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Use the LEGO Technic Power Functions Motor Set (8293) to power up your LEGO Technic models!Make your LEGO Technic models come to life with this exciting Power Functions motor set. This supplementary power set comes with motor, battery box, light cable and pole switch. Power up your LEGO Technic creations!
Manufacturer #: 4517455
Product Weight:0.4 pounds
Product Dimensions (in inches):10.3 x 5.4 x 2.0
Average Customer Rating:
(based on 46 reviews)
of respondents would recommend this to a friend.
Most Helpful Positive Review
Awesome add-on set.
Bought the new excavator, which was great. Took it one step further with the motor set. Turned a great set into awesome. The motor takes away the hassle of manually rotating the gear...Read complete review
Bought the new excavator, which was great. Took it one step further with the motor set. Turned a great set into awesome. The motor takes away the hassle of manually rotating the gear shaft. It brings the excavator to life. I like the motor set so much, I may have to upgrade to the infrared controller. Just wish the battery box was a little smaller.
Most Helpful Critical Review
Great product poor value as set
Great products, BUT I highly recommend that you check out the cost of the main components separately as it comes out a LOT cheaper.
Reviewed by 46 customers
Displaying reviews 1-10
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Great Parts but Poor Value as a Set
Comments about LEGO Technic Power Functions Motor Set (8293):
The parts in this set are great for getting your models moving, and lit. In most cases they can be fitted to the main model of a Technic kit in 15 minutes or less by following the extra instructions. Upgrading with Power Functions adds a lot of play value to a model. The value-for-money from this particular set has been eroded by the rising price. If you add up the cost of the main parts: Battery box, Motor, Light Brick and Switch then it comes to only 71% of the set price. The remaining gears and universal joints are not worth more than a quarter of the difference so the set price should be reduced considerably. Until this price discrepancy is fixed, I would recommend that you check the set you are upgrading with Power Functions and if the small parts are not used, just buy the individual Power Functions parts. Aside from that problem, the parts are really good. The battery box takes 6x AA cells. From one position the cell is hard to get out when you change them but a screwdriver at the positive end of the cell can lever it out easily enough. Having bought 3 of these kits and several Technic kits that each came with a battery box, I now have too many of them, but they have another use that is not so obvious. You can use an empty battery box to convert the 9V output of a mains-powered LEGO transformer power source to the Power Functions protocol. If you have a 9V train controller, or another source that connects to a 9V plug, then you can use a Power Functions cable (set 8886 or 8871) to connect the 9V plug to the (empty) battery box. If you also connect a Power Functions IR Receiver (set 8884) to the battery box then the switch on the battery box will connect the power source to the 9V and 0V lines to power the IR Receiver. It will work only one way round so check polarity before you leave it on for more than a second or two. If the green light on the IR Receiver doesn't light up then you have it the wrong way round; just move the battery box switch the other way. The Medium Motor has been around for a while now. It fits well with most theme sets and for the auxiliary functions of Technic sets (the drive function on anything large should use the L- or XL-Motors). It also works well in multiple. In PF trains it is advisable to use one Medium motor per bogie for a diesel loco, or consider an L-Motor or the Train Motor. The Light brick is brighter than previous LEGO light bricks and it is easy to fit the lights to a 1x1 headlight brick or into the holes in a Technic beam. The clear LED housings include a safety feature to prevent the lead being pulled out. The black brick half way along allows the wires to each LED to be thinner and hence to turn more easily and fit into cramped spaces. I fitted the LEDs to a semaphore bracket signal (2 signals together) with no trouble. The thin wires could be held easily by some parts with suitable slots. My largest project with LEGO LED Light Bricks so far is a lantern. It uses 12 Light Bricks, 1 switch and the AAA battery box (set 88000). When I used the lantern as a pantomime prop it lit up well enough for the audience to see the lights. It is also bright enough to see your way in a dark room. It was a challenge to fit all the wires inside but it helped to stack the plugs and black bricks in 2 groups of 6. The LEDs were inserted into Technic beams with yellow filters on the other side. The Black brick contains a bridge rectifier and capacitors so that the LEDs both light up with the polarity either way round and light up at the minimum speed setting of an IR Receiver (set 8884). This is good for headlights and general lighting but I would also like to see a future Power Functions product where the LEDs light up alternately