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Corvis (temp bot name) rough ideas.

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  • #16
    Everything you seem to have chose for amour seems to be aimed at protecting humans and stopping bullets for armour. The air muscles come from BigDog. The weapon sounds utterly crazy... a carbon fibre composite, leaf spring crossbow?

    Ok, credit for looking into new technologies and materials, I have even considered the non-newtonian armour myself, but none of this will survive in battle. Period.

    I would go and look at the current machines. Looked at the fights. studied tactics. Checked out other build diaries.

    To put some of the forces into perspective... in this years champs some of the vertical spinners had some much power they could toss 13.6k robots 2.5m into the air. NST is cable of snapping 4mmx10mm Hardox bar. The heads of that weapon weigh about 1kg and spin at around 3000rpm. Its like 60cm wide. It probably hits with around 1000kg of force at full speed.

    LS4 bent 2mm of titanium like it was tin foil. Inertial XL can bend 20mm thick steel bolts

    Our machine Binky can toss a 17.5kg cooker 1m into the air, make it flip 3 times and still have enough energy to cut through 8mm of steel and cut a 30mm deep, 120mm long gash in solid concrete.

    Kevlar may be tough but against a 3.6kg disc with hardened tool steel teeth it will get cut like a hot knife through butter. It holds the wrong properties. Stick with materials like Titanium and hardened steel. Stick with wheels too. There is also the issue that as your walking method doesn't have 2 axis of freedom and there for would not gain the weight advantage. I also suspect that the air sacks would rupture due to the shocks in the arena. Or a single piece of stray metal.

    Follow the advice of some of the other roboteers and build a solid rambot to get the basics down. I started with that, I just added a 1.4kg spinning disc. Some start with electric lifters. Heck some don't even need weapons to be champions. Tiny Toon is a perfect example. I am not trying to dissuade you but the sport has been around for to long and each weapon type has become so optimised that no new tech, not even Nasa or military grade stuff, can change the game enough for a design like yours to survive.

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    • #17
      Originally posted by Eventorizon View Post
      Everything you seem to have chose for amour seems to be aimed at protecting humans and stopping bullets for armour. The air muscles come from BigDog. The weapon sounds utterly crazy... a carbon fibre composite, leaf spring crossbow?

      Ok, credit for looking into new technologies and materials, I have even considered the non-newtonian armour myself, but none of this will survive in battle. Period.

      I would go and look at the current machines. Looked at the fights. studied tactics. Checked out other build diaries.

      To put some of the forces into perspective... in this years champs some of the vertical spinners had some much power they could toss 13.6k robots 2.5m into the air. NST is cable of snapping 4mmx10mm Hardox bar. The heads of that weapon weigh about 1kg and spin at around 3000rpm. Its like 60cm wide. It probably hits with around 1000kg of force at full speed.

      LS4 bent 2mm of titanium like it was tin foil. Inertial XL can bend 20mm thick steel bolts

      Our machine Binky can toss a 17.5kg cooker 1m into the air, make it flip 3 times and still have enough energy to cut through 8mm of steel and cut a 30mm deep, 120mm long gash in solid concrete.

      Kevlar may be tough but against a 3.6kg disc with hardened tool steel teeth it will get cut like a hot knife through butter. It holds the wrong properties. Stick with materials like Titanium and hardened steel. Stick with wheels too. There is also the issue that as your walking method doesn't have 2 axis of freedom and there for would not gain the weight advantage. I also suspect that the air sacks would rupture due to the shocks in the arena. Or a single piece of stray metal.

      Follow the advice of some of the other roboteers and build a solid rambot to get the basics down. I started with that, I just added a 1.4kg spinning disc. Some start with electric lifters. Heck some don't even need weapons to be champions. Tiny Toon is a perfect example. I am not trying to dissuade you but the sport has been around for to long and each weapon type has become so optimised that no new tech, not even Nasa or military grade stuff, can change the game enough for a design like yours to survive.
      ok, so i could take each of the "new" ideas i have and fight them seperately as a smaller bot to prove the principle or not... Try a sheer-fluid-infused shell, seperately try the weapon... Each idea at a smaller weight and on its own?

      I'm up for that.

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      • #18
        Untitled1.pngreverse energy config. for an x-bow.. possible to attain several tonnes per square inch, depending on the cams, and the leaves.

