Watering can spout - fully parametric

Basic and easily printable and customizable watering can spout - exported with the parameters on the picture to STL and STP.  It is expected the model should behave well in some range around the present setting.

To ensure the spout fits your watering can:

• measure diameters of your watering can outlet (it usually is a bit conical - the smaller one at the end of the outlet) 
• edit “pp_spout_min/max_dia” parameters accordingly
• Set the main diameter of the “showering” head to fit your watering can size
• Set diameters of individual nozzles according to your preferences 

(I believe the names of the parameters are half-self-explanatory)

Any more advanced tuning can be easily done at the first sketch - the rest of the sketches is derived from the first one and the parameters.

The pitch circles of the nozzles are derived from the head diameter, but numbers of holes aren't - you need to do a bit more digging if to change those.

All the tunig is preferable done with the history slider a bit back (see the picture) - the number of holes and their chamfers make it a bit computational expensive otherwise.