Mini Hot Air Stirling Engine Model Generator Motor Steam Power Educational Toy

Don't know. Sent as a gift and not heard anything back yet. Not a thank you, not even an acknowlagement. Don't know why I bothered. I'm not bitter though.

Broke after about 10mins of running and lost compression due to melting.

This is a very cool Stirling Engine Generator model.I bought this set a few weeks ago, and the seller, MBLUE, was very helpful in providing a tracking number within a day of getting My inquiry.The Stirling Engine came already made in the Amazon delivery box, which I was very grateful for.(I'm no good at putting model kits with tiny pieces together)The Stirling Engine is beautifully crafted and designed in steel and brass metals.And starting it up was very simple.I just added some alcohol into the included burner container (Which was pre-packed with cotton material) and then lit it.There was a supplied flat and round magnet included on the model's base plate for holding the burner in place.I put the burner under the main piston and waited about 30 seconds for the piston chamber to get hot enough to power the kit.Then, a quick roll of the flywheel kicked the Stirling Engine into motion.Performance was VERY fast, strong and consistent, with no drop in speed until the burner flame died down.It was a joy seeing just HOW an External (Not Internal) Combustion Engine functioned by the movement of hot and cold air pressure.The ONLY thing that didn't seem to work were the two supplied white LED's that could be connected to the little motor (Generator) which was supposed to make them light up.I also found that the Stirling Engine itself always tended to stall and completely stop running when the LED's were connected to the Generator part of the set.But all of that aside, I don't really care about lighting some LED lights.All I cared about was the main kit itself being ready-made and fully functional, which it is!I imagine there are a few people out there who will use this Sterling Engine kit to power a few things, including a mobile phone charging machine.There are definitely a lot of possibilities for those who have the knowledge and ideas!The seller has been EXTREMELY helpful, kind and understanding, particularly when I was having one or two issues with using the correct alcohol for the burner, as well as getting the kit to function at its best.MBLUE Got in touch via email to send me a very helpful and informative PDF file on the kits maintenance and troubleshooting problems.I highly recommend the seller, MBLUE, and their cool little scientific model kits and other products.I'll definitely be doing business with them again.