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About thekitchenscientist

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    Stephen Pearson

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  1. thekitchenscientist

    Pin Sorting Machine

    I would suggest a vibrating table feeder to move the pins to the colour sensor. Could something like the sail from the recent technic yacht give you a smooth deformable surface as an alternative?
  2. thekitchenscientist

    [REVIEW] 42079 - Heavy Duty Forklift

    I bought this set out of nostalgia for the forklift model 8835 which I enjoyed building as a teenager. When I opened the box and found instructions for the B-model, I built it first. It is a very nice build, not too much repetition, good use of parts and the tow-hook lift mechanism is very smooth.
  3. thekitchenscientist

    [MOC] Ocean Racer

    @TechnicSummse no progress since September. I barely got a replacement TC12 entry finished before a bunch of work/social commitments took over. Now the contest winners have been announced, I plan to get back to building.
  4. 25. Kid Cash's Caster Cube Kid Cash has been brought out of retirement, after a successful career racing for Shell in the 80's, to compete in the Wackiest race this year. The vehicle is of lightweight construction and has been designed to out-race rather than smash the opposition. HOG steering and flight. Fan propulsion. Slicks for street racing as well as a separate set of all terrain tires. The wheels are caster mounted for better manoeuvrability. Always up driver's seat with front & rear lights. Can flip the fans from back to top (flight) or front (rapid reversing) by rolling the entire vehicle. The video below shows how the Wacky features allow it to fly over obstacles and up cliff faces. There is space in the cube for a trusty backup vehicle. It is built from the LEGO Technic pocket money sets 42010, 42011, 42020, 42026, 42033 & 42044-47.
  5. thekitchenscientist

    [TC12] Kid Cash's Caster Cube

    With the deadline approaching I have found time to edit a short video highlighting the main features:
  6. thekitchenscientist

    [TC12] Kid Cash's Caster Cube

    I think it is close to being finished. I've reworked each face to make them more distinct. The engine now has a fuel tank and quad exhausts. The blades now rotate in opposite directions to enable a hover mode, to get out of trouble. It also means I can drive straight up walls and cliffs. The third mode is back to being offroad or rapid U-turn depending on the situation. There is potential for a bit more greebling but I think the concept is complete. It is clearly a Racer and has some interesting features. Much to my surprise it ended up being the less popular sets that have contributed most to this model (stunt plane, record breaker, twin rotor helicopter, hydroplane racer).
  7. thekitchenscientist

    [TC12] Kid Cash's Caster Cube

    Thanks @Saberwing40k. That was how I originally built it, but it didn't look as pretty as both turning the same way. @mocbuild101 as you say, does it matter? I guess I was trying to give it a shred of believability.
  8. thekitchenscientist

    [TC12] Kid Cash's Caster Cube

    Finally made progress and got the driver and propulsion system mounted. As you can see I have reworked some of the colours to give each face a more consistent feel. The rear outriggers prevent the vehicle from rolling on its side. If trouble is spotted ahead the front brakes can be applied to flip the vehicle onto it's face. The driver seat also pivots and the racer can now operate in heli-mode and fly over the trouble. I'm still trying to decide if I should make the third mode all-terrain by swapping the top set of slicks for off road tires? Any helicopter experts out there tell me if the blades should rotate in the same or opposite directions?
  9. thekitchenscientist

    Lego EV3 Program blocks help

    It should be a pretty similar program to the ones for finding the ir beacon. I would suggest you use a couple of array blocks to hold data from the light sensor. Pick a random direction (left or right), lock the steering, drive forward and collect a dozen readings to one array. Back up the same amount as you went forward. Set the steering to opposite lock and repeat into the other array. Whichever has the highest brightness is the direction to head. If no flashlight is detected perhaps steer a random direction to turn 90 degrees and repeat. I guess you will need touch sensor to locate the wall. The light sensor can also do this to give front and back coverage.
  10. thekitchenscientist

    Mindstorms EV3 reference guide?

    This is probably one case where what you are planning to build will drive the learning. I have found if I can write it in suedo code then I can translate to EV3 (or realise it is beyond what can be done with the supplied software). Blue Angel on YouTube has a good series of videos. Also the PC software tutorials are helpful in introducing the blocks logically.
  11. thekitchenscientist

    Need some help with programming LEGO mindstorms EV3

    The Programmer app or PC software will be required for what you are asking. You can create a loop that checks if the colour sensor has detected red, stop the motor, play a sound and then end the program. Once the program is on the Brick you can start it and also use remote control (IR) not sure about Bluetooth.
  12. thekitchenscientist

    [MOC] Ocean Racer

    There have been a few issues with the blending process and I had to let the model sit for a week whilst waiting on a solution. First I tried adding the rotor blades but the balance wasn't right. I had tried to include the tail section also but this didn't help. The solution seems to be to chop out the orange tinted sections and restore the control tower rather than use rotors. The deck crane had to go to make enough space. Now the real hard work begins. I need to restore steering, get the jaw working again and restore as much cross bracing as possible. It is the first thing to go in the blending process but in its current form the model is very fragile.
  13. thekitchenscientist

    [TC12] Kid Cash's Caster Cube

    The low profile tires have driven the next phase of this build. It may not look much different but the casters are now aligned on the non-panel faces. This has given the model a more defined front and sides. I had wanted to build a cube 30 studs to a side. This would have offered the driver a better view but I'm not sure it would be very strong. One of the things I like about this smaller design is the rigidity. You are indeed seeing my plan. I am working on this at the moment. Getting the balance plus style is not so easy. I was going to mount the fans in a gyro housing inside the cube with the driving seat in front. As other TC12 entries have found, such a mechanism takes up lots of space. I will mount the driver inside the cube and think again about how the fans might work.
  14. thekitchenscientist

    [TC12] Fire Ant - One-minute pitch

    Looking at the rear of the vehicle it seems like it could perhaps have a manual wheelie function, or fold up so the wheel base shortens. You have a good eye for clean lines.
  15. thekitchenscientist

    [TC12] Kid Cash's Caster Cube

    A short building update. There were sufficient 15 stud beams in the sets to create a cube. My original idea was going to be more bowl like. It was to be made of triangles with a caster at each point. In the end the parts didn't speak to me in this direction. A range of casters have been fitted to four faces. The low profile tires allow for panels and lift arms to be used as axle mounts. Having two fixed, two rotating casters is more stable and not much less manoeuvrable than four rotating. I think I may go with this design for all the faces.