Hope someone might have a view on where to go with this. My prints were coming out pretty good, but since installing a BL Touch to the printer I've been unable to get consistent first layer adhesion.
- Printer: Tevo Tarantula
- Firmware: Jim Brown Marlin
- Speed: initial layer 30 mm/s others 60 mm/s
- Layer height: tried everything from 0.1 to 0.3 mm
- Nozzle temperature: 204 °C (stock hot end and nozzle)
- Bed temperature: 60 °C
Printing Sunlu PLA+ filament onto Printbrite on the stock bed using bilinear Leveling (tried both 3 points and 5)
Z homes with the probe in the centre of the bed and the G29 command takes the readings ok.
I've configured Z offset so that you can barely move a sheet of paper between the bed and nozzle when you send G1 Z0. But it still looks like the nozzle is too far away from the bed when printing first layer.
I've managed to get a 20 mm calibration cube out of it, but that is inconsistent (the two cubes in the pictures were printed one after the other with no changes).
Anything bigger than that doesn't stick at the corners and ends up as a ball of spaghetti.