solved.

first layer not sticking to the bed

124 threads discussed this. Here is what worked. 85 ms

  1. Yes I had a somewhat similar clog once, and I could fix it back up. However, it is a lot of work.

    Marked as the answer · Is this hot end salvageable? · 3D Printing Stack Exchange, 2019 · 4 posts · answered on kolosy’s post, CC BY-SA 4.0

  2. (Love the question and here is my 2 cents). Firstly, you want to minimize supports. Even if you have dissolvable supports, you would still want to minimize the usage.

    Marked as the answer · How to decide print orientation? · 3D Printing Stack Exchange, 2019 · 5 posts · answered on Pᴀᴜʟsᴛᴇʀ2’s post, CC BY-SA 4.0

  3. Superglue - aka Cyanoacrylate can do the job quite well if given help. It depends on two flat and clean surfaces. If your printer has any lifting in corners, glue won't save you.

    Marked as the answer · What's the best way to connect pieces of a large print after printing? · 3D Printing Stack Exchange, 2025 · 5 posts · answered on Tal’s post, CC BY-SA 4.0

  4. You probably need to manually set the Z-probe offset in the Configuration. The CR-touch is mounted a little lower than the nozzle to prevent the nozzle from interfering when leveling.

    Reported as working · Filament not sticking to bed/nozzle too high · 3D Printing Stack Exchange, 2022 · 3 posts · answered on Dinglezak’s post, CC BY-SA 4.0