Sir Spinalot

If you have spare weight, try and use it. First of all I would go for just 2x S28-400 Magmotors for drive, your shape means pushing will be difficult, so save on the motor and battery weight. €œ2000mm 8x8x8€? What kind of dimensions are these? Also I believe 2 metres is over the maximum size rules. €œ3x3x4 with a 7 distance€ also makes little sense to me.

Other stuff to include€¦ Is your armour a monocoque or is it attached to a frame? If so, give details of the frame. How heavy is your spinning bar? What voltage are the weapon motors run at? Do you have any idea of a kinetic output value? What batteries are you using?

This is a big improvement though, so well done. Now I€™ve just noticed Martijn gave basically the same advice.

Fire and Ice

Your dimensions need to be a bit bigger. Ground clearance at the front of your wedges can be 0mm as well. 10mm Hardox is incredibly heavy, cut it down to 4 or 5mm for the wedges. What voltages are your drive and weapon motors running at?

Nice design though, a few problems to fix and it should be good.

Nidhogg

Again, the dimensions need to be a little bigger. The Leeson motors you are using are probably fine but they are not something I am aware of. Personally I stick to just Magmotors and Lynch Motors, but that€™s up to you. Run the crusher of a Vivoil pump rather than the LEM130. Back up your pressure claims by giving details of the ram used to operate the crusher (eg. Bore and stroke size). I don€™t quite understand the lead screw either.

147

Change the front wedge to 4mm Hardox. As with Nidhogg€™s crusher, give details on the flipper and spike rams. Otherwise, that€™s good.

Gabriel (v1.2)

If you want me to suggest improvements for the other versions, I€™ll do that too. As Leo says, make it a bit bigger. Also, just run the motors at 24v, they are better suited to that. Give some more details for your ram. Again, a good start.

Sithis

Again, I€™ll look at the most recent version. It€™s simple, basic and effective. Lots more detail could be given, I€™ll give some pointers. I€™m guessing you have a frame chassis, so give us some information about it. How fast does your spinner go? That€™s pretty much all I can think of.

I€™m really impressed by the new designs and new competitors coming through. Great work everyone, I€™ve been harsh and picky and I still can€™t find much wrong with many of these vapourbots.