Underwater connectors
3pin connector
Do not use Blender files for 3D printing. Use STLs download below instead.
To download this file you need builder's membership.
STL files
| Pict | Part name | Best mat | Qty | Notes |
|---|---|---|---|---|
 |
3pin_penetrator | PETG | 1 | This part differs from the 4-pin penetrator. Can be used only for making a 3-pin connector |
 |
Penet_nut | PETG | 1 | Same as 4-pin version |
 |
Penet_tip | PETG | 1 | Same as 4-pin version |
 |
Plug_grip | PETG | 1 | Same as 4-pin version |
 |
Plug_tip | PETG | 1 | Same as 4-pin version |
 |
Plug_cap | PETG | 1 | Same as 4-pin version |
To download this file you need builder's membership.
3 pin connector terminals
There are a bunch of similar terminals with different sizes out there. To best fit the printed parts, we need those with dimensions as close as possible to those pictured below.
Exact model: Female Pins and Male Pins (Housing is not needed)
Computer ATX IDE Power Connector Male Female Terminal
4 pin connector
Do not use Blender files for 3D printing. Use STLs download below instead.
To download this file you need builder's membership.
STL files
| Pict | Part name | Best mat | Qty | Notes |
|---|---|---|---|---|
|
4pin_penetrator | PETG | 1 | This part differs from the 3-pin penetrator. Can be used only for making a 4-pin connector |
 |
4pin_penet_inner | PETG | 1 | This part differs from the 3-pin version. Can be used only for making a 4-pin connector |
|
Penet_nut | PETG | 1 | Same as 3-pin version |
|
Penet_tip | PETG | 1 | Same as 3-pin version |
|
Plug_grip | PETG | 1 | Same as 3-pin version |
|
Plug_tip | PETG | 1 | Same as 3-pin version |
|
Plug_cap | PETG | 1 | Same as 3-pin version |
 |
4pin_plug_inner | PETG | 1 | This part differs from the 3-pin version. Can be used only for making a 4-pin connector |
To download this file you need builder's membership.
4 pin connector terminals
Exact model: male and female
Electric Plug Crimp Terminal DTM Pins. Tracked, affiliate link.
Penetrator blinders
STL files
| Pict | Part name | Best mat | Qty | Notes |
|---|---|---|---|---|
 |
Penet_blinder | PETG | 1 |
Plug blinders
Plug blinders are used when some connectors are not connected. They are as watertight as the connectors. They can also be used to protect penetrators from dust when not in use.
STL files
| Pict | Part name | Best mat | Qty | Notes |
|---|---|---|---|---|
 |
Plug_tip_blind | PETG | 1 | Same for 3- or 4-pin plug blinder |
 |
4pin_plug_inner_blind | PETG | 1 | |
|
Plug_grip | PETG | 1 | Same for 3- or 4-pin version |
Plug connector guard
Prevents the plug from getting wet or dusty (when disconnected from the craft).
| Pict | Part name | Best mat | Qty | Notes |
|---|---|---|---|---|
 |
Plug_guard | PETG | 1 | Same for 3- or 4-pin plug |
To download this file you need builder's membership.
Build help 3D files
These files are helpful for consistently producing connectors.
| Pict | Part name | Best mat | Qty | Notes |
|---|---|---|---|---|
 |
3pin_fixture | PETG | 1 | |
 |
4pin_fixture | PETG | 1 |
To download this file you need builder's membership.
O-ring for penetrator (female) connector
Exact model: OD16mm CS2mm or OD18mm CS3mm (inner diameter is always 12mm), 60-70 ShA (ShA no less, no more)
Sealing Rubber Ring Fluororubber Rubber Sealing Gasket. Tracked, affiliate link.
O-ring for male plug connector
Exact model: OD11mm CS2mm or OD13mm CS3mm (inner diameter is always 7mm) 60-70 ShA (ShA no less, no more)
Sealing Rubber Ring Fluororubber Rubber Sealing Gasket. Tracked, affiliate link.
Spade connector terminals
Exact model: 2.8mm male, 2.8mm female, isolator
2.8mm Cold Crimp Female Male Spade Connector. Tracked, affiliate link.
JST connectors with wire
Exact model:
- 2 PIN, XH 2.54 mm, 20-30cm, at least 10 sets, better take more
- 3 PIN, XH 2.54 mm, 20-30cm, at least 10 sets, better take more
- 4 PIN, XH 2.54 mm, 20-30cm, at least 10 sets, better take more
XH2.54 Wire Cable Terminal Wire JST Male Female Plug Socket. Tracked, affiliate link.
JST connector set
230pcs XH2.54 PH2.0 2p 3p 4p 5 pin 2.54mm 2.0mm Pitch Terminal Kit Housing Pin Header JST Connector Wire Connectors Adaptor. Tracked, affiliate link.
JST, connector terminal, spade crimping pliers
Exact model: SN-68B
Your life will be dramatically easier with these pliers. A must-have for every toolbox!
Crimps 2.8, 4.8, 6.3,Plug JST ,TE,XH,SM Molex Terminals Ratchet Crimper Pliers For 0.08-1.5mm²(28-16 AWG) Wires SN-68B Tool. Tracked, affiliate link.
Wires
For motors use high-amperage wires. Avoid using wires with silicone insulation (traditional drone motor wires) as silicone is not glueable by epoxy—usually resulting in connector leakage.