# Drawings that follow a change (Lab)

> In our lab, an engineering change carries through from the part to its drawing and a new revision, and the original is kept.

Status: Lab · Canonical: https://paracrux.com/docs/lab/drawings-that-follow-a-change

Lab: shown in demos and case studies, not for sale. This page describes what we are building, not something you can buy.

## What we are building

- A drawing on your own sheet format, linked to the part's properties, with dimensions, fits and notes. The CR-110 drawing is an A3 ISO sheet with the ParaCrux title block.
- An engineering change carried through: the CR-110 centre distance goes from 110 to 120 mm, and the part and its drawing rebuild to revision B, with revision A kept.
- A revision made on a separate copy. The bracket's original is preserved, a copy is widened and its bore enlarged, and each revision gets its own drawing with dimensions and model properties.

## See it

- Recording: [Connecting rod: modelled, drawn, then changed](https://paracrux.com/demo#recording) (LAB RECORDING · 29 SEP 2026)
- Recording: [Bracket: one drawing, two revisions](https://paracrux.com/demo#bracket) (NARRATED LAB RECORDING · 30 SEP 2026)
- [How one drawing became two revisions](https://paracrux.com/demo/bracket)
- [What ships today, and what's still in the lab](https://paracrux.com/demo#today)

## What it is not, yet

- Carrying an engineering change through to the drawing and its revision is not in the Agent you can buy.
- In both recordings an AI agent drives SOLIDWORKS through its API in our lab, which is not how the shipping Agent works.
- The recordings are edited and retimed, and stretches where SOLIDWORKS was computing are cut.

## What you can do today

- [Change a dimension on a copy](https://paracrux.com/docs/change-a-dimension-safely.md) (Available): Propose a new value, run it on a copy, check the result independently, then accept or reject. Your original is never touched.
- [Change two dimensions, with a volume limit](https://paracrux.com/docs/change-two-dimensions-with-a-limit.md) (Available): Change several dimensions in one reviewed run and state a measurement the result must meet. If it misses, you can't accept it.

## Covers

- Drawings on your sheet format (Lab): Drawings linked to the part's properties, updated through an engineering change and its revision.