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:
I got this same error from a slow SD card on the CB1. I can't say it's related, but it's a relatively cheap thing to try.
then I noticed something that I don't know if it is linked to this problem or was already there (but I never noticed it): when for example the x axis is homing, I see the y move slightly... for example I tried to give it a g1 command , but I wanted to investigate it after solving the mcu error problem... but could it be connected to a faulty board? if I had time I would try to reassemble the octopus and rpi
did you get this last error? do you have both m8p and cb1? awd? How fast are you going?
what SD do you recommend?
I have the manta and cb1, wasn't going any faster than 16k. This is the one that was recommended to me: https://www.amazon.ca/dp/B06XWMQ81P?psc=1&ref=ppx_yo2ov_dt_b_product_details
SanDisk 32GB Extreme microSDHC UHS-I Memory Card with Adapter - C10...
With the SanDisk Extreme 128GB(1) microSD UHS-I Memory Card get extreme speeds for fast transfer, app performance, and 4K UHD video.(2) Ideal for your Android smartphone, action cameras or drones, this high-performance microSD card handles 4K UHD video recording, Full HD video and high-resolution...
I have this one
And speed on 16k?
1k travel moves.
The one I had had similar markings to yours.
wow…. what version do you have of manta m8p and what version do you have of cb1? maybe then my problem is not the cb1?! I thought it was slow, but if you tell me it's fine... then either mine is faulty, or it's the SD
manta 1.1, not sure what version of the CB1
it definitely seems similar to the transient error i expierenced
let me find the thread
yours is the fastest version... was the one that gave problems like mine?
on Amazon I find similar to yours but samsung... but 64gb... too big? otherwise I have to wait until Friday to have it like your SD
Just a thought, are you running the 64bit version of RatOS by any chance?
It was highly recommended to go with the 32bit as the 64bit has some issues and high memory usage. Maybe thats what is causing troubles with the CB1
https://discord.com/channels/582187371529764864/1118265360701984921
You can see my SD card in that post.
that is a class 1 card. The one posted is a UHS Speed Class 3
that is only with the pi - there is only one version of the CB1 image
ah ok, didnt now that. Nevermind then 🙂
that it arrives soon I only find 128gb... is that too much?
ok purchased with 32gb... but why didn't it cause problems with the RPI? and with cb1 yes? I am pessimistic and I have doubts that I will resolve with a new SD card.... but it would be fantastic to solve with such a small expense 😂
But I don't like using the CPU and RAM very high like you... they remain quite low... then I noticed that when I do a speed test, at 500mm/s it ends... at 550 you hear strange noises (it seems like engines), it reminds me like it loses steps (but isn't losing them), and 600 goes into error
Bigger card shouldn't matter
It's not guaranteed, but it's too easy a solution to not try.
I was advised in that thread that the CPU usage was not the core issue.
I bought one anyway... I'll try straight away tonight... let's hope it's the correct solution... otherwise I'd like to get an octopus pro
Yep
unfortunately even with a new SD, the problem is still here... if I lower the microsteps to 32, I can raise the speed up to 1300mm/s before the error appears... I wonder what is affecting the microsteps...
I'm not sure. You might want to check the klipper discord and see if anyone has used the manta combo and seen the same error. Sorry to hear that didnt work.
then there is this unusual movement of Y while it slides on X... and I don't understand if it is connected to the rest... don't pay attention to the ruined rail, I'm just using them for a test
That's not right at all. Does it show on your prints?
I reassembled my octopus v1.1…. and I can go in the speed test at 800 and 16000 without problems... with manta m8p max 500... beyond that it crashes
I honestly don't think so but it's a problem that I will try to solve after this other problem
and when you exceed the limit, it loses steps, but does not crash the mcu.... so I wonder what problems the manta m8p has
how many microsteps do you have?
Whatever the default motor profile is.
👍🏻
unfortunately it gives me random errors sometimes even during the purge line... in the speed test I even reach 1200mm/s then when printing at 900/1000 it crashes
Well that's not a good sign.