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        • #19
          Bacon Wizard, nobody is actualy trying to dissuade you from building the next Warhead or Mechadon.
          But we have seen so many promising people overreaching and stop before they got anywere. And that is what we want to avoid.

          Also, you're welcome to sample the Bacon Explosion in the House of Chaos.

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          • #20
            The Long Journey,

            This sounds a really interesting project speaking as probably the only person with an active walker.
            I would say "give it a go" as a final goal.
            First I would say get a robot any robot. feather would be best and run it in the arena Scott bots make a simple kit that would do. you need this as walkers take years to get right when you do have experience of them. and it is easy to loose heart on the way. also you can learn what works and what doesn't with regards to weapons and armour. and get to meet the crazy crew!!
            next a test bed this would be first a static model on a stand or small none combat robot for the purpose of developing the mechanism. it sounds a waist of time but it really is the short cut. and will save you years!
            These things are complex, to give you some idea if you count everything, there are about 20 separate bits in one of Pilgrims feet alone! and there are eight of them, the legs are more complex and so the parts number is very much higher.
            Don't be put of but do understand the length of the journey you will be taking!
            If you manage this you will be Legend.

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            • #21
              That sounds like good advice.. I'm well aware that making a walker that can compete on any level, is a really tough gig.

              So yeah, develop the armour and weaponry using an off-the-peg chassis while getting myself involved, and meanwhile start work on a walking drive-train as a separate project running alongside. I like it. Good plan.

              Which is pilgrim? Couldn't see the mechanism in your spider-looking bot, and wondered if it's a klaan linkage, seeing as the other one is a theo-jansen jobby. I'm also on the look-out for any video out there of Anarchy from back in the day.


              ​
              Last edited by Bacon Wizard; 12 April 2013, 09:28.

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              • #22
                Originally posted by maddox10 View Post
                Bacon Wizard, nobody is actualy trying to dissuade you from building the next Warhead or Mechadon.
                But we have seen so many promising people overreaching and stop before they got anywere. And that is what we want to avoid.

                Also, you're welcome to sample the Bacon Explosion in the House of Chaos.
                ​Hehehe, that looks awesome!

                Comment


                • #23
                  Originally posted by maddox10 View Post
                  Bacon Wizard, nobody is actualy trying to dissuade you from building the next Warhead or Mechadon.
                  But we have seen so many promising people overreaching and stop before they got anywere. And that is what we want to avoid.

                  Also, you're welcome to sample the Bacon Explosion in the House of Chaos.
                  Hehehe, that looks awesome!

                  Comment


                  • #24
                    Pilgrim is the one walking round town. it is based on the Theo system but with some changes the obvious one is it has 8 legs Theo has minimum of 12 so the gait had to be re-designed big time, can't go into it now.
                    yes the Klaan system for the Spiderbot I don't like the gait as much as Pilgrim as it tends to bounce the robot when Spiderbot walks fast.

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                    • #25
                      I don't see how you say yours don't have 2 degrees of freedom. They do! back and forward vs up and down. But my understanding is that using a rotary action to drive them is no longer counted as true walking.

                      This is the only pic of Anarchy's drive train I could find. Its tiny, but can see quite well how it works.

                      Scuttle_Side.png

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                      • #26
                        That wouldn't count and I don't think you understand what a degree of freedom is

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                        • #27
                          Originally posted by typhoon_driver View Post
                          That wouldn't count and I don't think you understand what a degree of freedom is
                          Are you sure Gary? Its one of the few mechanisms that was allowed in Robotwars... I was going to use that mechanism at some point. Who would we have to clear it with in order to be allowed the weight increase?

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                          • #28
                            I have discussed this at length many times on the forum before and I am not going to do it again.
                            I still think the 2 degrees of freedom rule is too restrictive, but I am alone on this. (interpreting the rule means both of my walkers are now downgraded to shufflers)
                            If the 2 degrees of freedom rule stays, and it will, there will be no fighting robot walkers on the scene.
                            Why? Simple they would be too slow, expensive and complex to be used.

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                            • #29
                              Yes I'm sure and it may have been allowed in robot wars but then we now allow highers voltages than robot wars so things change.

                              With good reason it's difficult to make a walker in my eyes. That mechanism in a featherweight FBS of the sort like little spinner would be devastating as you could in theory have a machine with a 13kg disc on a brushless motor. You don't get the extra weight for nothing.

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                              • #30
                                So what would you say a degree of freedom is, then? I'm interpreting it as movement in one axis.

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