Thread: Discussion Another onboard starter thread
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Old Dec 06, 2012, 04:27 PM
chemnut842 is offline
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United States, MD, North East
Joined Apr 2011
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Another onboard starter thread

I have a DLE 20 that is not being used with a prop, but as a generator for a silly hobby project (tinkering you know...).

I searched through this forum and found a few threads about on-board starters but did not want to hijack any of them.

I made the starter with a 2 stage gearbox and the flywheel gear is on a sprag. The motor turns over great, maybe 500 - 1k rpm (I can make it faster if I need to).

The crankshaft of the DLE 20 is directly coupled to a big BL motor for the generator; that BL motor weighs about 500 grams so I think it has plenty of mass.

The problem is that the motor keeps backfiring and trashing my starter gears.

What on earth can I do to prevent this? Anybody with experience in this please help.

I thought maybe getting the motor turning really fast and then switching on the ignition?

Maybe some sort of clutch? I will post a pic and/or a vid of the starter soon. Thx,

- Joe

Video:

Starter (0 min 11 sec)
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