Yamix Full Metal Engine Model Desk Engine, Unassembled 4 Cylinder Inline Car Building Kit Mini DIY Toy for Adults

For me as a mechanical engineer this was a fun little project, Being all metal and a good representation of a engine it’s a step up from your normal car or plane model kit.I repainted some of the parts to reflect some of the hot rod engines you see on line. This can also be disassembled easily for someone else to enjoy

The media could not be loaded. Awesome, it works perfectly. Would highly recommend. Engineered, designed and manufactured flawlessly. Was a great build, enjoyed it so much. Would love to try more products from them.

not sure from shipping or from manufacturing. But the worse part, was the CRANKSHAFT was bent. Not just a little, but a lot.That aside, the metal finish quality isn't on par with something that costs this much. Some of the part numbers in the instructions are wrong, and one of them was corrected by hand. Again, something this expensive should have accurate instructions.I've been contacting them all week and haven't heard a response. They were quick to respond when I had a shipping issue, but silent since I've had this real issue. The engine is worthless in this condition.

Coolest thing I've ever built

Well constructed,good instruction Manuel.

This looks very cool to build, but it is in no way a Stirling engine -- it's a model of a 4 cylinder, 4 cycle gas engine that runs via two electric motors powered by a rechargeable battery. You can find a YouTube video of one being assembled on the channel "NDA Hack" titled "How to build Car Engine Assembly Kit - Full Metal 4 Cylinder" if you're curious.