with the change in polarity. This would be useful for a police car (2 blue filters), railway signals (1 red and 1 green) or trains that change direction (1 white and 1 red at each end of the loco). Perhaps this piece would have a different colour of 2x2 brick in the middle to tell users that it has a different function. I have experiments with a red/green multi-colour LED to make "searchlight" railway signals compatible with Power Functions, which will have red, yellow and green available from the same aspect, corresponding to the 3 states of the pole reverser switch. Whilst I might hope for that as another future product, it is less likely to happen. The pole reverser switch just changes the polarity. It does not isolate the power as the battery box switch does. Use the battery box for on/off and the switch for direction change. The pole reverser switch is versatile. It can be actuated from a lever or via a rotating axle from either side. A tiny switch on the back allows a set of switches to be made into a control panel and have their individual polarities set so that "down" always means "on" or whichever function you have assigned to it. An example is a railway signal box, where "down" means the points are set to the minor track, whichever way round the points are. I have put together a set of these switches to drive a set of PF Servo Motors (set 88004) to actuate the points on my railway layout. The universal joints work well and are an improvement over many years; they were in the first Technic sets in the 1970s. They used to be 4M long and are now 3M long so they fit into smaller spaces and fit better with the studless Technic system. The white clutch gear helps to prevent the motor straining if the function it drives has end-stop limits. It works well with limited-travel Technic set functions. The only application where I found its torque limit too low was in changing railway points quickly; it takes a lot of torque to overcome the resistance in the slider. It worked OK with various gearmotors up to the Medium motor but in location where I couldn't see directly it was better to use the Servo Motor instead because that has a built-in limited travel. The design of the 8-tooth cog has been changed now (the new one has better torque capability) so there might be a change to this set soon. The 24-tooth cog is a stalwart of the Technic system and useful for gearing down the motor (with the 8-tooth cog). In rarer applications it may be used to speed up the motor for a small propeller. I do miss the extra axle holes that were rotated 45 degrees compared to the centre axle hole. Those holes were used in the early Technic piston engines but their particular distance from the centre axle hole (0.707M) gave them another application because the stroke length of a small (1/5) pneumatic cylinder is less than 2M and the earlier version of these cogs with the 45-degree cross hole allows the cylinders to be made into a pneumatic motor or steam engine. Look on the Bricklink site if you need the old style cog for an application such as this. Overall there is huge amount of value in this set, once the price is sorted out.
Bottom Line Yes, I would recommend this to a friend
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(2 of 2 customers found this review helpful)
A little tough to put ...
A little tough to put together but my son likes it.
from Midlothian, VA
Very useful for beginners
A very useful set for beginners. Goes very well with other Lego Power Functions pieces such as the IR Receiver + Speed Remote Control, XL-Motor. I hope to someday use it with the Servo Motor.
A must have for your Lego Technic sets
By Lego loving father
from Anna, Tx
About Me Parent Of Two Or More Children
This kit will double the fun of your Lego Technic sets that are designed with power function capabilities. A bargain at around $35 it was totally worth it. I installed it on my excavator set and it works very well.
Great service, great price!
from Ipswich, MA
About Me Education Oriented, Homeschool Mom, Parent Of Two Or More Children, Stay At Home Parent
Your store offered the best price on the product I was looking for. It shipped out quickly and arrived faster than I expected. Thank you!
Great Lego product for great minds!
By Mom of Lego kids
from Long Beach, CA
About Me Education Oriented, Stay At Home Parent
This is so great, the power functions set turns regular Legos into moving ones! Make cars that go on their own, light up and everything. My son is an avid Lego builder and loves this set that makes his Lego building that much more challenging and fun. Takes Legos to the next level!
from Woodstock, Ga
About Me Grandparent
package arrived box crushed was sent in a soft mailer envelope looks used instead of new. Disappointed in that respect. Hope the parts work.
The power function is a great addition
from Los Gatos
About Me Stay At Home Parent
See all my reviews
The power function is added to some Technic Lego to add movements to the set. It is a great addition for more enjoyment play time. It added the sense of movement to cars, tractors and others. It teaches kids about gears and pulley.
(11 of 11 customers found this review helpful)
from San Antonio
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