How i can check flatness on H2D ?
I always have the nozzle how hit the support. I have try other possibility (Z-Hop, retraction, speed, temperature, flow…) without succes.
Flatness of what?
25252525
Your problem has nothing to do with the hardware.
How are you so sure? Deviations in Z-offset might very easily translate into echoing artifacts/ nozzle drag and ruin his supports. Since he claimed the nozzle HITS the supports, I assume he’s using tree supports.
You can check the flatness with a medium to high quality metalic ruler. Place it on the edge , and check different possitions on the bed. Put a light , like your phone with torch on, on the otherside, to make any possible gaps more visible. Try to keep the ruler vertical on its edge, and dont bend it cause you will create gaps that are not from the bed.
Big deviations can and will result in nozzle drag, if nothing else.
Right now im trying to narrow down on a weird spot which when testing with the full bed square, it prints normally, but on smaller prints it seems not squeeze enough. Its alrways that spot, about 50x50 a bit offset to the left and front, from center of bed.
Anyone has a visualization how the element is positioned under?
Probably not related, as the deviation seems big enough for instead of full fused first layer lines, I get… well… thinner lines that dont fuse…