Lego Clock R4 – Full Instructions

Designed by Roy Windle

www.clockanticks.co.uk

I hope you enjoy constructing and using the Lego clock (R4). This is a

challenging build, particularly in the final adjustments. So if you need any

advice, do make contact (mail@clockanticks.co.uk) or read the “tips” section on

the website www.clockanticks.co.uk. Here are some notes to help you get

started:

- The wood is enclosed as a mounting option, for you to paint or even wallpaper

the same colour as the wall. The large hole will hang off a nail and the two

screws pass through the lower rear crossmember of the Lego (just behind the

battery box switch).

- The instructions have been generated using MLCad 3.3.

- The majority of the parts are brand new, however, a few may be ‘nearly new’.

- Don’t expect the clock to work on the wall first time. Some adjustment will be

needed, such as:

o setting the axles & bushes so that all the gearing runs freely but

without too much play leading to clashes,

o position the rewind point correctly in relation to the string length,

o to set the clock perfectly level, adjusting the side-to-side tilt until the

ticking sounds regular,

o set the pendulum length and weight to fine tune timekeeping (it should

be precisely 1 second).

- And finally, do feedback ideas and comments to let us know how you get on,

with ideas to improve the design or the instructions.

Good luck, Roy.

mailto:mail@clockanticks.co.ukhttp://www.clockanticks.co.uk/

4x 4x

1

4x2

1x

2x

2x

3

1

1x

1x

1x

1x

4

6

1x

1x

1x

2x

5

4x

1x

6

2

Recommend using the gearwith the slightly different toothprofile to that shown, which may havelower running friction.

Throughout, ensure that all the axles are free spinning, but with no unnecessary free travel in the axial direction.

4x

2x7

3x

1x

1x

1x

1x8

3

2x 1x

4

1x

1x

1

6

1x 1x

2

4

2x

1x

1x

1x

3

1x

8

1x 4

1x

1x

2x

1x4

4

1x

2x

1x5

1x

4

1x

1x

1x

6

1x

1x

1x

7

5

Remember to tie and wind the thread at this point,with the free end leading down at the RHS of the bobbin as shown.

8

6

A unique feature of the clock,this differential gearbox allowsthe clock to rewind via the motor,raising the weight back up whilewhile keeping forward motion inthe escapement and hands

7

9

8

2x

1x

6

1x

1x

4x

4

1x

1x

1x

1x

1x

1x 3x10

1

2

3

4

9

1x 2x

1x

1x

11

At this stage, check that all gearing towards the escapement is as free-spinning as possible by turning the main spindle gear by hand.

6

1x 1x1x

1

1x 1x

2

1x 2x3

1x 1x 1x

4

1x 1x1x 2x

5

10

2x

1x

6

2x

2x7

1x 1x

2x8

2x

2x

1x

9

11

12

1x

1x

1x

13

12

13

1x

1x

14

14

1x

1x

2x2x

2x

15

1x

1x 4

1x1x

1

1x

1x

2x2

15

2x

1x3

2x4

16

Insert the studs into theindentations in the bush'sflange to lock plate's rotation

16

2x

17

17

Ensure that the upper pendulumis free to swing without any partrubbing against the side walls, with the pins engaging the escapement propellor

1x

10

1x

1x

1x

1x

1x

1x

1

12

1x 1x

1x

1x2

18

Ensure 7 units freespace between these bricks

1x

4

2x

1x

1x

1x

1x3

2x

1x

1x4

19

1x

3x

1x5

4

1x

1x

1x6

20

21

7

6

1x 1x 1x1x

11x

4

1x 3x

2

1x 1x

3

2x

1x

3x

1x

2x

8

1x

2x

4x 1x

9

22

1x 1x1x10

1x 1x

1x

1x11

23

1x

3x

1x

1x1x

12

1x

1x

1x13

24

Do apply different colour schemes to the numbers

1x

1x

2x

1x14

2x

1x

1x15

25

26

18

27

2x

19

28

2x 3x

20

29

1x 1x 2x

21

30

12

1x 1x

1x

6x

22

31

6x

1x

7x

2x

4x

1x

1x5x

4x

23 1

2

3

32

4x 1x 1x

24

1x 2x1

1x

4

1x 1x

2

1x 2x

1x3

1x 1x

4

1x

1x5

33

34

12

1x 2x

6

35

1x

1x

7

Mounting suggestion: this piece may be screwed to a mounting board, which is then hung from a pin

36

25

Adjustment will be needed betweenthe string and the rewind gearing tomake sure the rewind is actuatedwith a sufficient length of string, sothat the weight is not raised into thecasing.

