Fanatec CSW/CSR Elite Modders Thread *UPDATE February 2014*

  • Thread starter eKretz
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BreakNDish, why don't you ask your questions in the post and that way anybody else in a similar situation can benefit from the Qs&As. I am fine with slightly OT stuff as long as it's still on the subject of modding.
 
Firstly, thanks for all the responses, gents, I'm trying to answer all questions;

What symptoms are you seeing with your motor?

Well, firstly it has an overall "grainy" feel, compared to complete smoothness before, almost if a badly worn cog was in the way, or a collapsed bearing. Second, it feels like sometimes the FF cuts in-out (it becomes stronger/weaker then back). This is a random thing, but happens often enough to completely mess with my ability to race accurately. I also suspect that (at least) one fan gave up inside - not sure which, but I suspect it's the exhaust one - it used to whine during racing, now it's not.

The wheel is 5 years old.
Maybe I'd be better off just buying a new one, eh? :)

I've asked them to quote the price for sending the replacement, still waiting for a response. They came to the conclusion that the motor is the problem based on a video I've sent them: http://ysumail.com/public/20130323_094535.avi
 
It sounds like you do have a damaged commutator. RacerXX's method of redoing the water break-in could possibly bring it back, you should at least try it. Replacing the motor should be cheap and easy, but Fanatec can be difficult to get parts from out of warranty sometimes for some reason. You might be able to change to a slightly different motor with the same size and characteristics if you do some looking.
 
BreakNDish, why don't you ask your questions in the post and that way anybody else in a similar situation can benefit from the Qs&As. I am fine with slightly OT stuff as long as it's still on the subject of modding.

Hi. Im interested in possibly upgrading the motor in my MS 360 WRW wheel. I have a way to modify the electronics to get more power to the motor worked out. But, being worried about burning it out I'd like to find out a little about motors and see if there's a better one out there I could use. I think the stock motor is a size down from the Mabuchi 550's used by Fanatec.

In addition Im looking at replacing the spur gear wit ha pulley setup. I already did some experimenting with old parts from a printer:

http://www.youtube.com/watch?v=vBmk6liikUk
 
It's not real clear in the vid what kind of belt you have. Is it a cogged (synchronous) belt or a poly-v belt? I don't think a poly-v belt would work unless you changed the way the wheel's position is reported. It appears that the motor has an encoder on the shaft that reports position. This means if the belt slips you have no way of keeping the wheel aligned, so I hope you're using a synchronous belt. Can you see any numbers on the motor can or flux ring? Like 540, 550, etc? If not can you measure the diameter and length of the motor can? If you have one of these sizes there are a lot of replacement motors available. There are a lot of options really if you're modifying. What are your plans to get more power to the motor?
 
I've made some progress on my water cooling, check these puppies out:

Prototype Water Block:

WaterBlockLid.jpg


WaterBlock1.jpg


Prototype Motor Sleeve:

MotorSleeve.jpg

Kretz, any more progress on those?:)
 
It's not real clear in the vid what kind of belt you have. Is it a cogged (synchronous) belt or a poly-v belt? I don't think a poly-v belt would work unless you changed the way the wheel's position is reported. It appears that the motor has an encoder on the shaft that reports position. This means if the belt slips you have no way of keeping the wheel aligned, so I hope you're using a synchronous belt. Can you see any numbers on the motor can or flux ring? Like 540, 550, etc? If not can you measure the diameter and length of the motor can? If you have one of these sizes there are a lot of replacement motors available. There are a lot of options really if you're modifying. What are your plans to get more power to the motor?

Its a cogged (timing) belt but at only 3mm wide and with such a small pitch it doesn't have enough bite to cope with the torque from the motor. Im planning to get 2mm pitch pulleys and a 9mm belt soon.

The wheel position is recorded by a potentiometer coupled to the main wheel shaft. I would like to change this arrangement though. With the gear slop there is a noticeable dead zone in the FFB around center. However inside that dead zone there is still steering input to the game so it feels really unnatural going down the straights. I also think having the in game steering input directly related to the FFB motors movement should be better. That's how Fanatec and Logitech do it (except in the CSW/CSR). This also why Im looking into pulleys to replace the cogs. I want to reduce the gear slop (which will also make the wheel much quieter) and improve the feel.

The motor has 'JOHNSON' stamped on the pinion end and along the sleeve the numbers - '1060494' and '311312 28'. The diameter is 35mm and it is 50mm long.

What is a Flux Ring?

