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 Technic / 4399
    Re: Ideas for new sets? —James Powell
    (...) I've done a clutch, but it ate LOTS of power, and didn't work all that well. Brakes would be nice. A hand brake is probably doable in the current supercar (I haven't tried). Foot brakes would need something like flex system to activate. Even (...) (23 years ago, 29-Mar-01, to lugnet.technic)
   
        Re: Ideas for new sets? —David Arnon
     (...) How come it eats a lot of power? Once it's locked, it's locked... right? After one part of the clutch stops spinning in relation to the other part it's just a (bulky) part of the drive axle, or did you use a more complex implementation with a (...) (23 years ago, 30-Mar-01, to lugnet.technic)
    
         Re: Ideas for new sets? —James Powell
     (...) The problem was that it took 3-4 shafts (I forget, since I have since dismantled it) to build one that worked (at least 3). The more separate shafts you have, along with end thrusts, the more power drawn off the motor. It worked, but was not (...) (23 years ago, 30-Mar-01, to lugnet.technic)
   
        Re: Ideas for new sets? —Steve Lane
   (...) Why make life difficult for yourself putting brakes in the wheel assembly? It would probably work better if you put a brake on the transmission instead. You would then only need one and it could be put anywhere between the rear dif and the (...) (23 years ago, 30-Mar-01, to lugnet.technic)
   
        Re: Ideas for new sets? —Simon Bennett
     Steve said... (...) I would suggest you've answered your own question, we who care about representing 'real' engineering in brick form would rather have a solution which is as close as possible to the real thing (this is why I am attempting to make (...) (23 years ago, 30-Mar-01, to lugnet.technic)
   
        Re: Ideas for new sets? —James Powell
    Some vehicles prototypically have brakes on (...) not quite true. One of the cars I drive on occasion has its brake on the dif (it has no transmission per se, just a chain and dif aft of the engine...its a replica of a 1903 Locomobile) I'm just (...) (23 years ago, 30-Mar-01, to lugnet.technic)
   
        Re: Ideas for new sets? —Henry Chea
   (...) I've tried making such a system, and unless lego comes out with high-friction pads, there is no way to clamp down a 4x4 pulley hard enough to notice any braking action. The ratio between 4x4 pulley and big wheel is too great, plus us humans (...) (23 years ago, 30-Mar-01, to lugnet.technic)
   
        Re: Ideas for new sets? —Ross Crawford
   (...) How about putting a rubber band in the groove of the pulley, and have the calipers grip opposide sides (ie accross a diameter)? Not as technically correct, but a lot more stopping power. Or use rubber bands on the calipers themselves? ROSCO (23 years ago, 31-Mar-01, to lugnet.technic)
 

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