Hello, I am still building a CoreXY printer and a new question arose, please see images.
The top two images are the normal two level construction: if the left stepper rotates, the forces at the hotend try to rotate left or right, will tend to stuck the hotend / linear X block and will have higher friction. The other hotend connections will lower this torque when they have high tension.
But why not avoid this torque by constructing it like in the bottom image, guiding the belts in the middle to the hotend? If the belts are two level, you can arrange the pulleys - by a little offset of two axes - so that the belts are above each other.
The top two images are the normal two level construction: if the left stepper rotates, the forces at the hotend try to rotate left or right, will tend to stuck the hotend / linear X block and will have higher friction. The other hotend connections will lower this torque when they have high tension.
But why not avoid this torque by constructing it like in the bottom image, guiding the belts in the middle to the hotend? If the belts are two level, you can arrange the pulleys - by a little offset of two axes - so that the belts are above each other.