Here's a clever one from Michael!
"All done and working fine. 3/4β puzzle pieces required modification to fit slightly larger string trimmer shaft, but the simple adjustable-height roller accessory setup for the Ego trimmer is saving my back! Turns in into sort of a mini-lawnmower."
Parts list:
3 3/4β Maker Pipe adjustable hinge connectors
3/4β EMT pipe
1 1/2β threaded steel rod
2 1/2β nylon locknuts
1 3/4β alloy lag shield (to reinforce EMT at the axle connection point)
2 short pieces of 1/2 pvc pipe for bushings
2 used 5/8β ID mower rollers left over from a repair job
2 1/2β fender washers
2 cotter pins