Kaero

About The idea represents ball-and-stick models of molecules using LEGO bricks. Atoms are made of cubes with technic holes. Bonds are made using soft axles. Many chemical compounds can be easily and quickly created by connecting and disconnecting atoms. To represent valence electrons and bond abilities, the hydrogen atom has one connection point (one technic hole), oxygen has two, etc. Soft axles enable the creation of complex compounds with angled, double, or even triple bonds. Many variations can be made by applying different stickers to the top tiles of atoms. For a set, I have selected 80 atoms and an adequate number of bonds, for a total of 742 LEGO bricks. I have already successfully used this system to show my kids the difference between atoms, molecules, and various compounds. What you can see on the images All molecules in the proposed set. Selection of gases: ammonia, nitrogen molecule, carbon dioxide, oxygen molecule, and hydrogen molecule. Molecules of liquids: sulfuric acid, water, chloroform. Organic compounds: methane, ethane, methanol, ethanol, and benzene. Solid matter: a unit cell of silicon dioxide. Overview of atoms. Two versions are presented: the top one has only simple chemical symbols. The bottom one also shows the proton number and oxidation state. Photo of my real build of molecules. System The idea is the system. One can take only a few bricks and switch top tiles with stickers, or one can build a whole periodic table of elements. However, for most molecules, one needs multiple hydrogens, but helium is not used at all (because it does not create molecules under normal conditions). Changing bonds is very quick, so one can also demonstrate chemical reactions. Two possibilities For myself, I have used simple paper stickers with a chemical symbol, proton number, and oxidation state. The oxidation state was quite easy to explain; kids understood that the number of 'holes' in the element is relevant to the number of 'bonds' the element can make. Sulphur is good to show that oxidation states can differ. The atomic number was perfect for explaining why CO2 falls down to bottom in a standard atmosphere made mostly of lighter nitrogen molecules. The other possibility is to make stickers with only chemical symbols, as shown in most images. Because I had issues uploading images to the Lego ideas, I used it for most images. There is some rule that texts have to be readable, and in the first image, that was the only way to make all texts readable. Why Kids were asking about atoms/molecules/matter etc. So I thought I will find some nice chemistry system using lego and explain the topic. I have found several chemistry Lego systems or ideas, yet all seemed quite complex or too abstract. So I tried to think about something more easy to understand, and easy to build. If you like it, you can support it on Ideas: https://ideas.lego.com/projects/1f7cf61f-3858-4bf5-94bc-b28b32233232

Thanks a lot! I have added it, and I follow you at rebrickable, so I will be automatically notified if you make another wonderfull MOC.

It is definitely appropriate! Thanks for noting me about your MOCs, I will add them when I will get some free time. Rebrickable helps a lot, I will just follow you and Rebrickable will send me an email every time you add something. If you want, you can add your mocs to the list by yourself. You can fork the list on the github, add your mocs and make a pull request, however you have to know how git works. I am happy you found the list usefull!

Now I have reached 1000 entries in my list of LEGO rockets, spacecrafts and probes.

Select one of rockets here: https://kaerodot.gitlab.io/lego-rocket-mocs/

I have made an substantial update of my web page. Staistics: 374 MOCs of rockets and spacecrafts 220 MOCs of probes, satellites, spacestaions etc. 102 of other related MOCs

Lego Boost + 3D Pen = Lego 3D printer! Lego Boost provided 3 motors to control 3 axis movements and a 3D pen provided the filament extruder. The precision of the printer was much better than diameter of the filament thanks to the Boost motors with angle positioning. The precision could be substantially improved by building proper carriage movement by a real master builder. I had no additional motor to switch on and off the 3D pen extruder, so the 3D pen is set to continuous mode. Thus only simple objects can be printed. The printer was a learning project for my 8 years old kid. He learned how 3D printer is built, how it works and how it is programmed. He was able to program motor movements to 3D print simple pencil stand. It is quite hard to program every motor movements to print some object. Many free and open source applications are available for conversion of digital 3D objects into G-codes, i.e. motor movement commands. This way someone could make a full feature Lego 3D printer.

Really nice. I was curious about the slot on the side boosters between the booster nose and the booster body. In digital renders the slot looks very big, but as I supposed in real model it is hardly noticeable. You should add some photo into the lego ideas pictures (I wonder for most ideas - is it possible to build or is it some digital fantasy?) I thank you for sharing.

I have noticed your Ariane 5, it looks superb. Studio file is wonderful, thanks! I will add it. Was it built in real life already?

Chha: Thanks! I am happy you liked it, and thanks for the additional info, web is updated. It is my error I put scale 1:110 there. Maverick9154 claims this scale: "Custom LEGO SpaceX Falcon 9 Block 5 with Crew Dragon Instructions ONLY (Saturn V Scale)" However I am building classic Eiffleman's Falcon and I know the 4 stud width is optimal for this scale and the complex structure visible on Maverick's images cannot be Saturn V scale. I have seen it many times - author makes a nice MOC, but only by eye and the scale is quite off. This is the reason I did comparisons of V4, Soyuz and working on others.

Ah, now I understand you. Done.

It is there already: "Download source code or linux, windows binary, read help and how to on the source page:" Maybe grammar is bad? I am sorry I am not native speaker.

I could copy all the informations from the project webpage here, together with detailed how to use with all the images. The issue is, if something changes, I have to modify it on the project webpage and also here. This often leads to outdated information, just take a look at forums of other software, there is a lot of outdated things. But to click on the link and to read that for latest version one can download either source code or binary for windows and linux takes about five seconds. So I understand you want more informations here, but you should also understand that I like to keep data on one place.

done.

Thanks. The most important thing - let me know what you liked and what needs improvement. I have no idea what is workflow of other people.