Dice Mold Makers (Cap Molds)

thingiverse

These files are for those who would like to make their own molds for making the 7 pc set of dice commonly used for D&D. These molds are made for you to attach your dice to the caps and then pour silicone over them to create your mold. Detailed instructions are below. Files include: 1 set of caps for each of the 7 types of dice. All are for normal sized dice 1 set of shells slightly spaced apart 1 male shell by itself 1 female shell by itself You will need 1 cap and 1 set of shells for each mold you wish to make. Generally the caps take 30 mins and the shells an hour and a half. 1. Attack your dice to the correct cap piece. Generally on the 1 face as this is the lowest face of the dice. I use little adhesive dots from the dollar store, but others use double sided tape or even hot glue. I like the dots because they leave almost no room for silicone to get between the cap and the dice for our first pour. 2. The shells will slide over and sit on the cap base printed part. I like to tape these closed with either blue tape or clear packing tape. Some silicone will come through but that is ok. Generally I will tape these closed first, then place over the cap part and then wrap tape around the bottom, trying to seal up the connection points as best as I can. 3. Once all the dice you want to make molds of are set, create your batch of silicone and pour over them slowly so they fill in all the numbers. If you are not using a pressure pot you might need to brush some silicone into the number of your dice. Follow the directions on your silicone for proper mixture and wait time. I try to fill mine to just below the top of the shells, making sure to cover the dice completely plus a little extra for strength. 4. Once your silicone mold has set, flip it over and remove the printed cap part. Depending on how you attached it to the dice be careful as you do not want to take the dice out of the mold at this stage. I also clean up the mold at this point, but do not remove the shells, you will still need them. I trim a bit of silicone from around the dice face if I need to, taking care not to cut into my dice face. 5. Super important here that you brush vasoline onto the silicone as you do not want your cap silicone to stick. Also make sure you do not get any on the dice itself as this can mess up your dice mold. I use a cotton swap for all the parts on top, and the flat part of my xacto knife to get the walls of the mold leading up to the dice. This helps me keep the vasoline away from the dice face itself. 6. Mix and pour your second batch of silicone over the dice, again make sure you are going slow so you do not get massive bubbles into your mold. Having a huge bubble appear at your dice would be a huge disappointment. Again following the directions of your silicone. 7. After your silicone has set and it is time to remove everything, I like to take off the shells first, you might need to cut down the seams lightly to break the silicone that has come through, but chances are they will come apart easily. Next you will remove the cap part, you might need to cut some silicone if you missed with the vasoline, but generally this should come apart easily. 8. You are now ready to make up some silicone. You might need to clean up some of the vasoline but generally speaking you should be all set and ready to make your very own dice. Future updates planned - Files for an oversized d20 and an alternative format d4.