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Just thought Id tell you that this bot is called Big Daddy, because it is BIG Im talking 50cm high, 60cm long and 55cm width!!!
I do think It is perfectly safe as long as the arena can handle the weapon. Ill show you lot how really strong this beast is at rc wars (Im gonna fit a wedge onto it tonight)
2 points, first, see RC wars thread for my opinions on the above,
second, tantrum was mechanically limited by running on 1/4 voltage. If thats not good enough for some people, perhaps you can suggest a better way of limiting its power than limiting its maximum voltage? Just asking, as the comments seem to imply Tantrum was inspected and it was clear I was at 1/4 throttle... which was not the case.
oh, Ewan, dont get your hopes up, that doesnt look too secure. Its not the supports Im worried about, its the way its connected to the motor. But, you could always run without a weapon..
oops, forgot to address the roof issue, there isnt one.... an issue that is. end of.
I have now said this LOTS of times, but Ill show you how really strong the weapon is @ the event. Right now I am fixing BIG steel strips down the center of the bot for extra strength.
Oh, and will you at least let me do a spin test (not hitting anything) in the arena, Id love to show you lot the hum the blade makes at the full 2500-3000rpm!
Cheers, Ewan
ewan, alot of us are more experienced than you are. Lets see how strong it is when it hits Alphas stainless steel scoop. Any robot that has bolts sticking out, because theyre too long, shows its not had any time spent on it.
Ah, all those bolts have been turned in, that pic was taken only just after Id got it together. One bolt on each side is still sticking out, as this stops the bot resting on its side, or back...
Cheers, Ewan
P.S. If the spinner hits a solid enough object (like a 6mm stainless scoop) then Id expect the blade to just stop, The bade will fail, before the structure holding it does.
I reckon that motor shaft is gonna bend like hell. Really ewan, the minimum standard for all these super spinners is (for a vertical spinner) a decent axle (eg 15mm EN24T or the like), supported on both sides with some chunky bearings or bushings. Running discs direct from motor shafts is fine on antweights, but i think we really need something more secure for feathers. Put it this way, Id be happy to stamp hard on vortexs disc, because its built like a tank. I reckon yours would not hold up at all to a good stamp. What it really needs is not minor improvememtns here and there, but a completely different appraoch to your spinner design.
Wait and see... Oh, Ill try that stamping test :)
Cheers, Ewan
yet another change in conversation! wot have you got controlling the disc motor? i suggest you put nylon locking nuts on the bar (or at least threadlock).
The Bar is held on by two nuts, tightened to the tightest that the word tight could possibly mean...
Bashing the whole weapon assembly, (and the rest of the bot) with a hammer, can not cause any problems anywhere around the bot, and YES I can stand on the weapon motor (hard to balance:)) without any base distortion etc... I have just fixed the titanium wedges that I will use for the weapon at the event.
Cheers, Ewan
load isnt the problem with nuts coming loose, its the vibrations.