> For the complete documentation index, see [llms.txt](https://wiki.purduesigbots.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wiki.purduesigbots.com/vex-cad/making-a-chassis/inventor-chassis/modifying-existing-constraints.md).

# Modifying Existing Constraints

Let's say you've constrained this 2x to the 5x, but now you want to mount the 2x on a spacer.  We could constrain a spacer to the 5x, then the 2x to the spacer.  That's bad practice, and there's a nicer way of doing it. 

## Modifying Insert Constraint

The insert constraint brings two faces together and keeps them concentric.  How close the faces are to each other is a parameter within the constraint. 

On the left of our screen is our model browser.  If we click the `Relationships` folder, we can select the constraint we want to modify.  By typing`0.5` here and pressing `Enter` on our keyboards. 

![Insert Constraint Parameter](/files/-MfG-VUoXWtqFe4E8kCL)

If done correctly, the 2x will now be 0.5" away from the 5x. 

![2x is Raised 0.5"](/files/-MfG-wmBydWfBIrKdfUg)

{% hint style="info" %}
Remember to save!
{% endhint %}

## Contributors to this Article:

* Jess - EZ


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://wiki.purduesigbots.com/vex-cad/making-a-chassis/inventor-chassis/modifying-existing-constraints.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.