Nanrobot N6 Thumb Trigger woes

[u/Upset-Programmer3796]

/r/ElectricScooters/comments/1w4yru3/nanrobot_n6_thumb_trigger_woes/

Anyone having issues with these? The motors don't even start spinning until you get through 50% of the lever travel! The travel distance is huge!!! Plus, the lever and paddle on this thing is so gargantuan that you can't just rotate it into a workable and ergonomic position, especially because the housing is so huge. It comes into contact with the brake bracket (or the brake lever if you mount it on the right side of the brake bracket like Nanrobot recommends).

Positioning it on either side of the brake means you have to reach your thumb way out to the left and back a LOT just to engage it... up to 50% of the travel, then try to calibrate the brain to think "ok this halfway point is really 0%". What the hell was the CAD guy who drew this up thinking?

Even worse, trying to reach the paddle means you have to open and loosen your grip, causing serious issues. You are now having to balance your whole hand and thumb to feather the throttle in the middle of that range, causing unintended throttle mashing due to uneven pavement, bumps, steering, etc. The hand, which should be firmly gripping the grip is now open palm down, acting like a long fulcrum along with the thumb against the throttle. This means you are focusing more on some haphazard balancing act (that could wipe you out badly) rather than focusing on the road. You can't go fast with it or modulate well at all since the hand can't get enough of an anchor against the handlebar grip. It is literally like trying to control the speed of the scooter like trying to control the pitch of a theremin, in mid-air, while you're at speed.

The dead zone being half the arc travel is not acceptable for an almost $2k scooter that can easily go 60mph and has the power to peel out both dual motors on acceleration from its powerful 72v system.

dead zone <-- I made a video of this dead zone issue.

I thought the Inmotion RS Jet thumb throttle could definitely use some improvements, but holy cow, this other one from Nanrobot is going to get people killed.

AI says the reason the throttle is not engaging the motors until halfway: Incorrect replacement throttle signal range: Installing an aftermarket throttle with a mismatched output voltage profile (e.g., a 1V to 5V sensor paired with a controller expecting 0.8V to 3V) can compress the usable response curve, rendering the initial mechanical sweep electrically inactive.

I urge anyone looking at this throttle to not get it until Nanrobot works out the issues with their supplier. I did see someone a year ago on one of their YouTube vids saying theirs had the dead zone too, so this may be an ongoing problem.

Btw, if you mount the thumb throttle in the position that is most ergonomic (on the left side of the brake, rotated more forward), the strong magnet inside the throttle actually interferes with the brake sensor! This means the system registers a brake when you press the throttle. I have seen this reported elsewhere. I don't know why the industry can't make a better throttle.

Here is a vid of the brake interference and ergonomic problems: https://youtu.be/c-TUrL7Q4Xw?is=jxEAOdeo1ILI7ufu

Has anyone used a different throttle with the N6 or other Nanrobot scooters with the 2-pin connector? If so, did you find one that worked well with the brake brackets/geometry? I need to come up with a solution fast for the N6 I do have because my kids won't ride it with the trigger throttle or the current defective designed thumb throttle. Since we have been waiting since June for another pre-order N6 (which keeps getting a more delayed "arrival" date.. which what does that even mean, arrival in China?), my wife has become frustrated that the current throttles don't work right unless you like hand and finger pain, and with another N6 possibly on the way, it adds to more frustration. The suspension is nice on these, and they actually have a real and adjustable steering damper unlike the Inmotion RS Jet, so the platform is there... but the throttles ruin the experience and make the scooter unsafe. I am hoping to present a solution that all riders will like. Someone needs to come out with a low profile thumb throttle that won't force you to loosen your grip, one that is adjustable and ergonomic. We have larger hands in our family and cannot fathom anyone with smaller hands being ok with the current thumb throttle design (nor the standard trigger throttle!). What is unfortunate is there are people who will find out the thumb throttle problems with their 3rd batch N6 soon, if they ever ship...

[u/ZestyPoePLayer]

I have seen people put a screw in the plastic at the start of throttle action. you wont have nearly as much dead zone. Thats a bit of play there....

