Attaching the legs and final eletronics

With the axis's finished, I began to contemplate where the "fridges" would be picked up from. At the start, the idea was to like version 1, have the legs and structure screwed to a wooden base. This wooden base would be the floor of the warehouse on which the system would operate. Under this vision I began making the legs.

The legs were 30x30x3mm angle aluminum to make for very strong legs. These were cut to approximately 32mm using a hack saw. They were then all filed to be level and then screwed to the frame of the X-axis. However after all of this, the distance from the servo to the floor was much to high. Thus the original concept of a wooden base which the legs would rest on would not work. 

Instead, another design had to be made. I decided rather than have the legs rest on a base, that the legs would simply rest on the floor. The base for the system to would be housed in an aluminium frame which could be screwed to the legs. This way the distance from the servo to the base could be set at a reasonable height and changed if need be.

I would make this frame later and for now simply finished mounting the photo interrupter for the X motor. This was done just like the Y Motor but proved a lot easier since it was not a moving component.