What should we do when First Layer temp and Temp don't match?

[garethky]

Prusa Slicer has 2 different printing temperatures:

• A first layer temp
• A temp for all other layers

For pressure advance tuning we would like to tune the temp thats going to print the bulk of the layers. However:

• First layer temp might be lower to discourage first layer adhesion, using a higher print temp can make the test pattern more difficult to remove
• The First layer temp might be higher to promote adhesion, if you don't use that higher temp the first layer might not stick and ruin the test pattern.

Maybe we could tell from the filament type which choice to make, there are not that many filament types to program for. A lookup table like this:

{
    petg: temperature,
    pla: temperature,
    abs: first_layer_temperature
}

But maybe this isn't possible. I don't know the print surface, surface prep and so on.

The other option is to default to the Temperature and give an option to switch temps in the UI. This only has to be shown if the two values are not the same.

[leon-matthews]

The other option is to default to the Temperature and give an option to switch temps in the UI.

This seems the best option to me, for reasons of transparency. Anybody who's using the tool knows which temperature they'll be printing the bulk of the model at.

[ronguest]

I am working on a problem filament that prints a great first layer and goes wrong starting at the 2nd. I wonder if it is the temperature change. So it might be nice to be able to select which temp to use in this test.