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PKW

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  1. PKW
    This bot is awesome, really good work, I only think that the disk is too light to be effective at 1500rpm and maybe too off the ground to catch the most wedge shaped bots, but do you have lxf file of that? I think I may be able to build it and make a real fight (I only lack bionicle parts and the xl motor, but I may found some)
  2. PKW
    22. CAT B: PF IR Name: WHEELED SCORPION Signature move: flipper + lifter combo aka the launcher Size: H:16 W:25 L:32 Weight: 1kg Motors used: 2XL for drive, 1XL for flipper reloading, 1M for lifer Some more stuff: the weapon takes 3-4 seconds to reload and its drive is a 4WD one with skid steering, receriver are exposed for maximum efficency with the IR rays not passing trough bricks, but there is a lever that hold them so strong that you can hold the whole bot by a receiver without damaging anything. This bot aims to be one of the most compact of the competition, but packaging lots of high power functions together. It has an internal frame that make the whole bot really though without the need for external armor, and this allow not to waste power moving its own weight, being so small is not an handicap, its flipper can easily flip opponent up to 1kg, but if it success to go under the opponent with its wedgy design it can carry and flip even heavier opponents (tested up to 2 kg). The flagship of this robot is the reloading mechanism for the flipper, a lot of power is controlled by only one XL motor with a mechanism that is easily operated (reload and release) by only one channel. The bot can also self right and it use he weapon to do that, if the weapon is not reloaded when it get flipped then it can reload even while upside down, there are external cages and liftarms that were added not to make it stuck while trying to selft right! hope you like it, i've designed to show what real engineering is, and what it can create even with small sizes: a robot that can flip/lift/self right/push/and carry! here you can find some of the crucial parts of the bot: the weapon reloading system, the lifting system and the internal armor, all this screenshots were taken from the LDD editor and the lxf file is available for everyone! tc11_entry.lxf if you want to see real flipping, or the bot vs a fanta can, or you just want to know more about the building process you can take a look to the discussion topic
  3. PKW
    exactly this also because you are not actually using batteries as weight,but lego battery boxes, the fact that they are not empty doesn't mean that you are allowed to use 3rd party part (aka batteries) as a wight/power sources
  4. PKW
    thanks! as for the receivers, unfortunately they hare half system brick shaped so the front holes are just in the wrong place to be connected to other parts, but the whole robot ( 1kg) can be easily lifted holding it form one receiver (as shown in a picture) and nothing disconnects, this due to a 4 stud lever that hold the receiver from the less exposed side: and yes the string is exposed during reload (that currently takes 3-4 seconds) but the lifting wedglets can be used to defend it, also the rope is really strong and it is a way longer than needed, and this it because it works as entanglement weapon against spinners and various mechanisms tc11_entry.lxf here the lxf, so you can search for all weak points! just an advice, in order to build a really strong frame i used some "piece forcing" connection, so actually have no idea hoe to build this fro m scratch, what i suggest is to start from the weapon and leave the wheel holder as the last thing to build, because they are strong but by removing some pieces and bending others... well they are the easiest part to manually disassemble, i can only say that i first build the drive and then start attaching and reinforcing the weapon and i had to force/bend linages and pieces some times, especially when i forget to place something
  5. PKW
    thanks, yes you are right to say that there is not "exterior" armour, but this bot is so compact and has got so many internal linkages and reinforcements (most of them to hold the rubberband power) that can fall from almost 1 meter without any damage, i challenge other builder to do that! i'm also curious to see if there will be at least another flipper in there, but i'm currently the only one can't say i'm the only one with spring/rubberband powered mechanisms but talking about serious things (aka srimech , Self RIghting MECHanism) i've made a small video about it, th bot can both self right if the weapon is already reloaded or reload while upside down (this mean that the motor is both reloading that lifting the bot itself!). i'm currently working on the lxf file, hoe to share it ASAP
  6. PKW
