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Yeah, I believe it uses a geared down electric motor directly onto the back 'legs'. Biohazard used modified linear actuators for its weapon, if I remember correctly. It has been done, perhaps not with such amazing welds as ours, though. :rofl:Quote:
Originally Posted by Bodge Job
Thanks for the kind words, guys!
Edit: oooh, 400 posts.
Ah Ye, forgot about them? I ment with this kind of system in FW's
Nothing majorly interesting from tonight; just a cardboard mockup of the armour to be. Only brainstorming, the shape is likely to change.
http://i1088.photobucket.com/albums/...entless/18.jpg
I'd like to say the tiles have been damaged by the robot, but my dad happened to fill in the grout gaps today. I came >this< close to pretending, then I realised how sad that would be. :lol:
We spent a surprisingly long time beginning with the armour yesterday. We had compound angles to deal with that we hadn't expected, so we didn't get masses done (or we did, depending on how you look at it...)
Two chunks of chopping board that vary in thickness from about 22mm to 24mm thick. Should keep most of the nasty stuff at bay, as long as I can consistently point the front of our robot at the spinny things. :roll:
Between these two pieces alone we've added almost a kilo in weight!
A few pics: http://s1088.photobucket.com/albums/i32 ... elentless/
It's really going to change the way the whole thing looks.
Wow, bulky armour 0_0. Looks great, I'm especially liking the 4 bar ratio which ought to work much better than a simple pivot in this arrangement.
Only thing I'd change is the drill packs, could have something with much more performance for less weight & volume for only £30-35 these days!
It crossed my mind the other day that our robots are actually quite similar. Same 4 wheel drive system and wheel lay out, same battery and ESC locations. Same construction method right down top the central supports. The only difference is the width of the central section and the weapon of choice. Its interesting what variation you can get from similar setups :)
Thank you! We're quite pleased with the ratio. It is fast enough to be useful, whilst still able to lift 10kg+ at the tip without much trouble.Quote:
Originally Posted by ewan
As for the batteries, I am aware of far superior packs being available for not much. I would love to use, I don't know, two 8.4v or perhaps 9.6v 3000-4000mah nimh packs in series, but these should do us fine. I think the truth is, my dad starts to lose interest if we use all shop-bought parts; it's the inventing that he enjoys, and so we have stuck with these batteries. It is true that they get extremely hot, which is really rather worrying, but they don't seem to restrict the performance of the thing. At stall/startup we're guessing some 40a minimum is what they have to supply, and they seem to do it, but as I say, they get very hot. I read somewhere that nicd cells simply don't supply what they can't; they don't discharge harder than they can?
Definitely upgrading for robot #2!
It had occurred to me as well, we have very similar bulkhead designs. You're using gimsons, right? It'll be interesting to see how much better they are than good old 12v drills, we may have to have a game of sumo!Quote:
Originally Posted by Eventorizon
Bit more progress on the armour/wheel protection. We got what we're calling chocks in, and we cut the basic strips for the sides. Pics, as ever, here - http://s1088.photobucket.com/albums/i32 ... elentless/ :)
It's really changing in look. It's gone from all squares to all triangles with just a few bits of plastic. And, it's huge! It'll be almost a perfect 50cm x 50cm square. I'm still getting to grips with it myself. Oh well, some robots are big, some are small. Turns out this one is a bit beyond big. :wink:
Our main tactic will be to sit on enemy robots until they surrender. :lol:
How are you getting on with cutting all the odd angles into the LDPE?
I'm having serious problems getting all the panels to sit flush on my wooden bot, but I can sort that out with a belt sander!
thats baddass man :P