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Lab talk, the good, the bad, and the ugly
Dental-CAM
Problems milling zirconia inlays/onlays with a Rolland DWX-52dci, chips and more chips
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<blockquote data-quote="A. M." data-source="post: 323930" data-attributes="member: 20088"><p>If it is the mill, shouldn't it chip other cases too? Why only the inlay/onlay cases? And after you slow down the mill, it should make it better, but it didn't...</p><p>Clean air is very important, but if that is the problem it would affect all cases, no?</p><p>Burr length is important too, but the mill measures it before starting using it... and it only makes a different when you are using bigger pucks, like 20-25mm. It should be ok on a 14mm puck.</p><p>I don't have a Roland, but I see a difference when I mill it, depending on how I design it in 3Shape... (we have 2, different years, but it makes a difference) (Now we have an Exocad, and have to say, designing it in Exo is like a dream coming true, no problem at all)</p><p>I think try to mill it without a connector where it chips. I think you put too many, sometimes less is more... <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p>And are you sure you put the right shrinkage in the software? I saw it is 1.25... not impossible but very rare when it is exactly that...</p></blockquote><p></p>
[QUOTE="A. M., post: 323930, member: 20088"] If it is the mill, shouldn't it chip other cases too? Why only the inlay/onlay cases? And after you slow down the mill, it should make it better, but it didn't... Clean air is very important, but if that is the problem it would affect all cases, no? Burr length is important too, but the mill measures it before starting using it... and it only makes a different when you are using bigger pucks, like 20-25mm. It should be ok on a 14mm puck. I don't have a Roland, but I see a difference when I mill it, depending on how I design it in 3Shape... (we have 2, different years, but it makes a difference) (Now we have an Exocad, and have to say, designing it in Exo is like a dream coming true, no problem at all) I think try to mill it without a connector where it chips. I think you put too many, sometimes less is more... :) And are you sure you put the right shrinkage in the software? I saw it is 1.25... not impossible but very rare when it is exactly that... [/QUOTE]
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Lab talk, the good, the bad, and the ugly
Dental-CAM
Problems milling zirconia inlays/onlays with a Rolland DWX-52dci, chips and more chips
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