On the motor power: The MS WRW wheel uses a Allegro Micro A3950 driver chip. In the datasheet it states the chip is capable of 2.8A if run at its max voltage of 36v. The MS wheel runs 24v. So thats one way to up the FFB strength. This can be taken further though as 2 x A3950 ic's can be paralleled for around 5 to 6A peak (with adequate heatsinking). There is an identical chip made by Texas Instruments called the DVR8800, DRV8801. TI have a nice application note about running these chips in parallel: http://www.ti.com/lit/an/slva320/slva320.pdf

And relavent info here also: http://ebldc.com/?p=373

For me this seemed the simplest way as the main board logic is designed to use these chips so it a simple case of tapping into the signals and beefing up the PSU, in essense. There are even convenient via's on the PCB I could solder on to tap into the logic signals. There's even a small PCB I found on the net thats designed for 2 of these chips and could be used to run them in paralell with a little bit of modding: http://www.avayanelectronics.com/Products/AE_DualDC3A/ae_dualdc3a.html

Cheers for allowing the hijack BTW 👍:)
 
I got started on them last week, but I've decided to switch to aluminum since the price of just raw material for copper is pretty crazy right now. I'm also working on some experimental hand-winds on the Bühlers too, I want to see if I can obviate the need for some of the cooling. If anybody is interested I guess I could snap a few shots of the hand-winding process. I'm waiting for my magnet wire to arrive at the moment, got some good high temp stuff in a few different gages.

BnD, the flux ring or torque ring is the steel ring wrapped around the motor can used to help contain the magnetism. It basically redirects the flux of the magnet inside the can, making the field stronger.

Sounds like you've researched the power issues, so we'll concentrate on the other stuff. I think you'd be better off going to 3mm pitch since it's pretty commonly used. I think your motor is a 540. You could get any number of replacement motors. I'll see if I can find specs on that motor.

Hmm I've been digging through the Johnson Motor website and can't find anything with those numbers. Can you pull the flux ring and check under it? It's a 24V motor right? And about how old is the wheel? The website may not have anything if its too old.
 
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Hmm I've been digging through the Johnson Motor website and can't find anything with those numbers. Can you pull the flux ring and check under it? It's a 24V motor right? And about how old is the wheel? The website may not have anything if its too old.

Nothing under the Flux Ring Im afraid. It has a 3mm spindle with a flat if that helps?

Oh, there's something odd with the wiring also. There are the usual red and black wires but also an additional green (gnd) wire soldered to the can of the motor. Not sure what that's about.

Im wondering if simply replacing it with a Mabuchi 550RS will make any difference..
 
Well, why don't you try running it as-is, but with more power. Johnson motors look to be pretty decent quality. What is you end goal? More torque? More wheel speed? The green wire sounds like a ground wire. When I saw it in the vid (hard to see the specifics, never got a really clear shot to see if there was an encoder) I thought it was an encoder signal wire! :lol:
 
Well, why don't you try running it as-is, but with more power. Johnson motors look to be pretty decent quality. What is you end goal? More torque? More wheel speed? The green wire sounds like a ground wire. When I saw it in the vid (hard to see the specifics, never got a really clear shot to see if there was an encoder) I thought it was an encoder signal wire!

Hehe!

Off the bat I could up supply the voltage to 30v and not need to change any components.

I'd like Stronger FFB in general, speed and torque ideally. I don't necessarily want a really heavy wheel but I want the FFB effects to be more pronounced. If the wheel snaps back to center faster that would be a bonus, especially for rally games.

Do you know much about rotary encoders? Im trying to find out how to replace the pot with a encoder but cant find the info I need.
 
Motor PNs, if present, tend to be on the flux sleeve on cheap "can" motors. Custom motors made for a device may not have them.

You can physically fit many different motors onto sim wheels using such drives. But you really want to have low cogging, low friction, and the ability to hit full stall without running into PSU or H-Bridge limits.

By cogging I mean the little pulses you can feel when you turn an uninstalled motor by hand. This is due to varying magnetic forces between the magnets and the steel armature plates. Fana-Buchis™ have basically no cogging of this kind.

By friction I mean the drag when you turn the shaft, which is related to the bearings and brushes. The bearing friction rises with side loading, and some shafts can bend since most can motors use 3 mm / ⅛ inch steel shafts. Side loading increases under FFB load.

If you measure the terminal resistance of your motor (which should be done with it a bit warmed up) you'll get a sense of about where you want to wind up. This is a bit tricky to accomplish since it can vary a bit due to the brush/commutator resistance when not moving, however you can still get a sense of it. Suppose your motor was say 10 ohms. You really don't want to drop in a 0.1 ohm motor.

There is much, much more to it but those are some of the points.

Thanks for the info 👍

The motor seems to have zero cogging and is there is very little friction. As eKretz said I think I should probably start by upping the juice to the stock motor and see how I get on. I've added a motor heatsink and small fan to help it keep cool.

Would be nice to try a Fana-Buchi in there just to see though.
 
Fish scale it, and try WheelCheck or viddies for some baselines. Then mod and retest.

I can get well over 20 pounds at the rim without extreme settings or heat woes and with less load per motor than stock. More if I crank it. This can be a lot of fun in rally. Since you can get an extreme force one way and then the other and then back. So there is a >40 pound difference between the directions which your hands and arms feel.