    ops sorry i meant "motor-spam" is like if you receive a visual spamming of motors like other big entries have (4 xls on the regicide, plenty of L motor on son of aminch and so on) instead if someone looks at you robot form the exterior and from the driving performances it looks like there is some overpowered motor or some really complicated gearing, but there is like a good surprise to see 4 motors and the right gears combined to form a really efficient mechanism PS: the "motorspam" word come from my gaming slang, i haven't found anything to explain that but i found a lightspam example
  7. PKW
    Nuts guys would be proudisplayed of you! Just a question, if you activate only the xls then the power is limited by the L motors resistance while unpowered right? Because differential always redirect the torque and so of you require more torque than the one of an unpowered L you get that that motor will be turned by the xl and all this reduces torque and speed... right? All this was only to be sure to know how that mechanisms works, because I see that you actually don't need torque because you have a destructive signature move and so the fine control-low torque option will be really col to maneuver that, also considering that you can achieve different tuning radius (for example by going forward with one L and one XL you don't pivot but get a curve) and this is awesome because you are actually reducing the gap between sbrick control and lego IR control Also really good use of 2 battery boxes and 4 motors (you haven't created a notorspam robot) congrat! ps: Have you measured your bot rpm? Either theorical or by registering the sound of it hitting something while rotating and then count hoe mamy rotations it does I'm a second? Because if it rotates at more than 500rpm then, for the UK robot wars rules, you have a spinner robot!
  8. PKW
    Love that aesthetics and green color! Also really happy that you have no issues with th CoM (i thing the whole mechanism weight move it to the front enough to the front) also for what concerns steering speed/torque I checked my old mechanism and I was using 1:1 M motors instead of 1,6:1 so that helped too For the dummy wheels yes do that but some real bots or even some of my legs ones were trapped in the pit/edge of the area due to a caster wheel that fell off and prevent the bot to free itself! Ahahah never forget that robotics combat is also a matter of luck
  9. PKW
    Nope you have to remove either the front or the back one, imagine to create a shape connecting all the wheels on the point thy touch the ground, you need to have that shape to be as large and as short as possible (meaning that the "frent/back" of that is in the direction where the bot move) if you remove side wheels then you have same legnt but less width, instead if you remove the front or the back ones you get the same width but with half length (that's why 2 wheels are the best, became the footprint is like a line so a rectangular from with 0 length and some width)
  10. PKW
    that not actually true: being slow and with a really low turning speed it can be outmaneuvered by smaller and faster robot, and yes it has power but also a lot of side where you can go under it and lifting to make the bot loose traction and carry it whenever you want, also wheels are exposed and so spinner like son of amnich (that are not grabbable and not affected by the pushing arm) but maybe also the regicide can take out wheels and leave the bot immobile ;) Overall this bot is really though and this it a really good point but if i have to compare it to the other same-size same toughness competitors it lacks weapon effectiveness (not wepaonary! ahahah) so really good work but don't expect my "likeliness to win a battle vote" for you (but maybe the other metrics will matter more if votes are split by category? who knows....).
  11. PKW
    The bot is finished! enjoy last details and a small test with 2/3 power: this test show the actual reloading time and power: i added some srimech-helping devices that makes the robot back more round and helps it to flip back to its wheels and the battery box holder is now complete. as promised i modified the arm point so it is a completely new one (also more effective) and then i can say that even if ir receiver are exposed they are connected to the chassis in a really though way any thought or critics? what about the color scheme? do you want to see it self right? well just leave a comment so!
  12. PKW
    As pointed by erick leppen, why you used that gear ratio with xl motors? if stressed that mechanism can lead to slipping gears and so no power, the 4 teeth gears (the ones used for 90 degree gearing that comes mainly on yellow) could be used instead of the standard gearing, another question, do the bot self right? because i see a lot of ground clearance there. Overall you bot looks really cool and it is great to have a hidden weapon!
  13. PKW
    @Milan i was forbiden to use modular weapon or so chainging pieces between battles on my robot (so actually no manual function but different powered fuctions between battles) but are minor manual changes allowed? like i can tell that my bot has an easy was to add/remover rubberbands on its weapon in order to adapt to the opponent weight? also i can put a collage instead of 1 fo the three mandatory photos or it is like, "if i make a collage of 3 photos then they count as 3"?
