after shiming right rail no Differenc
Hi,
I Was trying to get by bed better. So i try to shim the right rail.
I put shimtape between the rail and the profile. Maximum was 0.4 on the right back corner. So normaly i would say that must lift up the rear right corner in the mesh. But it doesnt happen. If i compare it with the normal one.(Without shim) it looks better i think. But the Differenc arr so small. Can anyone explain it?
Generaly i interested to know if this mesh ist bad or good for a 300?
I use a BlTouch.
Thanks!
8 Replies
I think that your frame might not be fully square. That can cause the kinds of issues that you see in your mesh. Did you check out https://m.youtube.com/watch?v=h7ZTq2dDTkM ?
3D Printers & a Whiteboard
YouTube
RatRig V-Core 3: How to Get a Square Frame
This video is for those who struggle getting bed meshed with their RatRig V-Core 3.
Please feel free to jump to the chapter you are interested in.
0:00 Intro
1:05 about the v-core 3 frame and bed leveling
8:26 what to take care of in the building phase
9:17 the right square
10:09 build tips
16:50 adjusting the frame according to your bed mesh
...
Thanks. I know that Video. And i want to sqare it as explained in the Video without loosing the frame. Because adjusting the enclosure frame is more „stessfull“ i decided to go with the shim Solution. But i was wondered why the 0.4 abjustemt in the right direction effects nothing in the bedmesh. So i pushed the rear right corner 0.4mm down (frame corner) but the rear right corner was again 0.4mm away from idle.
Due to the kinematic bed and using Z-tilt, you actually see a different change in the resulting mesh. You can see that the back left corner actually went down between the meshes.
However, you can also spot what the inserted shim did. Along the Y axis on the right side, you see that the mesh now curls upwards slightly in the back right. So the problem isn't fully fixed.
I would recommend removing the shim and moving the front right upwards slightly. If that doesn't fully fix it, you can consider moving the front left down slightly as well.
That definitely is a bit more painful on an enclosed V-Core, but still quite doable. I did a similar thing on my enclosed V-Core. Something that helped a lot there was doing the adjustments without the panels on the enclosure, and putting the panels back after getting a good mesh.
Ok thanks i will try it!
That is the best i can get. Is it ok?
That is getting a bit better, though if possible I would try to improve it still. Ideally you have less than 0.2mm of range.
Did you have to move the extrusions a lot for it? Small movements should already help a lot.
I also see a strange "plateau" in the front, could it maybe be that your toolhead carriage isn't fully tight on the rails, so it might tilt a bit depending on the pressure from the wire loom / PTFE tube?
Another hint btw, move the "Scale z-max" slider all the way to the right, to have the same perspective when comparing results.
This is how it looks like on 110 degress.
I dont measure it excatly but i would say i moove it around 0.5 mm up. The front right.
I check the tightness of the toolhead later. And also check the wireloom.
I check the tightness of the toolhead later. And also check the wireloom.