I cant use WheelCheck as its the original MS WRW for xbox 360. It is PC compatible but when MS wrote the driver sofware they forgot to enable FFB. So it does work on PC but without FFB. Hoping some software genius might do something to remedy that someday...

Whats the best way to do the fishscale test?

Oh, and whats viddies?
 
Haha, I think it's more that they feel like they're being teased and taunted rather than not being aware or preferring not to realize that there are better ways to reach goals. But maybe I'm wrong. It might be better to give everyone a general idea of what you've discovered than to say, "I found something that works great for this problem everyone's having, but I'm not going to share it." I think most are looking to share info here and some maybe feel like you're a bit evasive with certain answers, lol. At least that's the way it looks to me by some of their responses and PMs.

Hey RXX, how do you think a coreless motor would work? I've seen some of these and they have ridiculous torque and practically next to nothing for rotor inertia. It might be too hard to get rid of heat though since there's no "sink" effect from the iron core. Wonder if it would be worth trying a couple eBay versions. I think some of the very best motors made today are Maxon, Faulhaber, etc. but boy are those suckers expensive. Close to $500 for one motor the size of the Bühlers.
 
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It sounds like you do have a damaged commutator. RacerXX's method of redoing the water break-in could possibly bring it back, you should at least try it. Replacing the motor should be cheap and easy, but Fanatec can be difficult to get parts from out of warranty sometimes for some reason. You might be able to change to a slightly different motor with the same size and characteristics if you do some looking.

Thanks again, I'll look into it.
 
Haha, I think it's more that they feel like they're being teased and taunted rather than not being aware or preferring not to realize that there are better ways to reach goals. But maybe I'm wrong. It might be better to give everyone a general idea of what you've discovered than to say, "I found something that works great for this problem everyone's having, but I'm not going to share it." I think most are looking to share info here and some maybe feel like you're a bit evasive with certain answers, lol. At least that's the way it looks to me by some of their responses and PMs.
At a certain point I think it is fair to keep something to one's self. I have made innovations in music, the details of which I would never share publicly. You will get no grief from me RXX.
 
Had quite a breakthrough RE Heat Management. Now I can do it in a much simpler manner with less complexity. But I will keep that under my hat for now, gotta test lots more. Found some things to do that are brandie new, never done before by anyone. How's that for cryptic?


This is great news, simpler works, I hope you can share when it is all tested, we can all use a coolier wheel.👍


coolier



.
 
Had quite a breakthrough RE Heat Management. Now I can do it in a much simpler manner with less complexity. But I will keep that under my hat for now, gotta test lots more. Found some things to do that are brandie new, never done before by anyone. How's that for cryptic?

I do not yet know how this is differing between the other things you have posted? You are talking about many things and including very few details always... This is fine.

What I am confusing about is why we see no video or pictures to support these comments. You show the brake made but that is all. Why is this? You speak frequently of using 4 motors but there is no proof of this.

I am not meaning to be rude. It is simple fact that people may be more curious if these things were done rather than whether they are being hidden. Because of this I do not think you not saying this will be upsetting. It is normal for you so I would not worry.
 
I'm not selling anything or whatever. Just using some of my skills and creativity on my hobby. If I share viddies / pics of my latest solution it won't be for at least two months. Some would rather hear nothing at all until a final released product comes out complete with a web store and a large quantity in stock. I'm not doing that I am just sharing some of my messing around. I had an excellent breakthrough but many variations and more testing is needed. That can take some time, and when I get busy on my main work it will take longer.

If you have created things, my POV will tend to make more sense. I don't know whether you create or innovate. If you do, it is fine with me if you talk about it, or don't.

Hey some of my favorite musicians are in the recording studio now I hear. Why the H are they not live streaming all of this? Their new music won't be out until maybe this Fall. Get my point?

Why this talk of selling?

I think many would like to see a photo of 4 motors mounted in wheel ready to use. Better would be video even on your blog.

You do seem to have annoyance about these questions but you should not. It may be nice to have pictures which you often post accompany your comments. Without these people wonder. Like me.

What is wrong with a simple photo as you post so many others? We have only seen posts with things on cloth on tables. Indulge us some instead of being upset.
 
I understand where RXX is coming from, I guess it's more of a personality thing maybe. I understand the other side of it too, though. Some people like to show everybody their stuff and help others learn, some don't. Just like some people believe everything they read on the internet or are told, and some don't. I have seen a few things and talked about a few things with RXX that he hasn't posted here, I am certain that he is doing what he says he is doing, I don't feel he's just making up stories.

On another note, since a lot of people have been asking me through PM's about availability of better motors, I contacted a guy that actually makes his own custom motors and invited him to work something up and see what he can possibly do. His name is John Holmes and his company is Holmes Hobbies. If there are enough people interested and he gets something worked out that is effective, maybe if enough people buy them we can get price to a reasonable level. He is going to try to hit the Buhler pricepoint, which are ~$120 new.

And also, RXX, no comments on the coreless motors?
 
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