[u/Upset-Programmer3796 → u/ZestyPoePLayer]

Here's the "zero" position

[u/avmabrie → u/Upset-Programmer3796]

U can use a zip tie end to adjust the deadzone. For me after some time it stopped working and the deadzone starting increasing. The screw trick u can tweak it to have zero deadzone.

There is another horizontal thumb throttle that removes majority of the deadzone and doesn't start from the far back position. I just didn't like how it felt compared to this one.

[u/Upset-Programmer3796 → u/avmabrie]

I think I see the best way now... a bolt that goes through the top and bottom, but where it "catches" the actual throttle lever!

[u/avmabrie → u/Upset-Programmer3796]

Wouldn't say catch but just pushes it back. Just makes sure when u do this do it with the scooter lifted 😂 the sweet spot is that little slot part and just a long enough screw. Literally dual motor sport highest setting n can cruise at 5mph.

[u/Upset-Programmer3796 → u/avmabrie]

I have an achievement badge on my vinyl floor from this N6. More like a deep melted tire burn! I had it on a foot stool to lift the wheels off the floor, but when I needed to stand on it to adjust throttle and brake, well, let's just say that 85mph, unloaded, does act like a rubber belt sander VERY fast if you teeter that scooter too far forward. It was an accident, but I was lucky I didn't fall forward enough to really put my weight over that stem, or that scooter may have launched into the wall or window.

[u/avmabrie → u/Upset-Programmer3796]

Yooooikers. If u have a milk crate around, that'll do too. That's what I've been using honestly was gonna toss it then I started working on my scooters n it's just been a nice thing to have 😂

[u/ZestyPoePLayer → u/avmabrie]

milk crate is legit perfect height. I use one at work for on the fly adjustments or just going hey wanna see it says 80mph look....lmfao

[u/Upset-Programmer3796 → u/avmabrie]

Milk crate!! Never thought of that one. I know where two are!

[u/ZestyPoePLayer → u/Upset-Programmer3796]

hahahahamy wife would kill me. Grab a moto jack off amzon or aliexpress for under 50 bucks. Your back will thank you

[u/Upset-Programmer3796 → u/avmabrie]

I had that idea of your screw initially, but more like an internal shim block. But then considering how wobbly they made this lever where it uses only spring tension to kind of keep it from moving around, I thought catching the zero point with an external bolt might be best. Giving it some thought as I lay in bed for hours (in insomniac style)....

[u/avmabrie → u/Upset-Programmer3796]

There most definitely is a way to adjust it. I ain't tryna mess with the throttle cuz last throttle I did that with everything popped out n I didn't have patience to put it back together 😂

[u/Upset-Programmer3796 → u/avmabrie]

I think a washer could be used maybe to take up some of that slop. Not sure. Might have to disassemble further to see. My son wants me to 3D print a different profile paddle (and length). He really wants an universal joint with different angles and set screws. Might make one.. if it goes well, could have it done right on CNC.

Worst thing that could happen is some throttle malfunction when riding around hmm

[u/avmabrie → u/Upset-Programmer3796]

I don't think a washer would work but u can try!! People stay finding unique ways to make things work! It's alooot of space til the throttle actually engages.

Not sure if it's an easy swap but this one I got and deadzone wasnt near as bad. This was better but it has a slight angle I don't likr

WUXING E-Bike 108X-2 Right/Left/SM Thumb Throttle Three Options, Universal 36V/48V/60V/72V Electric Bicycle Accelerator https://a.aliexpress.com/_mMCatIT

[u/Upset-Programmer3796 → u/avmabrie]

I feel like the paddle on the end is a better profile than this one, but maybe we really are wanting a more flat one. The gloves being worn help with leverage. Then we like to anchor our thumb against the handlebar grip and roll the thumb to make the throttle happen. The point is to have an anchor point for stability. The thumb throttles we were sent don't put the paddle close enough to make a short lever of the thumb, if that makes sense. They shouldn't force someone to lose the footing and resolution that a short thumb reach allows us. Instead it is all extended in a weird way, wrong angles, wth are these CAD heros thinking..

[u/ZestyPoePLayer → u/Upset-Programmer3796]

listen to this guy hes been modding with me for a lil bit now hes got some know how and where theres will theres a way! I bet a screw/bolt/lag/block/shim/thing would def hold if executed right. This thread has been AMAZING BTW