Tip
Make sure you shield your electronics from the Meccano platform properly… I ran into some really strange problems with my robot. EMF noise from the motors made it do all sorts of strange things, and since the motor controller was mounted directly on the meccano, the meccano picked up the EMF noise and acted as an antenna and sent it right in to the L239D who just performed really weird 
Yes, imagine when you just
Yes, imagine when you just mount the Arduino on the Meccano and turn it on. For example the solderjoints of the Vin, 5V and GND pins will be connected to each other! That will short circuit your Arduino in a few seconds! Maybe you can see on the pics I placed the Arduino on a piece of paper.
Kind Regards,
Superpelican
1 reply
Yes, that is a problem too,
Yes, that is a problem too, but the metalchassies will act as an antenna for electromagnetic disturbances, so try to separate any electronic you use from the Meccano chassis. I mounted my motorcontroller on a piece of plexiglass and like a struck of magic it stopped doing things like going backwards although there weren’t any code for it to drive backwards
I find that a plastic of
I find that a plastic of plexi glass chassis is always better tan a metal one anyway, it much easier to work with and to mount sensors to in some occasions.
Meccano
I am thinking about to use the too in one of my projects but not sure about the weight. Since it’s habe of iron (it’s probably not steel 
) it will have a big impact on the total weight.