Motorized Drawbridge • ME-7028

Build this drawbridge from PASCO Structures, add a stepper motor and gears, and write code to raise and lower it. This bridge kit also includes a Wireless Load Cell/Accelerometer to measure forces within the bridge while it moves.

How It Works

• Students build the drawbridge using step-by-step illustrated instructions. Then they use Blockly coding (embedded in PASCO's Capstone or SPARKvue software) to program the drawbridge to raise and lower.
• Three sets of gears allow students to investigate the effects of different gear ratios.
• The Load Cell can be added to various places in the bridge to measure loads while the bridge moves. The load is displayed on a graph in real time.
• The Load Cell can be used as a limit switch to stop the bridge movement when the bridge arm pushes on the load cell.
• The speaker in the //control.Node can be programmed to beep or play music to warn when the bridge is going to move.
• The accelerometer in the //control.Node can be used to control the drawbridge movement in response to a change in acceleration, such as simply turning the //control.Node upside-down.

What's Included

• 1x //control.Node (PS-3232)
• 1x Wireless Load Cell and Accelerometer (PS-3216)
• 1x Low Speed Stepper Motor (PS-2978)
• 1x Motor Mount (Set of 2) (ME-7020)
• 1x Gear Set (ME-7021)
• 1x Structures Counterweight (ME-7037)
• 8x Structures I-beam #1
• 10x Structures I-beam #2
• 3x Structures I-beam #3
• 9x Structures I-beam #4
• 10x Structures I-beam #5
• 18x Structures Connectors
• 100x Structures 6-32 Screws
• 4x Angle Connectors
• 2x Sliding Connectors
• 1x Structures Long Axle
• 1x Shaft Spline Adapter
• 2x Structures Axle Bearings
• 1x Structures Spacer
• 1x Structures Collet
• 4x 4-40 x 1/2-inch Phillips Screws
• 1x Storage Box