Re: MKS LV8729 , a 128 µStep Driver // Any test?
QuoteDjDemonD The vref at 0.4v gives 0.8A so you're running those motors at/near their maximum current handling, they will always be noisy when near that level. The document above has values of vref...
View ArticleRe: MKS LV8729 , a 128 µStep Driver // Any test?
I couldn't get tmc 2100s to work, too low vref skipped steps, too high vref skipped steps, very little window of usability. Motors and drivers very hot. The lv drivers are medium noise, but motors and...
View ArticleRe: MKS LV8729 , a 128 µStep Driver // Any test?
There are 3 brands of it that I could find: Original watterott, fysetc brand and mks brand. They all come stealthChop mode which is not suitable for 3d printers because of their low torque....
View ArticleRe: MKS LV8729 , a 128 µStep Driver // Any test?
QuoteI tried fysetc and there is no spreadcycle mode for it as the seller declared to me I'm using fysetc too and was able to change the modes by soldering bridges on the underside. ( see thread about...
View ArticleRe: MKS LV8729 , a 128 µStep Driver // Any test?
Quoteo_lampe QuoteI tried fysetc and there is no spreadcycle mode for it as the seller declared to me I'm using fysetc too and was able to change the modes by soldering bridges on the underside. ( see...
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Re: MKS LV8729 , a 128 µStep Driver // Any test?
Yes, I also soldered CFG2, but that wasn't useful yet.
View ArticleRe: MKS LV8729 , a 128 µStep Driver // Any test?
I tried both CFG1 solder bridge and CFG2 solder bridge and neither mod resulted in reasonable torque, low noise and no skipped steps. Does anyone know how to set the LV drivers in fast decay? This is...
View ArticleRe: Wich stepper motor for MKS TMC2100?
Sorry to bring up almost a dead thread, but why not a4988 since u using 8bit board?
View ArticleRe: DRV8825 vs TMC2100 vs THB6128
So from reading this thread conclusion is microstepping does not increase resolution and reduce torque compare to lower microstepping. So there is no point of higher microstepping driver beside...
View ArticleRe: DRV8825 vs TMC2100 vs THB6128
Quoteclyevo So from reading this thread conclusion is microstepping does not increase resolution... Correct, once you go higher than about 16x. OTOH changing from 1.8deg to 0.9deg motors does increase...
View ArticleRe: Wich stepper motor for MKS TMC2100?
Quoteclyevo Sorry to bring up almost a dead thread, but why not a4988 since u using 8bit board? Because the TMC2100 is smoother and produces less noise...
View ArticleMotor works at 1/16 microstep, but not at 1/2, 1/4, 1/8?
I was trying to find the maximum step rate I could drive my extruder NEMA 17 motor (for fast retraction, basically). I thought using 4 microsteps would afford ~4 times faster speed than 16 microsteps....
View ArticleRe: Motor works at 1/16 microstep, but not at 1/2, 1/4, 1/8?
I'm using retraction of 80mm/s with my RAPS128 drivers in 1/64 stepping mode. I wonder, how fast you want to retract?
View ArticleRe: Motor works at 1/16 microstep, but not at 1/2, 1/4, 1/8?
... could be, the step pulse length is so short, that it won't be detected reliably ...
View ArticleWeirdness after installing BLTouch
Not sure what I messed up, but I am having some very strange behavior after installing a BL touch. All my prints stop after 5mm in the Z direction. Is there some setting I may have tweeked that limits...
View Article6-lead steppers: lower current = more torque?:S
I found these steppers and want to know if it's a typo or real? [attachment 95152 nema23-6lead.JPG] I can only imagine their max. speed is much lower then?
View ArticleRe: 6-lead steppers: lower current = more torque?:S
Numbers look reasonable. Wiring 1 is using full coil so it would have twice the inductance of using split coil. As a result the speed would be reduced. This is the same as wiring an 8 wire motor in...
View ArticleRe: 6-lead steppers: lower current = more torque?:S
OK, got it. It's like a star/delta config on a 3-phase motor. Makes me wonder if it would make sense to make it switchable? Star config for hard work. Delta for travel moves.
View ArticleRe: Motors only vibrate but will not turn
Hello , Same issue. Even tuning the driver( Pololu driver A4988) is not solving problem. Power supply 12v. Connection of motor looks good to me (0.9 degree Nema 23). Thank you!!
View ArticleRe: Motors only vibrate but will not turn
Driving a NEMA23 with an A4988 is quite tricky, if not impossible. It's like driving a 40ton truck with a lawnmower motor... Also running it on 12V doesn't make things easier. What's the rated current...
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