Uhh… Are you picturing an entirely separate battery/ESC/remote for the brake servo? Cus if not, then you are adding just another component which will be susceptible to all the same failures as your main drive system.
It’s like adding two remote receivers for “redundancy”
Fair point, was mainly thinking about heat, dumping to much charge in over a long descent and the like. I suppose having them as completly different systems could work but leads towards adding a point of failure rather than an effective redundancy system
You certainly wouldnt want any unexpected servo jiggling if there was a disconnect…
Was not even thinking about whole system failure.
Can you think of any advantages? Or impact on riding feel. The idea of being able to have front brakes that dont require heavy motors, and or a larger battery to handle the needs of dumping large spikes of current ect
I suppose running with the cable is one way to avoid some of the hiccups that may come with funtime servo jiggle and avoid system failure locking out the “saftey” aspect.
Have you ever riden a bike with front and back brakes? usually you only ever apply the front brake after or at the same time as the back break because otherwise you loose effective steering and get a subpar break at best. (at least from what I remember. It has been a while since I’ve had and used a bike) I’d imagine the same issue would occur if you added a front brake to an esk8
It’s my own design, and it does lock you partially. You have 2 “control knobs” to turn when using a legstick. You can lean your whole body (braces you against acceleration/braking), and you can wiggle your leg around (higher fidelity). You can set it up so that the motion feels natural, but it’s easier to pull off with electric brakes as opposed to mechanical.
Yes, the upper shaft falls out and the tether kills my throttle sensor in case of streetface.
Yes, the range and sensitivity of motor brakes can be tuned to be whatever you want. Also important is the linearity, where you flow from throttle to brakes across a wide angle range. Mechanical brakes are more jarring in my experience due to the more sudden onset, where you get nothing for most of the travel and then all the braking force happens in 5 degrees.
I’m not sure whether hand actuation would make it easier or more difficult to brace against braking forces. I’ve never ridden an esk8 with a remote so my perspective is limited.
I’ve been living with my model for a year now, and I know I need to make some small edits for long term reliability. I’ll publish the plans when I’m done.
That makes sense. Was partially thinking that hand control may give that brake “feel” like you would have whilst riding a bike.
That would be awesome, there is no way im up to building anything close to the complexity of what youre doing but definitely curious on your thoughts of having a separate brake system for non drive wheels.
How does what you are currently doing “feel” and is this on a eskate or the bikeboard currently?
The mechanical complexity is unfortunately necessary, all the joints are there to give you 6 degrees of freedom to move your body around (no hard stops anywhere). It would work like crap without all that articulation. If you want mechanical brakes only, the simple option is to use a Dirt Surfer style bump lever at the rear:
I definitely get the desire for front brakes, by 2x 6355 board sometimes feels like it doesn’t have enough punch for emergency stops at high speed. I’d want to solve the smooth engagement problem first, like I never use the mech brake on my bikeboard just because the hard engagement is awkward. It should be possible just by putting a stiff inline spring somewhere.
Leg throttle control feels just as automatic as IMU balance control, but you keep the traction feeling in your feet cuz the board isn’t tilting. Resolution is super high and ramp speed can be kept very low. The downside is that you get a coupling between some motions (either leaning into a turn or bending your knees) and throttle. You can compensate manually but it takes a while for your brain to learn to do it automatically.
Thanks for the explanation totally see the need for the complexity (really cool way of making it a complete hands free ride)are your comments purely on the bikeboard setup specifically?
And was the setup mech disc, rim, v brake? Ect.
Given your experiences, do you think there is any possible benefit to mech fronts, cable actuated? Given the comments from yourself and others realistically it seems a hand actuated cable would be best to initially tinker with if to do it at all and not have the issues of weight transfer learning issues, reduced complexity for points of failure as well as an easier time with modularity of break strength input (thinking rim style break akin to bicycle for feedback)
Is it a quest for no appreciable benefit in your honest opinion? (weight handling saftey)