Here are a couple of 3D print designs I recently developed in C3D and shared at Thingiverse.
Phone and Tablet Desktop Stand with Adjustable Viewing Angle
thingiverse.com/thing:3800715
Peak Music Stand Tablet converter
thingiverse.com/thing:3810264
Phone and Tablet Desktop Stand with Adjustable Viewing Angle
thingiverse.com/thing:3800715
Peak Music Stand Tablet converter
thingiverse.com/thing:3810264