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Lab talk, the good, the bad, and the ugly
Dental-CAM
CAD and CAM combination output differences?
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<blockquote data-quote="k2 Ceramic Studio" data-source="post: 73277" data-attributes="member: 1067"><p>Really interesting thread, I would have said the same as Nicely that once an.stl is produced then you should get back what you have sent from every system you send it to. But and I think its a big but, When you have your own milling system you change little things, like how much out of occlusion you want it and what your minimum thickness needs to be. I don't think anything you set up is scientific I think its down to your systems calibration, you know what your system gives you, so you know how to design too your milling units output. But when you send it to another lab it only needs to be out by +/- .3 in one axis and have a tight bite or a very thin area or a missing contact and so on, unless people are trained to calibrate there systems every month then you will always get different dimensional changes from mill unit to mill unit, it is almost impossible to do an automated calibration. we need to mill a specific shape then measure about 6 different points on it to 0.015 and put the information through a special program that then makes very small changes and then we have to do it again and again until it tells us we are within acceptable boundaries(0.015)</p></blockquote><p></p>
[QUOTE="k2 Ceramic Studio, post: 73277, member: 1067"] Really interesting thread, I would have said the same as Nicely that once an.stl is produced then you should get back what you have sent from every system you send it to. But and I think its a big but, When you have your own milling system you change little things, like how much out of occlusion you want it and what your minimum thickness needs to be. I don't think anything you set up is scientific I think its down to your systems calibration, you know what your system gives you, so you know how to design too your milling units output. But when you send it to another lab it only needs to be out by +/- .3 in one axis and have a tight bite or a very thin area or a missing contact and so on, unless people are trained to calibrate there systems every month then you will always get different dimensional changes from mill unit to mill unit, it is almost impossible to do an automated calibration. we need to mill a specific shape then measure about 6 different points on it to 0.015 and put the information through a special program that then makes very small changes and then we have to do it again and again until it tells us we are within acceptable boundaries(0.015) [/QUOTE]
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Lab talk, the good, the bad, and the ugly
Dental-CAM
CAD and CAM combination output differences?
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