Rennuh

Short update on my bot. Even though it worked ok I decided to change the drivesystem of the disk so it is less prone to failure and also to create room in the 'body' of the bot. So here are some pictures, where you can still kind of see the inside, before it will be obscured by any 'armorplating'. Also as you can see I changed out the part sticking out of the disk for this part which is made of metal thus heavier and far more destructive. It can also be run in two directions now, one side for blunt hits and the other side to tear stuff off the opponent. It now also uses the inner output of the buggy motor directly, so less friction and more speed on the disk.

I agree with agrof, the 45 limit to diagonals doesn't make sense if you take in account all other rules like the actual size limit and the retractable weapons. A more logical rule to prevent the example that was given by Erik Leppen on the second page would be that the bot should be facing forward within the 45x45x45 box when in standby mode.

Yes that is clear but there have been two topic now where it did fit the box but because a diagonal or other line between two points on the outside of the bot was larger than 45, and that it therefore should not be allowed.

Because I didn't want to further occupy the other topic I'll ask here: This was said in aminnich's topic, but it causes me some confusion because these rules seem to conflict. I saw the picture by Erik Leppen and understand why one would say that's not allowed. But at the same time you would be allowed to make a square bot of 45x45 which would have a diagonal of more than 63, but that would not be allowed. So what is the rule? A box of 45x45x45 or a sphere with a diameter of 45?

Thanks, I'll move the discussion to the contest topic. On topic of your bot, I think it should be within the rules if it fits the box and hopefully it's not too much work to make it fit if it turns out it isn't allowed.

I'm sorry if this is not the right place to ask this but why are there these two conflicting rules about the size? If I make a square bot of 45x45 it would be within the rules but also not because the diagonal would be longer?

Wow that looks really destructive, have you tried letting it hit something? Hopefully it doesn't tear itself apart when you do that

Carbide was indeed a source of inspiration, I was first thinking about Tombstone but because of the size limits of the contest it would inevitably look more like carbide. The disk was more because a blade like in those two bots is almost impossible to make out of lego without it flexing, a circle (with the new parts) is much stronger. I thought so too before I started and actually planned on working with rubber band to drive, also to save the motor from the blows, but that didn't work at all. Just tested hitting a wooden plank and the chains held up, even when it came to an immediate stop. I'll show in a video as well when I'm ready to show some progress. But yes more ideally the motor would drive the disk directly even, sitting within the circle but that would require a non symetric disk and I'm not sure it would be strong enough then.

Yeah I picked the power puller wheels for several reasons, they are heavy, making the bot heavier thus harder to flip or lift, they are strong and could probably take a hit and like you said they are nice and large, which I need so it works upside down as well. And yeah I won't keep the battery box on top like that, it just turned out to be easy to temporarily mount it this way for testing. The next step would be to build the chassis really and add some strength. For the look and function of the bot, Tombstone was in fact partly my inspiration, also Carbide from Robot wars which I came across yesterday. I'll try to keep updating here as I go along

Hey everyone, my first post on here I believe but when I saw the contest I had to make something. So today I started my build and this is where I ended up so far: It was mostly to see whether it would work, especially the rotating blade powered by an RC motor. I'm pretty happy with the results so far, the chains seem to hold up much better than I had anticipated. Below is also a short video that demonstrates the power and it driving around a bit, which even though very simple seems to work fine. The battery box and receiver are just slapped on top for now to make it work, I've noticed that I'll need a separate battery box for the spinner as well so now it's time to figure out where to leave those, as I'm getting close the the size limit already. The name is not final by the way, I'm always bad at coming up with those sort of things.