Questions/builds thread.

Well for us there is certainly a big difference. The video I have uploaded at 12v was pretty much full throttle, I haven't been able to go quite full throttle yet with the 18v in my house due to lack of space, and it's already significantly faster.

My feather runs 4 of those motors on 19.2v now and I saw a big difference compared to other bots running the same setup on 12v. It had a very decent amount of power. Increases the rpm from about 550 to 850 after the gearbox so not sure how you didn't notice an increase in speed Harry :?

When Cicatrix works in the 4WD configuration (which isn't often), for a drill powered bot I thought it had a pretty decent amount of push.

I have just realised how different my plans in the initial few posts in this thread (almost embarrassing, oh well!) are to what we have ended up making. Most simple box possible? Happily we haven't quite lived up to that!

My dad came home today with 2 meters of 2cm x 2cm steel box section for our lifter thingy, and a bunch of M10 nuts and bolts. I will keep info coming when we think of it, we're still very much working out what we want to do. :)

Video footage soon, hopefully.

Finally got a video!

http://www.youtube.com/watch?v=X8l9ejRogTc&feature=channel_video_title

Not a very good example, to be honest. The uneven surface doesn't do the machine justice (in places it has only 5mm of clearance) so we reckon this isn't top speed. Still, pretty good! :D

And some stills of various things added to the photobucket: http://s1088.photobucket.com/albums/i32 ... elentless/

Enjoy! :)

Looks very good. Fast enough to not be dull :)

For your first build I am very impressed actually :)

Couple of things I wanted to ask:
a: How come you used wire rather than battery tabs for your packs
b: Whats with all the switches on the back of the robot

Thanks!

a: Ease, really. It hadn't occurred to us that it may be slightly odd to use wire. We just, had lots, had it there, knew it could take the strain, so... yeah!
b: They are the drive (big switch, green LED), weapon (same but red LED), fans (small switch on the other side, yellow LED) and receiver (same side, small switch, green LED). Then there's the charge socket and heat sensor, and the link.

:)

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a: How come you used wire rather than battery tabs for your packs

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Quote:

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a: Ease, really. It hadn't occurred to us that it may be slightly odd to use wire. We just, had lots, had it there, knew it could take the strain, so... yeah!

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I think a few roboteers have found from experience that bits of wire are actually better than tabs. There's more flex in the wire, which means that a bit of twisting or impacts are less likely to fracture the joint, compared to if a pack was soldered using tabs.
Then there's cost. Okay, so tabs aren't that expensive in the grand scheme of things, but chances are most roboteers will have short (and otherwise useless) scraps of wire kicking about that can be used without having to pay out for some fancy bits of metal.

I'm also very impressed with what you've produced for a first build. Best of luck getting the weapon together for it :)

I too am Impressed with your first robot.

Thanks for the kind words. My dad's work has picked up again so we're able to do less, but tonight we got the back armour panels on. 10mm strips, it's remarkably solid. We got a new toy for cutting the stuff, it works a treat! Tomorrow we will get the top panels on and it will finally start to get sealed up and ready to take some bashing.

We also wedged some wood underneath the motors to support them a little better.

Pics of the armour additions as ever on the photobucket :) http://s1088.photobucket.com/albums/i32 ... elentless/