Tree Climbing Robot

Step 9 Building the Frame

With the legs finished, the next step was to build a frame to hold the motors and legs together and in place.  I started the frame by making a plate out of aluminum to hold the motors together.  I drilled the plate to fit the screw holes of the motors and the gearbox shaft.  The motors are held in place by 3/32 screws.  

Next, I made a matching plate for the opposite side of the leg assembly.  This plate holds the legs straight while they turn.  I drilled holes through the legs, opposite to the motor hubs.  Then I bolted the legs through the plate with washers and a locknut to hold them in place and let them spin freely on the bolt.