New i3V owner: A few beginner questions

[DanSilov]

Here's the comparison of the original extruder bottom layer to my results.

Original guidler vs the one I printed (first layer and full part):
IMG_8256.jpgIMG_8261.jpgIMG_8262.jpg

Notice that original part has only 2 thin perimeters, which leaves enough space between perimeter and the hole to add some "cross-stitching". I've tried setting prints to 2 perimeters instead of default 3, result is the same, there's never enough space between hole and perimeter to add extra material. This is even more apparent in the next example.

Close-up of the main extruder part:
IMG_8257.jpgIMG_8258.jpg

Again, original part has 2 very thin perimeters, which allows for 2 perimeters for both hole and overall print. In my case perimeters can't even close properly.