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AUTHOR: Roger Liucci

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Tips and Tricks for Upgrading Revit Projects

Many of our clients hesitate to upgrade their Revit projects to the latest release. There are many reasons for the delay, cost, project member concerns, time, or even loss of work. There are many benefits to upgrade to the latest version of Revit. Security, stability, and new features are enough for me to want to upgrade. Here are some tips and tricks in upgrading your Revit projects.Host Models vs Linked Models
It’s best to upgrade the linked Revit projects before upgrading the host. if not, the host model will temporarily upgrade the links in order to load them in the upgraded host model. I open the host, unload all the links save it, then upgrade. Be sure to check the paths of the other linked elements once upgraded and reload. Instruct all team members to synchronize with central, relinquish all elements, and close their local copies of the central model. Backup the models and archives. It’s recommended to audit the model at this time. Why not perform the Revit project maintenance as outlined in my blog, Revit Project Maintenance Guidelines.

Upgrading Beyond 2017
The most important aspect to understand when upgrading a project is, what will change. In most cases nothing, but when our clients upgraded to Revit 2017, we noticed text problems, correction, changes. “The method for measuring text size has changed so that the Text Size parameter more accurately represents the height of a capital letter (similar to AutoCAD).” In Revit 2016 and earlier, text size is measured by the ascender height – the height of lower case letter ‘h.’ In Revit 2017 size is measured by the cap-height – the height of the capital letter ‘M.’Measuring the baseline of the top of a capital letter

After upgrading a model, review all views and sheets to verify the changes to your text instances. Note: Be sure that the proper fonts are installed when opening an upgraded model. Substituted fonts further will change text due to the font sizing changes. I recommend Bluebeam for a before and after, full set comparison. This way no changes that occur as a result of the upgrade will be missed.

Revit Collaborative Projects
When a project has work sharing enabled, the Central Model can be upgraded as we’ve discussed. However, as discussed in the Revit Project Maintenance Guidelines blog, we should make sure all parties are aware of the upgrade work being done. A new Central model will be created, then everyone can be instructed to create a NEW local file from the upgraded central.

All project contributors must have the save Revit version and Build. Refer to this Autodesk article, How to tie the Build number with the Revit update to make sure all project members are on the same version and build. When the project is being hosted on BIM 360 we can upgrade the project via the tools within BIM 360 DOCS.

Go to docs.b360.autodesk.com, sign in, and navigate to the project that you want to upgrade. Find the Navicon, Waffle, or nine dots in the upper left-hand corner of BIM 360 DOCS. go to Project Admin, you will find Revit Cloud Model Upgrade.

If you have any questions or need additional help in upgrading your Revit projects, please reach out to our technical team and Contact Us


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Top 12 Tips for Utilizing Revit Groups

Using groups in Revit seems to be a no brainer; we create groups for elements that are repetitive and yet we are still able to quantify them as if they were individual elements. Modify one instance of the group and it will be updated everywhere in the entire project. One can even exclude an element from a group instance to make an exception. Over the years, Autodesk has improved upon this awesome tool, but has not made it more flexible. If we create a group the wrong way, Revit gets upset. You don’t want to see Revit upset. In actuality, Revit actually gets confused. The main problems occur when groups contain elements that are constrained outside the group. In the simplest form, if one was to create a group of elements including a door, the wall where the door is hosted would need to be within that group. And in many instances the wall could have a top constraint that is not applicable for all instances. It is also common to create groups for casework that rely on the walls for placement, but the walls are not part of the group. In class, you may have heard me say, groups should be “self-centered”. These types of constrained can also cause problems in Design Options. That being said, yes, there are restrictions that one should be aware of when implementing the use of groups throughout a big project. Here are some tips.
  1. Put elements and their hosts in the same group.
  2. Ensure all elements in the group are hosted to the same level.
    1. Some elements may not behave correctly. Line based families for instance.
  3. Don’t constrain elements outside the group. There are many kinds of constraints.
  4. Large numbers of elements in a group will hinder performance, and possibly cause corruption.
  5. It is better to have many small groups than a few large groups.
  6. Don’t nest Groups. Don’t have groups inside groups.
  7. If you see a warning asking you to fix the groups, don’t. Fixing the group really doesn’t fix the group. It actually explodes it or creates a new group that is no longer referenced to the first group.
  8. Name groups correctly. Don’t make copies of groups called Group1.
  9. Although we are now able to mirror groups, some elements with constraints still cause problems when mirrored. Ceilings in groups get confused when mirrored.
  10. Take ownership of the group type workset when editing
    1. All elements in a group reside on the group instance workset.
    2. Be Aware of the ownership of type properties.
  11. Be cautious putting floor or stairs in groups. Don’t lock the sketch lines to other objects.
  12. Groups can be used to distribute elements and then can be un-grouped.
In a previous post, I discussed “What Causes Revit Data Corruption?” and some model maintenance suggestions, “Revit Project Maintenance Guidelines”. I hope you find this article and those listed here helpful. Reach out with questions or comments anytime. Credits: Best Practices with Revit Groups: Rule #1 http://www.seandburke.com/blog About Best Practices for Groups Autodesk Knowledge Network
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3D Printing for Veterinary Surgeries

I recently had the privilege of working with Dr. Arnold S. Lesser, VMD, from New York Veterinary Specialty in Long Island, New York, and his assistant, Victoria Leonard, on two patients with angular limb deformities; one a Newfoundland and one a cat. Dr. Lesser asked our 3D Printing Team to print replicas of the front legs of each pet on our ProJet 660Pro from 3D Systems. This printer can print models as big as 15” x 10” x 8” and uses a sandstone powder type material, somewhat like actual bone, when processed properly.

After receiving the STL files of the complete PET/CAT scans of the animals, I imported the files into 3D Studio Max, a modeling visualization program from Autodesk. From here, I isolated the portions of the scan Dr. Lesser needed for his pre-surgery planning – specifically the humerus, radius and ulna – and within just a few hours, the models were printed! Using these models, Dr. Lesser was able to practice the surgery, in turn lessening the time the animals would be under anesthesia.

Dr. Lesser addressed the angular limb deformity by cutting the lower part of the radius and ulna and using an external skeletal fixator to fix the bone into straight alignment and, in one case, lengthen the leg. In the end, thanks to Dr. Lesser and his team and our 3D Printing Team, both of the pets had successful surgeries!

If you would like to learn more about the benefits of 3D printing for the veterinary field, or the 3D printing services we offer in general, please contact 3dprinting@microsolresources.com!

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