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Unnamed - Team Ellis - QLD
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Nick
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Joined: 16 Jun 2004
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Location: Sydney, NSW


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What do you think of the software? I never bothered to get it going for my E902 charger.
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Post Fri Nov 09, 2007 10:30 pm 
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assassin



Joined: 27 Jun 2004
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I guess the info could be useful to someone, but the charger itself provides all the necessary data.
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Post Fri Nov 09, 2007 10:53 pm 
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assassin



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Setback and/or failure here, I don't like learning things the hard way but sometimes its the only way. The drum assembly has some major flaws, it can't be treated without warping and it will be very unbalanced(a big prob @ high RPMs). I like to design/build different bots, but that can make it tough for the uneducated like me Smile .

I'm trying to find different alternatives, but most options so far are unrealistic. One day I will have a neat combat robot with a weapon.... @ the moment Cool I just don't know which direction to take.....
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Post Mon Nov 12, 2007 7:26 pm 
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Nick
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Can you not make the drum from something already hard and then weld or screw the teeth to the drum? Other people seem to have large diameter drums that work, so it must be possible...
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Post Mon Nov 12, 2007 7:44 pm 
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assassin



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Possible yes, but @ what cost. Something that is already hard and welding is a no no. I have no more than 5mm room for bolt heads or similar inside the drum, the thought of the internal and external curve of the drum to bolt things onto is undesirable. The option I do like is an aluminum drum with a milled slot for a nice square hard steel tooth. The problem with that is the aluminum stock, I have found one that may work but it needs to be bored out a bit Shocked 5mm. lol
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Post Mon Nov 12, 2007 7:59 pm 
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Nexus
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Joined: 17 Jun 2004
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just a thought, could you maybe make a cage of sorts to put inside the drum when treated to try to get it to keep its shape. then later dispose of the cage/brace.
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Post Mon Nov 12, 2007 8:06 pm 
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assassin



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Good thought thanks, apparently theres no stopping a piece when its being treated and that would still leave the balance issue as well. Smile

I might see if I can acquire a aluminum tube tomorrow, wish me luck Razz
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Post Mon Nov 12, 2007 9:00 pm 
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Fish_in_a_Barrel



Joined: 30 Sep 2006
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Location: Perth, Western Australia


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So can you run it, without it being heat treated? Maybe if you speak really nicely to a mechanic the can tell you where you would need to add more weight.
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Post Mon Nov 12, 2007 9:10 pm 
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assassin



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Its not ideal, how hard it is now. How do those guys balance things anyway? I might have to do some reading up...
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Post Mon Nov 12, 2007 9:14 pm 
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Glen
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i havent read the thread much but is the drum mild steel? if it is i would think heat treating it would be pretty worthless in the scheme of things. perhaps if it were chromoly.

the 5mm galvanised pipe in viscerals held up pretty farking good in the scheme of things. jolt, snack masheen and jeffs brushless spinner have layed into it a couple of times and its gouged out but by no means inoperaple. and thats a years worth of running.

now stop making excuses and finish it Cool
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Post Mon Nov 12, 2007 9:17 pm 
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assassin



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hhehe You know me well Glen, you know I need a kick up the bum sometimes. I'll see what I can do, I'll sleep on it. Laughing
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Post Mon Nov 12, 2007 9:28 pm 
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assassin



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OK, how about I build this thing with the drum thats made. It will be another prototype frame/shell like Eleanor.
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Post Wed Nov 14, 2007 6:38 pm 
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Valen
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Joined: 07 Jul 2004
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Heres the thing
you dont need a hard drum, you want hard teeth.
Most people bolt/weld high carbon steel/hardened steel on to a mild drum. A hard drum would be likely to shatter on a big impact. Hard facing rod seems to do ok if you do it in sections and quench it.
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Post Wed Nov 14, 2007 9:58 pm 
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assassin



Joined: 27 Jun 2004
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A few more firsts for me this weekend.



First time working with titanium, it's a battery mount plate and I'm happy with the way it turned out.

Also first time I've produced something with a lathe and I'm also very happy with the way it turned out, all thou it did take some time Very Happy.

What do you think of the hub Nick? I might do a bit more work on it and express post it to you to have a look @. If you think its OK, I'll make another 5.
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Post Sun Nov 18, 2007 6:17 pm 
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assassin



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Thats better Very Happy
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Post Sun Nov 18, 2007 7:28 pm 
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