Angle grinder blower, Ferrex

This is a remix of joopjoop's great air blower - https://www.thingiverse.com/thing:3909678
The guard doesn't come off easily on my Ferrex 40V angle grinder (model no. FBT-CAG002) and I wanted to be able to mount/remove the blower onto/off the tool quickly without using screws or bolts so I made the following changes:
- Designed the case to fit around the guard and lock onto it.
- Design the parts of the casing and nozzle so they slot together.
- Design a slot on nozzle, so that different outlet sizes and or shapes can be easily designed and printed later.
- I designed a spanner extension so that you can tighten the impeller into place without having to use the original tool spanner at an unusual angle and risk damaging the impeller (I knocked the impeller on a couple of occasions when tightening).

It may fit other makes/models of angle grinder but you will need to check.

I wanted a blower to blow away the saw dust off my wood working tools and this is more than capable of t