Begin with a couple of 3x7 double angle beams as shown in Figure 4-6.

Add two 15M beams and one 11M beam (see Figure 4-7).

Figure 4-6. Step 1: Setting up the angle beams

Figure 4-7. Step 2: Adding some more beams

Now work on the other side with two more 3x7 double angle beams, as shown in Figure 4-8.

You’ll need supports as well; add one 3M and one 11M beam. Figure 4-9 shows how they go together.

Figure 4-8. Step 3: Making the other side with angle beams

Figure 4-9. Step 4: Adding two supports

Combine the two assemblies (Figure 4-10) and set them aside for now.

Next, connect two pins to an 11M beam as shown in Figure 4-11.

Figure 4-10. Step 5: Combining the two assemblies

Figure 4-11. Step 6: Connecting the pins to the beam

Next, connect an 11M beam (see Figure 4-12).

Take what you have so far (Figure 4-13) and build another one just like it!

Figure 4-12. Step 7: Adding the beam from the previous step

Figure 4-13. Step 8: Make one just like this

Add four 10M cross axles and bushes to one of the assemblies you built as shown in Figure 4-14, but leave the other one alone for now.

Add half bushes to the back to keep the cross axles in place as shown in Figure 4-15. (By the way, don’t use the yellow half-bushes we specified; you’ll need them for the clock’s hands.)

Figure 4-14. Step 9: Adding 10M cross axles and bushes

Figure 4-15. Step 10: Adding half bushes

Add four pipes and four more half bushes. Figure 4-16 shows how it goes together.

Add some 9M cross axles and bushes (Figure 4-17).

Figure 4-16. Step 11: Adding pipes and half bushes

Figure 4-17. Step 12: Adding more cross axles and bushes

Now let’s work on the motors. Add three 3M connector pegs as shown in Figure 4-18.

Connect a 7M Technic beam (see Figure 4-19).

Figure 4-18. Step 13: Add connector pegs to the motors

Figure 4-19. Step 14: Connecting the beam

Grab the second motor, and add three 3M pegs as shown in Figure 4-20.

Connect the two motors together with the help of the Technic beam (see Figure 4-21).

Figure 4-20. Step 15: Adding pegs to the other motor

Figure 4-21. Step 16: Connecting the two motors

Throw another 7M beam on there (Figure 4-22).

Add the motors to the structure you built earlier, as shown in Figure 4-23.

Figure 4-22. Step 17: Adding another beam

Figure 4-23. Step 18: Combining the motors and the assembly

Throw the duplicate assembly onto the back (see Figure 4-24).

Add six bushes as shown in Figure 4-25.

Figure 4-24. Step 19: Attaching the duplicate assembly

Figure 4-25. Step 20: Adding bushes

Add angle beams for legs. Figure 4-26 shows this.

Insert two 7M cross axles as shown in Figure 4-27.

Figure 4-26. Step 21: Adding the legs

Figure 4-27. Step 22: Inserting the cross axles

Two more angle beams complete the legs (Figure 4-28).

Let’s work on gears. Add a 24-tooth gear to the end of a 12M cross axle (see Figure 4-29).

Figure 4-28. Step 23: Adding more angle beams

Figure 4-29. Step 24: Connecting the 24-tooth gear to a cross axle

Thread the cross axle through the center hole, between the motors’ orange hubs. Figure 4-30 shows where to put it.

Build another gear and axle assembly, this one with a couple of bushes, as shown in Figure 4-31.

Figure 4-30. Step 25: Threading the cross axle

Figure 4-31. Step 26: Building another gear and axle assembly

Insert the cross axle through the topmost visible hole in the vertical support (Figure 4-32).

Secure the axles with two bushes each as shown in Figure 4-33.

Figure 4-32. Step 27: Inserting the cross axle through the top

Figure 4-33. Step 28: Securing the axles

Add two bushes and an 8-tooth gear to a 6M cross axle. Figure 4-34 shows how they go together.

Connect the assembly from Step 29 to the upper motor’s hub so that the top two gears mesh (Figure 4-35).

Figure 4-34. Step 29: Adding the bushes and 8-tooth gear to a cross axle

Figure 4-35. Step 30: Connect to the upper motor’s hub

Add a bush and an 8-tooth gear to a 4M cross axle as shown in Figure 4-36.

Connect the cross axle to the lower motor’s hub, and make sure the lower two gears mesh. Figure 4-37 shows how it all connects.

Figure 4-36. Step 31: Adding a bush and 8-tooth gear to a cross axle

Figure 4-37. Step 32: Connecting the cross axle to the lower motor’s hub

Add a 24-tooth gear and half-bush (Figure 4-38).

Add the drilled out 40-tooth gear. Make sure it rotates freely, then mesh it with the top gear as shown in Figure 4-39.

Figure 4-38. Step 33: Adding a 24-tooth gear and half-bush

Figure 4-39. Step 34: Adding the 40-tooth gear

Add the angle element and two pegs (Figure 4-40).

Connect a 9M beam to the 40-tooth gear (see Figure 4-41). This is your hour hand.

Figure 4-40. Step 35: Adding the angle element and pegs

Figure 4-41. Step 36: Building the hand

Build the minute hand out of a cross axle with end stop, three pipes, and two half bushes. Figure 4-42 shows the assembly.

Add the minute hand to the angle element as shown in Figure 4-43.

Figure 4-42. Step 37: Building the minute hand

Figure 4-43. Step 38: Attaching the minute hand

Next, let’s work on the button assembly. Add two double cross blocks to a pair of 6M cross axles (Figure 4-44).

Add two touch sensors to the cross axles as seen in Figure 4-45.

Figure 4-44. Step 39: Adding cross blocks

Figure 4-45. Step 40: Attaching touch sensors

Secure the ends of the cross axles with bushes (see Figure 4-46).

Add a couple of connector pegs (Figure 4-47).

Figure 4-46. Step 41: Adding bushes

Figure 4-47. Step 42: Attaching two pegs

Add a couple of connector pegs to attach the buttons (Figure 4-48).