  14. PKW
    I found that if you are only requiring to use gear on one side of the clutch then the half stud is not necessary, take a look at this file to understand what I mean: Example (LDD file of a moc)
  15. PKW
    Agree, back in black!!
  16. PKW
    I've never tried the new clutches bur I know that the old one offers a lot less resistance, have you tried them? Also with smooth 2M connectors, not grippy ones, that would may solve the problem
  17. PKW
    no need for rims if he uses only 2 wheel drive ;) good work so far, remind me of kan opener! and welcome back
  18. PKW
    thanks! and i'm quite near the final result! here a new video with 3 rubber bands instead of 2, unfortunately reload is really slow (maybe dead batterie maybe not, but currently i came back to two rubbebands: if someone complain about me using a dummy bot, that is a official set called "manas" and so it is nothing built and designed by me but by LEGO So in order to hold the power of the 3rd rubberband i changed and reinforced the mechanism really a lot: this initially limited the wedglets travel so i changed them (old one on the right, newer on the left) and i also gained an higher end point while lifting: (you can see the grey pieces near the L liftarm that blocks the travel on the old version) Then i finally put back the driving gears and unleash the real power of the 4x4 chassis: next step will be change the arm point (because it is the same of the old scorpion version) and then find a way to place receivers and battery boxes so they don't prevent the bot to self right..... yes it does!
  19. PKW
    yes! I have 2, form the original set i received when i was a child, unfortunately one is damages because it fell of a table, but still work.
  20. PKW
    Thanks for that file! Really interesting to look at, Aldo guessed your problem with turns, the real one is a lot wider and shorted than your square bot, but has wheels that in proportions are just impossible to motorze in lego (more ore less the size of a small gear) so you have a point on successfully build a really strange setup with lego and making it work good
  21. PKW
    I usually debate ruled for what they looks not to rule at all and instead is limited (ex: there was nothing about the dummy bot on the initial rule, and it was required to make a new decision to rule that) What I can say here "just to help debugging" is that lots of bots like brickwave do fit in the 45×45 square with a really high space but wasn't accepted due to the "ghost rule" of "nothing can be longer than 45 stud at its maximum extension" so what I think is that lot of people were first afraid that building a bot inside the square wouldn't guarantee it to be accepted, then due to misinformation and will to defeat this topic became a defeat fest, a more simple solution will be to ask everyone (and not only some builders with big bots) to measure bots with the 45L distantiometer used by amnich and assist them in the measuring/uploading photos on their entry topic, that will be athe least equal solution, maybe it requires more work from you moderators? Maybe yes but you are moderators right i think you can survive this. For future contest, just limit electronics, that was in tc6 and bigger buildings has to be unique in order to work good with restricted electronics: 1 battery box and 4 motor limit (as an sbrick, with only one per channel) would limit bots to a really smaller size than 45x45x45 and if someone want to go big then that will be hard and require really great skill not only a lot of pieces PS I have nothing against the size rules of this contest, but i don't like the difference between how rules are written and applied and this happened also in a lot of those topics (like almost copied build or not new ones being accepted and so on)
  22. PKW
    Maybe i've made some mistakes, but isn't season 3.0 where Sow first appears? And it was a shuffler bot there, instead i've found that the last version used on 2016 series (the one with the front wedge as yours) has got Only 4 wheels, it was too strand for that wheel setup to work good on a real bot! Ahahhah
  23. PKW
    Speed: really good Maneuverability: not bad for a car steering robot Axe power: not convinced but i think you axe+bucket will be a really great combo for grabbing opponents What I wonder is: are you able to push the opponent once you grab it? PS: you forget to show that bucked folding us powered! That could impress someone that think it can lift xD
  24. PKW
    Every battery box can run it if it has no load, but also all BB will have their protection limiting the current if you load too much the motor (for example by using the motor to power some high friction mechanism of to move a lot of weight)
  25. PKW
    A full body spinner (if I remember correctly)! That's fun, but so you'll enter your bot itself as signature move? Also you can attach some sort of flat arm to it:
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