Home > Walkers > Amphibious Mini Cooper

Amphibious Mini Cooper

December 13th, 2015 Leave a comment Go to comments

A walking/floating mod of the Lego Mini Cooper set. Features 12 moving legs and 2 propellers for movement in and out of water.


Completion date: 12/12/2015
Power: electric (Power Functions)
Dimensions: length 64 studs / width 30 studs / height 32 studs
Weight: 1.764 kg
Suspension: none
Propulsion: 2 x PF L motor geared 1.66:1
Motors: 2 x PF L motor

I have a history of modding the Lego 10242 Mini Cooper set, first with a tracked and then with a walking version. For a while it seemed like I couldn’t come up with any new mod, as making the Mini simply float on water was just too simple. Then I realized that my walking chassis is technically waterproof if driven by motors located above the water, and next the natural step was to install that chassis under some boat hull with the Mini Cooper on top of it.

My first choice of the hull was that from the Lego 60095 Deep Sea Explotation Vessel set because it looked really fitting with the Mini on top, but unfortunately it proved unable to support the weight of both the Mini and the walking chassis. I have therefore ended up using two #54100 hulls which didn’t look so well. The resulting vehicle was pretty heavy and the walking chassis was on the very brink of its load capacity.

Despite its crude, simple construction and generally wacky concept, the vehicle proved to work as expected – when tested in gradually filled and emptied bathtub, it could go from walking to floating and back seamlessly. It was pretty sluggish when floating due to two small propellers, but it remained perfectly stable and controllable at all times.


01.jpg img_1102.jpg img_1113.jpg img_1118.jpg img_1129.jpg img_1133.jpg img_1135.jpg img_1142.jpg img_1151.jpg img_1159.jpg img_1166.jpg


Categories: Walkers Tags: , , ,
  1. DroidekaOne
    January 1st, 2016 at 21:44 | #1

    Oops! I didn’t realize that the chassis’ instructions were already available! Thank you!

  2. DroidekaOne
    January 1st, 2016 at 21:17 | #2

    I want to race three Technic racecars that can jump, get good speeds, and be controlled by a single IR receiver.

  3. TechnoFan
    January 1st, 2016 at 17:27 | #3

    A Big Thank You i managed to make it rotate by rebuilding only the crane as there were many foolish people who told me to rebuild my entire gear box. You being a gamer which gaming mouse would you recommend to buy, is Razer ,Roccat or Logitech good to buy or any other brand that you can recommend.
    Thanks Again

  4. Sariel
    January 1st, 2016 at 02:48 | #4

    You must have made a building error somewhere, the only solution is to go back to where you started building the crane and build it again.

  5. TechnoFan
    December 31st, 2015 at 14:14 | #5

    Hi Sariel this christmas someone gifted me Lego Technic 42043 Arocs, I have already made it but the only problem is the crane of the truck is not turning properly do you what can the problem is. Can you help? Also when the monthly workshop video will be released.

  6. Sariel
  7. DroidekaOne
    December 30th, 2015 at 23:41 | #7

    How about a racecar that can jump? I haven’t seen one made of Technic.

  8. DroidekaOne
    December 30th, 2015 at 23:38 | #8

    Could you do another racecar?
    And if you do, PLEASE do instructions!

  9. Sariel
    December 27th, 2015 at 00:17 | #9

    Thanks, I got a few SW sets, reviews are coming soon 🙂

  10. TechnoFan
    December 24th, 2015 at 12:09 | #10

    Hey Sariel Wishing you a very very HAPPY BIRTHDAY and MERRY CHRISTMAS to you . So where’s the party tonight man and what are you getting on this special day.

  11. December 19th, 2015 at 00:38 | #11

    Oh no- not again!

  12. Sariel
    December 14th, 2015 at 19:50 | #12

    Thanks, I corrected it!

  13. Felix
    December 14th, 2015 at 18:04 | #13

    The short description directly under the large photo is the wrong one (it’s the one for the hamster mecha) …

  14. EV3fan
    December 14th, 2015 at 14:39 | #14

    With the Mini Cooper, everything is possible.
    Next Idea: a stretched (elongated in the middle) one (which, if you strech it enough, would even offer room for RC and maybe an extra function… 😀 ).

  15. EV3fan
    December 14th, 2015 at 14:36 | #15

    Thank you.
    Or maybe build a MINI Train? Or helicopter? Submarine? UFO? The possibilities are endless! 😛

  16. Sariel
    December 13th, 2015 at 13:10 | #16

    I’ve used GoPro 4 cameras: Session and Black Edition.

    That’s actually an interesting idea 🙂 It’s a shame the Mini is kind of heavy-ish.

  17. EV3fan
    December 13th, 2015 at 12:01 | #17

    Or maybe a super-fast Mini-Dragster with the tumbler tires and RC motors? 😀

  18. EV3fan
    December 13th, 2015 at 12:00 | #18

    Would a 6 wheeled monstertruck-mini be too common for you? 😀
    I’d love that!
    Keep up the great work!

  19. TechnoFan
    December 13th, 2015 at 06:42 | #19

    Nice mod ,one day you should definitely make the flying mini cooper. I am planning to buy a Lego technic set tell me is the Arocs Truck good or can you suggest me any other set which is good. Which underwater camera did you use? And my Super Mecha hamster will be ready by December 24 a very special day for you I guess.

  1. No trackbacks yet.