How FAST is KLIPPER REALLY? ...CHEAP BED SLINGERS ?!

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Klipper firmware is considered to be a speed at quality boost. Features like Input Shaping and Pressure Advance should level-up every 3D printer. But how much can you REALLY profit from using Klipper? I’ll give you the answer comparing four low-end bed slingers before and after Klipper installation! Faster printing is one the big things in FDM at the moment. Manufacturers like Fokoos and Anker advertise their newest bed slingers being five to six times faster, which is… in my opinion… quite misleading: What really matters are the gains in actual print time… Klipper might be one of the most advanced Firmwares for FDM printing at the moment. Using input shaping along with higher accelerations as well as pressure advance should improve the print times significantly without sacrificing print quality. Is it really worth the efforts? I checked it out with these four cheap Bed Slingers: The printers for this video were provided by Geekbuying, BIQU, Fokoos and Kingroon. The BIQU B1, the Artillery Hornet and the Fokoos Odin-5 F3 can be considered as quite typical Ender 3 clones. The Kingroon KP3S is a cheap and interesting smaller scale printer I wanted to include into this comparison. Unpackaging and building these printers was quick and easy…except for the BIQU B1: There is quite a bit more to assemble and to adjust correctly, which could cause potential problems for absolute beginners. Concerning the spares and accessory you get with those printers: Not worth mentioning the differences. Everything is provided in order to get started with these machines. But, instead of using the reskinned or old CURA versions provided with the printers, I went for an easier and better way. All of them are i3-style printers – just like the Prusa MK3, which comes with thoroughly optimised profiles in Prusa Slicer. As a baseline for the stock Marlin performance, I simply used the 0.2mm quality pre-set of the MK3, which works perfectly on almost every bedslinger. The only settings that need to be adjusted, are concerning some basics for the machine itself, extrusion and retracts as well as the automatic cooling settings. Setting a viable “Max volumetric speed” value is very helpful, as it automatically limits the printing speeds according to the performance of your extrusion system. In order to check if there is any unexpected behaviour on these printers, I did a quick flow rate test on PLA+ with Stefan’s helpful tool. The KP3S, BIQU B1 and the Artillery Hornet perform at around E3D V6 Level. The Fokoos Odin, with its Volcano clone and custom extruder, performs is around 35% superior to the other printers. So, no surprises concerning extrusion. For the automated cooling settings, I printed two test models iteratively on each printer in order to determine the minimum layer time and the minimum print speed for each printer: The circular cooling concept of the BIQU B1 works very well, followed by the 4010 setup of the Fokoos Odin. The air duct attached to the 5015 fan of the KP3S would profit from some optimization concerning the air duct design. The Artillery Hornet though is underperforming: It might have two 4010 fans, but the airflow is dispersed way too much here. I did a bunch of different prints on the stock printers and documented the print-times. All in all, it’s a good mix for the comparison before and after installing Klipper, as there is different emphasis on the prints – like acceleration, speed or cooling performance. All prints came out well except for the Kingroon KP3S. I was not able to get rid of the stringing and there were some visible extrusion flaws. End of the story: The hotend was not properly assembled, leaving a gap between nozzle and heat break. Therefore, the PTFE inliner of the heatbreak got damaged. I didn’t receive a spare part in time, but I went on with the tests on the KP3S. But now, let’s finally check out the Klipper boost on our low-end bed slingers! The Klipper documentation is very well done and also very detailed. There is a ton of background information, which is great on the one hand, but might scare off some users because of the amount of text to read and understand. Some of the best Klipper tutorials you can check out additionally, are made by Teaching Tech and 3Dprinterbeginner. Basically, the procedure is the same for every 3D printer or mainboard. If you follow Klipper’s official documentation step by step, you’ll definitely succeed. I’ll show you why it is worth it… even for cheap low end bed slingers! Input Shaping will help to multiply accelerations and speeds - at the same or even better print quality. Pressure advance is a measure in order optimize the filament flow, enabling quality printing at those higher speeds. Last but not least: Configuring firmware settings in Klipper is very convenient in comparison to Marlin. You simply edit a text file and restart the firmware. No recompiling and re-flashing… Though, in order to take full advantage of Input Shaping and Pressure Advance you need to do measurements and calibrations, as the settings need to match to the used hardware setup. For input shaping, I use the automated measuring, as it more