The ARM Pro is a stepper motor driven robotic arm that can support a 3D extruder, Laser cutter, grippers, magnetic actuators, camera etc...
This project adds a small USB powered drill tot he tool-set for this platform.
The drill was 4$ from Geek. It has a 2.5 cm diameter and comes with a small chuck.
A threaded insert is press fit into the stem holds the drill to the ARM.
It takes less than 20 seconded to manually change out the 3D printed drill holder for a different tool.
I used a threaded press fit 6mm M4 insert (Geek) but you can make the hole 3.6mm and manually thread the stem with the retention bolt.
It can be turned on with an inline switch or control with Blockly using a relay set that attaches to the UARM Pro.
You can use simple code in Blockly to define a Peck drilling cycle.
The desin was done in TrueSpace and took about 10 minutes. The part printed in about 30 minutes. ART TO PART TIME (ATPT) was less than 1 hour.