> Im not sure why people get so hysterical whenever someone tries something > different... > Not hysterical. Just confused with D's posts up to that point. From my reading, there didn't appear to be an understanding of vehicle turning dynamics, just vague discussion of "large" forward and reverse motor and a "little" turning motor.
> A few months ago someone suggested we move to brushless motors and said > he was going to try it, and several other people really put down his idea... > I don't recall that but the issue with brushless is accurate low speed reversing controllers at our price points. Most hobby grade brushless motors are not setup for accurate reversing and would require the addition of hall sensors and controllers that work with sensor feedback to do so. If someone could crack this nut so much the better. This is the reason that brushed motors are still the mainstay in hobby r/c rock crawling because they also need low speed accurate reversing which brushed systems do perfectly. > Now someone suggests a new type of transmission and its open season... > Up until your post, the word transmission was not part of the discussion. > I can definitely see concerns with a double differential drive. It looks > more complicated to design and build for one. > If wishing to use a single prime mover for tank propulsion, then a double-differential transmission is one option. Others are braked differential (most common in WW2), a hydraulic solution like in zero turning radius mowers, and others of course. But I'll state, when constrained to battery power as we are with this hobby, none of these options are as efficient or as economical as dual electric motors. > I like the idea of using a golf car motor but you may find it way to big > and heavy. > If your building a golf car sized tank, this would be a good option. In a 1:6 scale vehicle, it would be difficult to fit a standard golf car sized motor into it. > My suggestions are the same as all other robotics projects ; start by > seeing what other people did, then make a plan for a test bed or proof of > concept then prove the concept then make a detailed plan then build it. > Agreed. ST >> -- -- You are currently subscribed to the "R/C Tank Combat" group. To post a message, send email to [email protected] To unsubscribe, send email to [email protected] Visit the group at http://groups.google.com/group/rctankcombat --- You received this message because you are subscribed to the Google Groups "R/C Tank Combat" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
