Category: Tech Tip – Tools

These are the tools to use to do professional lexan body shell work. One for cutting and another for making holes.

Yes, in theory 3D printing can achieve bilateral tolerances for shafts and holes in RC cars, but the precision depends heavily on the type of 3D printing technology used, the material, and post-processing techniques. FDM is commonly used for hobbyist 3D printing, but it typically has lower precision due to layer lines and potential issues […]

CNC machining is valuable for producing certain RC car parts due to its precision, versatility, and the high-quality finishes it can achieve. Unlike molded plastic, CNC-machined parts—typically made from metal or reinforced plastic—are highly durable and capable of withstanding the demands of intense RC car racing or off-road use. One of the main advantages of […]

The easiest thing you can do is to drill the screw until the cap is drilled away.

A lot of the time the charger gets overheated due to a defective or weak cooling fan. The photos below show the replacement of a 12V 2mm fan inside a BOL charger. They are pretty much self explanatory: You may need to solder the wire so to make use of the correct wire plug. And […]

If you are serious in RC then you will for sure need to use soldering iron to rewire stuff. When choosing a soldering iron we recommend that you pick one that is at least 60W. 20W and 40W are too weak – you cannot make good solder join under such weak power. 60W should be […]

Different tracks in different parts of the world have different conditions, which require different settings for performance to be optimal. Setup sheets are useful for recording the settings that you have used. The photo shows a sample sheet that comes with the 3Racing Xi Sport NU. You can download blank sheets from this location: https://os.3racing.hk/carkits_web.php?carkits_web_key=61&type=d

Generally speaking, there is no need to use locktite on a brand new R/C car unless the car is going to run entirely on bumpy tracks (meaning the car is going to shake excessively all the time). Frequent disassembly can make things loose, therefore you may need to apply locktite accordingly. It is especially suggested […]

If you find yourself confronted with a screw that is extremely difficult to get unscrewed, don’t use brute force (or you risk stripping the threads). Instead, give the screw a slight twist in the opposite direction and then loose it again. If this does not help, tap the screwdriver on the head with a small […]

Marui used to offer an electric drill set and an electric grinding set for modeling purpose. The good thing about these products is that they will never be over powerful when working on your RC parts. The bad thing is that they require manual assembly prior to actual use :< To avoid over power destruction, […]