This maybe a n00b question: Advantage of coreXY vs Y-slider
As the title says, what is the difference between the two dominate printer design the coreXY and Y slider. Maybe it has to do with print size, coreXY printer are good for large print, while Y slide printer are cheaper and smaller. I never seen a tiny coreXY or large Y slider. Beside volume are there any other differences?
RE:
This little one has been around for a while.
RE: This maybe a n00b question: Advantage of coreXY vs Y-slider
Because you don't have to move the whole print you will only move light parts. So, you need less energy and will have less ghosting and can run at higher speeds. The freely movable printhead allows for tool-changing systems. You need less table space than a "bed slinger". Housing is easier.
RE: This maybe a n00b question: Advantage of coreXY vs Y-slider
For usual config, X track and extruder assembly are not significantly lighter than the heat plate. Unless the build volume reached a point where it become inconvenient to move the large plate also with the accumulated weight of print material. I think in general, plate area larger than 300x300 is where we have to use core XY. Maybe this is also why Prusa only adopt the coreXY until the XL series.
RE: This maybe a n00b question: Advantage of coreXY vs Y-slider
Larger printers are not necessarily better for CoreXY due to the much longer belt paths and need to maintain consistent belt tension. It's my understanding that is the reason Voron recommends against going larger than 350x350 with the 2.4.
RE: This maybe a n00b question: Advantage of coreXY vs Y-slider
For usual config, X track and extruder assembly are not significantly lighter than the heat plate. Unless the build volume reached a point where it become inconvenient to move the large plate also with the accumulated weight of print material. I think in general, plate area larger than 300x300 is where we have to use core XY. Maybe this is also why Prusa only adopt the coreXY until the XL series.
The thing is that you do not only move the bed, you move the bed plus the printed object. If you print anything substantial the weight of the object will be equal or surpass the weight of the bed. This does matter in fact for inertia and consequently artifacts. It is an issue traditional Core-xy don't have (only along the z-axis) and some core-xy like the Voron 2.4 have an entirely static bed.
Especially when you are using a core-xy design in combination with a bowden setup you can reach speeds and low inertias which are simply impossible on a bedslinger.
Another advantage of the core-xy design is that it is simply better suited for enclosure as the bed doesn't need extra space to move. Your printer size can be fairly close to your build volume size as a consequence. You really want to keep the enclosure as compact as possible. In case of industrial printers, print chambers below the extruder are easier to insulate from the rest, keeping high chamber temperatures away from all motors, including from direct drive extrusion motors.
Mk3s MMU2s, Voron 0.1, Voron 2.4