V-core 4 500 High bow Infront
Hello guys,
Quite new to building a 3d printer my first time actually hahaha. I was wondering what is causing the bend upwards at the front of my bed mesh. Would someone be so kind to walk me through what is happening and if i can adjust it further.
Many thanks in advance
7 Replies
This is more likely your X-axis gantry sagging down a bit
And the rear corners of your gantry need to move down a tad by loosening the frame connectors next to the XY motor mounts and tapping them down
Keep in mind your bed mesh is a representation of your bed in relation to your toolhead. So a warped mesh can indicate a warped bed yes, but it also represents the shape of your gantry. And on initial assembly, the gantry is more likely than the bed.
Thank you for your explanation.
If i move the bed down in the rear corners wouldn't that make the mesh worse? As it is then even more lower then the front
Yes, read my last sentence again haha
You're not moving your bed down, you're moving your gantry down. In other words, you need to bring your gantry closer to the bed.
Hahahaha
Excuse me I have read it wrong
Just thought I would share something that helped me fix a slight sag in my gantry. I loosened all X axis linear rail screws accept for one on the left (no need to remove anything, print head, etc). While applying a slight UPWARD pressure on the middle of the gantry (maybe about 3x the weight of the print head; so not very much), I re-tightened the rail screws in order from left to right while using the two alignment pieces used for the original assembly process (one in the middle and one on the right; the left still has the tight screw).
After (0.088mm) and Before (0.142mm) heightmaps:
Great tip will try this later this week 😀