Slipping Gear

Ok I have two gears that slip on the Stepper shaft. I was told to try Polyurethane glue. I was wondering if anyone had tried this? and if so what kind I was thinking of Gorilla Glue. Also, has anyone tried to flatten one side of the shaft to make the screw set better? If so how did you do it? I am just happy that I got it up and running today.

Hi, I think using glue sounds a bit too permanent. I believe most people (myself included) file the motor spindle flat on one side. Have a look at the 4th picture in this sequence where Adrian does exactly that for an extruder motor... [reprap.org]

Be sure to use something to stop metal filings from dropping into the motor itself - blu-tack or silly putty, or something similar.

Hope that helps.

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garyhodgson.com/reprap | reprap.development-tracker.info | thingtracker.net

Sweet that worked perfectly. I love the silly putty idea. I knew there was a reason I kept an egg of that on my desk.

I used loctite - the high temp one. before I did I grinded the motor shaft a bit. NO problems after that.

See here: [omemon.wordpress.com]