Initial Layer Horizontal Expansion works exactly as GregValiant says, it just makes the first layer smaller when using a negative value. I also use it in every print to get rid of the elephant foot. I use -0.3
- 3 months later...
On 9/15/2020 at 12:13 AM, radyeus said:So I have been experimenting with the new Initial Layer Horizontal Expansion to get rid of my small Elephants foot issue. I printed the 20mm calibration cube with (-0.5mm, -1.0mm and -2.0mm) settings and all three cubes came out identical still with the foot. The width at the foot is 20.65mm and 19.85mm for the rest of the walls.
Have I misunderstood the settings?
PS. double checked and Horizontal Expansion is at 0mm.
Cura 4.7.1
Ender 3 Pro
Glass bed
Hi @radyeus
I'm finding exactly the same thing, same printer, except with Cura 4.8.
When I make "Initial Layer Horizontal Expansion" positive, I see the results in Preview.
But making it negative, even -2mm, nothing happens with Preview, and the actual print still has elephants foot.
Edited by 877Just now I tried -2mm for ILHE and it worked fine.
Can you show a screenshot please? Sometimes if the part is only touching the bottom layer a little, setting ILHE to -2 can totally remove the bottom layer which then moves the part down a layer and it may look the same as before but the bottom layer isn't printing at all now.
Even better do "file" "save..." and that will create a project file with your STL in it and positioned/scaled how you did and with your printer's machine settings and your settings. All in one file so I can test it out myself. Post the resultant file here.
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GregValiant 1,455
In the Cura preview you should be able to see that the first layer is smaller than the second layer (especially with it set to -1).
I haven't had any problem getting it to work (same printer as yours). I keep it at -.25. If there is another setting that could interfere with Initial Layer Horizontal Expansion I'm not aware of it (but there are a lot of things about Cura I'm not aware of).
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