I have completed seven of the eight base modules for the micro RC race track and have finally gotten around to making a video of it, so let’s get straight into that…
It worked better than expected although the car wasn’t sliding on the plywood as it did in the earlier ‘Proof Of Concept’ test. I am not sure if that is because I have changed the trim settings on the transmitter, if the batteries are not getting a full charge or if having built up the track on the support it grips better for some crazy reason. The latter seems unlikely I would suggest.
My intent was to show a number of different layout options in that video but as you can see I broke a steering tie rod on the first layout so that was the end of filming. Reading around the forums I see it is possible to make tie rods for the Losi Micro Desert Truck and Micro-T using cable ties. I will give that a go as soon as possible and hopefully show you some more layouts before I start adding terrain to the modules.
As I move from building base modules into making terrain for my micro RC car track I have been developing ideas for terrain on each module. There are some obvious ones such as using paper mache or building jumps out of cardboard or wood but I found an interesting product at the Australian Toy Fair that piqued my interest. It was called ‘Kinetic Sand’.
The idea of using ‘sand’ with micro RC cars that are in the form of buggies, desert trucks and rally cars seems only logical to me.
This video shows what you can do with Kinetic Sand.
So naturally what I wanted to know is can I make this myself. I researching the possibility I found that Kinetic Sand is not something that can be made easily at home, but what can be made is what is refered to as ‘Moon Sand’. There are many recipes out on the web for moon sand and they are typically a mixture of play sand, corn flour/starch and water in around a 4:2:1 ratio (there are many sites with recipes but the pictures I have seen for this one appears to be a good consistency).
There are pros and cons to using home-made moon sand vs the newer, polymer based kinetic sands.
Home Made Moon Sand
Pros – Can make at home, cheap to make, safe Cons – Will dry out (although can be reconstituted), water based so may not be compatible with RC car electronics, can be crumbly so may get into RC car running gear, clean up may be difficult
Commercial Kinetic Sand
Pros – Won’t dry out (polymeric ingredient), safe Cons – Not sure if polymer ingredient (Polydimethylsiloxane) will be compatible with all parts of the RC cars, expensive, sand may get into RC car running gear
With either type of moldable sand I am really not sure of the compatibility with micro RC cars and what effect it could have on them. I think I will still make a small batch of Moon Sand to see what it is like. If I don’t like the home made Moon Sand then, after a little more reasearch on the polymer ingredient, I may fork over some dollars on the Kinetic Sand. Even if I don’t use it for the Micro RC Track it still is fun to play with!
Well, not quite, but the hard bit is complete at least. The lane markers have been slotted and mitred with the only remaining step being a coat of paint. I will show some details of the slots and mitres in a separate post.
Here are a couple of pictures that show a 600mm and a 1200mm lane marker coming together at a corner.
I plan on doing a little test run on the flat track with different layouts. After that it will be on to terrain and textures.
As the build progresses of my modular micro RC race track continues I have been thinking of the layouts I can have with the number of base modules I am making. My intent is to have a total of 8 modules but you can make a fun and modular track with as few as 5 modules as my proof of concept video shows.
Here are a few ideas for micro RC track layouts using 5 modules.
It’s been a little while since I posted here but rest assured, the Micro RC race track build is progressing. I have finished building seven of the eight base boards. The only reason I didn’t finish the eigth is one of the pieces of wood for the support structure was not straight. The base boards now just need the holes drilled for the lane marker dowels which I have done on one board as a test.
Here’s a few little pics of the lane markers on the base board as a work in progress.
The next steps are to finish the slots on the last few lane markers, mitre the lanes marker ends and add the dowel holes to the base boards.