#Chainsaw feet persecond plus
How much do you want to spend on the motor? If weight is important check they can do "as much power as you want" if we're talking chainsaws, and with weight about as low as it gets.įor the RC LiPo you want to divide the power figure in Kw by the C-rate you can ACTUALLY expect for 12 seconds (found by googling tests of batteries) plus some overhead, to determine you pack size. Any pack you build will be large enough due to discharge constraints that you will have enough energy for several runs. If you want more power, scale the energy consumption proportionately. You will probably spend 170-200 Wh energy with the battery outputting 50kw (reasonable approximation for 50-60 hp after losses) for 12 seconds.
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You probably want a battery not supercaps, because you would need to construct a very big supercap bank and it will end up being more complicated and expensive than high discharge Rc Lipo.
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You can easily do this the main issue will be not paying an arm and a leg for everything. If I were to go this route, what sort of connections and cables would I need?Īny info you can relay me would be a good start. What sort of battery/power pack/supercapacitor configuration would meet these power needs above and last 20 seconds or so? The less weight the better if i were to mount the power supply onto the saw, but I would also have the option of keeping the power supply separate from the motor/frame/bar unit and connecting it via cables. Max run time would be 12 seconds on hard wood. Are there any elecrtic motors out there that would have similar power and weight profiles?Ī typical "racing cut" is 3 cuts on 16-20" softwood. The motor and exhaust weigh about 30 lbs. Our 2 stroke motors crank out 50-60 horsepower, 50 lb of torque, and generate chain speed of 290 feet per second. I'd like some guidance on electric motors and battery/power pack/supercapacitor configurations that would meet my needs. Maintenance and reliability should be easier/better as well. There would be no warm-up or starting issues, there should be less vibration making for smoother operation, and the motor would reach top speed faster. Here is a video įor a while now I've thought that going electric could be a game changer for a few reasons.
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One of our events is the hot saw where we are using 330cc Rotax or Honda CR motors tuned for racing. Hi Everyone - I compete at the top level in Stihl Timbersports/Lumberjack Sports competitions.