manta m8p poblem speed
hi everyone.., today I transformed the x y steppers into 48v and put an m8p manta but when I homing for example X, I see the gantry move slightly in Y…. how is it possible? first with the octopus and 24v I don't think it did it... then if I did a speed test first at 24v before it went into error I reached 17000 acceleration and 700 speed... now at 600 speed it gives an error even at 5000 acceleration… then I tried a gcode from the speedy benchy that I used in 24v, and now after a while the mcu goes into error... I honestly don't understand the problem... it seems that what makes the error go wrong is the speed... before in the speed test I did up to 700mm/s and 17000 acceleration... now at 600 even at 5000 acceleration the mcu crashes…. I checked and 48.2v comes from the power supply... the power supply is a ndr-480 48v
40 Replies
Config
???
Rr vcore 3 500, manta m8p+cb1…. Awd… I add that by lowering the microsteps to 32, I was able to increase the speed.... could it be due to the slow host card (cb1)?
I think @monsoono was asking for you printer.cfg so we can have a look whether something is configured wrong in your machine
I don't think that's the problem..., because the printouts start and go normally... except that after a while that message comes out
@oskait Is right. Your config file is also a great description of your hardware, and it takes you 5 seconds to download. Also, hit me with that klippy.log.
I'm out of town... but I have a log if you want... it was from a speed test I tried... I think at 600 speed... in 24v I completed it at 700 without problems... here at 48v I only complete it at 500
I had an issue that seems to have come from a slow memory card on the CB1.
This doesn't seem as directly related.
the SD is the same one I used when I went to 24V and RPI and it didn't give any problems... could it be the slow CB1?
Did you start experiencing issues after the 48V change, or the AWD change, or did you do both of those at the same time?
after changing boards (from octopus v1.1 to manta m8p) and adding 48v... I tried putting the old 2209s in place of the 5160s and making the btt manta full 24v work but the problem remains... edit: awd worked fine previously with benchy at 13000 acceleration and 800 peak… the same file fails now… even in the speed tests in movement only, even if I set acceleration 5000 and speed 600, it fails…. I can only raise the limit by lowering the microsteps of the steppers
What drivers? The 5160s now?
Yes btt 5160T pro
but I also tried to reassemble the old 2209... but on the manta m8p and I have the same problems... lower speeds than before
It would seem to me that it would be an issue with the board and not the CB1, can't justify that very well. The definitive test on MCU vs microprocessor would be to test M8P with a rpi.
unfortunately I don't think it can be done 😥.... by lowering the microsteps to 32 I can go faster but it still makes an error and it's different... something similar to this comes out if I remember correctly:
