Hot Model Cars, Rockets & Trains Posts

How To: Make a diet Coke and Mentos rocket

Do you want to make a diet Coke and Mentos Rocket? Well, first of all you have to buy a 2 litter bottle of Diet Coke and some Mentos. Then, go outside, because you don't want do it indoors, believe me. Wrap the paper cover off the Mentos, but leave the foil wrapper on and put the roll into the bottle. After this, you'll have to close the bottle and shake it. In the next step you'll have to open slowly the cap bottle until it starts fizzing. Throw it down with power and be sure there's no one ...

How To: Detect an air leak in a Nitro RC engine

In this tutorial, we learn how to detect an air leak in a Nitro RC engine. Air leaks damage your engine which will take your tuning and completely void it. Now, take some soapy water and apply it to your engine and anything that is connected in between. Block off one end of the host where you aren't going to blow into. Find where you think the leak is, then make sure you don't have a cracked tank. Next, make sure everything is sealed and apply soapy water. Blow in the other end of the valve a...

How To: Lay and ballast O-Scale 3-Rail track

In this tutorial we learn how to lay and ballast O-Scale 3-Rail track. First, lay the track down on a piece of bare plywood. Also, you will paint the wood to prevent it from absorbing liquid when you place glue on it. Put the track down onto a flex bed and then set the flex bed on the wood. From here, place the track onto the road bed and line it up. Make sure the track is centered completely. After this, take a track screw and secure the ends down. Continue to do this throughout the entire t...

How To: Make a sparkler rocket

Cut cardboard into 8" l x 3" w strips. With cardboard down on a cutting board, place 1 AA battery on 1 end. Roll once so battery is covered. Hold in place. Spread a light coat of Craft Glue in thin sections on the rest of cardboard. Roll battery up. Using electrical tape, tape roll together vertically. Wrap ends in electrical tape. Set aside to dry. Cut a 1” piece of putty. Cut in 1/2 through the middle. Once tubes dry, take 1 of these pieces. Pack it in tightly at end of tube to make a seal,...

How To: Make an awesome match rocket

In this video we are shown how to make a match rocket. You will need a lighter, a paper clip, a pair of scissors, tinfoil and some matches. Start with two matches and with the scissors cut the heads off. Using the stick of the match measure a square of tinfoil. Place the stick on one edge of tinfoil and roll a little lip around it. Remove the stick and place the heads in the lip that you just rolled. Place the stick in the lip behind the heads so that it is halfway off of your tinfoil. Now be...

How To: Use the correct tires for the temperature and improve RC performance

Optimize vehicle performance by knowing the differences between the different tires available for your RC vehicle. Each type of tire (commonly referred to by the red dot, blue dot or green dot) is optimized for a specific operating temperature range. Knowing about the different temperatures and what tires are best suited for them could be the difference between first place and second. Find out more in this instructional video.

How To: Make Robinson Couplings for water rockets

Learn to make Robinson Couplings for water rockets with this video tutorial. For this project you need aluminum and a plastic bar. You need to make the inner coupling on the lathe. Machine the aluminum bar to the right size and then cut the thread. Then drill the coupling hole. You then need to make the coupling nut. Then drill a hole in the nut. Next cut the inner thread in the hole. Then cut the nut off. Cut a slot in the nut with a hack saw. Then cut a hole in a bottle cap. Make a reinforc...

How To: Build extruded foam scenery

Here is a short tutorial for those of who wanting to build miniature scenery using a structure of layered foam. The adhesive not mentioned in the video is PL 300 foam. However, you can use any type of adhesive as long as its foam friendly. This two part instructional video provides easy and satisfying method of building miniature landscapes fro train sets, architectural models, and dioramas.

How To: Build the ultimate straw rocket

A very easy to make rocket made from a drinking straw, and launched using air pressure. Almost everyone will be able to make this, it does not require any hard-to-find items, but also can it be made in very little time. Therefore the rockets themselves will be very easy to mass produce. They will fly HIGH up in the air, and then land on the ground, completely safe! Use this doc for reference.

How To: Build a sugar rocket motor

Did you know that you can make a rocket out of stuff you might already have around the house? In this tutorial, you'll see how to make a candy rocket using PVC pipes, sorbitol (a sugar substitute) and other fairly common household objects. With just a little work, your sugar rocket will be ready to blast off into space. Sweet!

How To: Make rocket motor casings & nozzles

This video will show you how to make motor casings. You’ll need parallel wound paper tubes ¾ inch outside diameter, ½ inch inside diameter. You can make the same thing out of poster board and glue. In this video shows how to use the store bought ones. Use bentonite clay which is volcanic ash which is like a fine powder that when compressed down it becomes hard. This way you don’t need to wet and wait for it to . Add 1 ¼ clay and then ¾ increments, dump into tube and pound it down with a rubbe...

How To: Easily make a Coke and Mentos rocket

When it comes to building a Diet Coke & Mentos rocket, sure, you could probably figure it out yourself with a little bit of trial and error, but why be wasteful? Especially when the project is already wasteful by design. Better to follow this video guide, which presents a complete overview on how to build your own Mentos & soda-powered bottle rockets.