Watchy Invader Remix

This is a remix of the original SQFMI Watchy Invader Case. 

Modifications were mainly made to fit the Watchy V2 sold on AliExpress. 

A centralized hub of information about the AliExpress Watchy ("E-Watch-FOSS") can be found on the E-Watch-Foss page by Szybet.
 

Bottom Casing Info

There are three different versions of the bottom casing. 
 

1. bottom_case.stl
   
   This is a deep case. I only recommend this one if you have a large custom battery or something that you want to fit inside. 
    
2. bottom_case_slim.stl (less than 1cm thick!)
   
   This one is slim - but still fits the "E-Watch-FOSS" double decker PCB. The difference is only 2mm in depth between this one and bottom_case.stl.
   
   If you want the original screws to fit - you will have to use this slim bottom case. The slim one is the one I use now, and what I recommend. 
    
3. bottom_case_slim_curved.stl
   
   Curved version for the watchband mounting holes. Might be harder to print than the flat version, but it might also fit smaller wrists better. 
   
   I personally have not printed this one yet. Please post a make if you print it!

Printing Recommendations

I recommend scaling the button size down to 90% in your slicer (I have left the .stl file full-sized), as mine did not fit in my 3d printed remix invader case when the buttons were full size. Your milage may vary (especially if you have a resin printer - I do not). If you manage to fit the buttons in full-sized you will probably get less button-rattling. 

I found that the buttons turned out really good only if I printed them individually (one at a time). This means that the nozzle always stays on the button, and there are no imperfections. Only takes like a minute each. That's four whole minutes of 3d printer entertainment right there. 

I used an external brim to print the top and bottom cases, because I did not want any warping. Probably use a medium-level layer height. 

Remix of the original SQFMI Watchy Invader Case. 

Modifications were mainly made to fit the Watchy V2 sold on AliExpress. 

A centralized hub of information about the AliExpress Watchy ("E-Watch-FOSS") can be found on the E-Watch-Foss page by Szybet.


Modifications to original Watchy Case:

1. Buttons

I made the buttons slightly longer than the original. I recommend also to scale the button size down to 90% in your slicer, as mine did not fit in my 3d printed invader case when it was full size. Your milage may vary (especially if you have a resin printer - I do not).

Inventor .ipt file included if you want to modify. 

2. Top Casing

I removed these two protrusions (from the original design) on the inside of the top case, as my PCB did not fit into the top case with them included. The inside of the top case is now flat. 

I also added screw holes to the top case. This is designed to fit the little M1 screws that come with the AliExpress Watchy V2. You can screw the case directly onto that double-decker PCB sandwich. 

You probably don't need the screws if you are happy to just glue the top and the bottom cases together. Screws are good for easy repair though. 

I forgot to save my inventor .ipt file for the top casing, sorry. 

3. Bottom Casing

Most dramatic modifications made here. The original invader case just had a little pouch in the bottom casing to fit the battery. I have extended this pouch to fit the entire double-decker PCB that comes with the AliExpress Watchy V2. I also added screw holes. Tolerances were quite low for me (had to squeeze it in). 

There are three different versions of the bottom casing. 
 

1. bottom_case.stl
   
   This is a deep case. I only recommend this one if you have a large custom battery or something that you want to fit inside. 
    
2. bottom_case_slim.stl
   
   This on is slim - but still fits the "E-Watch-FOSS" double decker PCB. The difference is only 2mm in depth between this one and bottom_case.stl.
   
   If you want the original screws to fit - you will have to use the thin bottom case. The thin one is the one I use now, and what I recommend. 
    
3. bottom_case_slim_curved.stl
   
   Curved version for the watchband mounting holes. Might be harder to print than the flat version, but it might also fit smaller wrists better. 
   
   
   
   
    

Step files included if you want to modify to increase these tolerances.