Qwerkbot+ » 8. Top Plate Modification

Required Tools

Image	Tool
	Phillips Screwdriver
	Crescent Wrench

Required Parts

Image	Part
	Four 4-40 lockwashers
	Eight 1.5" 4-40 bolts
	Eight 4-40 nuts
	Eight 4-40 washers
	NiCd Battery
	Four Felt Pads

1. Insert four 4-40 1-1/2" screws into the top plate such that the head of the screw is on the interior side of enclosure plate.


2. Place a washer and nut on the end of each of the screws to loosely hold the screws to the base. Do not move the nut further along the screw shaft.


3. Slip the pan servo in between the enclosure and the washers, as shown. The bottom servo’s wire should be near the edge of the enclosure.


4. Tighten the servo to the top plate with the nuts that you attached in step 2.


5. Insert four 4-40 1-1/2” screws into the under side of the top plate, in the same manner as in step 6.1.


6. Use washers, lockwashers, and nuts to hold the screws to the top plate. Place the washers over the screws first, then lockwashers, and finally nuts. Spin the nut by drawing your finger along its edge until it has traversed most of the bolt thread, then tighten it further by holding the nut in place with the crescent wrench while rotating the bolt with a Phillips screwdriver. The screws are retaining posts for the battery.


7. Center the battery between the retaining posts and then place furniture pads on it so that the fit is snug.

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