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HAPP WHEEL / SERVO / FFB HACK - 1st Racing Cab Build. My Notes
brad808:
18v should work fine. If not get a new ps at that time. Try what you already have though.
You can get rid of the rattle through software. Part of the reason I've taken the ps2 out if my cab right now. Too much of a headache. Set the amc perfect for one game and then switch games it's way off. No software control. The only way to get it to work with all was to have the ffb strength too low to be any fun. On the computer same thing set it for one game and load up another it's off. I set the amc so it worked well with the test ffb settings in windows/ logitech profiler. Make that sort of home base, then mess around with ffb settings per game/ emulator from there too remove any rattle.
Just to clarify the stock logitech wheel has the same issue.
BadMouth:
Would it be possible to put some kind of "on the fly" voltage adjustment between the pcb and the servo amp inputs?
It would be nice to be able to adjust the feedback strength with a hidden knob.
brad808:
--- Quote from: BadMouth on December 06, 2011, 11:19:47 am ---Would it be possible to put some kind of "on the fly" voltage adjustment between the pcb and the servo amp inputs?
It would be nice to be able to adjust the feedback strength with a hidden knob.
--- End quote ---
That was sort if my initial thinking as well i mentioned in my thread a few Weeks ago i was considering putting a put with the same values as the reference in On the amc in a place easily accessible. The problems I've thought of so far regarding a pot there is first nobody else would be able to use it except for me, not a big deal. The other problem is that the offset needs to be adjusted as the voyage changes to read 0 at center. I would be curious though if a pot like you mentioned would be the hardware equivalent of "overall feedback effects strength" in software.
Sort of a side note from that. Has anyone powered logitech board with 24v 6amp power supply and went directly too motor by pass servo? I assume it might be too much for the logitech board to draw. then a pot would be ideal i would think. Not sure what the power rating on logitech are but that might be Ann alternative route beefing that up.
Hopefully collectively we can tweak and make small changes to the hack to get a more ideal setup.
Phone = spelling mistakes sorry
BadMouth:
--- Quote from: brad808 on December 06, 2011, 12:15:19 pm ---Has anyone powered logitech board with 24v 6amp power supply and went directly too motor by pass servo? I assume it might be too much for the logitech board to draw. then a pot would be ideal i would think. Not sure what the power rating on logitech are but that might be Ann alternative route beefing that up.
--- End quote ---
There is a company that makes a kit to run that size power supply to a G27 (still using the original motors and using fans to keep them cool). It involves replacing a bunch of surface mount components on the G27 PCB, so I'd assume that the original components can't handle the current. I doubt it's pulling as much current as the happ motor would.
Search for "Arc Team G27-E mod" for more info.
EDIT: The G27 mod uses a 36V supply.
brad808:
--- Quote from: BadMouth on December 06, 2011, 01:35:37 pm ---
--- Quote from: brad808 on December 06, 2011, 12:15:19 pm ---Has anyone powered logitech board with 24v 6amp power supply and went directly too motor by pass servo? I assume it might be too much for the logitech board to draw. then a pot would be ideal i would think. Not sure what the power rating on logitech are but that might be Ann alternative route beefing that up.
--- End quote ---
There is a company that makes a kit to run that size power supply to a G27 (still using the original motors and using fans to keep them cool). It involves replacing a bunch of surface mount components on the G27 PCB, so I'd assume that the original components can't handle the current. I doubt it's pulling as much current as the happ motor would.
Search for "Arc Team G27-E mod" for more info.
EDIT: The G27 mod uses a 36V supply.
--- End quote ---
hmm now that looks interesting. I'd be willing to swap out some parts on one of my boards if we can find a chip/ circuit that can handle that much current. I already have the one pcb that has a blown chip that powers the ffb. Obviously the g27/25 hack is quite a bit different as a whole but the idea of changing a few components regarding the ffb is an eye opener. Anyway I'll keep that in the back of my head. I'll put that on the back burner with all the other little projects
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