I Have a thumb nut on my Z-Axis end stop sensor mount.
This allows me to adjust the nozzle to within microns of the height needed for perfect adhesion and 1st layer print.
One of the hardest things that we learned during the 1st few days of owning a 3D Printer, is getting that first layer at the correct height.
It is also necessary to learn that when using a glass surface glue sticks make it much easier for filament adhesion.
My first prints were average in size and printed on the paper tape method. ("Blue Painters Tape") as this is the easiest to learn for beginners.
I first home the printer then lower the nozzle to it's lowest point, making sure a thin piece if paper will slide under the nozzle only when nozzle is raised to 0.2mm.
This is about the thickness of the paper and the first suggested layer height.
Having have a thumb screw on my Z-Axis sensor allows this adjustment to be made very quickly.
You can use use Z-Offset to change the Z Height using M851.
or
Marlin has access to the Z-Offset from the LCD allowing quick setting of the desired offset height.
The image below shows you my Whole bed is covered in 1 strip of Paper Tape.
[attachment 108632 TL-W3M.jpg]
Though in all fairness today I print on a many Bed surfaces...
[attachment 108633 Gutter.jpg]
Example "A change of bed surfaces from PEI Bed surface to ("image Below")
[attachment 108635 FloorTile.jpg]
Vinyl Floor Tile on the Bed surface the leftover piece cut from bed PEI installation on the floor tile. In just a couple minutes.
Why this strange test, to see how fast I could setup a temporary print surface for that special Print when the occasion arrives.
This allows me to adjust the nozzle to within microns of the height needed for perfect adhesion and 1st layer print.
One of the hardest things that we learned during the 1st few days of owning a 3D Printer, is getting that first layer at the correct height.
It is also necessary to learn that when using a glass surface glue sticks make it much easier for filament adhesion.
My first prints were average in size and printed on the paper tape method. ("Blue Painters Tape") as this is the easiest to learn for beginners.
I first home the printer then lower the nozzle to it's lowest point, making sure a thin piece if paper will slide under the nozzle only when nozzle is raised to 0.2mm.
This is about the thickness of the paper and the first suggested layer height.
Having have a thumb screw on my Z-Axis sensor allows this adjustment to be made very quickly.
You can use use Z-Offset to change the Z Height using M851.
or
Marlin has access to the Z-Offset from the LCD allowing quick setting of the desired offset height.
The image below shows you my Whole bed is covered in 1 strip of Paper Tape.
[attachment 108632 TL-W3M.jpg]
Though in all fairness today I print on a many Bed surfaces...
[attachment 108633 Gutter.jpg]
Example "A change of bed surfaces from PEI Bed surface to ("image Below")
[attachment 108635 FloorTile.jpg]
Vinyl Floor Tile on the Bed surface the leftover piece cut from bed PEI installation on the floor tile. In just a couple minutes.
Why this strange test, to see how fast I could setup a temporary print surface for that special Print when the occasion arrives.