Great and Respectful Service I like EngineDIY because they always do what they say they will do. If you have any problems assembling one of their excellent kits, an email to enginediy.com will get you a quick reply. I recently purchased a very new model. Understandably, there have been a couple of production bugs, causing me to email EngineDIY to ask for replacement parts. They were sent to me without complaint as soon as they could source them. You are safe with EngineDIY. Recommended!

Steam Beam engine. I was pleasantly surprised by the finish of all the parts. More so by tiny ball bearings. Need to read double check instructions. Classic RTFI. Else go back undo, do again according to picture. Very free running with careful assembly. As much a display piece as working model. Note flywheel already has grub screw installed. Model even turned over on blowing into boiler. This the beam engine. Very happy. Only just enough screws:-)

Purchase of the year - very satisfied :) On 26 Dec 2023 I ordered Stirling Engine Model with Electricity Generator and Bluetooth Singing Tesla Coil in beautiful blue color. After 12 days, I recieve good protected package, with no damage, delivered direct to Switzerland. Perfect toy, no only for kids but also for engineers, like me :) , works perfect as described. Highly reccomended, I will definitely come back. Thanks :)

They don’t respond to emails regarding… They don’t respond to emails regarding their product once they have your money. I purchased 2 engines from them and they both don’t work. Don’t waste your money here

No customer service & they delete negative reviews I've made several orders from them and always got what I ordered. One expensive item (<$1K) arrived with some inexpensive parts missing. I provided them with the prod #, missing parts#, part description, & photos from their assembly manual. Many emails were exchanged. Still, the service tech was unable to correctly identify the part. He guessed at it and twice sent me the wrong parts and then gave up. When I wrote a negative review, they pulled it off their site.