I’m not sure if you can view the message that was deleted but I’ll try and summarise it.
The material that we’re looking at using is based on PLA and is a mix to create a less brittle 3D printable biodegradable polymer, and so, this material will be primarily focused on replacing the PLA sections. We might test this for the gears but it seems unlikely to be suitable from what you’ve said. To this end, we might substitute the gears for another material that might be better suited than ABS.
For the weight limit of the arm, is this due to the torque of the motors or the failure of the gears?