Dry Compartment Sealing

Version 2.0 | Last update: 07. 04. 2020

Printing

For successful assembly of this section you need print out these parts:

Sl1

Amethyst AUV Docs - Sealing V2 - Sl1

CRITICAL PART - PET-G filament recommended
Before start check this article: 3D printing of water proof objects for underwater applications

Can be printed without supports and brim.  

Copies to be printed for one section: 2
Print time: 3h 17m*

Part version: V2.4
STL File name: A1_Sl1_2x_v2_4.stl


Sl2

Amethyst AUV Docs - Sealing V2 - Sl2

CRITICAL PART - PET-G filament recommended
Before start check this article: 3D printing of water proof objects for underwater applications

Can be printed without supports and brim.

Copies to be printed for one section: 1
Print time: 2h 40m*

Part version: V2.3
STL File name: A1_Sl2_1x_v2_3.stl


Sl3 - Penetrator's nut

Amethyst AUV Docs - Sealing V2 - Sl3

Non-critical part. Do not apply water tight printing techniques on this. Part shoud be prined with standard settings so that the thread has the necessary space.

Beacause part has thread, use best possible 3d print qality/detail settings. 

Can be printed without supports and brim.

Copies to be printed for one section: 16
Print time: 8m*

Part version: V1.0
STL File name: A1_Sl3_16_v1_0.stl


Sl4 - Blinder

Amethyst AUV Docs - Sealing V2 - Sl4

CRITICAL PART - PET-G filament recommended
Before start check this article: 3D printing of water proof objects for underwater applications
Beacause part has thread, use best possible 3d print qality/detail settings.

Can be printed without supports and brim.

Copies to be printed for one section: Depends on setup
Print time: 15m*

Part version: V1.0
STL File name: A1_Sl4_xx_v1_0.stl


Sl5 - Penetrator for 4mm wire

Amethyst AUV Docs - Sealing V2 - Sl5

CRITICAL PART - PET-G filament recommended
Before start check this article: 3D printing of water proof objects for underwater applications
Beacause part has thread, use best possible 3d print qality/detail settings.

Can be printed without supports and brim.

Copies to be printed for one section: Depends on setup
Print time: 22m*

Part version: V1.0
STL File name: A1_Sl5_xx_4mm_v1_0.stl


Sl6 - Penetrator for 6 mm wire

Amethyst AUV Docs - Sealing V2 - Sl6

CRITICAL PART - PET-G filament recommended
Before start check this article: 3D printing of water proof objects for underwater applications
Beacause part has thread, use best possible 3d print qality/detail settings.

Can be printed without supports and brim.

Copies to be printed for one section: Depends on setup
Print time: 20m*

Part version: V1.0
STL File name: A1_Sl6_xx_6mm_v1_0.stl


* Times were measured with settings of 0.20 layer height, 40% infil, for PLA filament. Sliced with Slic3r for MK3 Prusa printer. Note, that this is not print settings recomendation. Read this

 

Assembly

Chose number and sizes of your penetrators and blinders. It means how many wires you will need to come out of dry compartment and what thickness of wires you will use. Penetrators are available with hole diameter of 4 mm and 6 mm. Rest of additional holes we will provide with blanking plugs : blinders.

Assembled penetrators consists of plug, o-ring and nut.

Amethyst AUV Docs - Penetrators

Same with blinders - plug, o-ring, nut.

Amethyst AUV Docs - Blinder

 Inner diameter of o-ring is 12 mm. Thickness 2 mm = 12x2

Amethyst AUV Docs - 12x2 O-Ring

In case you can't find o-ring provider, you can improvise with party balloons. Cut the end and give him the new life of something more useful : the o-ring.

Amethyst AUV Docs - O-ring 12x2 alternative

This is how they look mounted on sealing cap.

Amethyst AUV Docs - Penetrators mount

There is no need to force the plug be tight too much. It should be tied securely and also gently. Note the space between plug and sealing cap.

Amethyst AUV Docs - Penetrators mount

Wires going through penetrators should be securely sealed with epoxy (or with other solutions) to be completely watertight and protected from accidental tear out.

This documentation book is released under the CC-NC-SA 4.0 License.