For a beginner like me. This model was the perfect starter. The assembly and operating instructions are clear and easy to follow. There are also plenty of YouTube videos out there for additional help. I love this steam engine and plan to build more in the future.
Although it is not finished, the build so far is flawless. No fitting issues at all and very, very clear instructions!
For everyone with interest in engineering, this is a must have model!
Ordering and delivery were outstanding!
Zero plain have great packaging, well detailed instructions and tools, all parts fits perfectly, could not be more satisfied.
I have bought other scorpions from other sites that are nice but instructions and some screws and bolt were shady.
The Zero plain is the gold and black and i have put another one bought on Alibaba with less detailes or preicsed parts, they look similar but i have put a closer picture on the dart, Black and gold is way more solid and detailed than the silver one thus the difference in price
Here are the instructions that was provided that didn’t show how to correctly plug the battery pack into the board. So then they said it was my fault that the board and motor got fried and that I should replace both at MY cost. Oh and also when I started to contact them about their horrible instructions they went on a “Spring Festival Break” which was very convenient. I wouldn’t recommend wasting your money on this horrible company. Also this is time 2 of trying to post the review so others don’t get scammed as I have.
Après de multiples recherches sur REVOL, je suis tombé sur ENGINEDIY, pour finalement jeter mon dévolu sur TECHING.
Les vidéos m'ont confirmé mon envi de jouer à l'apprenti mécanicien.
Je viens de finir mon premier modèle DIESEL vraiment réaliste.
J'attends avec impatience mon second moteur commandé chez vous: le RADIAL 5 CYLINDRES!
Délai de livraison: OK
Conditionnement: OK
Suivi: OK
I haven't started it yet but packaging is perfect, instruction book is very complete, all parts are well separated and clearly marked but like the picture shows, i'm doing another one (Black and gold scoprion )before the Big dude but i have no doubt it's going to be a very solid piece. Same brand and everything fits together.
The quality of workmanship was very impressive.
I ordered this Sempto engine but one logoed Otto showed up instead. I had orderrd the Sempto because another vendor was not very good at communicstions of a poorly handled shipping issue. But, I was onformed in a timely manner that my engine was out of stock but would be available in about 30 days. Cair enough. I REALLY appreciated that communique as the other vender I spoke of I bieve ran out of inventory and never shipped. Can not prove it but was given no clear reason to not think that is what happened. Anyway, I am pleased all around about EngineDIY's handling of this problem and will very likely order from them again. NOT that "other" place. (If you know, you know). This package came extremely well packed and was wtapped such that it appeared very water proofed with packing tape and bubble wrap. Which I was glad of. I ordered earlier the petrol conversion setup and the metal base package. I am anxious to get this one going.
It was a change of pace for me building an animal, I loved the intricate design of the gears and linkages, it kind of reminded me of clock making.
Every component of this kit exhibits world class manufacture using the best materials but the instructions leave out critical information for the best possible outcome for the kit builder. The full color pictures in the manual are worth a thousand words but a few more words would help the builder avoid several common mistakes that even the "experts" make in their on-line videos. The correct position of the counter weights on the flywheels in relationship to the crankshaft is critical to get the engine to operate as smoothly as it is designed to run. The recent addition of drilled and tapped jack screw holes on the brass axel locks now allow the fywheels to be removed or their position adjusted after being tightened and is not even mentioned in the instructions. These can be a lifesaver. Other tips like usiing the 5/16" end of a multibit screw driver to install the sparkplug would be helpful. The holes in my wood skid were not drilled correctly and had to be filled and redrilled to match the 4 holes in the cast iron engine base. The hole in the engine casting for the valve rocker push rod was not perfectly aligned and it was binding the rod enough to cause it to stick in operation. Light reaming of the hole corrected the problem. Over-all this kit has been a pleasure to build and a beautiful and excellent running model and I give it my highest praise. Watch the available videos before starting your build...they were extremely helpful. One star off for the manual falling a little short of what it could be.
