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Showing content with the highest reputation since 07/14/2020 in Posts

  1. 2 points
    Dr. Mike

    2-Factor Authentication

    To enhance security on the site, 2-factor authentication is now available. It is recommended that you enable 2FA to reduce the risk that your account could be compromised. Currently, there are two methods available - the Google Authenticator phone app and security questions. Google Authenticator is the easiest and more secure option. To enable 2FA with Google Authenticator do the following: 1) Log into your embodi3d.com account 2) Go to your account settings by clicking on your username at the top right and choosing Account Settings 3) Go to the Account Security menu and choose to Enable Google Authenticator. If you don't yet have Google Authenticator on your mobile phone, you can download it from the Google Play or Apple Iphone store. It is free. 4) You will then be shown a scannable QR code (blurred in the picture below). Scan this using the Google Authenticator app on your phone. IT IS RECOMMENDED THAT YOU PRINT OUR THE QR CODE SCREEN AT THIS POINT AND KEEP THE PRINTOUT IN A SAFE AND SECURE PLACE. IF YOUR PHONE IS EVER LOST OR STOLEN, YOU CAN USE THE PRINTOUT TO RECONFIGURE GOOGLE AUTHENTICATOR ON A NEW REPLACEMENT PHONE. The google authenticator app will display a 6 digit code that changes every 20 seconds or so. Type in the current code to confirm that your phone is set up properly. That is it! Now you have 2FA on your account and greatly enhanced security!
  2. 2 points
    You don't need to create separate DICOM files for the skull and mandible. Depending on the overlap of the teeth, you can erase some of the segmentation in order to create gaps between the skull and mandible--if you are segmenting yourself. If you are uploading to democratiz3d, you can download the model and then either apply a plane cut in Meshmixer or if you want the actual articulations, you can "paint" the parts of the model to delete to create the necessary gaps, then repair the holes. Again, the difficulty would depend on whether you can separate the teeth on the maxilla from the mandible.
  3. 2 points
    Ender 3's bigger bro, Creality CR-10 is better in any possible way - huge building volume (300-300-400 mm), better controller, better extruder and hotend, double Z axis, safer power supply... I bought my CR-10S on Black Friday for 320$... I'm not printing on it often - my other printers are much better and more expensive. But for small operation, Ender 3 and CR-10 are quite good. There are 3d printing farms with those printers and they can be very reliable after some hardware upgrades and tunning.
  4. 2 points
    Regards At the beginning of this year I bought an ender 3 pro. It is my first printer and some professionals have been happy with the models for teaching purposes that I have managed to print.
  5. 1 point
    The temporomandibular joint is extremely complicated one, a simple hinge won't simulate the movements in the axes properly. A whole system of hinges and strings is needed. For simple demonstration purposes, the neodymium magnets works great.
  6. 1 point
    Hello Eric, you can use 3D Slicer https://download.slicer.org/
  7. 1 point

    Quality of models

    At my department we have Intellispace Portal 7 and I am quite pleased with it, depending what you want to do with it. The major thing is that there is possibility to export .stl file from volume rendered recons (short VRT) from version 6 or 7 and above, which is not possible from Siemens Syngo. Also we have Philips Azurion C-arm and when you perform rotational intrarterial angiography it is possible to make VRT 3D model and also export it into Intellispace Portal (I did that only once when Philips aplicator was at my department but will have to do it more when I am back after my final exam). Also, I tried version Intellispace 9 or 10 (not sure which one) at RSNA meeting and it looks pretty nice, too. The thing is that all software in workstations have the same algorithms for automated segmentation and generation VRT models that are based on different threshold values for different tissue density and as said before, the best visualized tissues are those that have significant contrast to other tissue (like bone or contrast blood to surrounding soft tissue). Organs like liver, kidneys etc. are composed of different density tissues that have different density voxels on CT scan that can range from higher HU values in one voxel (blood vessel in post contrast scan of liver) to lower HU values (let say small area of lipids accumulated in hepatocytes), and if that area is near liver capsule where adjacent tissue is fat, you will have artefacts in your automated segmentation of liver. That is why I love manual or semi-automated segmentation for now until AI makes automated segementation more accurate (there was post about application of AI and segmentation in 3D slicer in some other topic).
  8. 1 point

    Quality of models

    It looks shiny, but in my honest opinion, Philips are not famous with their software. They have notorious "fame" among the bulgarian radiological community as the worst software with the most non-user-friendly interface. My colleagues are all into Siemens and Esaote here. Besides, Slicer 3D is free, open source program. From the commercial ones, I really like Osirix and Materialise, but the best one in my opinion is Autodesk Within Medical. The price of 17k euro per year is a bit stiff, though.
  9. 1 point
    Dr. Mike

    Quality of models

    Do you know how much the Philips Intellispace Portal costs? Alternatives like democratiz3D and 3D Slicer are free.
  10. 1 point

    AI assisted segmentation in 3D Slicer

    About a year ago nVidia announced the Clara project which is basically segmentation with AI help. The first release with this functionality is now available for 3D Slicer. Look here -> https://discourse.slicer.org/t/ai-assisted-segmentation-extension/9536 IMHO this is a very big step and even in this early state it looks very promising.
  11. 1 point
    Medical 3D printing isn't at a point where a user can buy a printer, plug it in and do a few prints a year. There is a big learning curve a user must go through in order for prints to turn out correctly. This is especially true for medical trial exhibits where certain anatomy or conditions need to be highlighted from a CT scan. This requires 3D printing expertise and medical training. Furthermore, you will need space and all the related tools that go with 3D printing. Some printer manufacturers show their printers sitting on an office desk. This really isn't practical because of the noise, heat and messy post print processing. We offer a 3D printing service specifically for medical trial exhibits: https://www.embodi3d.com/3d-printing-anatomy-models-for-medical-malpractice-trial-exhibits/
  12. 1 point
    Dr. Mike

    Formlabs Fuse 1 SLS printer

    Formlabs now has a low cost nylon SLS printer, the Fuse 1. It is about 10 times cheaper than other selective laser sintering printers. Check it out.
  13. 1 point

    Formlabs Fuse 1 SLS printer

    There is a game changer on the SLA front - Josef Prusa made an open source SLA printer - Prusa SL1. You can buy two of those and one Prusa MK3 with the money for one Form 2. It prints down to 10 microns layer thickness (after some tweaking of the slicer). It is open source, which means that the wave of cheap prusa clones is coming. This will change the whole SLA sector because let's face it - with the money for one Form 2 you can buy a whole 3D printer farm with the best printer of Winter 2018 (Prusa MK3) or you can buy two printers of the same class, with the same parameters, which requires more tinkering and experienced staff. The bad side about the Prusa printers are the limited Wi Fi options...
  14. 1 point
    Dear Embodi3D Members, We are excited today to announce democratiz3D -- the world's first one-click CT scan-to-medical model creation service. No longer will you have to struggle with expensive or difficult to use software to make 3D printable models. With democratiz3D, just upload your CT scan, fill out a few basic parameters, and click Submit. Within 10 or 15 minutes or so you should receive an email that your model is finished and ready to download. Your model will be manifold (error free) and ready for 3D printing. If you want to share your model with the community, you can do so with a click. democratiz3D is free for Embodi3D members. Right now only the bone making module is active. Look for tutorials and additional information in the coming weeks. democratiz3D takes medical 3D printing from something that was difficult, expensive, and time consuming and makes it quick, easy, and free. Click here to get started. Thank you for supporting us as we try to bring medical 3D printing to the masses! Sincerely, Dr. Mike and the Embodi3D team
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