Wider extrusino on first layer
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wesc
- Posts: 8
- Joined: 20 Mar 2018, 15:39
Wider extrusino on first layer
An option to specify the width of the first layer (as a % of normal width). This is in Slic3r PE and Cura. It helps greatly with first layer adhesion and reduces print failures.
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pjr
- Posts: 704
- Joined: 05 May 2015, 10:27
- Location: Kamnik, Slovenia
Re: Wider extrusino on first layer
To be quite honest, I have never found a need for this.
When you have Live Z and bed temp set correctly, the part just sticks. Probably because of the lower first layer speed.
Also when you start playing about with extrusion widths on some layers, the outcome may be lower adhesion due to less volume of extruded material.
When designing parts, I usually take extrusion width into account, so (for example) I make the walls 2mm wide. This allows for 5 x 0.4mm lines to be printed. If I set first layer extrusion to +20% (or most other values), I would most likely get gaps in the bottom of the wall with only 4 (or maybe 3) lines being printed.
Peter
When you have Live Z and bed temp set correctly, the part just sticks. Probably because of the lower first layer speed.
Also when you start playing about with extrusion widths on some layers, the outcome may be lower adhesion due to less volume of extruded material.
When designing parts, I usually take extrusion width into account, so (for example) I make the walls 2mm wide. This allows for 5 x 0.4mm lines to be printed. If I set first layer extrusion to +20% (or most other values), I would most likely get gaps in the bottom of the wall with only 4 (or maybe 3) lines being printed.
Peter