Team Saint Robot Builds

[craig_colliass]

Making big wheels

The disc is made from HDPE 20mm thick.
First cut out the blank, Find were the centre for the wheel is going to be. then mark the position with a pen and centre punch the exact point.
I used some steel builders strap as the holes are punched accurately so the dimensions should be good and the wheel round this is screwed one end at the centre punch mark, using a scriber or anything metal and sharp the circle is marked I find with my eyes the line is hard to see so I go over the line with a permanent marker.
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Cutting out the wheel is a long and arduous business but the slower you go the better the final job usually is.
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The tyres for this robot are Motocross motorbike front wheel tyres like Saint first they have to be cut in half radially this means you have half the tyre on each wheel. for the new robot the wheels are so large there are no tyres big enough so the tyres are segmented 12 segments for each wheel. a simple clamp helps, don't forget the bead is steel.
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the tyre is then bolted to the rim the holes for the bolts are measured out first and the holes drilled. The bolts used are stainless steel hex socket domed head (flanged) 8mm machine screws and Nyloc (flanged) nuts to fit.
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more to come

Craig

[Mega Masher]

But........they're not green!

[craig_colliass]

I have gone over to 500 grade HDPE it is less expensive than UHMWPE or RG2000 I always wanted white but the RG2000 only comes in black and green!
Hope that clears that one up.
I am thinking of calling this robot after a short lived featherweight, Gabriel what do people think?

[Mega Masher]

Ok, it was just a joke lol
Is this the fw or hw?
Looks great btw

[craig_colliass]

Each wheel weighs over 10Kg Defiantly a heavy. I hope to take it to Colchester for a few test runs.

[daveimi]

This is so cool please keep putting pictures up and call it Gabriel. I love reading your thread for all the cool ideas.

[craig_colliass]

Gabriel it is then!




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This is not a trick the clearance from the front of the robot to the ground is 14" or 350mm!

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I still have lots to do but I hope to get it going this weekend.

[Flag Captured]

Looks really cool! And huge too...

Is this going to replace the current Saint or run alongside? Because if it's the latter, I would definitely love to see them both fight each other at some point, maybe with Stinger in there too haha!

[daveimi]

Wow it's huge! That's awesome! I like the way you've built a bigger version chassis-wise of your feather weight. I was looking at them at Doncaster and all 3 of us rushing to the lexan when Saint was running. They're huge and absolutely frightening in the flesh. Are you having battery packs and everything as your counterweights

[Mega Masher]

I love the idea of the whole robot, almost impossible to beat, and the pit can't hold it!

[craig_colliass]

Just a quick run down on how the robots did at Colchester

But firstly a big thanks to John and all the Robot Wars team for 3 great shows. Looking forward to the next one.

Spiderbot this machine has proved to be quite reliable and didn't miss a beat or a step, the crowed loved it.

Kettlebot ran faultlessly and was a joy to drive.

Tron this robot suffers from a bad driver (me!) in the end I just drove it on the floor flipper because I like to see it fly! the last time it busted a drive motor so that was the end of that the new LiPo batteries are working wonderfully.

Cherub this robot was a complete disappointment for us, as it didn't work properly all weekend, we tried everything to get the lift motor to work but no luck. We have decided to replace the speed controller and radio for the lifter and start again. If you replace the handle and the head you know you fixed the broom!!

Gabriel we decided to get the new robot ready for this event, and carefully test it to see if it would be OK. the robot worked very well I had a drive between shows and I could almost drive it were I wanted it to go!! the handling on this machine is so much better than Saint ever was. also the more powerful motors made the drive so much more responsive it works like a heavyweight Seraph. exactly what I was hoping for.

There were a few problems the major one being the drive on one side was binding somewhere, at the time I thought it was the bearings binding I was concerned some dirt had got on to the bearing tracks on the gearbox. but it turned out to be the motor pinion was tight in one place this has been adjusted and is running much better. A few nuts shaking loose that will need to be looked at but the Wotty didn't break into a sweat and the batteries performed better than expected.

Modifications to the robot I hope to loose a bit of weight on the robot as I expect it to be a little over weight, and adjusting the drive ratio to increase the top speed a little.

all in all a mixed bag for the robots but I hope Gabriel may be one to watch in the future.

[craig_colliass]

A video of one of the fights with Gabriel at Colchester

[Max]

I love how its almost as big as major damage!
Looks quite lightweight though but I guess the middle section is just dense so very heavy.
It's just a shame that it doesn't seem to damage anything, I preferred it when saint had that massive hammer thing on it.

[ChrisKazoo]

It's huge!

[Garfie489]

Still think i won that fight