CoreOne Printer Resonance Issue
I recently purchased the CoreOne printer, assembled it, and started printing. Compared to my previous MK3S, it was a marvel in terms of speed. However, at the highest settings, I noticed that the printer started to vibrate during flat prints. I have it set up in a living space on a sturdy shelf that is well anchored to the wall. Despite this, the printer still vibrated even with the shelf secured.
To address this, I bought vibration-damping pads designed for washing machines and placed the printer on them. This did reduce the vibrations but did not eliminate them entirely. I could still see the impact on print quality. Consequently, I lowered the printing speed to a BALANCED setting for finer details and to STRUCTURAL for other prints. While this improved the situation, I found myself questioning why I had invested in the CoreOne in the first place.
Friends from the Academy of Sciences – specifically from the Plasma Physics Institute – mentioned that they had placed their MK3S on a heavy concrete slab, which significantly improved their print quality. However, I really didn't want to place a concrete slab on a shelf in my room.
After searching for a solution, I realized there was space near the Z-axis motors in the printer. After some measuring, engineering work, and using a cutting tool, I cut two tiles from leftover artificial stone (2 cm thick) and placed them in the space around the motors, securing them with double-sided tape. The weight of these tiles is 8,200 grams, which increased the printer's weight by approximately 40% and significantly lowered its center of gravity.
This modification helped tremendously. I can now print again at the SPEED setting and cannot tell the difference between SPEED and BALANCED.