#0165 STRONG Double "D" Carabiners [2 Variants]

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Extending the use of my Rugged “D” Carabiner to be a rigidly coupled double carabiner.

Easy to clip onto your pant's belt loops, backpack, or anything else to take on your adventures.

Features:

1. Quick easy print with no supports.
2. Strong enough for everyday usage.
3. Two versions provided - take your pick!
4. Clips onto your backpack or any other gear.
5. Combine with any of my BX Loops collection to create a solution for your needs.

Tips: 

1. Print in PETG/ABS/ASA for more flexibility.  PLA is not recommended. 
2. Some minor welding is common at the snap area.  Just bend it back and forth in the Z direction and it will separate.
3. Print with 2 walls and 25% infill, 0.2mm layer is fine.  Recommend top and bottom layers to be at least 4 each. Given the print orientation, top and bottom layers have a big effect on stiffness. If you want a stronger part, go with 5 layers each - but beware that it may be stiffer than you'd like.  If you use any more layers, it may become too stiff for you to open it easily anymore.
4. If you scale the part up in size, you can experiment with more wall thickness and more top and bottom layers.
5. Try to place the seam away from the snap geometry area (use the .3mf file provided) like by the outside of the bottom knuckle instead - seams can collect excess filament in areas with small print movements that could cause welding at the snap area.

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