No bueno
Hi, I've had my VC 3.1 300 for a couple of years now and it's had some pretty crap meshes since I've built it at about 0.35mm variation. I've built the printer with badly printed parts so I just thought it was the cause and since it printed very well I just left it that way.
I've recently come back after a one year break from printing and I've decided to rebuild the printer with solid PETG-CF parts. I've just rebuilt the entire Z axis and now it's even worse at about 0.5mm variation. What do you guys think is the issue here? I'm suspecting a twisted gantry, could that be the answer?
I'm adding two pictures, the first one is a mesh before the rebuild and the second one is after the rebuild. I'll be very thankful for any help....
What to do next ?
Hi, I need help with my 3.2H mesh. Currently I have recalibrate the mechanical part. But I don't know what to do next. Maybe a gentle tap on Right Front (B position) ??
Printer Specs: 3.2H, 400x400m
Wish achievement: 0.1 or Lower...
Need help with my RatRig VC 3.1 500 - Bedmesh and Gantry Twist
Hey everyone,
I'm having some issues with my RatRig VC 3.1 500: My bed mesh is really bad, and the first layers are very uneven. When I measure the gantry twist, I get very high values, but I can't interpret them correctly and don't know what I need to fix.
Has anyone had similar issues or have any idea what I should adjust? Any tips would be greatly appreciated!
...
Wierd pattern only at the mesh while print start
Hello i have this weird Zigzag pattern when the printer does the mesh. But it is only at the gcode start print, so after preheating.
If I manually preheat the printer and do the mesh then it looks normal like you see in the picture.
(Same temp and hotend temp used for preheat) ...
VCORE 3.1 300mm weird angle on Y axis
Hi! I've been busy for quite some time and my VCore 3.1 has been collecting dust during this period. I changed the toolhead from EVA 3 to RR Toolhead 1.0 in january, but from that time until now I haven't been able to test the printer thoroughly.
I'm seeing that all of my first layers have lots of inconsistencies, where I can see the layer either perfectly flat or super wonky and with lots of issues as the toolhead moves over the bed. I was currently rechecking the comissioning guide and I saw that my bed is anything but flat.
Before doing anything with the frame I want some advice on what can I check first so I reduce the possibility of making things worse. Seeing the mesh I seems that my Y axis is bowed closer to to the front part of the machine, but obviously I don't see anything strange by looking the printer....
VCORE 3 500mm Front bent ! Any explanation ?
It's all in the title and picture : the front part of the bed seems very curved, and I don't know why. I've tried several solutions, but without success. Do you have any idea what might be causing this curvature (is it the bed or the frame)? And How to fix it?
Thank you in advance for your help....
Bimetallic effect on gantry?
I’ve tested the height map at different temperatures:
Chamber 21°C - Bed 21°C
Chamber 60°C - Bed 115°C
Chamber 51°C - Bed 105°C
Chamber 40°C - Bed 60°C...
Sudden problems and super slanted mesh on VCore 3.1 400
I went to print something today (it's been maybe a week or two since I printed last?) and hit a problem. Before printing, it went through the normal homing step, then went to do the bed mesh. When it got to the front right side of the bed (so, not too far into the mesh measurement, kind of by the front right z-screw) it drove my hotend into the bed (there was grinding noises and the hotend flexed a bit until it let off), then it canceled the print and gave me an error. I thought this was weird,...
bed mesh running at START_PRINT has significant offset applied
I recently started having some very poor quality prints. I noticed the skirt loops on the print were very compressed down into the bed. I figured it was bad filament, maybe needed drying or something, so I stuck it in for a drying cycle. WHen it came out it was still happening and then started occuring when using the sceond toolhead. In looking at the bedmesh that is created from the START_PRINTmacro I see that there is a significant offset that appears to be applied. In order to fix I heated...
Bed mesh compensation not working at all
I have tried just about every possible way to get the bed mesh compensation to work so i can get a decent first layer and nothing helps. My bed mesh is .125 repeatable at 105c bed 55c chamber and 150c hot end. I have the light weight x bar. The thermal coefficient is positive even at the correct layer height.
I have been trying anything possible for 2 weeks... And i have multiple prints that i have to have done before i leave the state for multiple weeks and i cant get it to print the first layer for anything
If anyone has any insight on how to fix the first layer issue would be very much appreciated...
3.2h Mesh high in all corners
I recently upgraded my printer from VCore 3.1 to the new 3.2h, and i am using Beacon instead of SuperPinda. I already have the magnet and heater attached to the bed, but this is the bed mesh i am getting.
Seems like it’s high in the corners, I’m thinking i should shim both y rails towards each end. Will that help flatten the mesh? Or is this a small enough discrepancy that I shouldn’t worry about fixing it?...
Strange Peaks in Mesh
I just got back home from a vacation and now my bed meshes are looking strange not sure what happened but there are now 'peaks' in the mesh that when trying to print are causing the nozzle to be to high off the bed.
Solution:
Figured out some parts I printed with embedded magnets caused this issue, currently working on demagnetizing the bed
bedmesh not applying at all for first layer?
My company bought the idex vcore 4 500 to prototype large parts, but suddenly it does not want to use the mesh when doing first layers.
it probes before ach print but no matter if i do small or large prints that spann the entire bed. when i did a 400x400 1 layer test i had to turn flowrate down to 80%, it unmderextruded where my blue sides are on the bed and overextruded in the middle. were having huge problems with general bad extrusion as well..
Any insight would be extremely valueable. its all stock ratrig, using newest prusaslicer profiles for 0.6mm. The printed worked fine in the beginning but now almost all aspects of quality seem to degrade....
Help with initial mesh setup
hey folks
i´m building a vcore 4 500 with idex. tried to tab down the back corners which helped a little. the warping along x axis did not dissapear. saved the config, homed the machine and did a z-tilt routine. after that the mesh scan looks like in the beginning.
i have a machine with a back plate mounted already. should i unbolt that to get to the screws on the back of the frame? however, there is a middle post holding the whole back secion up. in order to lower the frame it would be necessary to cut this one shorter....
Strange Looking Mesh (brand new V-Core 4 400 build)
Does anyone know what could be causing this strange "S" curve in my mesh? I have tried adjusting the screws at the back corners of my frame, and I have closed the gap a bit, but the entire mesh seems to be maintaining this shape and moving upwards into the red direction at this point.
Trying to sort out taco bed on 400mm VC4
I am trying to figure out where to start on this one. First I thought it might be an Y axis issue but honestly I am getting a bit stumped.
Using a Ti gantry...
Solution:
I went ahead and shimmed the y rails as in the end it was them or the y gantry dipping downwards.
VC4 beginners mesh
Hello, I’ve just got a new V-Core. I did a mesh and got this result — I need to raise the back left corner. I tried loosening the screws as shown in the photo and lifting it, but it doesn’t work. The mesh still looks the same. Are these the correct screws? Thanks for the advice.
Solution:
What i found useful was using a straight edge and make a mark with a pencil across the gantry and corner post so i could "see" how much i adjusted it. Remove the enclosure side completely then make that mark, loosen the screws and lower that corner slightly. If nothing is changing you aren't moving it
VC3.1 heightmap inverted?
Whenever I look at my height map and the print itself, it seems like the height map is inverted.. (or atleast the Z axis is). In this example, the heightmap shows the highest point at the left side [175.6, 304.9] and the lowest on the right. But when I'm printing it seems that the lowest spot is on the left and the highest on the right. Is there any way to fix this or am I just misinterpreting it all?
