How to change steering shaft ?

[jojo33]

I used my 41mb of my attachment limit, sorry

here the link to photo tutorial for CHANGE STEERING SHAFT (Im not making money with my blog , there's only a google cookie inside)

update JUNE 02 2021

https://sites.google.com/view/mini-j-world/mini-tech-s-pro/parts-repairs?authuser=0#h.p_gknuQbAIYTng

Edited April 26, 2022 by jojo33

[xaveus]

Hi, the link is protected by password, is the information available without password please?

[kristof_explorer]

What exactly do you need help with? Are you trying to remove/replace just the steering bar, or the actual solid metal shaft within the metal housing, that the steering bar bolts onto?

I can help you if you need it, also there are guides of this sort on https://more4motion.com/pages/segway-minipro-repair-instructions

try this one in particular: https://more4motion.com/pages/steering-shaft-metal-casing-of-segway-minipro

Let me know if you have a problem, I have done this procedure before.

[xaveus]

Hi, I'm building a custom personal transporter, it began as a 'robot wars' project but just got bigger. I'm using NineBot S-Plus battery pack and motherboard, but the Ninebot Mini Pro turn-sensor (the whole unit, Hall-sensor, rotation-shaft and spring).

I unscrewed the small circuit-board from the S-Plus turn-shaft, it had one very small, square rod sticking out, which seems to locate into the end of the steer-shaft.  I've not been able to remove the same little circuit-board from the Mini-Pro because the screws are inaccessible (until I cut more of the magnesium casting away), my question is - will the small circuit board from the Mini-Pro, have the same small rod sticking out of it as the S-Plus's board?
 

The reason I'm not able to use the S-Plus's steering unit, is that I made a new support for the steerer shaft (which took ages), but it's made to the dimensions of the Mini-Pro's steel shaft,  which I mistakenly presumed would be same size taper-fit as the S-Plus's steel shaft, so I have to transplant the S-Plus small circuit-board onto the Mini-Plus steerer unit.

https://prnt.sc/ts6ifo   the S-plus square rod into steerer

https://prnt.sc/ts6iyz  the Mini-pro in the new steer housing (I need to swap the S-Plus circuit board onto this).

Thanks for reading.

[xaveus]

Thanks for the link to the steering-unit info.. in your experience does the steering need recalibrating if the four allen-bolts are undone to remove the top cover of the steerer unit?  i.e. if the steel shaft is removed and re-fitted will the steering need re-adjusting?

[kristof_explorer]

14 hours ago, xaveus said:

Hi, I'm building a custom personal transporter, it began as a 'robot wars' project but just got bigger. I'm using NineBot S-Plus battery pack and motherboard, but the Ninebot Mini Pro turn-sensor (the whole unit, Hall-sensor, rotation-shaft and spring).

I unscrewed the small circuit-board from the S-Plus turn-shaft, it had one very small, square rod sticking out, which seems to locate into the end of the steer-shaft.  I've not been able to remove the same little circuit-board from the Mini-Pro because the screws are inaccessible (until I cut more of the magnesium casting away), my question is - will the small circuit board from the Mini-Pro, have the same small rod sticking out of it as the S-Plus's board?
 

The reason I'm not able to use the S-Plus's steering unit, is that I made a new support for the steerer shaft (which took ages), but it's made to the dimensions of the Mini-Pro's steel shaft,  which I mistakenly presumed would be same size taper-fit as the S-Plus's steel shaft, so I have to transplant the S-Plus small circuit-board onto the Mini-Plus steerer unit.

https://prnt.sc/ts6ifo   the S-plus square rod into steerer

https://prnt.sc/ts6iyz  the Mini-pro in the new steer housing (I need to swap the S-Plus circuit board onto this).

Thanks for reading.

Cool project! That looks like a nice piece, your steering unit in the photos. Regarding the little circuit board, unfortunately I don't know; I've only swapped the housing w/ board between units before.

I would guess that the steering should be recalibrated if the housing is removed, although possibly it would just work, but I have the feeling you'd want to run the sensor calibration, I assume you mean through the app. Is there any reason you wouldn't want to?

Sorry I can't be more helpful, I think you probably know more than I do in this area!

[xaveus]

Thanks for the info on recalibration. I swapped the two circuit boards (had to remove the top cover on both, but didn't move the cylinder).  The holes on the PCB needed filing, the terminals on all the extra connectors had to be insulated and a plastic washer was required on one hole to stop the screw grounding two solders.  I haven't circuit tested it, but 'fingers crossed' the careful work will pay off, and it'll steer.

[FreeRide]

I have removed my steering housing before and taken it apart, but can't remember many details.  I remember though it was straight forward, I didn't have to cut anything.  The sensor did not need recalibrating at all.  It was in and out several time, and taken right apart to mess with the magnets.   if you are not using the same magnets then yes it may need recalibrating.  I can't remember if I posted pictures before in the hack thread when we were working on riding the Mini-Pro backwards.