The "Weigh In"

[slurp]

A couple if things for Tournament Registration.....

There are a number of checks that might be made to your Sumo 'Bot prior to it's entry. This is a guide to what you might expect but some of this may be waved by your Tournament Organiser. It's best to check before the day!

Is your 'Bot clearly identified?
Is it within the Weight limit?
Is it within the size limit?
Have you got your 5 second startup delay?
Are their any edges that might damage the Dohyo?
Does your 'bot stick it self to the Dohyo?

The size check may take the form of a 100x100mm box being dropped over your 'Bot.



Weigh in as expected, dropping your 'Bot on the scales. It may be worth having as few gramms that you can add or remove easily to ensure you don't go over weight (or too mucg under!).



It maybe that your 'Bot has it's timer check to see it's broadly 5 seconds or that you are asked to cover an edge that may score the dohyo. An A4 piece of paper is often used for the stick test, that is if the 'bot lifts the paper then your too sticky!

Check with the organiser, make sure you know that to expect!

Regards,
colin

[Gary]

In antweights (150g) the allowed weigh-in weight is 152g. This is to allow for the cumulative error between the builder's scales and the tournament scales. The AWS rules specify scales accurate to +/-1g.

For minisumo, I think the weigh-in limit should be at least 505g since scales are unlikely to be more than about 1% accurate, even though they may have a resolution of 1g.

What does anyone else think? Maybe the limit should be 500g (indicated) and we all have to have adjustable ballast to get close to the limit? This isn't really an option at 150g, but is fairly practical at 500g.

[slurp]

I believe there will always be problems with scales - maybe not so much if everyone uses some thing calibrated. It's usual for events to stipulate 500g as the maximum and that this is the international norm.


The builder can choose just how close they come to this limit. I would expect that they will allow for some adjustment to ensure they do not exceed the regulation weight.


It's common to see fixed weight bots, generally just under 500g. Personally I use a little copper coinage as ballast and can easily add/remove 1 or 2 pence to make the difference.


Two builders thought that their 'bots weighed 500g at AWS20, one was 480g and one 506g.... When it come to the crunch I would place it at the discression of the event organiser. In the case of AWS20 (again) the weight did not factor into the winning results - the winner was 450g.

best regards,
Colin