Graspline
Engineering graphics, drawn step by step
Paste an engineering graphics question and see the textbook construction drawn step by step, in first-angle projection. You confirm the facts it read before anything is drawn, and every drawing is verified against those facts.
Open GrasplineFree while we test it. Anyone can use it.
Built by an engineer, for engineering students. Stuck, or have an idea? Write to me: [email protected]
See it work in 2 minutes
Video and music © 2026 Drengr. All rights reserved.
What it draws
- Projections of points
- Projections of straight lines
- Projections of planes (laminas)
- Projections of solids
- Curves (conic sections)
- Cycloidal curves, involutes and spirals
- Plane geometry constructions
- Scales (plain, diagonal, vernier)
How it works
- Type or paste the question, as it is printed.
- Check the facts it read, and change any that are wrong.
- Step through the construction, one line at a time, with the reason for each.
Be first to see the full Graspline
It's free while we test it. Join and we'll say hello now, then send one email when the full version opens - with a founding-member discount for being early. No newsletter, no spam: we're too busy drawing auxiliary views.
Used for those two emails only, sent through our email service, Resend. Unsubscribe or have it deleted any time: [email protected]. Under 18? Give a parent a quick heads-up first.