11/11/07: Are You Being Servoed?

The main circuit has been tweaked in a few places to stop vehicles wandering off the guide wire. It is suprising how different vehicles go astray at different places. The Mercedes O.405 seems to be the most reliable runner and will cope with just about any discrepancy in guide wire position, the Porsche Cayenne is far more picky.

This month's work has been centred on fitting the servos that will operate the road junctions.

Starting with a standard r/c servo obtained cheaply from eBay, some 80 thou styrene sheet and a bit of foam camping mat...

The styrene is screwed to the servo to make two mounting bars and the foam is cut to provide a spacer...

The assembly is screwed in place underneath the baseboard...

...and a cut down servo-arm is fitted on top ready for the junction disc to be glued in place.

To date all the servos have been fixed in place and about half have had the routing disc attached. Once that is done and the control circuit boards have been built and installed it will be time to build a control panel, wire it up and test all the side roads.

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