For 3D drawing, we would prefer in STEP, IGS , STP, SLDPRT or X_T format.
For 2D drawing, we would prefer there are tolerances with dimensions if possible.
Please put all files into one folder and compress the folder into a ZIP or RAP file before uploading(Max 10MB).
Larger attachments can take a few minutes to transfer depending on your local internet speed.
For attachments over 10MB, please send it firstname.lastname@example.org