RV caravan camper Solar Gland

Built this solar gland setup for my caravan to put the solar cables to the roof with out introducing leaks, having worked in caravan repairs and having a large off grid caravan for many years myself the last think i want is water leaks, I also could not find glands that really offer convenances of fixing one half to the surface while still being able to access it to change cables or do upgrades without disturbing the seal on the gland.

I installed mine through aluminium sheet on the side of the caravan but originally i designed for the roof , scratch up the surfaces on the mating parts and silicon it in , four rivets covered in silicon for mechanical bonding strength , and i suggest thin stainless steel screws for the lid i think they need to be around 15mm long , i have a box of 316 stainless steel screws from boat repairs so i just found some that fit in. the box itself screws onto the base plate and its not suppose to seal 100% around the lid as its suppose to be able to drain if it ever gets any water in it the water wont go down the hole in the roof because of the lip around the hole . 
If putting on a wall the threaded gland holes face down , this ensures that water will not go into the cables either , and the lip around the hole should stop water going in , all good in theory .

There is an optional insert that has to go in the hole from the inside , and silicon this in as well this insures the cable cant rub on sharp edges and also adds another layer of water is not getting inside from between the base and the wall anywhere ... hopefully.

there are threaded holes that can take standard size electrical compression glands , well they work with the ones i have, I'm thinking of making another lid version for another fitting that screws in for conduit.  

Printing : 

Don't use supports the base has higher surfaces for a reason to help silicon make a sold seal .

Use a filament with UV resistance if its outside like petg or asa 

Updates :

Added base version 2 which has an additional lip on the through hole just to prevent any dribbles of water going in the hole when mounted on a wall, perhaps not even an issue with version 1 but a little additional design thought that may help.

So if you find this is useful and download it , please leave comments or suggestions would love to see it in use and hear back from you as you can appreciate that these models take time and thought to create , thanks.