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

My grandson who is 6 years old and I were able to put this kit together and have it running in a short afternoon. The parts are well designed and the instructions are good enough that we had little trouble understanding them. I had my grandson put most of the pieces together and tighten the screws. He is so proud of his little engine!

This engine is a fun kit and when assembled with care works perfectly. Go slowly and be aware the very small parts can easily slip away.

Fun to put together and run. If you have never assembled anything mechanical before, this could be quite challenging. Some very small parts to install which require a steady hand. nimble fingers, and good eyesight or a magnifier. Runs great but you need to keep it very clean or it will not run well after a while. I had to take some items apart and clean them after only a few runs but for those of us who enjoy gadgets, that's part of the fun. Overall I would say its a great item for the money. Not for young children without supervision as it involves an open flame and some parts get very hot when running.

Assembled easily in the promised 30 minutes. Runs nicely on IPA for about 10 minutes per filling. Kit was missing the two 5x3mm set screws, but had extra 3x3mm ones that worked fine as replacements. Directions were clearly translated into English, but with the pictures provide sufficient information to complete the build without issues. As promised, several parts are quite small.

East assemble and works great. I showed a few people and it blew their mind lol. i was asked why you bought that then once it was started and running they said oooowww and aaawwww. lol Well worth it.

This is a marvelous model. The castings and machining are impressive. Here is what I found in assembling it. 1. It needed gentle filing to remove a bit of casting from the outside of the hole so the bearing for the flywheel shaft fit. 2. putting the retaining ring on double stick tape affixed to a popsicle stick made pushing it on the shaft go well. 3. oiled the moving parts as they were assembled. 4. The small end of the pipette provided can be heated gently in a small flame and pulled out to give a small enough diameter to fill the alcohol tank through the vent hole.Very enjoyable, went too quickly.

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.

Just finished assembling this. It takes about 30 minutes. Some very small parts so keep your work area clean. It ran the first time with no issues. This kit is very well machined and well worth it. I particularly like the built in reservoir for the alcohol and all metal cylinders as opposed to glass ones.