I would like the designers to focus more on the experience of the constructor and the desire to play with the mechanisms, and less focus on the aesthetic design of the finished model.

The media could not be loaded. Liked building it, clock doesn’t run very long,

This is brilliant, some of the instructions are confusing but UTube videos helped when stuck.So many moving parts once it is finished

I am a young 81yrs old, and love constructing these puzzles.

My husband has had other wooden models but this one just did not work once assembled. A clock would need to be rigid to work and there is too much flexibility with wood. Shame as it was a gift for him.The section below requires a childs age I think most children would find this far too challenging