Dice vault/box + silicone mold jigs/tools for pressure chamber resin casting

This is a reupload of my design from myminifactory

Hey yo, I have been struggling for some time to make a working dice vault silicone mold for resin casting, and through many iterations, I have made something that works quite well for me. Hopefully these jigs will serve you good as well.
 

Some important specs: 

• Hex die slot width, from corner to corner - 29mm. Check ya dice for fitment before you do anything.
• Magnet slot diameter - 8.3mm, made for 8mm magnets
• Dice vault diameter - 98mm
• Mold bottom diameter - 170mm (aka your pressure pot diameter should be bigger than that)

Molding instruction:

1. Read the instructions before you start the process.
    
2. Print all of the models. You will need to print 6 secondaryvents, 2 main vents, 2 moldwalls, 2 moldbottoms, 2 moldlids and multiple regmarks.
   
   You can substitute moldwall with cardboard and all of the vents and regmarks with whatever you can find lying around. Additionaly, you can use plywood to create your own moldbottom and moldlid.
    
3. Sand and polish and second cure the two vault pieces. The better you do it, the easier would be the postprocessing.
   
   Inner pockets of the dice vault can be hard to polish. If you are a perfectionist, you can try using UV resing to coat the inner parts, but it is a nightmare to do it consistently. If you are lazy as me, just use masking tape and a gloss polish.
   For the sanding guide, check this video by Rybonator.
    
4. Wait for a month (or use any other way to avoid cure inhibition). That is an important step, otherwise the silicone will not cure with the resin printed parts.
   
   You can check if everything is alright by pouring a small amount of silicone on all of the resin printed parts.
    
5. Pick a vault piece and and lie it on the piece of cardboard, surrounding it with moldwalls and using hotglue to fix the moldwalls in place, sealing the gaps. To secure the vault piece use a piece of bluetack underneath the piece and squish it to the cardboard. Place registration marks randomly inside the mold, leaving equal space between the vault piece and the walls. Secure the registration marks with bluetack as well.
   
   Do doulbe check if you have sealed all of the gaps with hot glue!
    
6. Slowly pour the silicone in the mold, leaving approx. 1 cm between the top of the vault piece and the surface of the silicone. Place the mold into the pressure chamber and wait to cure.
    
7. Once the silicone is cured, remove the cardboard from the walls and all of the registration pieces. Carefully cut off the excess silicone from the exposed vault piece and registration cavities. Use the moldlid to align all of the vent pieces and glue them to the vault piece. Remove vault walls from the silicone and shift them up, so you would have approx. 1.5 cm between top of the silicone and the top of the wall and fix them to the mold with hot glue. Apply mold release to the silicone surface (spray preferably). 
   
   If you missed or decided not to use registration marks, during this step cut the registration keys in the silicone.
   And yeah, check for gaps again, very important.
    
8. Slowly pour the silicone in the mold, leaving approx. 1 cm between the top of the vault piece and the surface of the silicone. Place the mold into the pressure chamber and wait to cure.
    
9. Repeat 5-8 steps for the second vault piece.
    
10. You are done! At the end, you should have two molds per vault piece.

The casting process is simple enough:

1. Apply resin release on the moldbottoms, moldlids and silicone parts.
    
2. Mix and pour resing into both "deep" silicone molds (do you magic - dirty pours, glitter, petri dish, you name it).
    
3. Cover the other silicone parts (flat lids) with a thin layer of resin.
    
4. Pop dem bubbles. 
    
5. Fix mold pieces between moldbottom and moldlids with rubberbands. Twist and turn the contruption a little to squeeze excess resin out and make sure everything is snug and in place.
    
6. Top the resin off into the center vent hole, you should see that you have excess coming from the secondary vent holes.
    
7. Place everything into the pressure chamber and wait for results!
    
8. Once cured, use a flat knife to cut off the excess funnels to avoid chipping, preferably right after or before recommended cure time (aka while it is a bit soft).
    
9. Glue the magnets into the recesses of the vault pieces. Double check the orientation of the magnets, making sure that the pieces could be closed in any rotation.
   
   For an extra step, you can protect the magnets by sealing them with UV resin.
    
10. Lightly sand and polish the vault pieces.
     
11. Enjoy you new and pretty dice vault, you magnificent bastard!

Tips and tricks:

• Although different parts of the model require both fdm and sla, you can substitute half of the parts with plywood and several bits and pieces.
• Watch mold making process video by Robert Tolone.
• Use spray mold release on the inside of the vault, or it can easily rip, especially in the dice “pockets”.
• Read the instructions above!