I recently designed a bunch of parts for my friend with his Bangarang 3". Initially I was just going to re-use my old Bangarang parts, but instead ended up designing new parts, which are better than my previous ones. These all mount on the rear standoffs. This includes the following:
1 - A Standalone SMA/RPSMA pigtail holder on a 45 degree angle, with a channel for your power lead. The channel includes small zip tie holes to secure the power lead, and keep it away from your props. This is the only non modular part of the set.
2 - The same part as above, but to be used with the rest of the parts.
3 - A Rx tray for most dual antenna Rx's, from the XM+ to the R-XSR and so on. This part will accept antenna tube with an OD between 3.3mm ~ 3.5mm. Smaller OD stuff will most likely need a drop of glue to secure. I have some 3.4mm stuff which friction fits in the prints I've done so far. Includes zip tie holes for small zip ties to secure the Rx to the tray, or you could use double sided tape.
4 - A Rx tray for ExpressLRS Rx's that include the T style antenna's. I have specifically used the Jumper Aion, but in theory anything with a similarly sized T joint antenna should be able to fit. There are zip tie holes for the antenna and the Rx.
5 - A tray that routes and holds the same style antenna as above, which also includes a notch for the power lead to route up through the VTx pigtail holder. Again, should fit any antenna that is similarly sized, but I have specifically been using the Jumper Aion ExpressLRS Rx's.
Print these in PLA, PETG, or TPU. The 2 of the Rx trays need to be printed with supports touching the bed. The ELRS antenna guide and holder should be printed upside down (as oriented in the object), no supports needed. The VTx pigtail holder, either version, should be printed upside down, with no supports. You will need to flip the model in your slicer.
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