Our problem is that when we scan a patients arch, we use a very accurate intraoral scanner. Our files are very good, and they are successfully printed by a company we use now. When we attempt to use our own DLP printer, the same file that was printed successfully by another company completes on our machine, but is not the same "size" as the original. In other words, all of the object is there, but if you make a plastic mold of it, it simply does not fit in the patients mouth even though it looks to the naked eye like an exact copy. We have tried 100 micron, 70 and 50, and all of the results are the same. There is a size or definition difference that does not create our prints accurately. We have played with the X, Y, and Z scaling, turned aliasing on and off, etc. etc. but have not been able to duplicate a scanned image accurately enough to work. In dentistry, precision and accuracy are tight parameters in order for an appliance to fit over the various cusps, tooth surfaces and anatomy of each individual patient.
Our machine is being developed by a third party, and they have not been able to resolve this issue either. They are using what I assume to be a custom version of Creation Workshop written for them. I noticed they are now listed in the partners section of the website, without a link.
I am here today to see if someone has had similar issues, or can possibly get me up to speed on this subject. I will be operating this machine, and it is comforting to know that it is open source and supported by a forum and users base.
Sorry to be so wordy, but I hope a good explanation might help someone help me.
Thanks.Statistics: Posted by greglab61 — Sun Feb 15, 2015 7:20 pm
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