Introducing ClearHandoff: AI-Assisted Drawing Reviews for Engineering Teams
We built ClearHandoff to fix how engineering teams review technical drawings. Here's why — and what it does.
Drawing reviews shouldn’t happen in email threads or PowerPoint presentations.
Yet most mechanical engineering teams still review technical drawings manually — line by line — burning senior engineering hours on first-pass checks. Feedback lives in scattered emails. Version control means filenames like bracket_v3_FINAL_revised2.pdf. And when someone asks “did you fix that tolerance on page 3?” — nobody’s quite sure.
I’ve been on both sides of this. I’m a trained mechanical engineer who taught technical drawing at the University of Bremen. I’ve designed parts, created technical drawings, and worked with manufacturers. The gap between “done” and “delivered” is where things go wrong — and it’s where the tools have barely changed in decades.
Today we’re introducing ClearHandoff.
What it does
ClearHandoff is a drawing review tool for engineering teams. Upload a technical drawing (PDF), and in about a minute, our AI performs a first-pass review — flagging missing tolerances, conflicting dimensions, incomplete title blocks, and other common issues.
Then your team collaborates directly on the drawing: pinned comments on specific dimensions, threaded discussions, issue tracking with resolution status. When everything is resolved, you hand off to manufacturing with confidence.
What it doesn’t do
ClearHandoff is not meant to replace expert review. An experienced engineer’s judgment on design intent, manufacturability, and functional requirements is irreplaceable.
What it replaces is the repetitive part: the first-pass checks that catch the obvious mistakes before a senior engineer even looks. Think of it as a second pair of eyes that never gets tired and never skips a check.
The problem we’re solving
Every engineer knows this workflow:
- Designer finishes a drawing, exports it for review
- Sends it to a colleague or reviewer via email
- Reviewer opens it, maybe prints it, marks it up
- Sends feedback back — “check the tolerance on the bore diameter” — with no reference to where exactly on the drawing
- Back and forth until someone decides it’s good enough
- Manufacturing finds an issue anyway
The cost of this isn’t just time. It’s rework. It’s parts that don’t fit. It’s delays that cascade through the production schedule. And it’s the knowledge that walks out the door when your most experienced reviewer retires.
How it works
- Upload your PDF drawing — private and secure
- AI reviews the drawing for common issues: missing tolerances, dimension conflicts, incomplete specifications
- Collaborate with your team — pin comments directly on the drawing, track what’s open and what’s resolved
- Hand off with a shared link — your manufacturing partner comments directly on the drawing, no account needed
Who it’s for
We built ClearHandoff for engineering teams who review technical drawings regularly:
- Product teams reviewing and handing off drawings to manufacturing
- Manufacturing partners receiving and reviewing customer drawings
- Educators teaching drawing standards and review processes
Try it
ClearHandoff is free to start — no credit card required. Upload a drawing, run an AI review, and see what it catches.
