Bit more experimenting today and you are correct the print will not start till the nozzle and the bed temperature have reached the operating point.philipy wrote: ↑Fri Sep 24, 2021 7:06 amI'm surprised your m/c programming allows the print to start before the temps stabilise - I'm no expert but I wonder if your G Code is a bit corrupted?GAP wrote: ↑Thu Sep 23, 2021 10:15 pm
My other big mistake was I started printing immediately instead of letting the bed and nozzle temperatures stabilise, applying a bit of patience instead jumping in boots and all and things just started to work.
I did notice that when the print started a line was laid down on the extreme edge of the bed before the nozzle moved to the centre, I am guessing that this is to get the filament ready to print.
With my m/c I press start and it does all sorts of moving to check/set the bed height and x & y zero's, etc, before the head moves to the front left corner for a couple of minutes and sits there with the filament slowly oozing as the nozzle temp increases, and at the same time the display shows the bed temp also increasing. Only when both are within operating limits does the head move back to the bed and then it first lays down a long line the full length and half a return length of the front edge of the bed before moving over to start actually printing.
Another bit of trial and error resulted in me learning about how the Z axis offset worked (I think) the pictures below show the same file printed with the offset at 0.1, 0.13 and 0.00, I am surmising that a positive number moves the nozzle closer to the print so conversely a negative number will move it away.
The line down the side of the bed I think is a default before a print to ensure the nozzle is extruding correctly and bed adhesion is OK.
offset 0.1 offset 0.13 offset 0.00 Overall I am fairly please with how this is coming along, except for the fact the Creality Slicer that came with the printer will not open on my newer (hobby) laptop but will on my old one (used as a desk top), bit of a pain having to go back to the house every time I want to slice something that I have downloaded in the shed.
Cura on which the Creality one is based will not work as well I really like the Creality one as it so simple to use, maybe I will have to look at others in the future.