precise, but it requires additional hardware such as an accelerometer and additional wiring. Also, very important to know: Klipper does not support many displays natively, that connect to the printer’s mainboard. The “Klipper Screen” addon supporting displays directly connected to a raspberry pi is an alternative you can check out. The results and calculations of measuring resonances and Input Shaping gives in some extend an evaluation of your printer setup. This concerns the construction itself as well as the build quality, the weights of the moved masses in X and Y as well as the belt tensions. As a result, you get recommendations for the maximum accelerations for each direction as well as for the settings of the frequencies for the shapers. Acceleration should be validated afterwards doing a test print procedure, which increases the acceleration in dependency of the layer height – By judging the resulting ringing and smoothing, this helps you to find out the max acceleration in order to not loose print quality. Feasible accelerations for those cartesian printers range from around 3000mm/s² up to around 4000mm/s². Using nowadays marketing terms like from Fokoos and Anker, this would be “six to eight times faster” in comparison to the 500mm/s² of most Ender 3 clones. This will never ever ever ever transfer into the real gains in print-times – we’ll talk about that later. For all printers I also tweaked the extruder and z-movement settings. Thanks to pressure advance, which is retracting all the time anyways, retract lengths can be lowered to somewhere from 1 to 3mm – depending on bowden or direct setup. Also, retraction speeds and accelerations can generally be set way higher than the stock values. A fast and save value for PLA is somewhere between 70 and 100mm/s for retract speed and around 3000 to 5000mm/s² for retract acceleration. Thanks to pressure advance and input shaping we can also go with decisively higher speeds in our print settings. This time, I use the 0.20mm speed system preset for the MK3 as a baseline. I did some test prints and, in the end, I increased the speeds up to 100% depending on the feature. We are still limited by cooling and the max. volumetric speed of the extrusion system, because Klipper won’t improve the hardware magically. I repeated the set of prints I did before on stock firmware, but now with all the Klipper features enabled and with the improved settings in Firmware and slicing. The quality is at least as good as on marlin and the slower prusa 0.20mm quality pre-set. But how much faster is Klipper concerning print times really? Klipper boosts these printers, being cheap bedslingers, up to two times faster, which definitely is a tiny bit mind-blowing, but far away from the marketing of Fokoos and Anker. Smaller prints like a Benchy for example, which are cooling limited due to short layer-times, do not profit that much from Klipper, because again: it doesn’t magically boost the cooling performance. Though, it drops the print-time significantly all the way ranging from at least saving 30% up to 50% of the overall print times. This can make a huge difference: This might help for your daily routines, your progress in projects or your 3D printing business might become more profitable as you could double the throughput of your machines. So: Is it worth it? From my point of view: Definitely, because I am impatient and I love to go fast! But, I also have quite some experiences with Klipper and the necessary calibration procedures. Furthermore: I mostly don’t really use or need displays on my 3D printers as I always have a smartphone or a PC nearby. In the end Klipper Installation and calibration is quite simple, but it can take time and a lot of things to learn for beginners. On the other hand, reading, trying, understanding and succeeding with new topics is fun in the end, right? However, there is good news for the future: The commercialisation of Klipper for the mainstream has started and we’ll see Klipper out of the box on more and more printers in the future. The only thing that concerns me a bit: Even more than Marlin, Klipper needs well-tuned settings for Firmware and Slicing. After testing some bed slingers the last months, I have to say: That’s not really the parade discipline of cheap printer manufacturers… Bu,t we’ll see! RIGHT HERE ON 247 PRINTING! Oh, and don’t forget to leave a like and comment and subs…blablabla – you know what to do!
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Channel: 247printing
Views: 196,680
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Keywords: fast printing printer, speed printing, 3d printer projects, klipper firmware, fastest benchy print, the fastest 3d printer, do it yourself projects, do it yourself, artillery hornet 3d printer, artillery hornet mods, kingroon kp3s, kingroon 3d printer, biqu b1 3d printer, biqu b1 upgrades, fokoos odin-5 f3, fokoos 3d printer, fokoos odin smart, anker make m5, anker make 3d printer, anker maker, klipper firmware install, klipper firmware retraction, bed slinger printer
Id: Ae2G7hl_pZc
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Length: 10min 4sec (604 seconds)
Published: Fri Sep 02 2022
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