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Need some help from the auto-rotating monitor experts...

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kahlid74:

Thanks Top Jimmy.  My Axel/Shaft is 3/4" diameter so I need ID bore to be 3/4".

So if I move to gears where is the best place to pick up an 8mm gear for the motor and a 3/4" gear for the shaft?

Also, what drill bit would I use to bore a 3/4" hold in a 5/8" or 1/2" Die cast hub/Floor Flange?  I'm assuming I'll have to drill it since no one seems to make one of 3/4" ID bore.

TopJimmyCooks:

Here's a flange for a 3/4 OD rod. 

http://www.mcmaster.com/#structural-framing-floor-flanges/=gr9z9p

on the gears, those are large sizes so they'll be pricey.  Boston gear or mcmaster carr. 

kahlid74:


--- Quote from: TopJimmyCooks on March 21, 2012, 06:56:31 am ---Here's a flange for a 3/4 OD rod.  

http://www.mcmaster.com/#structural-framing-floor-flanges/=gr9z9p

on the gears, those are large sizes so they'll be pricey.  Boston gear or mcmaster carr.  

--- End quote ---

Okay hot Giggity Giggity that site is the beeznees.  I like to think I've got pretty good Internet Search skills but how in the world did I miss this site?  So They've got my floor flange, kicking.  They also have 5/16" pulleys.  So if I roll the pulleys the next question comes down to creating a tension-er for the belt system.  Where would I even start with this?  I'm going to do some searching to see if I can find some example but any Suggestions you guys have would be awesome.

What about this tensioner - http://www.grainger.com/Grainger/FENNER-DRIVES-Selfadjusting-tensioner-2ZRT8

TopJimmyCooks:

Think more like sheet metal and make it yourself.  look at the alternator bracket on your car for ideas. 

kahlid74:


--- Quote from: TopJimmyCooks on March 21, 2012, 11:58:56 am ---Think more like sheet metal and make it yourself.  look at the alternator bracket on your car for ideas. 

--- End quote ---

I don't think that will work because I'm using the power twist belt.  It's not flat on the bottom of the belt but instead jutted.  So I would be worried about the outgoing jut hitting an alternator bracket.  Also, I just don't have a workshop where I can easily work with Sheet metal.

I'll go with the tensioner I posted before and we'll see how it goes.

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