First impressions and actions with Da Vinci 1.0A (+ bonus)

Shortly...

A little disaster the condition of the printer when arrived (from Amazon Spain). The overall packaging was very good and no doubt about this item was brand new, but when the unboxing was completed (a lot of protecting pieces to remove)...

-The two Y belts were loose
-The real X axe (its rods) wasn't the right theorical one (it wasn't perpendicular to Y rods nor to lines you can see in the heated bed).
-The door doesn't close well, it is misaligned with respect its sourrounding parts.
-The two lateral bolts that serve as hinge in the upper door/cover were broken. (Honestly I have some doubt about this since the first time I opened it, the cover ended in the floor because the sudden liberation. So I'm not sure if the fall was because the bolts were previously broken or I broke them when the abrupt opening).
-I think that the little metallic plates to clean the nozzle in the pan of the parking position of the head are misaligned too (is the most little plate, the one which faces the front/rear of the printer, for cleaning the sensor bolt near the nozzle or for cleaning just the nozzle?).
-Calibration out of range.

So it was time to unmount the lateral panels and work with screws and belts.

Turn to install the stock cartridge (white XYZ ABS) and mount the filament into the extruder.

Then calibration, both auto and manual (a single method for this in this forum), and finally the first printings from the built-in options.

First printing and first fright: the XYZ keychain materialized over the platform... was horrible (voids and gaps where a good infill was supossed to be).

Second printing using a manual calibration distance between the bed and the hot end of aprox. 0.18mm: the fright was confirmed... this keychain was my second 3d plastic son but at the same as my first one, this son was like a Frankenstein.

Time to change something... maybe the distance of calibration, but someone warned me that the built-in demos aren't good to make any test, so a change of strategy was needed.

I installed the XYZ ware and drivers and designed a simple figure in Tinkercad, I send it to XYZ ware and finally to the printer (without any change over the previous calibration). The result was quite good in my opinion.

So that my initial worries are fading now.

I'm absolutely new at 3D printing and 3D design, maybe I bought the printer without the necessary critical reflection... but the junk is here and my third and fourth sons aren't monsters.

Too much to experiment now... another software, another filaments... The first, I suppose: to jump to Repetier.

Bonus: the picture of my non-monstruous sons (just the white ones, of course. The bigger is 2.5cm -aprox. 1"- high, and the smaller is 2.0 cm high).