DjuiinoStar Hot Air Stirling Engine Assembly Kit: Spend 30 Minutes to Build Your Own Stirling Engine

Cheap, fun, easy to assemble! Took me about 15 minutes. Quite noisy but impressively fast, made from inexpensive but sturdy metal. Tries to shake itself off the table, lol. Next project is to make a generator attachment to power something with it! Definitely happy with this purchase.

Easy assembly and worked first time. I did lubricate with powdered graphite. Really nice kit and the spare parts came in handy (retaining clips).

This kit was very rewarding to build. And super easy to follow the instructions, but as it says all over the product, you really need to know how it works to trouble shoot. Mine went together fine, runs great, but had a lot of issues keeping the flame on the bulb regardless of wick height, and the crank/conrods were a little crooked and wobbly. This caused the rods to rub the flywheel (super small tolerance difference nothing crazy) so I had to adjust the spacing, and ended up finding a little burr on the casting where the bearing inserts. The point of noting that, is an engine of any type is a precise machines device, and a beginner may not find little things that cause innefiencies. After a little bit of oil she runs silently, and almost starts on her own. Just a little nudge. Beofre I adjusted things she was noisy and needed a sharp spin to take off.

4 screws are missing. I have met with nothing but dead ends trying to solve this problem. I can't even contact the seller. Michael I found the screws and am quite embarrassed. They are very tiny. Michael I have assembled and it will not run. Checked assembly and will not run. Used denatured alcohol, will not run. Very disappointing. Michael Finally made it run...slowly. I believe my 7000 ft. altitude has something to do with the problem. Thin air. Michael Altitude had nothing to do with the problem. I cleaned the power piston and cylinder with alcohol. Black residue came out. It runs like crazy now. Michael

There were no missing pieces and it went together well, I built it easily and I'm 13. It's super cool and does take about 30 minutes to make.

The kit was a cakewalk (I dont actually know what that means) to assemble. Though I have had to take it apart and put it back together a few times it is very easy to do so. Take time with it and pay close attention to the pieces and remove any burrs, the tiny keepers are super easy to lose so put it together on top of a big table or something of the like. Make sure you grab some tweezers to make your job easier. Though at first it ran on low grade rubbing alcohol (lazily) you will for sure want to find the strongest stuff you can 99% works great. The issue is with the wick placement, in theory it's where it should be but if there is a draft or its winter on the palouse then you can expect issues. With high grade alcohol I had no trouble when the room temp was 62, with low grade i could feel it build compression but it would not run. All in all this is a neat kit and it taught me more than reading forums ever did, take it easy and have fun learning, be patient and you will enjoy it.

My 10 year old grandson assembled this with me helping interpret the instructions. Worked right off the bat. I like the attention to detail and how the kit came with extras of the tiny easy to lose pieces. A couple of things that maybe are in the instructions but I had to learn the hard way. Don't grease the hot side moving connecting rod or the cold side piston. I think they have to leak air for the engine to work. It was easy to clean up and get it working after I stupidly greased. The kit comes with a short length of clear tubing. This lets one cut new retaining bushings as needed. The ones on the hot side connecting rod seem to melt off eventually. I would buy this again.

Had a great time with my daughter putting this together. The instructions are overly complicated but if you look at the pictures and ignore the text it’s very simple.

Thank you hope to provide less expensive V4 engines.