Print bed frame wont align with heatbed standoffs
Has anyone else had problems mounting the heatbed onto the frame?
Specifically, I can either mount the 4 points at the ends of the arms, or the 2 center points where the y-axis is attached to the frame.
In the build process, the two center mounts come after the y-axis is mounted so it is difficult to see how much out of alignment the standoffs were.
My recourse was to drill out the 4 corner holes so there was enough room to seat the screws. I figured that would be okay since the y-axis mounts should align the print bed pretty as far as that goes and the offsets on the arms still provide the same level and support function.
Unfortunately, for my first prints, I'm able to lay down a decent pattern via the V2 configuration gcode, but when I try to put down a decent layer like for the batman symbol, I get curl in the skirt or the model will dislodge on the second layer. I can't tell if the nozzle or probe might be catching, but my calibrations all pass.
Browsing for issues about layer adhesion, I see that some people have reported that their print bed is out of true and had to have it replaced. Could something like that cause those alignment problems? As I mentioned, I can't get any sense of depth to see how those y-axis mounts weren't aligning, but I didn't consider that the print bed might be warped. Well, I did, but I thought that was handled by the auto-calibration process.
I will have to wait until I get home to check the print bed with a straight edge, but I was interested in seeing if there was anyone else who ran into this issue?
Re: Print bed frame wont align with heatbed standoffs
Are you talking about the heat bed to the aluminum frame? There is a white dot on the frame that is supposed to orient a certain direction. I think towards the heatbed wiring.
Re: Print bed frame wont align with heatbed standoffs
We had the same problem and we just cut off the first protective layer on the print bed above the four outer screws, which hold the standoffs. Then we first screwd in the two screws in the middle and afterwards the four on the outside. The standoffs are slightly angled but the auto-calibation run perfectly. Its seems to be a "solution" to this problem.
Hope this helps you
Re: Print bed frame wont align with heatbed standoffs
The diagrams for the bed install with the white dot were incredibly misleading and I assembled my frame upside down. There's a picture where it denotes where the white dot should be, but in the picture THERE IS NO WHITE DOT, so it seems like they are pointing at the underside of the carriage. They're not, it's pointed at the top-side. Now I'm totally shocked by this next part as well, but the y axis carriage bolts are literally not centered by about 1 mm, enough that you think that you did something else wrong because it's so close to being in alignment. Not true, they really are just slightly off center so that it matters which side is up. I have no idea why they couldn't have designed around this so that this brace could be either way up. That's the only part of the brace that makes a difference in orientation.
You just have to flip the mount over (keeping the 2 bearings on the same side) and it will work perfectly and line up.