15 Items ItemName: Lego Control Center, ItemType: Set, ItemNo: , Buy and sell LEGO parts, Set complete (but without pen) with instructions and box. Set number: ; Name: Control Centre; Also known as: Technic Control Centre; Set type: Normal; Theme group: Technical; Theme: Technic; Subtheme. Set # TECHNIC Control Center. Theme: LEGO Need building instructions? Submit instruction page . Please visit
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The yellow output is labeled “A-B” and is controlled by the two yellow buttons on the left with the same labels. One buttons drives one direction, and the other reverses polarity and drives the motor the other way.
The motor drives a pulley through a belt hidden behind the turntable in lgo computer image. The plotter is an exceptionally unique model, and a good simplification of how real servo motors driven by a programmable system might be used.
The gears drive 24 tooth crowns. Finally, an 8 tooth pinion drives the outer ring gear of the turntable which has 56 teeth. Finally, an 8 tooth pinion drives a long set of rack gears. Once a memory is selected, you can instructiions Program and the system will record your inputs, including duration, and including pauses. The motor drives an 8 tooth spur gear into a 24 tooth spur.
The red and blue outputs are labeled “N-S” and “E-W”. This drives through a set of pulleys using a belt. The boom can only be driven one direction; you can’t go backwards. The remote control system has no means to lift the pen, so the plot is typically one continuous series of lines as shown in the example image. Both functions are controlled by a single motor mounted in the back of the arm and used as a counterweight. This axle then drives a set of 8 and 24 tooth spur gears followed by a set of 16 tooth spur gears.
Final reduction is about Each motor drives a pulley via a belt. Outriggers Four outriggers are located at the corners for stability.
Next, a worm gear drives a 24 instrucions crown.
A pair of 14 tooth bevel gears make a 90 degree turn and are followed by another pair. Note that, unlike the animation, the model can not rotate degrees an infinite number of times.
Model by Benjamin Wendl. This is an excellent example of the complex functions which could be achieved with a relatively small variety of parts. Because the 2 long arms of the 4 bar linkage are different lengths 1 stud differencethe arm changes shape and lifts.
The whole carriage slides on, and is supported by, tiles on the base. Next a worm gear drives a 24 tooth crown. This causes it to engage the gear system on that side. How is this possible? As the outriggers reach their most outboard position, the attached liftarms become almost vertical, supporting the weight of the crane without backdriving.
Based on the motor’s loaded rotation rate of rpm, the rotation rate of the arm is about 1. A Technic pen is clamped in the center of the assembly with a pair of threaded axles. Next, an 8 tooth pinion mates with another 24 tooth crown, which finally drives a 40 tooth spur gear. Then a worm gear drives a 24 tooth crown. When the last blue axle is locked, relative rotation of the red and green gears causes the angle between the yellow beams to change, thereby rotating the 4 bar linkage.
The pen passes all the way through the assembly to the paper. A pair rubber bands pull the pen down against the paper. The difference between these two types of motion can be seen using a close study of the animation.
The 40 tooth gear has a link attached to one of the off-center pin holes. This large gear then drives a 24 tooth crown.
Due to the geometry of the system, deployment of the outriggers actually lifts the wheels slightly off the ground. Final gear reduction is 3: Insfructions translate outward on tracks made from tiles via a rack and pinion system as shown in the computer image.
Each wheel is powered by an independent motor. Diagonal lines are possible by running both motors together, but tricky to do accurately. Remember those red and green gears in the image?
The other motor drives the slewing motion and is located in the base. The red buttons in the center control programming. In this position, the path from the motors to the end effector is as follows.
Click for an animation of the crane slewing. As you can see from the example image, it is pretty hard to draw anything coherent with this system, but it is fun to try.