If not you end up with droopy overhangs or worse. Increasing flow to fix a fundamental underlying problem is like hitting things with a hammer. For bridge structures it’s important to get the flow just right. After that its increasing the first layer extrusion width. You would normally adjust your bed levelling first, then use a slicker thicker first layer height is you have problems with an uneven print surface. Alter for whatever values you want.Īlso if you are doing this to improve layer adhesion on the first layer its not really the right solution. Which is why you need to add BOTH lines from that postĪs the first one will set the flow for the first layer to 105 and the second will set it to 100 on the second layer. Same tab but different sections.Īlso you cant just add that line in as it will set the flow to 105% and then it will stay at that value. The example thread you took the lines from is using them in the custom layer change gcode sections. That is because you cant use it in the START gcode field. If it is a prusa though then sort that out before messing around with flow and multipliers and all the other crutches. However that advice while always applicable to a prusa printer might not necessarily be applicable to another depending on the print bed in use. Then use elephants foot compensation to remove the first layer spread. You can do the same but set a higher value first the first entry.ĭon't know what printer you have but the usual advice on adhesion is - clean bed, get the z height right so the first layer is properly squished and then it doesn't come loose. They ended up using this in their start gcodeĪs they wanted a lower extrusion on the first layer and it reset back to the value set in the filament settings on layer 1. Just a few days ago in this very forum someone was trying to do something very similar In the start gcode of your printer profile is best. Thats a pain and you would have to do it for every model though so I wouldn't recommend that method. You could slice and use the layer slider to insert custom gcode at whatever layer you want. There are a couple of ways that spring to mind but adding a couple of lines to your printers start gcode is the simplest and least effort solution.
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