100rpm with for instance 40mm wheels;
4 x 3.14= 12.56cm
12.56 x 100 (rpm) = 1256cm a minute or 12.5m a minute
12.5 x 60 = 750m per hour
The arena isn't big but it feels a little counterproductive to need roughly 20 seconds to get from one side to another.
Thanks for the info! What are the benefits/drawbacks of having brushless drive as opposed to brushed?
Brushless drive gives more power in a lighter, smaller package, if you use outrunners though you need to have them not rubbing up against anything. This also requires you to reprogram the ESC's to give forward/reverse control and enable braking, which is far from difficult to do it's just another step to setting up drive.
Alright, thanks!
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First parts are coming in. First tragedy already occurred - I was denied my drawing. Much sulking was to be had.
Leaving for a holiday in just over 2 weeks, so currently still very much in the process of getting the parts together and seeing how the lay-out is going to be.
One thing I have already decided on is weaponry and overall theme. I like control type of bots a lot as they rely heavily on driving skill, so it's going to be a lifter. I want to get a theme going too, as comedy bots stand out and bring something extra to a fight, namely for the spectator. The plan is then to build it in white and have an ambulance theme, naming the robot "This Is Not A Drill" (which it isn't, because it's a lif- oh well you get it).
First priority for me though is to get a 2WD platform together and work my way from there. Probably will order the motors some time next week, and then it's time for some sweet unadulterated pretendobot action.
Last edited by Zenith; 15th July 2016 at 12:21.
After a very exciting summer holiday it's time to get back at it. Days before departure to sunny Asia I took delivery of my drive motors; 4 12V 1000rpm DC motors, akin to the Silver Sparks used in the Viper kit.
This led to the first mock-up.
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Indeed - it's not as much a mock-up as it is two drive motors on a used cutting board. Contrary to what my better half believes this cutting board's destiny will not lie in dicing and slicing meat (vegetables is a different board, because HEALTH AND SAFETY PEOPLE), it will be used to put driving platforms together. This one cutting board should serve about 3 driving platforms, providing I can keep stuff from falling off and how hungry each platform is. As it is, I'm sadly not Jesus - then I would've been able to do this entire build with a gallon of water and a fish.
Batteries and plastic are on the way - white HDPE. Maybe I'll just make a new cutting board from that and hope that my gf won't notice.
To be continued.
Last edited by Zenith; 2nd September 2016 at 16:45.
As it turns out these installments turn out be a monthly ordeal. See it as a testament to my Carribean roots.
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I received the final order from Technobots recently, which contained some more hubs and wheels. I went with the Fingertech variety, simply because I'm already familiar with them and it's always useful to have spares that can be made from my gf's beach footwear. I just hope she won't notice her Minions flipflops have gone missing at some point (I think I'll just blame the neighbour's cat, out of spite for it taking a crap in our garden the other day).
Once again though, I was disappointed in the sheer lack of drawing in my order. I'd requested a drawing (or photo - I like to lower the bar now and then) of the best UK fighting robot along with my order, but sadly there wasn't even a print out of M2 in there. Much sulking was to be had.
IMG_20160928_175221.jpg
With all parts finally in possession though, I could finally start to get stuff lined up properly. First, I got my new transmitter sorted out by using the Viper to bind the receiver. I'm leaving the Viper in one piece throughout this process, mainly because I want to really build my first bot from scratch and I feel that using the Viper for that is like using cheat codes. And cheat codes are things snotty teenagers use in Call of Duty whilst shouting all kinds of sexual expletives about either you, your mom or both.
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Anyway, I digress. Along with the hubs and wheels I'd also got me some excessively bulky mounts for the motors, but soon enough these proved rather useless on something that requires armour. Yeah, good job on making a good bench testing setup there. Extra XP for me. If you have some tips for a simple and slightly less corpulently challenged motor mount solution, please do comment.
Did I actually get it going though? Ofcourse not, that's something for next month. Gotta get myself a soldering iron, along with some other tools. And buying tools is fun - it's like the men's equivalent of buying shoes.
Maybe I should ask my gf to come along and carry my bags.
Last edited by Zenith; 14th October 2016 at 15:10.
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