Dear Everyone!
I read theese comments with intrest,because i have a multimat 2 touch and press furnice too.I have not much experince about pressing,i started to making emax crowns about 2 years ago,but the number is in a month max.5 so I like to ask my questions here because i'm sure here in this forum there are a lot of professional techicians who had daily rotinue in pressing.
Investing: From the very first time i'm using Ivoclar pressvest speed! The only problem with it,that i have to put in the furnice is heated to 850 Celsius.Has anybody try what happening if i put it in the cold furnice wait until the next mornig to press?? I started to using
Sprueing:If a sprue single crowns i have never had problem with them (the maximum was (6 crown in a 200g investment) I have always problem with the bridges. If i made a POM (press on metal) a big case (like 4-5 unit bridge) Something is always missed....from the dealer and from the demonstrator???IT's simple!!! i always heard sprueing is very simple!!!but sometime i had problem,and yet i didn't find any useful infromation about sprueing press crowns.(if somebody know an exact book or a video it will be veryhelpful.)
Pressing: Please somebody tell me how can i thinking and making disions in changing parameters of the furniture.When i made my first pressing with a 100g investment it completly broke because i overpressed) After i didn't try any 100g because i don't know if i change the heating temperature what will happen....) So i made always 200g ivestment.
I started to make custom pellets for pressing zirconia and metal,but i have to figure out a special pressing program,and i changing pressing time,and final temperature..
So if anybody has time to answer my questions, or who can help my.Please
Thank you