Awesome video why os no one talking about this on youtube? They all expect us to know our printers max acceleration, which we dont if we have Frankenstein machines lol.
My Acceleration was fine on X axis but Y axis was skipping at anything above 6500 so i kept it at 6500, Now i have just finished a long process of installing linear rails to my Y-axis and now the Y -axis skips at anything above 5000 lol. any ideas on what could be causing the motor skip? belt tension? misaligned rails? some advise would be awesome! great video btw, my goto from now on when testing speed accel
I am not sure about your printer configuration, the printer main board and the stepper driver. 1) To go fast, you need to feed more current to the stepper motor, but that depend if the stepper motor can handle or not, please check the specs of the motor before increase, otherwise the motor will get very hot and fail. 2) It also depend on the stepper driver if it can deliver the required current or not. 3) It could be that you have reached the limits of the stepper motor, if so, you need to back-off a bit. belt tension - if you are able to go above 3k, then I don't think so. misaligned rails, I believe you have Cartesian printer, if so, disconnect the stepper motor cable for safety, then move the bed back and forth slowly, you must not feel any resistance.
@@radiy3dprints its a ender 3, skr mini e3 v3 with tmc 2209 drivers. Default nema 17 44-34 motors all at stock settings and current (0.56amp) all is at the exact same settings as before i installed the rails. The rails move as freely as i could get them, I had cleaned and greased the carriage thoroughly and got new better ball bearings and it glides like.butter before attaching to the printer. So im sure its the rails being attached to the printer thats creating more tension that the previous V roller wheels as I could get 1400 more acceleration with the wheels before the motors skipped
@@billy.the.maker. i reapplied the rails, lubed the carriages, loosened the plate on the carriages , basically made the bed move smoother/lighter. Tightened the belt . Its better. But next ill put the old extruder motor on it as its got more torque than the default Y.
Acceleration values must not be changed once tuned. The correct place is in the printer firmware/config as they are related with the printer hardware and not with the actual printing object. If you set in Orca Slicer, it will override those values. Comment if you still need to see.
@@radiy3dprints hello , i still need to see it because im just new to orca, and also i tried to the accel and speed guide, i always got microstep of 127 for both stepper x and y, even if i change the accel value
@@radiy3dprints just worked on it and it was great after seeing the "ACCEL_TO_DECEL error which i just commented out. stock hardware SV05 X and Y cant do much but at least I got it dialed in more. Thank you! this was better than printing out the L shape wall.
So what did you just test? How fast it possible to shake by printhead and table? And what this value is actually worth? It the same how printer manufacturers write on a box “amazing speed over 9k mm/s”. It’s much more useful to find the maximum acceleration that can be used for printing without loss of quality. And there we will find that the speed is limited by the performance of the hotend or the rigidity of the structure or belts and so on. So that’s one of the dozens points how to really find out max acceleration But if the essence of your video is only the speed of movement of the head and the table, then no questions
@Zenyamh , yes, this video was focusing on finding the max speed limitations and not the quality, though I din't find any limits with the hotend at the max speed but on ghosting/rigging, I am waiting for ADXL345 to arrive so I can work on InputShaper for quality.
With newer version of Klipper, max_accel_to_decel is deprecated in favor of minimum_cruise_ratio. Remove the reference of "ACCEL_TO_DECEL=" from [gcode_macro TEST_SPEED] section. Reference: www.klipper3d.org/Config_Reference.html#printer
How does this relate to real life? My Y-axis skips at 2000 (much more than 16 or even 50 steps) , but I print everything at 3000, and there is no loss of quality.
Your printer's firmware reported an error: Error on 'SET_VELOCITY_LIMIT VELOCITY=750.0 ACCEL=7500.0 ACCEL_TO_DECEL=': unable to parse Due to this error, OctoPrint was not able to continue to communicate with your printer and sent an emergency stop command M112 to ensure all heaters are turned off, then disconnected. Here's the last communication with your printer before this error occurred:
@@radiy3dprints and i didn’t get that. We will assume i set that settings. How can i increase the speed? When i started the print, it’s printing normal speed.
so i did this with my glass bed my glass bed went flying of the heating bed. luckly it dent break because it fell on my bed T.T, sooo not to do this with glass bed on i guess XD
