(ET) Anyone have Quick Change Electric String Trimmer, Hedge Clipper, Chain Saw, mini-cultivator, powered by Elec-Trak ?

[john <johnreinhard rochester rr com>]

Hi Group,

Trying to make Elec-trak powered yard tools:

I have an old 2 cycle engine (not worth fixing, EXTREMELY LOUD, when it 
ran) powered Troy-Bilt String Trimmer, which has a quick release coupler 
half way down the shaft, and allows other implements to be powered by 
same head.

Also have a 36 DC PM motor (500W maybe) from old kids electric scooter / 
mini bike type thing.

The motor weighs about the same as complete engine (especially when fuel 
tank full).

Similar to my Elec-Trak Earth Auger project, I think I just need motor 
mount adapter plate & shaft coupler.

(shaft coupler tricky, because clutch was mounted to engine & 1/4" shaft 
in pipe slid into that.  Also, clutch had sintered bronze bushing, which 
spun on engine shaft.  Electric motor has small sprocket, attached by a 
nut, and located by 2 flats on the shaft. Unfortunately, 2 ADDITIONAL 
flats on the motor shaft, designed for holding the shaft while 
tightening/ loosening the nut, are NOT aligned with the sprocket 
locating flats ! I am thinking I could drill and split pin the couple to 
the motor, but don't want to drill the shaft if it weakens it)

Considering 36VDC variable speed control (could use the speed control 
from the scooter !)

No clutch.

Anyone have anything similar ?

Any suggestions ?

John