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TWCS Throttle- Z rotation problems


neetz

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Hi all.

Lately, i assume from my extensive helicopter flying, the Z axis on the throttle (the rocker pedals on the back of the unit) has a twitch to one side (right). Im afraid that i have "over used" mine.

 

I think it can be few things:

 

a) The potentiometer is becoming tired.

b) The Spring that should center it is getting old.

c) Both of above :(

 

I would like to replace the potentiometer in it. Does anybody know, what type of pot they use inside that?

 

I have changed USB ports for debugging.

As the 'twitch' is getting worse, i dont want to set (any higher) deadzone, its getting silly.

And i dont want to get pedals, ive used with those and get the job done even in the UH1.

 

Or if you have a old TWCS throttle laying about with OK perormance on the Z axis and spring, i could consider buying it for spare parts.

 

Thank you.

:joystick:

Im so happy that I found DCS, the free time i might have had - gone :suspect:

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I would like to replace the potentiometer in it. Does anybody know, what type of pot they use inside that?

 

Normally potentiometer is the culprit. Before replace try clean the old - inside, spray their case outside with contact cleaner is "placebo".

 

The model used is probable CTS series 251 - 251B12T104A2NB is used in twist of T.16000M.

 

https://br.mouser.com/datasheet/2/96/251-1147030.pdf

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yeah, well, today the slew axis died as well. will keep the old one for tinkering and trying to upgrade but just to keep me flying, i ordered a new one :/ :D

Thank you for the replys.

Im so happy that I found DCS, the free time i might have had - gone :suspect:

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  • 2 weeks later...

I got the same problem, but i use the rocker for zoom. Usually WD40 gets rid of it for a couple of days. You can try to clean it or get a better/more durable pot instead.

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Thrustmaster TWCS Afterburner Detent
https://forums.eagle.ru/showthread.php?t=223776
 
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  • 1 year later...

I have designed a contactless sensor replacement (magnetoresistive) for this pot type, which will solve spiking/ worn pot problems once and for all. Earlier I made a version based on an Allegro hall sensor, but that was more of a hassle than what it was worth.

 

Only thing is I designed the axle to fit the Cougar & TM16000 sticks which have different shafts. I dont know what shaft type and length the TWCS throttle has. Could somebody send me pictures and/or check shaft diameter and length? The shafts are either ~4 or 5mm in diameter and 12 or 15mm long.

 

TM-sensor-mini.jpg

 

 

 

 


Edited by rel4y

Cougar, CH and Saitek PnP hall sensor kits + shift registers: https://forums.eagle.ru/showthread.php?t=220916

 

Shapeways store for DIY flight simming equipment and repair: https://www.shapeways.com/shops/rel4y-diy-joystick-flight-simming

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I am joining to the club too. My TWCS is relatively new but the z-axis is only responsive to left side.

 

Since I have pedals and I don't need it as a rudder, I use this axis as two buttons by means of XPadder, left movement-button one and right movement-button two, but now I have had to disable the right button. 

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2 hours ago, rel4y said:

Only thing is I designed the axle to fit the Cougar & TM16000 sticks which have different shafts. I dont know what shaft type and length the TWCS throttle has. Could somebody send me pictures and/or check shaft diameter and length? The shafts are either ~4 or 5mm in diameter and 12 or 15mm long.

 


Would be this video helpful? Are you somehow able to get the measurements?


I do not want to disassemble my throttle apart from the base since it is still under warranty. I am waiting for a heads up from Thrustmaster if there is no warranty void sticker or such and if I can try to clean the potentiometer. 

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Wow, just saw the throttle axis pot is SMD mounted on the PCB, thats a dick move.. Sadly, from this video its impossible to tell what pot type is used in the rocker mechanism.

Cougar, CH and Saitek PnP hall sensor kits + shift registers: https://forums.eagle.ru/showthread.php?t=220916

 

Shapeways store for DIY flight simming equipment and repair: https://www.shapeways.com/shops/rel4y-diy-joystick-flight-simming

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  • 6 months later...
  • 2 months later...

Same here, after 2 months of flying mostly helicopters the z-axis (used for pedals and rudder) got a little crazy, it produced spikes (mostly on CCW rotations).
My currently working solution:
.) Dismantle the thing according to Arvey Jay's video: https://www.youtube.com/watch?v=gVzhEgHS4bA
.) Pull the potentiometer off the top to have it loose (didn't touch the cables)
.) Rotate the knob of the poti to full left and right a few times, thereby pulling and pushing it (but just very carefully)
.) Put back all stuff and re-assemble the stick
.) Spikes are not there anymore

Yeah babe. Let's see hot it goes ...

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  • 2 months later...
  • 2 weeks later...

Hm, after flying a few hours more, the initial problem with the spikes is back. So the poti is garbage. Pure garbage.
 

Visit https://www.viggen.training
...Viggen... what more can you ask for?

my computer:
AMD Ryzen 5600G | NVIDIA GTX 1080 Ti OC 11GB | 32 GB 3200 MHz DDR4 DUAL | SSD 980 256 GB SYS + SSD 2TB DCS | TM Warthog Stick + Throttle + TPR | Rift CV1

 

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  • 8 months later...
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