In order to avoid furrows, you should press the detail out from that site, where pattern of lines is fatter, We recommend to check gears on the absence of burrs on the enticles. If you cannot connect some details, to put a cap, for example, lubricate it with wax of any ordinary candles.

Yes, you can paint it. We recommend to use watercolor, gouache or mordant. You can use acrylic paints, but a thick layer can interfere with gears working.

There are wooden axis (standard toothpick 65 * 2 mm) in each set. Depending on the specific model, there are can be clerical gum, fishing line, stickers. What it is not given in the set but may be necessary during the work: office knife, ordinary candle, emery.

The plug or the axle will be much easier to install if you grease the parts with an ordinary candle. If you can’t install the axle, it is recommended to disassemble the construction and grease the internal parts of a gear with a candle wax.

We definitely can say that a child of 14 years old can assemble our models. Sometimes he will need parents’ help. Our mission – is to unite children and their parents.