I will give it a 4.5 stars. It’s a cool little engine! I like others have had issues with the side covers leaking oil, so I made gaskets. It helped, but with only one tiny center bolt to hold the covers on, it didn’t stop it completely. Really not a big deal now. Overall though I’m very impressed with the craftsmanship & attention to the mechanical detail on this engine! I really like it! I included a pic of it along with my balltop I really enjoy also. I’ve got more coming, so I’ll post more reviews.
Nice looking kit. Had fun putting it together and instructions were good.
Well even though my engine hasn't arrived yet I am gathering all the things I will need for the build. This switch module is a very well constructed part and was the second thing to arrive after the base and cradle.
I loved putting this little steam engine together and watching it run.
Instructions are very well done and simple.
All of the parts are of very good quality.
I look forward to buying more of these engines and would recommend this company to anybody.
These batteries were purchased in early Dec 2025 and arrived in late Jan 2026. As part.of a package offered by ENGINEDIY including servers for my Capo Queen RC. Once the package was opened, the battery packs were inspected and one pack had a torn hear shrink corner where the main leeds attach to the inside pack. I tested the sensor leed with my Specktrum XBC200 batt checker which read 0 for each cell. I also tested the main leeds sa.e result. The three stars rating is only for this battery, not the other products. This is either damaged shipping or manufacturing error. See photp
This engine is looking very nice, and well made. Fired up right out of the box, and running beautiful capable of very low idle speed. Very happy about this engine.
Words couldn't describe how happy I am receiving this Trent 900 replica engine. I love the attention to detail and how quick it shipped considering I ordered during the holidays. I would highly recommend it to anyone looking for a cool display with extreme level of attention to detail 😊
Hesitant at first with all the scams but bought it. The tracking info is slow and seems really shady. Nothing felt like a legitimate purchase and almost pulled the plug and had pay pal refund my money but decided to see it through because I needed the unit. I received a notice that it was delivered and immediately thought for sure it was a scam since I was outside at my house all morning.. checked the mail and nothing.. walking back to get my phone to start my claim and noticed a small package on a little table by my driveway... sneaky delivery driver must have been afraid of my pup but made the delivery successfully! This is my go to store from now on. Have patience and it will come. Purchase was exactly what I ordered and for a really good price. Thank you!
I’ve contemplated a lot if I should buy this but in the end decided for it during the winter sale, and it’s a great success!
This kit is very beautifully made, all parts look great, are neatly packed, everything matched perfectly and it’s been a pleasure to build the kit.
The only minor criticism were sharp edges on the steel parts, although once completed it is unlikely that you’d touch them. I’ve taken it as a feature and a little extra time with sanding the edges.
Once built the machine immediately worked perfectly well.
Two minor possibilities for improvement:
- When operating the machine you have to use tools or gloves, otherwise you’ll burn your fingers, on the steam valve and on the whistle. If these were coated with plastic that wouldn’t be a problem.
- The steam outlet just ends above the base plate. I’ve put one of the silicon tubes on (there are spare ones!) and stuck the other end into a small glass container.
Overall a great buy, thank you.
It is a very successful model. All the pieces are executed at an exceptionally good level. It is a model that should not be missing from the collection of an enthusiast. I recommend it with confidence
I really liked building the locomotive, everything went right, only had one snafu that I corrected as soon as I realized I had put a part on backwards, but it wasn't too bad to correct. My train is running perfectly though I haven't put the tracks together yet due to limited space but maybe in the future. I can't wait to put another Teching product together again!!
Excellent family project! Educational, very well made and parts fit together great. Definitely worth the fun!
I purchased the Teching V12 engine model from my friends at enginediy.com. As usual, their service was excellent and the kit of parts arrived on Christmas Eve.
Building the model was an absolute pleasure. I now have nine Teching models. All of them were a pleasure to build and, as always, I was delighted with the quality of the product; mechanics, its finish and aesthetics. Of all nine models, I consider the V12 to be their best one yet.
The V12’s kit was beautifully packaged, and all parts were easy to find. The detailed parts list at the end of the manual was very helpful (as with all Teching’s models). The instruction manual was excellent and complete. I only noticed two minor errors in the manual, but neither of these presented problems.
If you love precision, if you love to build detailed models and you love mechanics, buy this model. You will not regret it. Highly recommended.
I have not got my engine yet but the base looks and feels well made.
