In this video, I will show the set-up for creating a rubber mold of a small sterling silver brooch, how to use a vulcanizer to heat the mold, and how to cut the mold open and insure that there is a channel for the metal to flow.
Thank you, Lauren! I found a vintage vulcanizer and wondered how to use it. Your tutorial is very helpful. I'm looking forward to watching your other videos to learn much more. A+!
Great video..thank you! I remember one of my fellow students making a mold of my husbands wisdom teeth with this method. It "cooked" the teeth lol...made a weird nasty stink, but it worked! I still have wax copies of them.
You can also leave the paper on the outside edges. I never have trouble prying it off. I just try to introduce very few things. Thanks for the feedback.
Un molde vulcanizado de una medalla o una estatua,es posible con la ayuda de un poco de petroleo hacerlo que aumente de tamaño asta un 500 por ciento. El molde en cuestion sehunde en petroleo,y este sehincha reproduciendo el grabado:una vez hinchado con cera de parafina se reproduce la ampliacion.a este proceso le llamé "jonapru",espero les sirva
whats better please? vulcanized rubber moulds or liquid silicone moulds? is one better than the other for high detail? whats the life duration comparison? is one more expensive than the other would really appreciate a bit of insight - for i am a noob lol
12:29 nicely done, but this requires a professionally equipped jewelry workshop. In Europe they only sell silicone for higher temperatures to industry and not to private individuals.
it's a hard methode, without using rivets and talc to release the two parts of the mold easilly, you just need to cut only the borders with the surgical knife .
I do agree. It’s just one way. I have used talc and keys in the past, however one or two times, I picked up a light texture from the talc and so I like having less interrupt the mold. I don’t cut them apart every day, but learned from a jeweler who was amazing at it. It takes way more practice to cut smoothly. Thanks for watching.
Hi there! This video has a lot of good information in it, and I knew none of it before, thanks. I wonder though, why do you continue to cut and separate the two mold halves from each other -- it seems that if you stopped after you got past where the piece was and left the rest intact you would simplify alignment later. IT would also be great to see you use the mold and make a piece with it.
As I mentioned, my cutting in this video is rough😂. I’d suggest looking up cutting rubber mold videos that are out there. I’ve left some together (you can); I feel like I mess up the pressure when holding it to inject wax. Cutting keys is the important part. I have another video with using the wax injector.
Hi. Very informative video, well done. I'm curious if you'd share links to where we can buy/obtain the materials and tools you used here, such as the vulcanizer. Is a tire repair vulcanizer suitable for making small rubber casts?
The tools shown here are older and the company is do longer available. You can search jewelry suppliers and tools in your area and you should see multiple options. Jewelry vulcanizer for rubber molds and jewelry wax injector would be the keywords.
I've saw a video of someone who cut nothing out, and just shoved the piece in there and let the rubber close in on it, and overflow from the mold. This also allowed them to use some paste as a mold separator to keep the top and bottom part of the mold apart. Wouldn't that be simpler? Thanks for the video!
Depending on your shape, you can do that. You can also put little pins in place and use parting powder. Every once in a while, I can see the texture of the parting powder on the wax blanks. This is just one way. There are many. That's the best part:) Thanks for watching.
There are a lot of ways to do this. This is just one. I have used parting compound in the past, but I found that sometimes it left a texture on my original pattern. I would then have to sand each wax to clean this up. You can also imbed metal "keys". Everyone has a way. Jewelers who have been in the field forever would have even more efficient methods. Thanks for watching.
I have left some molds closed but they tend to shift more when you inject wax. You really want large keys and a jagged surface so the mold has teeth to grab onto when you put it together.
Would the title Professor be as in French usage, or the holder of 'a chair' in a Chartered University. Definitions 'across nations' can be so confusing!
@@laurenseldenmakingthings7045 Professor in France means Teacher. In the UK, the title is derived from the Roman idea of a heirachy of academics usually found in a lecture theatre & presided over by 'The Professor' who held 'the chair' in his subject; the more junior academics being Readers then Lecturers. My Dad eventually 'held a chair', I have only ever been a teacher or lecturer; So I suppose your equivalent might be 'lecturer' or 'senior lecturer'. The differences are interesting.
@@pcka12 Thank you for the explanation. I am a teacher first and foremost, but by now (and by my rank), I guess I hold a chair.😜 I’m a Full Professor (in the states). I still have a massive amount to learn though and hope I always will.
Ha. Thanks for the comment. I totally agree. I never worked an an industry where I did many of them. I always self- disclose to my students that I have a long way to go. It requires touch, practice, and probably a master to show you how.
