#1
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Wiper to Pot Transmitter mod
Has anyone done a mod to their Tx to switch the steering control to a potentiometer intead of the wiper system? seems as though it would be more reliable. i dont care if it will only by RH drive afterwards. i could not find anything in the searches.
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#2
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I have yet to see such a thing done to the stock Xmods controller. If you could pull it off, that would be pretty sweet.
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#4
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Actually, I'm quite curious as to how you'd go about this. I don't see really any way to do this without a totally new PCB board.. The steering and throttle inputs are both wiper; if you were to terminate one set of wippers, it seems as though the other set would also be terminated.
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The Collection: Mitsubishi Pajero | AE RC18MT TLMicroCrawler | Xmod ShowRoom | 'Yota XTruck "The fun begins when the pavement ends." Last edited by Donziikid; 04-28-2008 at 05:30 PM.. |
#5
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Donziikid - well, im looking at doing the steering first. to do it, i would remove the wiper system completely and mount a pot on the back side of the TX so that the steering wheel drives the pot directly. like i said, it was a cursury look and i havent cracked it open or put a DMM to the wiper yet. man, these lunch time projects keep adding up!
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#6
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just picked up an extra transmitter (free! )to tear apart and begin the steering (and possibly throttle) mods. working at RS corporate does have some perks i guess.
dropped in the AWD kit (now $0.97 for the kit) and full pedal launches are straight as an arrow. now that we stopped carrying the bearing kits, who has the best deals on them now? |
#8
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you work at rs corporate? do you know anything about a new like of xmods?
your project seems pretty neat. It should be good when it's done
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#9
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xmodkidd33 - thanx, ill give them a looky-loo
jameslew - yep, i work at rs corporate. i am not sure if i can release that information, but from saying that you can guess the answer to your question. |
#10
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dude that didnt make sence
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#12
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If you do work for RS, congrats and welcome to the Xmods scene that we all love. Now try and keep it alive! Congrats on the extra TX. Can't wait to see what you can accomplish, because I'm still quite baffled on how you'll be able to get this competed from a stock Xmods controller.
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The Collection: Mitsubishi Pajero | AE RC18MT TLMicroCrawler | Xmod ShowRoom | 'Yota XTruck "The fun begins when the pavement ends." |
#13
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Extremely interested! Please snap some pics along the way, because I've been searching for ways to make this crappy tx better!
It seems like you know what you know what your doing. Later, RedSXmodder |
#14
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dzk - no prank here and thank you for the welcome.
rsxm - will do. i too find the tx rather lacking, but it may also be a function of how the Rx board needs the signal. we'll see and here's hoping. |
#16
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Nobody has a schematic that I know of.
This maybe one of the better mods to the controller, instantly getting rid of the biggest complaint of how many "steps" there are in the steering. You think messing with the ribbon cable that links the steering/throttle board to the rest of the Tx board will be the key? Looking at the controller I have open right now, seems that'd be the way to start. Welcome from another Texan too,
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#17
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Ti25 - yes, but exactly how is the key. That 8 wire ribbon cable only connects the wipers from the throttle and steering wipers (ok, duh). If it were to be set up like a NORMAL pot using system, there would be only 6 wires. So why are there 8? I think it has to do with the throttle trim (using only 2 arcs versus all 4). Also, at least one wire is shared between the throttle and steering, but not the 'base' pads as you would expect.
Starting with the end wire just above the lable "CN1" it is: 1 - Steering "base" pad 2 - Throttle "base" pad 3 - Steering Full right turn rotation (in RH mode) 4 - Throttle, but not sure what its function is 5 - Throttle, but not sure what its function is 6 - Shared between Steering and Throttle 7 - Steering, but not sure what its function is 8 - Steering, full left turn rotation (in RH mode) I'll keep pluggin away though. I don’t like to let pieces of plastic beat me. |
#18
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6 could be like a ground, or just where current goes for both steering and throttle when either isn't applied.
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You know what I'm gonna do? I'm gonna get myself a 1967 Cadillac Eldorado convertible, hot pink, with whale
skin hubcaps and all leather cow interior and big brown baby seal eyes for headlights. Yeah! And I'm gonna drive around in that baby at 115 miles an hour, getting 1 mile per gallon. I may be king of the idiots, but my kingdom is vast and my subjects are everywhere |
#19
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More pondering… I don’t think the main IC brain is reading an analog signal like you would get from a pot, but rather reading which combinations of the 6 output wires (2 wires being the bases) are being used and in what sequence (direction of movement). In short, the steps are fixed and hardcoded into the code of the main IC. So to make the conversion to potentiometers would take a major overhaul of everything before the actual transmitting modulation board. This is not to say it couldn’t be done. One could do it with a progammable PIC, but would have to be someone with more time than me to do it. I apologize to all who had hopes that little ol' me could solve this HUGE issue. I did what I could.
Someone please tell me im wrong! |
#20
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