Jedi Training Droid - D-4S series
During the Clone Wars most of the Jedi were acting as generals for the GAR leaving many younglings needing training, enter the D-4S series droid. Designed primarily as a lightsaber combat training droid they could also assist young ones on simple Force principles, Jedi history, crafting lightsabers and such.
See the second part here.
See my Work-in-Progress Blog here.
You can find the other half of this request here.
Cool artwork Stu. Love the droid design.