From my perspective
- smaller battery
- lots on armour to make it slower
- false teeth
otherwise it looks too damn good
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From my perspective
- smaller battery
- lots on armour to make it slower
- false teeth
otherwise it looks too damn good
Looked awesome again at our open day! what on earth will stop it in battle. Certainly wouldnt want to draw predator with it lol. Best get my thinking cap on!
It's always concerning when last years WINNER makes improvements!
usually when a good machine gets improvements it means the new bits will break down :P
I'm gonna guess TS2 :PQuote:
Originally Posted by james...venom
You can count me in on giving it a dam good try! I can't wait for a rematch :D It should be a different story with better armour and a working weaponQuote:
Originally Posted by RogueTwoRobots
I'm intrigue by the home made relay, what have you done there?
Is that bank of MOSFETs?
Thanks James, Predator looks pretty formidable with the disc ring.... I remember Ian talking about needing a connection with the machine and that making you much more inclined to step up a gear with some killer driving!
Fair play Alex, look forward to seeing the build diary of your new machine taking shape.
Its good to hear of lots of new machines being built and pushing the boundaries. NST will be entering effectively the same machine so it could be outclassed next year. I've had a new machine on the drawing board since last xmas which I had originally planned to build for competing with next year but after NST won, I decided to give it a chance to fight for the title again 8)
Yes PJ, it is.
What's the PCB you've made up? Surely you'd just want them On or Off and you could do that via an RC switch.
The RC switch contacts get stuck on due to it arcing shut. I'm guessing this is a more resilient method of doing it.
This new unit does still use an RC switch for the low current side (which I have found to be very reliable).
The board has an opto-issolator, its just building a bit of failure protection into the device.
Hi Sam
Just out of interest, no reason in particular but how high is NST's bar from the floor??? :)
Just out of interest, no reason in particular :shock:
Don't believe him Sam :mrgreen:
my guess is the same height you don't want it to be :wink:
This is a random question but how heavy is the blade? And what kind of rpm are you hoping for with it?
and whats the ground clearance at the back? and where is the link located? :P
Please just post the full blue prints, then in the style of the rebel alliance we will find your weak spot. Darth NST :lol:
Should one of us build an X-Wing featherweight for navigating the channel to the exhaust port then? 8)
If you strike me down NST, I shall become more powerful than you can ever imagine
*Sam spins up NST's disc*
Unlimited POWAH!
Err..apologies for the thread hijack Sam :lol:
No worries Jamie, I liked the posts :)
Progress has been slow, but alot closer now to completing the Dewalt motor upgrade V2.
The brushes weren't supported to well in the original version causing their edges to chip slightly when the robot took impacts. Alot more effort this time to design something which secure the brushes properly. Its been a lot more challenging than I first expected. Was toying with using the stock brush holders for ages then decided to bite the bullet and machine my own in aluminium.
What will this do to the power of the bar? You were running the Dewalt last year so is this simply to make it even more reliable and eeek that little bit more from the motor without actually changing it?
That exactly it. Just refining the current setup. In theory it should be more reliable and preserve 'new' motor performance for longer.
I have taken the decision not to make the bar more powerful this year as it'll near enough guarantee that the machine will launch itself out of the arena during the champs.
If I wanted to up the power of the bar, this could easily be done by going 8 cell on the dewalt, or putting the brushless system back in and refining it.
Don't worry, the new machine, 'Shard' will be more powerful :)
Will you reveal any details about it? Horizontal, Vertical, Brushless? Its not hard to image something more dangerous than NST but something that will stay in the arena...?
motor mods look really nice sam! I cant see a machine that would really beat NST so i think you have a good chance at defending the title. Good luck... except if you have to fight Predator lol
Thanks James, keep meaning to post on your build of Predator, that's looking awesome.
I think the main thing that NST has going for it is proven reliability (now I've said that it'll fail!), but I think there are a fair few robots out there which could beat it. Anyway very much looking forward to the champs now to see what it can do this year!
Alex, I'm keeping Shard top secret at least for the time being, I've had the design for it for well over a year but still haven't started the build yet. With any luck I'll get started after the champs and finish it in a years time.
sam, how did you drive the dewalt motor (any fet part numbers?). I'm also going to use 2 of these motors so I would be grateful if you could advise me on how to drive such a powerful motor (the only thing I have found that may work is an industrial mosfet module intended for use on forklifts). thanks
Dragging up an old thread here... Does anyone know the name of the plastic Sam used on the back of his Dewalt? I have gone through this thread and I can't find a name. Apparently something NASA grade if I recall.
That could be it, thanks Tim :)