[Cory]

Originally Posted by apalrd

I still believe the cause of failure is improper material selection or component design more than anything else, not improper use of the gearbox (it should be able to handle this). 7075 is a significantly weaker material, and without changes to the dog design (e.g. increasing thickness, additional hardening, etc.) the overall strength is significantly lower vs stainless steel.

7075 is not the problem. We have used it or 7068 since 2007 with zero failures.

Most common grades of stainless are actually substantially weaker than 7075, unless AM is using a prehard grade (13-8, 15-5, 17-4) or 410/416