1x 2x

2

1x

1

15

2x

2

12

1x

1x

3

37

38

15

1x

1x 2

1x

4

39

15

1x

1x

2x

5

40

26

411x 2x2x

4x

1x

27

Note the stringmay be passed either side of battery switch gear as shown

Note the single technicpin which is inserted into the battery box switch

1. insert 4x technic axle pins and lift arm triangles2. insert pin in switch3. connect electricity to motor, ensuring switch is not activated during assembly!4. Insert 2 quick release pins as shown.

1x

4x

1

4x

2x

4x

2

2x 2x

2x3

42

2x

2x

2x

2x

4

2x5

1x

1x

6

43

44

1x

2x

2x

1x

7

45

1x

1x

1x

8

46

1x

1x

9

Based around a 1 second cycle, bob position may be adjustedfor coarse changes to clock speedand small weights (eg addedbricks) may be attached low down on the bob stem for finetuning.

47

28

1x

4x1

1x2

24x 6x

3

2x

2x

2x4

48

2x

4x5

20x 6x

6

49

Weight box should now be filledwith 250g - 350g of ballast (bolts,coins, pebbles)

1x

2x

4x1

2x

2x

4

2x

1x

2x

1x

4x2

1

2

3

50

51

7

52

29

3x

3x1

1x

2x

2x

2

1x

2x

2x

1x

3

53

54

30

See www.clockanticks.co.ukfor hints with setting up.

No. Color Part no. Part name1 Light_Gray 59510c01.dat ~Electric Power Functions XL Motor Back (Needs2 Light_Gray 4697b.dat Bar pneumatic

14 Black 3005.dat Brick 1 x 113 Light_Gray 3005.dat Brick 1 x 115 Black 3004.dat Brick 1 x 24 Light_Gray 3004.dat Brick 1 x 2

12 Black 2454.dat Brick 1 x 2 x 53 Light_Gray 3622.dat Brick 1 x 3

18 Black 3010.dat Brick 1 x 413 Light_Gray 3010.dat Brick 1 x 47 Black 3009.dat Brick 1 x 62 Light_Gray 3009.dat Brick 1 x 6

23 Black 3008.dat Brick 1 x 85 Light_Gray 3008.dat Brick 1 x 89 Light_Gray 6112.dat Brick 1 x 122 Black 6112.dat Brick 1 x 12

44 Black 85080.dat Brick 2 x 2 Corner Round1 Black 3002.dat Brick 2 x 34 Black 3001.dat Brick 2 x 42 Black 3822.dat Door 1 x 3 x 1 Left1 Light_Gray 58121c01.dat Electric Power Functions 9V Battery Box (Comple1 Light_Gray 3024.dat Plate 1 x 12 Trans_Red 4073.dat Plate 1 x 1 Round8 Black 3023.dat Plate 1 x 22 Light_Gray 3023.dat Plate 1 x 21 Gray 3127.dat Plate 1 x 2 with Crane Hook Left6 Light_Gray 3710.dat Plate 1 x 43 Black 3666.dat Plate 1 x 61 Light_Gray 3666.dat Plate 1 x 62 Black 3460.dat Plate 1 x 83 Light_Gray 3460.dat Plate 1 x 88 Red 3460.dat Plate 1 x 85 Light_Gray 4477.dat Plate 1 x 104 Black 3022.dat Plate 2 x 22 Light_Gray 3020.dat Plate 2 x 45 Black 3795.dat Plate 2 x 64 Black 3034.dat Plate 2 x 82 Black 2445.dat Plate 2 x 12

