NightRider – update b

I felt with courage to start the modifications to the bot, first I moved the battery to the lowest possible place, this makes the center of gravity lower.

With the electronics board all looks good..

I added a power switch and a Sharp Infra Red sensor, this sensor will act as a fail safe to avoid collisions.

I also wanted to create some kind of a shell, so went to 3D to design the plates and this is the result.

The plates will be cutted in laser or CNC, but meanwhile I will just print them and manually cut PVC sheets.

using graphite pencil to transfer the plate drawings to the PVC sheets.

All the plates are transfered and ready to be cutted.

The plates are cutted, now I will just sand a bit to give a final touch

All plates are looking good for now

Time to start with the supports for the plates, I will go to these small L shape things

All the supports are fitted, when we have loads of screws an electric screwdriver is handy, this one is the cheapest I could find

Now to fit the plates I will use this selftap screws, they come together with the servos motors, and I always harvest them because they are hard to find in hardware stores.

You can also see a hinge, this will actually make a door to swap batteries.

And this is how the plates are securelly fitted.

A look on the inside

This is how I managed to hold the power button in place, it is just PVC pieces fitted to the chassis, and then hold the power button with selftap screws.

There’s the hinge.

Testing everything, all look good.

I was doing another quick test when suddently smoke started to come out, it was the L293D that got smoked.. well, I couldn’t expect worse since I was pushing 12V to 4 motors and the L293D only handles 600 mAh per channel.

I will swap the board to the new Motoruino2 from Artica, wich is still a prototype but nothing better that this bot to test it.

NightRider update A

I wasn’t happy with the hacked chassis, besides the caster wheel was freaking out my wife because it was making a lot of noise on the apartment’s pavement. Luckily me I had another brand new chassis, and so decided to swap all the electronics to the new one, and the result is great, glad I did it! With 4WD it moves really quicly and its motion is much more stable, besides I am feeding the motors with a 12V Lipo battery wich gives it a great pump.

The experiences I had are very fun, and the torch light is a great addon.

I still don’t like the way it is, with the battery exposed on the top GC is very high, besides the pan/tilt is very shaky when it moves in full speed.

I tried my first FPV experience with the Quanum Goggle Set from HobbyKing and it freak me out, running the thing in full speed and all the shakiness made me almost to throw up (lol). The screen that comes with the kit is just great. I think I will buy another kit just to have another screen.

I stick to the screen and connecting the receiver to the TV wich is great.

For now I will try to stick all the electronics inside the chassis and probably will make a shell for it, or at least try.

F4WD + ball link

Four wheel drive vehicles have always excited my imagination, and this time I joined two Farrusco’s chassis in front to front as you can see in the picture below:


This way both chassis are fixed on each other (is this correct to say in english??) and I thought it would be cool to have them articulated in some way, so I started to design a ball link and this is the first output (oh, did I mention I have a 3D printer in the office? :D



It still need a bit of work because the link needs some kind of lock to prevent the vehicle to bend itself and touch the ground (gosh!! what a crappy english!!)



I used OpenSCAD to design the piece, it is a great tool to use because everything is made with simple commands and you can design pretty much everything!! You can download the OpenSCAD files in Thingiverse.

Screen shot 2011-05-05 at 11.07.32 PM

Screen shot 2011-05-05 at 11.05.23 PM

In the next chapter, the redesign!