The XL is equipped with our new next-gen extruder, “Nextruder” for short. Did anyone say Prusa XXXL? □ I think nobody noticed it yet, but even the printers we’re showing at EXPO 2020 Dubai are using these pads – just in a 3×3 pattern.īut I think it’s time to get to another star of the show! The Nextruder and always perfect first layer With these 9×9 cm segments, we can scale up or down our machines as required. Needless to say, the segmented heatbed was not developed just for the XL. One of the obvious benefits is the possibility to heat only some of the 16 heatbed segments in case the printed object is small enough. We can do all sorts of things with the segmented heatbed – like alternating heating of individual segments in a checkerboard pattern (via PWM), which reduces the load on the PSU. However, once you have a large heatbed, the issues become more noticeable. The problem isn’t very evident with smaller surfaces and can be partially compensated for with mesh bed leveling. To explain it a bit: regular heatbeds have a tendency to warp as the temperature increases. Our new heatbed with individually controlled 9×9 cm segments is not only energy-efficient (you can turn on/off individual pads) but also effectively reduces warping thanks to its expansion gaps between each segment. Why not simply use a scaled-up version of our standard “MK52” bed? Every time I see a large-scale 3D printer producing something small, I can’t help but think how wasteful it is to heat up the entire huge heatbed and burn through kilowatts of energy any time you want to print something. With the dimensions set, we could also finish developing another one of the cutting-edge features: our new segmented heatbed. There will also be optional addons (draft shield/enclosure) available, which will be revealed later. Plus, there are various practical additions like telescopic filament spool holders on the side of the printer, which can hold up to 2-3kg spools – they will be needed because the XL can chew through a regular filament spool in no time. Rest assured that we’re implementing all the proven features from our current 3D printers to reduce the stress from long prints – like power panic and filament sensors, for example. Either way, no matter how fast the XL will be in the end, huge prints (several kilograms) will still take days to finish. However, we are considering an unsupported, but official Klipper firmware for those looking to find the limits. Just an upfront note: we are aiming for print quality, not looking to join the SpeedBoatRace. We’re still tweaking firmware and print settings to tell you the max speed, but you can be sure that thanks to the small and lightweight direct-drive extruder the XL can be very fast. There’s another important aspect to consider with massive objects: the larger the print is, the longer it takes to finish. CoreXY was the way to go.ģ6 cm cubed is more than enough for a vast majority of large objects – you can, e.g., print a cosplay helmet in one piece easily, or produce detailed architectural models. Using the same design would bring a number of headaches to deal with – a large heavy heatbed moving along the Y-axis, less stability with higher Z-axis values and so on. So, building a larger MK3 would have no actual benefits. The larger a printer is, the more prone it is to vibrations and other unwanted effects that translate into bad-looking prints. We settled on 36 cm (14.17’’) cubed – for a number of reasons. The first one was, obviously, the right size. There were a number of variables we had to consider when designing our first CoreXY printer. You can even consider it to be a bit of a showcase for our future 3D printers. However, they work differently this time around with a refundable deposit instead of paying the full price upfront – there’s more info below.Įssentially, the XL is something completely different than just an upscaled MK3S+. Nearly every aspect of the machine has been designed completely from scratch and it is truly a beast! Currently, it’s scheduled to begin shipping in Q2/Q3 2022 but we’re launching preorders now. There are some crazy features packed into the XL (like an always-perfect first layer!) and I can’t wait to dive into the details because the new printer has much more than just a large build volume. □ I’m happy to give you the first look at the Original Prusa XL, our upcoming large-scale CoreXY 3D printer with a 36×36×36 cm (14.17’’ cubed) build volume, next-generation extruder, new hotend, segmented bed, and a tool changer! Hello everyone, here’s the BIG news many of you have been waiting for (some might say that Friday came a bit early).
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