Side Mount for the bands of a Headlamp and Goggles for the Dräger HPS 4500 Helmet

The Dräger HPS 4500 has little knobs on each side that can hold the visor for that helmet. However some departments only hand out goggles. The little knobs can hold the one band of the googles well enough that it won't slide up and off the helmet all the time (though it still happens sometimes..). But what if you want to have a headlamp, too? 
The little knob can't hold two bands, so i designed this little holder that can hold both bands. 

The band of the headlamp is doubled in the front and is held on both sides by brackets in front of the knob, while the band of the googles are held by brackets on top of the construction. This way, both bands are secure and won't come off at all (except if you actively remove them from the brackets). 

What you need to know for printing: 

The main part needs to be printed diagonally to ensure strength and have the part that goes around the nob more precise. This will take quite some support material, but as the part is not that big it should be okay. 
Please take a look at the sliced version i uploaded, even if you don't have a Core One, and look at how the supports are placed. The two little bits the whole thing stands on are to be broken off, too. 
The smaller part probably can be printed laying down, but it's probably better to have it rotated, too. Mine was printed in a 45 degree angle as well. 
For strength have 5 perimeters, so both brackets are solid. The Infill percentage and type in the main body won't matter that much with such a thick shell. 
I printed it in ASA, but ABS or PETG should be fine too (or even tougher filaments, but don't use hard and brittle ones. The main thing you want to look at is impact resistance, not tensile strength) 

For the assembly you'll need two M3x18 screws. Slide both parts on the little knobs (they should already hold quite well as it's a tight fit) then screw both screws in the two holes, directly into the plastic. Turn them until they are fully embedded (though be careful at the end, as you can damage the thread you just created).
And that's it. 

This is a very niche problem but i've spend a lot of time perfecting that model. 
So if, by all odds, you have the same problem, here you go.