Engineering & CAD
Sandra helps engineering teams send CAD files, drawings, specs, and 3D models through private links that are easy for manufacturers, architects, and partners to open.
How teams use Sandra
Real-world workflows that deliver results.
CAD to manufacturer
Send STEP, IGES, DWG, and archive folders to suppliers without forcing them into your internal drive.
Drawings and specs
Deliver assembly drawings, PDFs, BOMs, and project notes in one clean transfer link.
Prototype review
Share sensitive models for review, set expiry, and keep the final version close in Vault.
Key capabilities
The tools that make this workflow possible.
Large file delivery
Move heavy technical folders without compression or format changes.
Private access
Use links, expiry, and limits to control how long a delivery stays available.
Vault for final copies
Keep approved drawings and deliverables organized after the transfer is done.
Security
Security without the jargon.
End-to-end encryption
Enable E2EE in one click. Files are encrypted in your browser (AES-256-GCM) before upload. Sandra's servers never have the key. The decryption key lives in the link only. All transfers also use TLS 1.3 in transit.
No file analysis
We never scan, analyze, or peek into your content.
Expiration control
Set exactly when your links expire. Files are automatically purged, no traces left behind.
Download tracking
Know when your files are accessed, by whom, and from where. Full visibility without compromising privacy.
Hosted on GDPR-compliant infrastructure. Data stored in the EU.
Get started
Share work that speaks for itself.
Built for professionals who need secure, reliable, and elegant file delivery.
No credit card required · 500GB free transfers