This summary of the video was created by an AI. It might contain some inaccuracies.
00:00:00 – 00:08:28
The video explores the ongoing debate between bed slinger and CoreXY 3D printer designs, focusing on performance, costs, and practicality. Bed slingers, which move the print bed along the Y-axis, face challenges with acceleration and require additional components for stability—making them more expensive despite newer claims. CoreXY printers, which move the print head instead of the bed, offer faster acceleration and reduced print times but come with added complexity and costs. Although the SV06 Plus bed slinger showed strong performance at lower accelerations and was particularly effective for PLA printing, its design flaws and the superior print quality of some CoreXY models like the Klipperized SV06+ were noted. The choice between the two largely hinges on specific needs, with CoreXY being favored for higher speeds and enclosed environments, and bed slingers still being valuable for ease of use and PLA prints. The discussion concludes with an open invitation for viewer feedback and support for further exploration of 3D printing technologies.
00:00:00
In this segment of the video, the presenter addresses the claim that bed slingers in 3D printing are obsolete compared to CoreXY designs. He proposes to investigate this by comparing costs, differences, and print quality between the two systems. A bed slinger printer’s bed moves along the Y-axis, which limits acceleration due to the bed’s weight, while CoreXY printers have a stationary bed and move the print head. The SV06 Plus printer is used for testing, highlighting the motion issues with larger bed slingers, such as vibration and the need for supporting rods to maintain rigidity. Preliminary cost comparisons reveal that even an unoptimized bed slinger design is more expensive than CoreXY by about 37%, especially when using linear rails. The segment concludes by noting that CoreXY designs are surprisingly cheaper when considering the motion system costs.
00:03:00
In this part of the video, the speaker discusses the challenges and solutions for increasing the rigidity and stability of a 3D printer assembly. They highlight the need for longer rails, additional carriages, and spaced out components, leveraging a bed leveling probe and metal spacers. Linear rails on aluminum extrusions significantly enhance stiffness, with the bed’s mounting plate being the limiting factor. The speaker compares Z-axis configurations, noting that while Trident’s three independently driven motors add cost, they offer better leveling compared to the budget-friendly single Z motor and synchronized leadscrews setup of CoreXY systems. They note that CoreXY designs require additional components like belts, pulleys, and bearings, increasing costs, but overall, the cost difference between designs is about 10%. To determine which design is superior, print results of a Benchy project and a test cube at various acceleration settings are compared. Surprisingly, the SV06+ bed slinger performed better than expected, particularly at lower accelerations, attributed to issues like heat creep and cooling in CoreXY machines.
00:06:00
In this segment, the video discusses the comparison between different 3D printer types, focusing on bed slingers and CoreXY printers. It is noted that CoreXY printers can achieve faster acceleration and reduce print times, but the hotends limit speed increases. Interestingly, the cheapest printer tested, the Klipperized SV06+, showed the most consistent extrusion and best flow rate, leading to superior print quality at reasonable accelerations. The speaker emphasizes that the type of printer alone does not determine its performance since design quality plays a crucial role. Bed slingers excel in PLA cooling, while enclosed CoreXYs are better for printing ABS. Creating a versatile printer requires significant knowledge, resources, and money. The video points out a flaw in the SV06+ where the part cooling and mainboard fan control are tied together, potentially causing issues. Finally, the speaker expresses skepticism about the availability of cost-effective CoreXY printers and asserts that bed slingers remain relevant, especially for PLA printing and ease of maintenance. The video ends with an invitation for viewers to share their opinions in the comments and support the channel on Patreon.