Technical drawings are the preferred source of truth for our suppliers and we recommend to include them whenever possible.
To be able to add a technical drawing to your part, make sure you have already added at least one part to your cart.
We support a PDFs for part attachments as they are universally supported by all our suppliers. To upload one, click on 'Upload a technical drawing' in the 'Description and Attachments' area of your part. For certain part features a technical drawing is required, such as threaded holes and tighter tolerances in CNC machining.
Not sure how to get technical drawing right? We wrote an extensive article about preparing technical drawings for CNC machining to help you out.