Marxpek

better wait with that, you might win them? ;D

I love these compact designs! very nice work on the panels, gives it the real look! the weapon needs a bit more distance i'd say, maybe you have room for some pins in those orange angular beams on the drum? 3L pin pushed in from the back would never separate and have a bigger impact with the smaller area it hits. Good luck in the contest!

@PKWMade the digital file for it, my first attempt at LDD so i hope it is all right. would love some feedback on either the design or how i did the work in LDD http://www.brickshelf.com/gallery/Marxpek/moc/the_blacksmith.lxf it's missing a few minor parts (switch lock, the tires, s-brick and extension wire) couldn't find the parts or couldnt make em work in LDD The hammers as they are have some tension in them to make em more solid, not the Lego solution but better for battlebots, so they are built in 2 parts here, but they can easily be turned over for a true Lego connection with less tension.

Yet you didn't dare to post a video of yours launching mine, making me curious, but please don't reveal it until the contest is ready, it might loose you votes ;D (sorry can't help it i love healthy competition;D, not that we are in the same classe..) But with a 4 cm wall? was that a given fact to take into account? i imagined a wall like i recall seeing on battle bots (might be mistaking), roughly or slightly taller than most bots. i would loose any fight i guess, this thing doesn't stop for anything, if you run it straight into the wall it "climbs" the wall and flips itself, and it will hardly notice riding over a 4 cm wall, that being less than half the size of the tires, i really hope that 4 cm wall is not a thing ;D Nice to see my robot on yours in that picture, gives a better idea of its size, do you own the wheels and a s-brick to test it? i couldn't find any other option to make this system work, the connector and switch have 2, maybe 3 mm of clearance while rotating only option are the tractor wheels i think.

This thing cannot be controlled with normal ir- receivers i think, the sequences are essential for good timing and thus the driving, steering and slamming, also the 50% output joystick is a must to steer 100% output is just to much, even when you touch the joystick lightly (i ordered a gamepad but its late in the mail sadly) And indeed i can imagine that people think this is smaller than it actually is becuase they don't own these wheels. The hammers could use more attention yes, better would be to have a single hammer, i've tried to make them connect, but that gave me troubles steering (2 hammers provide balance aswell), i wont use it as an excuse (because im pretty happy about the result) but i found this contest just a week before closing, and with Easter obligations my time was limited to enter it, so i stuck to the working 2 hammer design. In addition to the: this thing must be built with a s-brick arguement: it flips by design, loosing line of sight to the controllers would be bad...

Thanks! It hits pretty hard with a full speed swing, (sadly due to lack of time to shoot video its not in the video) to me they seem the hammers with the most force in the competition. The hammers are heavy and pointy and hit with a lot of force on a small area. I would not put my fingers in between ?

I must say im impressed by its power. However this is just a battery box. I wonder if you could toss me over a wall. I doubt it!

i don't consider waiting a battle tactic ;D and i love to see you try to flip me with the hammer slammer sequence activated. I am not really know with digital bulding programs yet, ill try LDD maybe tonight, easy project to start with. Im using the app with 5 sequences and a joystick at 50% power, i ordered a gamepad for it, but its delayed in the mail sadly. Mr. cuddle is nice, but i consder it cute like its name, the claws don't close far enough i think and its slow, would be a fun battle, for me!

maybe.. if you are able to get near ;) i guess im 3x faster

@aeh5040Thanks, that was what i was going for, simple, hard to break, and hard hitting. And i do think it would win most fights yes :) it does not shake itself apart, the hammers reinforcements are under some tension by putting some lego plates in between. And the wheels are fixed aswell, a rubber band through the hub prevents them from comming off. The video is up in the entry section! but ill post it here aswell:

Get a better gps device then, my bryton rider 100e is very accurate in 1 second measurement mode, i never get weird measurements and all all graphs show perfect parabolic curves (and the graphs also include the speed measurements), i see no reason not to trust it. And measuring by rpm is not accurate, especially with high rpm on the lego speed computer; shave 0.1mm off the tire and it shows higher speeds then you are actually going.

thank you @mwnilsson sure we will keep in touch! nice way to "spy" on each others work ;) have you tried to improve your design any further? would be fun to keep pushing forwards ;) i already considered that double voltage design earlier, i suppose it could work with 2 switches in stead of the ir-receiver aswell but i never looked into it because i feel that it will be risking losing the buggy motors because of the voltage (they have internal resistor to limit the current, but it think the voltage can actually do damage, not sure tho) Maybe ill try the booster battery box setup i mentioned on youtube if i ever get a second rc unit, seems risky tho.. i addition to that idea: can the Lego led's be used as real diodes in that situation? I have no clue if that kind of wiring is possible, but a led is a diode letting the current flow only 1 way, could make the booster idea box work...

Impressively complex design! How do the wheels hold up? they seem somewhat vulnerable compared to the rest of the design. Very nice work!

Hmm you have any idea how much current they allow? stalled buggy motors take about 1,6A which is alot.. i wasn't aware there are different type of these boxes, any way to determine them? id love to do some testing.

The best looking bot so far! I love the power-layout as well, i was just wondering, can one batterybox handle the buggy motor? looks to me if the spinner gets stalled the thermal protector would kick in leaving the bot dead in the water. I tried 2 buggy motors on 2 battery boxes in my own design, that even gave me issues with the protectors, my design requires alot more torque though. But lovely work! if i get to vote (new here) you will surely get my vote for looks!