12 Black 30357.dat Plate 3 x 3 Corner Round1 Light_Gray 41530.dat Propellor 8 Blade 5 Diameter4 Black 4286.dat Slope Brick 33 3 x 14 Light_Gray 4286.dat Slope Brick 33 3 x 12 Black 4287.dat Slope Brick 33 3 x 1 Inverted6 Black 3040.dat Slope Brick 45 2 x 16 Black 3665.dat Slope Brick 45 2 x 1 Inverted2 Black 4460a.dat Slope Brick 75 2 x 1 x 32 Black 2449.dat Slope Brick 75 2 x 1 x 3 Inverted2 Black 3704.dat Technic Axle 2

14 Black 3705.dat Technic Axle 45 Black 3706.dat Technic Axle 61 Black 3707.dat Technic Axle 81 Black 3737.dat Technic Axle 104 Black 3708.dat Technic Axle 121 Gray 6538a.dat Technic Axle Joiner9 Light_Gray 3749.dat Technic Axle Pin1 Dark_Gray 32271.dat Technic Beam 3 x 7 Liftarm Bent 53.131 Light_Gray 2905.dat Technic Beam 5 x 3 x 0.5 Liftarm Triangle7 Black 2905.dat Technic Beam 5 x 3 x 0.5 Liftarm Triangle

4 Black 32278.dat Technic Beam 153 Black 6541.dat Technic Brick 1 x 1 with Hole3 Black 3700.dat Technic Brick 1 x 2 with Hole4 Light_Gray 3700.dat Technic Brick 1 x 2 with Hole6 Black 3701.dat Technic Brick 1 x 4 with Holes3 Light_Gray 3701.dat Technic Brick 1 x 4 with Holes1 Black 3894.dat Technic Brick 1 x 6 with Holes2 Black 3702.dat Technic Brick 1 x 8 with Holes4 Light_Gray 3702.dat Technic Brick 1 x 8 with Holes7 Light_Gray 3895.dat Technic Brick 1 x 12 with Holes1 Black 3895.dat Technic Brick 1 x 12 with Holes4 Black 3703.dat Technic Brick 1 x 16 with Holes

21 Light_Gray 3713.dat Technic Bush9 Light_Gray 4265c.dat Technic Bush 1/2 Smooth with Axle Hole Reduced4 Gray 4265b.dat Technic Bush 1/2 Type 21 Gray 3651.dat Technic Connector1 Dark_Gray 6536.dat Technic Cross Block 1 x 2 (Axle/Pin)2 Dark_Gray 6573.dat Technic Differential New1 Dark_Gray 10928.dat Technic Gear 8 Tooth

12 Dark_Gray 3647.dat Technic Gear 8 Tooth6 Light_Gray 6589.dat Technic Gear 12 Tooth Bevel7 Light_Gray 4019.dat Technic Gear 16 Tooth1 Dark_Gray 6542.dat Technic Gear 16 Tooth with Clutch6 Dark_Gray 3648.dat Technic Gear 24 Tooth5 Light_Gray 3649.dat Technic Gear 40 Tooth

11 Light_Gray 3673.dat Technic Pin6 Black 32054.dat Technic Pin Long with Stop Bush

10 Black 2780.dat Technic Pin with Friction and Slots1 Gray 4262.dat Technic Plate 1 x 6 with Holes1 Gray 4442.dat Technic Plate 1 x 8 with Holes1 Gray 2719.dat Technic Plate 1 x 10 with Holes1 Light_Gray 731c06.dat Technic Shock Absorber 6.5L, Piston Rod with S1 Light_Gray 4716.dat Technic Worm Gear2 Light_Gray 3069b.dat Tile 1 x 2 with Groove4 Red 4162.dat Tile 1 x 81 Light_Gray 6580.dat Wheel 43.2 x 28 Balloon Small1 Light_Gray 732.dat Technic Shock Absorber 6.5L, Cylinder2 Light_Gray 87994.dat Bar 3L