activity 1.2.5a mechanical efficiency winch · web viewinsert subassembly 10 into building block...
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Activity 1.2.5a Mechanical Efficiency Winch
Equipment~30 in. masonry line
Weights approximately 100 g or 3.5 oz
Wire
Paperclip
fischertechnik® components:
a. Base plate x1 k. Building block 7.5 mm
x1
b. Interface x1 l. Building block 30 mm
x7
c. Power supply
x1 m. Building block 30 mm with bore
x2
d. Flat plug green
x4 n. Building block 15 mm
x3
e. Flat plug red
x4 o. Building block 15 mm with 2 pins
x4
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Copyright 2010
POE – Unit 1 – Activity 1.2.5a – Mechanical Efficiency Winch – Page 1
f. Mini-switch x1 p. Gear wheel 40
x1
g. Gear support with worm
x1 q. Metal axle 90 mm
x2
h. Motor reducing gearbox
x1 r. S-motor x1
i. Hub nut x1 s. Flat hub chuck
x1
j. Winch drum
x1 t. Clip 10 with spring ring
x2
ProcedureSubassembly 1: Attach end to end two 30mm building
blocks.
Subassembly 2: Attach end to end two 30mm building blocks. Attach mini-switch to 30mm building block side without bore and end without pin.
Subassembly 3: Attach end to end 30mm building block to 30mm building block with bore. Attach15mm building block with two pins to end of 30mm building block.
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Copyright 2010
POE – Unit 1 – Activity 1.2.5a – Mechanical Efficiency Winch – Page 2
Subassembly 4: Attach gear support with worm to S-motor output. Attach 15mm building block with 2 pins to side of S-motor. Attach end to end 15mm building block with 2 pins and 15 mm building block. Attach 15mm subassembly to side of S-motor.
Subassembly 5: Attach subassembly 1 and 2 to subassembly 3 and 4 as shown.
Subassembly 6: Attach end to end building block 30mm with bore to building block 30mm. Attach end of building block 15mm to building block 30mm.
Subassembly 7: Attach building block 15mm with 2 pins to building block 30mm at 90°. Attach end to end building block 15 mm to building block 15mm with two pins.
Subassembly 8: Attach subassembly 6 to subassembly 7.
Subassembly 9: Attach subassembly 8 to subassembly 5.
Subassembly 10:
Attach building block 7.5mm to winch drum. Attach winch drum to end of metal axle 90mm. Slide clip 10 with spring ring onto metal axle 90mm until it
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POE – Unit 1 – Activity 1.2.5a – Mechanical Efficiency Winch – Page 3
touches winch drum. Attach end of masonry line to building block 7.5mm.
Subassembly 11:
Insert subassembly 10 into building block 30mm with bore in subassembly 5. Assemble gear wheel 40, flat hub chuck, and hub nut. Attach gear wheel assembly to metal axle 90mm. Slide metal axle 90mm into building block 30mm with bore in support arm (subassembly 8).
Subassembly 12:
Slide metal axle 90mm into support arm (subassembly 8). Drape masonry line over metal axle 90mm.
Subassembly 13:
Bend paperclip into hook shape and attach to masonry line. Attach 100g weight to paperclip.
Wiring 1: Make two sets of wire with red and green flat plugs on each end. Set 1 should measure 12 in. long and set 2 should measure 6 in. long.
Wiring 2: Insert wire set 1 flat plug green into ┴ and flat plug red into + on interface.
Project Lead The Way, Inc.
Copyright 2010
POE – Unit 1 – Activity 1.2.5a – Mechanical Efficiency Winch – Page 4
Wiring 3: Insert wire set 1 remaining flat plug green into mini-switch socket #3. Insert wire set 2 flat plug green into mini-switch socket #1.
Wiring 4: Insert wire set 1 and wire set 2 flat plugs red into each other.
Wiring 5: Insert wire set 2 flat plug red and flat plug green into S-motor sockets.
Creating the Entire System
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POE – Unit 1 – Activity 1.2.5a – Mechanical Efficiency Winch – Page 5
Connect power supply to interface and test the device to ensure that the motor runs when the switch is pushed. Make sure that the gears mesh well together.
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Copyright 2010
POE – Unit 1 – Activity 1.2.5a – Mechanical Efficiency Winch – Page 6