Hello all! I'm new to the forum and just tried to read this entire thread, it was quite a read so forgive me if i missed something. I must say i like what people are doing here!, as well as people's spirit to win!! I found this event on a youtube movie and i got exited and finished my bot now. In the meanwhile i already posted my entry, at the very end it smacks a few duplo bricks (3 second image maybe) but from this thread i saw this might be a problem? was just a funny shot to me, should i edit it out? i did see alot of movies with bricks, house and wheels for some demonstration so i figured it was ok. Re-editing wouldn't be a problem, but its not like that duplo part is the most impressive part of the video i think, just a funny "outro" Thanks for creating such a fun event! i'm sure to stay here on the forum!

I just love your flipper winch and release system, simple, powerfull and effective, the way it should be! Nice compact design and one of the more powerfull flipper systems, really well done! Seeing all these lovely designs really makes me want to have real battles with the bots, i really wonder how this one will battle my entry!

Hey that's my car! I'm new to the forum, nice to see you already found my video. @mwnilsson seems we already met online via youtube! Gps.. yes.. or speedguns even better.. but iv'e heard they can be inaccurate under 30 km/h, does anyone know? also check my rebuild with steering, standard 2 buggy motor setup and a well designed front end for high speed driving, works well!

Thank you! nice community here! is there anything i should do on the forum as a new member? i just rushed into this competition.. This design really requires an s-brick, the flipping makes the ir-receivers go out of line of sight, and the sequences prevent unwanted steering by not having to simultaneously press buttons or sliders in stead. And yes, a well deserved add for our friends from s-brick! Thanks for the tip about the link, i was a bit confused by the description so i posted them both. I just tried to remove the general discussion topic from the entry, but i don't see how to remove it. i know i'm a noob on the forum here... but i can't seem to just select and delete it when i edit the post. i don't suppose having the extra link matters much, but might be good to know for future posts.

Thanks, it works quite well as well, the video is up in the entry section. sadly i only just found out about the competition about a week ago, i actually created my account here today for this event :) i would have improved the design for a 1 hammer design, giving it more impact. I tried a single hammer setup but with 2 hammers the driving and stability improves, making the attacks more accurate aswell. And.. should one get destroyed by battle.... i have a spare..

21. CAT A: s-brick Name: The Blacksmith Signature move: "Hammer Slammer" Functions: high speed driving, accurate steering, automated hammer attack sequences by s-brick controll. "Forged in the heat of battle we present, The Blacksmith, a design by Marx. Faster than anything on the battlefield, it swings it's mighty hammers at it's foes at high speed, breaking armor, gears and spirits! This will be the dawn of a new time, HAMMER TIME!!!" Let me know what you think in the discussion topic or my own topic.

here some pictures of its workings and insides. The pictures show a simple solid frame, protecting the s-brick that exactly fits between these panels like this if you only use 2 ports. The design has 2 weak points; the electric wire and switch is exposed and the wheels can come off, both have been countered. - since rubber bands are allowed, i have fed a rubber band through the wheel hubs making them grip a lot more on the axles, its now more likely to remove the tire of the rim then to remove the wheel off the axle, the axles are the 5,5L axles with the little edge on them and they are held in place by the frame, the wheels will NOT come off now. - another few rubber bands hold the wire connection on the battery box down, should it get hit, it is now less likely to get loose (an actual string would be better) but i doubt anyone will try to get in my destruction zone, so you could consider it a lure to my weapon. The s-brick control consist out of 5 seqence buttons and a joystick 2 sequences for full speed forward and backward 2 sequences for spinning left and right 1 sequence for the "Hammer Slammer" function 1 joystick with motors output at 50% making it more controllable. Why all the sequences? well controlling it with buttons or sliders just isnt accurate enough, hit one 0.1 second earlier then the other button and you are steering in stead of driving forward. also the sliders in the sbrick app never provide the full power to the motors, the buttons and sequences do. The Hammer Slammer sequence is set to reverse the output of the motors every 0.4 seconds, making it slam the hammers every 0.8 seconds at the front and the rear of the robot. I will try to make a short video today off it destroying my floor, my wife hated this thing from the moment it switched on ;D

Hello everyone. I recently found some youtube video's of some awesome lego battle bots, looking further into that i found this contest, about a week before the closing date, so i rushed in. So i started designing and building eagerly, later to find out i had to create a topic with some pictures explaining the build. So excuses me that this is a bit of a reversed engineering photoshoot and im not known with the forum use yet, so i hope i can post everything correctly Here is what i set myself as goals: - fast - nimble - hard hitting - driveable on both sides. - simple (with little to no exposed moving parts) I think my design has it all. What i came up with is this: A powerfull hammer robot, powered by 2 L-motors, 1 sbrick and a large batterybox. The batterybox acts as a counterweight and the wheel axles as a pivot point, smashing the hammers when reversing the motors The idea is simple but execution was harder, i had to find the correct balance and get the room in the design so it could spin around the wheelaxles hitting nothing in the front and smashing the hammers. i could only make it work using the 42054 wheels. The design is fully flippable. I will edit this post more today with some pictures of it opened up.