Asbury Robotics

Richard
the Rolling Rover


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Build Log
:
Cut the Fiberglass 12x24 sheet down to 10"x24" using a table saw.  Drill the1/8" holes for suspension mounts and bearing/support brackets using a drill press. (holes are tough to see, but they are there).  Filed a grove for the lower suspension arms.
Cut and drill 11/16" holes in nylon brackets for axle mounts.  Brackets are 2-1/4" high and 4" and 2" wide (the bigger one goes flush against the suspension mount.  An extra indentation was added into the large bracket (using a grinder) for the lower suspension arm since it rubbed against the bracket.
Grind backs of  shock mounts so they can lay flush against the nylon bracket.
Mount inner and outer brackets and mounts onto board using 3x10mm screws.  Used 7/64" drill for screw holes into the nylon.  The 7/64" was small enough that the 3mm screws self tapped and locked into the nylon.
Drilled the 6mm hole in the axle connector to be 1/4".  This was much tougher than anticipated.  Went through about 5 drill bits.  The axle connector was very, very tough.
Inserted 1/4" bearings (11/16" od) into the brackets.  Inserted axle with timing belts and pulleys into the bearings.
Attached wheel arms to the mounts using Traxxas suspension pins.
Mounted Banebot motors using 10-30 bolts.  Motors are connected to drive train using sprokets and ansi 25 chain.
Close up of one of the motors.
Cut and drilled middle fiberglass plate (12"x24"x3/32" thick).  Cut it to 9"x24".
Attached middle plate, shock support arms, and shocks.
Added wheels.