I am a retired “ Master mold maker . I find this video rather basic. Should use use hexagonal bolts for location nuts ( better feel for too and bottom mold to lock . Cutting the gates to the cavity is wrong as you need to take into consideration how metal flows with and against centrifugal forces to maximize the cleanest possible casting . And ALL cavities need an air vent .
Hola amigo . exelente forma de producir por cantidad los plomos .amigo cuánto sale más menos hacer un equipo de esos para producir plomos .un saludo de chile
Hello, Would this work with stainless steel or sterling silver posts on mild steel earrings? And does it come with collets or do you need to purchase separately?
Hi Larry, I'm working with a 2 part uerethene plastic with a 20 minuet pot life and a 4 hour demold time. I have to use this slow setting uerethene because there are fine undercuts that need to be filled before putting the mold halves together (20") mold I'm running my machine 2500 (Tekcast) rpm and 70psi clamping pressure. If I run it any faster the plastic flings out the sides. What temperature after mixing the a and b should I be pouring at. I've been pouring at 115F. This mold is driving me crazy. Thanks
Good evening Nathan, Please send me a picture of the mold with the 2 halves open and I might be able to help you. Send it to info@LarryRazza.com Thanks!
My father was a mold maker, he worked his entire life in the R.I. jewelry industry. (Coro, Arden, etc.) I was always fascinated by his work and didn't realize until years after he passed what a master craftsman he was. I worked a few summers at Arden (kicking a foot press) and was thoroughly impressed to see that his work room - where he alone worked - was incredibly, almost obsessively meticulously organized, and clean as a surgical area. I searched YT for mold making videos and much to my surprise noticed that the newspaper used in this video is the Providence Journal, which I took to signify that I stumbled onto a R.I. based video.
This unit was sold... but we just received a beautiful Bridgeport Torq Cut TC3 VMC with super low hours. We will be filming a video on it soon! Best Regards, Larry Razza ... LARRYRAZZA.COM
Unfortunately no, only low melting alloys such as Tin (Pewter), Zinc and Lead. Primarily used in the fishing tackle, costume jewelry and related industries. You can used this molding technique for wax casting too... then placing the wax figure in a plaster mold, burn out the wax and cast silver in the plaster (plaster is called "investment")... this is commonly used for the high production "Lost Wax" casting process.
This guy operating wrong way everything.i m turret operator but I m not allow to make video at work.but this guy have no racking or high bay experience bcoz he is just a machanic
