People with some experience with low-cost robot arm with 9G servo may already know that they comes with large random error (~3 to 4 mm as least). So the pick and place environment need to be carefully controlled and optimized to ensure every place is success.
It is difficult to explain all set-up in text.
Let's show how it work by video:
Black Magic involved
- To ensure a successful Place, a funnel shaped base was included to the Wire Hold in order to increase the tolerance of error.
- To ensure a successful and consistent Pick, The top and base of Wire Hold is designed so that it would slide into the middle of the claw when force was applied.
Open-source Firmware available here:
Additional Material Required
- Sewing machine bobbin placed in the middle of wire holder
- M3 screws and M3 washer for holding the bottom and top of wire holder
- 3mm plastic rod for the base.