Filament guide for PETPull-2

**Update 24.09.2021**
This design operate properly only up to ~20m filament length as reported by community. This is enough for bottles up to 9 litters but not suitable for 30 litters kegs.

**Update 18.09.2021**
New version of base Spindle_bas_V2 with wide mount wholes to adjust position at mount time.

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#### Description:
This is filament guide for [PetPull-2](https://www.thingiverse.com/thing:4900782)
The design inspired by Artur(@sangalt) idea one from [PETPull(Official Group)](https://t.me/PETPullGroup)

#### Additional materials:

* 6 mm smooth steel rod (60 mm) x1
* M6 DIN125 washer x2
* 4.2x16 DIN968 nail screw to mount x2

#### Assembly:
* Clean roller whole by 6 mm drill bit until it will rotate on rod without force
* Add some grease to rod and washers
* Add washer on rod at each side of roller
* Mount base inside PetPull-2 machine reducer as close as possible to front (where filament in) and to side opposite to gears (see photos). But you can ex