Adjustable Nalgene Carabiner Loop

Description

Adds a carabiner loop to the bottle for those who don't use the standard strap point on their Nalgene or similar bottle. For example, if you use the capCAP+.

This just goes onto the standard strap point and gives you a hole to use for a carabiner or sling.

Adjustment

I have added a load of example sizes and configurations, but if there isn't one you like, either let me know and I can generate it or use the included FreeCAD document to edit the size. To edit the hole size just open the document. On the left, go to Pad001, then double-click on Sketch001. From there, just adjust the diameter of the hole (which should be 20 mm by default). 

If you want to change how many loops there are, just open the PolarPattern and from there, you can change the occurrences or the angle. Hit okay and it should generate.

Whatever you do, the fillet might break as FreeCAD can be a bit dodgey, so you just need to double-click on the fillet and in the top left hit select, deselect the incorrect edge, and choose the correct one.

After thats been sorted, just click anywhere on the model, then File > Export. I recommend a STEP file with the top tick box ticked about curves to get a smooth circle.