# \#cad
**URL:** https://discuss.bluerobotics.com/tag/cad/71.md
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## [Battery enclosure opener](https://discuss.bluerobotics.com/t/battery-enclosure-opener/22281)
**Author:** [@coanderson](https://discuss.bluerobotics.com/u/coanderson)\
**Replies:** 3\
**Last updated:** [January 15, 2026, 5:39pm UTC](https://discuss.bluerobotics.com/t/battery-enclosure-opener/22281 "2026-01-15T17:39:17Z")
I always have such a hard time opening the battery enclosure I have on my bluerov. I quickly cad-ed up this opener that has served me well. I printed it with PLA, more than average infill if I remember correctly. If you …
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## [Fathom spool slipring and flange](https://discuss.bluerobotics.com/t/fathom-spool-slipring-and-flange/14342)
**Author:** [@axa.molina-ramirez](https://discuss.bluerobotics.com/u/axa.molina-ramirez)\
**Replies:** 1\
**Last updated:** [May 19, 2023, 1:47pm UTC](https://discuss.bluerobotics.com/t/fathom-spool-slipring-and-flange/14342 "2023-05-19T13:47:39Z")
HI, We are designing and spool for a 1000m of tether (ethernet yellow neutrally buoyant). We have the specifications for the binder connector slipring, but not for the internal metallic part that is connected to the tet…
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## [3D cad models (.step?) for locking enclosures](https://discuss.bluerobotics.com/t/3d-cad-models-step-for-locking-enclosures/12366)
**Author:** [@tony-white](https://discuss.bluerobotics.com/u/tony-white)\
**Replies:** 1\
**Last updated:** [June 21, 2022, 5:03am UTC](https://discuss.bluerobotics.com/t/3d-cad-models-step-for-locking-enclosures/12366 "2022-06-21T05:03:20Z")
Hi @EliotBR and all! Rather than ask privately, I thought I’d see if you guys could share .step models for your new line of enclosures. I’m specifically after the AL 4" x 200mm, but I’m sure others may want different si…