Hey everyone, hoping the community can help me solve a friction-fit problem.
I 3D printed a PS5 DualSense controller cover and the shape is great, but I have a retention issue: when I grip the controller normally during gameplay — especially when I squeeze a bit harder from the bottom — the controller slowly works its way out of the cover. Video attached showing exactly what happens.
I've already modified the STL to remove the button panels (the parts that covered the D-pad and action buttons) because I wanted unobstructed access to the buttons. So right now the cover is basically the two grip wings + a bottom bridge connecting them across the front. I'm guessing this might be making the retention problem worse since there's less material wrapping around the controller now.
**Print specs:**
- Material: PLA
- Layer height: 0.15 mm
- Wall thickness: 1.20 mm
- Infill: 15%
- Overall dimensions: 162 × 59 × 102 mm
**What I'm looking for:**
Any ideas for clips, snap-fits, retention lips, or things I could add (or modifications I could make) to keep the controller secure. Open to:
- STL modifications (adding clips or snap features)
- TPU/rubber inserts glued inside
- Strap or band solutions
- Switching materials (PETG instead of PLA?)
- Anything else you've tried
Not Adhesive stuff
**The constraint:** Whatever I add can't interfere with my fingers or the controller's buttons, sticks, and triggers during gameplay. The grip needs to stay comfortable.