I bought some new magsafe chargers only to realize they slightly changed the size of the new ones: 1mm smaller diameter and 1mm thinner.
The result of this is that it no longer fits snug into the magsafe desk clamp and the phone pulls it out when you try to remove it.
So i spent hours rescaling and remodeling the model i was using so that everything fit snug again.
Worked great!
My next challenge is to design a custom apple watch charger mount that fits perfectly onto my desk riser without needing a clamp.