Would it be possible to build a full bodyspinner from a car wheel? because those things are pretty darn rugid and already ballanced. And also what speed controller would i use for the Speed 900 motors?
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Would it be possible to build a full bodyspinner from a car wheel? because those things are pretty darn rugid and already ballanced. And also what speed controller would i use for the Speed 900 motors?
I believe a few people have done that before...Daisy Cutter and Corkscrew both used truck wheel hubs (as did Sir Chromalot but the less said about that the better :P) and in featherweights Jonno had Stripper at the UK champs either last year or the year before, that used a motorbike wheel and worked quite well as I recall (until the shell came off! :P) so a car wheel, if you could get it to fit in the allotted weight and spin it up fast, would probably make an excellent FBS shell with teeth on.
Whether you should build a full body spinner for your first or even second robot is another matter entirely though (sorry to be a bit of a wet blanket there)
yes if you could get it within the weight and I wouldn't bother with a speed controller. Use a solid state relay with a battleswitch
Meet Hurricane, from Australia:
http://www.robowars.org/forum/viewtopic ... &start=150
There's quite a few pictures of the build and its a pretty decent thread if you take it from the beginning. I believe that robot was becoming rather good with some fine tuning until he had a little speed-controller-taking-up-smoking problem. Don't know what stage it's at now.
Mhmm thanks jamie, and everyone else of course much love there ;D erm, I can tell thats going to be a slightly ambishous build there but... not using any bad language Stuff it! I have a year to build it and alot of time on my hands. I also have acsess to a factory full of cnc machinary and other lovely gadgets ;o but would 2 or 3 speed 900's be sufficent? and also I still havnt decided to build a FBS or a Hazard type bot.
I think the FBS would be a much cooler concept But i don't Know? I'll build both at one point ;D!
If you reckon you can do it, then I'd go for the FBS design. There have been plenty of horizontal bar feathers over the years but not as many full-body spinners. Plus, I think they look cooler 8)
As for Speed 900s, two should be fine. Boner runs two of them on the drum (which weighs 4.2kg) and with a lipo they achieve pretty much instantaneous spin-up on a ratio of 2.4:1. A car wheel hub will weigh a couple of kilos more than that at least but two motors should still get that thing turning within a couple of seconds, especially if you go for a ratio nearer 3:1
Daisy cutter used a tractor tyreQuote:
Originally Posted by joeychevron
Theo
P.S sorry for being picky