Almost competition time! And with no moments to spare! I have now fully assembled my blades. After Tweedermeister suggested that my blades may deform quickly. I thought of some ways to mitigate this. I have given myself very little room to maneuver as I must satisfy a few constraints, which are significant and are:

I must attach it to a premade pulley
I must use two blades
The blades themselves must be less than or equal to 220g

With those in mind I cannot really use a full steal blades as they are to heavy and titanium is to expensive. So i resorted to making the blades out of aluminium but with titanium teeth. I also made a couple of spares just in case. The teeth were made out of 4mm thick titanium plate. I used a pillar drill to cut the holes, then the holes were countersunk. I then cut the teeth out with a hacksaw.

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The teeth were then press fit into the blade bodies with a little bit of epoy. For extra strenth i then screwed them in with titanium screws.

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This was the last thing I had to make. All I had to do was assemble my bot.

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I think i went a little bit overboard in the weight saving. I'm not a fan of the big holes i have left in the top so i may make a new one out of thinner material. But the bot is more or less battle ready, with the exception of securing my safety link.