# Using Dynamo to place new instances in a Revit Project

**URL:** <https://forum.dynamobim.com/t/using-dynamo-to-place-new-instances-in-a-revit-project/8114>\
**Category:** Revit\
**Created:** [December 8, 2016, 10:23pm UTC](https://forum.dynamobim.com/t/using-dynamo-to-place-new-instances-in-a-revit-project/8114 "2016-12-08T22:23:16Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![i.tzivanidis](https://avatars.discourse-cdn.com/v4/letter/i/dec6dc/32.png) [@i.tzivanidis](https://forum.dynamobim.com/u/i.tzivanidis)\
**Post date:** [December 8, 2016, 10:23pm UTC](https://forum.dynamobim.com/t/using-dynamo-to-place-new-instances-in-a-revit-project/8114/1 "2016-12-08T22:23:16Z")

</div>

Hello chaps!!

I am trying to create a definition that reads pipe orientation level etc. and then places a hanger family with appropriate parameters along its span.

My definition reads the rotation of vector / pipe to determine orientation, and places families along pipe span and life is good.

Although I used FamilyInstance.ByPointAndLevel to generate that and as you may be aware it TRANSPOSES the created instances for every run. Yes I have tried closing and relaunching Dybamo

Now I swapped to FamilyInstanceBy Point in Transaction. This node does not feed the level to my family.

Last but most importantly when I run it with the Point in Transaction it messes up my rotations… e.g. the first instance has the correct rotation while the following familes are 90’ perpendicular ☹ ☹

Any ideas?

Thanks in advance.

John

 ![](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/f/b/fbb10f17e712f49bb5d4041173d80a05d0c7f02c.PNG) ![](https://us1.discourse-cdn.com/flex022/uploads/dynamobim/original/3X/c/4/c492e11fda3df080ad04bd07d8f413427d97b6b4.PNG)

---

<div class="post-metadata">

**Author:** ![i.tzivanidis](https://avatars.discourse-cdn.com/v4/letter/i/dec6dc/32.png) [@i.tzivanidis](https://forum.dynamobim.com/u/i.tzivanidis)\
**Post date:** [December 9, 2016, 11:05am UTC](https://forum.dynamobim.com/t/using-dynamo-to-place-new-instances-in-a-revit-project/8114/2 "2016-12-09T11:05:51Z")

</div>

Does anyone know DYNAMO and Revit link with the families? is it element ID?

Is there something I can change to the family to make Dynamo create new set of instances?