I have not ripped up a wheel yet, but, i have a spare g27 laying about the place that can be sacrificed.
I have some questions about the hardware from anyone that knows.
My assumptions:
there is a stepper drive with a rotary encoder? or a just a servo?
Its connected by a geared belt to the wheel?
If yes above, is construction heavy enough for me to machine up some unotched 15' vbelt replacements under high load?
Anyone know the hardware resolution of the stepper? 1.8/0.9/0.6? (ignore if servo)
Further Assumption on those assumptions.
If it is a stepper+encoder then somewhere are microstep settings to adjust resolution, anyone found them?
is the "notchiness in fact the belt, or just the stepper magnets transmitting to the wheel?
(i have some dirt cheap 5 axis geared belt drive systems that are silky smooth, the only thing you can feel by hand turning the drive are the actual magnetic poles, not the belt, but once microstepped and in motion zero impact on the feel of the drive). CHeap belts with too much eleasticity can cause teeth to "rub/release" and cause notchiness, but again, Im doubting its this.
As we know, more speed == less torque, and more microsteps == less actual positional accuracy, so presumably if its a stepper, then going from 1.8 to 0.9 will half the notchiness at the expense of torque, unless you go beefier, and beefier 0.9 degree steppers are pricy...
IF its a servo it is already rubbish because only the encoder is handling positional accuracy, they have less poles typically and would feel far more "lumpy" than they do, in this case its just a cheap belt mechanism that can be addressed. A self braking servo with a higher positional rotary encoder can help with that, but I doubt its the case. (and they are expensive!)
In all cases, presumably some hex hacking is required to find the settings in the logitech software or ffb will be screwed.
Anyone tried this or a heads up to a blog of someone that has.
TIA
I have some questions about the hardware from anyone that knows.
My assumptions:
there is a stepper drive with a rotary encoder? or a just a servo?
Its connected by a geared belt to the wheel?
If yes above, is construction heavy enough for me to machine up some unotched 15' vbelt replacements under high load?
Anyone know the hardware resolution of the stepper? 1.8/0.9/0.6? (ignore if servo)
Further Assumption on those assumptions.
If it is a stepper+encoder then somewhere are microstep settings to adjust resolution, anyone found them?
is the "notchiness in fact the belt, or just the stepper magnets transmitting to the wheel?
(i have some dirt cheap 5 axis geared belt drive systems that are silky smooth, the only thing you can feel by hand turning the drive are the actual magnetic poles, not the belt, but once microstepped and in motion zero impact on the feel of the drive). CHeap belts with too much eleasticity can cause teeth to "rub/release" and cause notchiness, but again, Im doubting its this.
As we know, more speed == less torque, and more microsteps == less actual positional accuracy, so presumably if its a stepper, then going from 1.8 to 0.9 will half the notchiness at the expense of torque, unless you go beefier, and beefier 0.9 degree steppers are pricy...
IF its a servo it is already rubbish because only the encoder is handling positional accuracy, they have less poles typically and would feel far more "lumpy" than they do, in this case its just a cheap belt mechanism that can be addressed. A self braking servo with a higher positional rotary encoder can help with that, but I doubt its the case. (and they are expensive!)
In all cases, presumably some hex hacking is required to find the settings in the logitech software or ffb will be screwed.
Anyone tried this or a heads up to a blog of someone that has.
TIA
