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  #11  
Old 10-27-2020, 09:09 AM
threepiece threepiece is offline
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I rough cut much of the shaft with a carbide cutter had from the scrap yard. This cutter has a shank diameter of 16mm but held with a 5/8” collet.

I also attached an end support bracket with a 3/8 screw into the previously threaded hole on the end. This was necessary to prevent the shaft from rotating when milling.

The extra length of the new shaft was to provide a heat sink to reduce the amount of heat conducted into the motor.
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With the amount of energy that is being consumed I expect most people on earth should be living in Utopia. And now this?

It started hitting the fan in the 1950's https://m.youtube.com/watch?v=nRnNDkHb0MU

A technologically advanced society would teach their children how to start a fire by rubbing two sticks together before teaching them how to use a lighter.

If you are not having fun then you are doing it wrong.
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  #12  
Old 10-27-2020, 09:14 AM
threepiece threepiece is offline
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The milling is done. The last .040” will be done with a stationary tool.
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With the amount of energy that is being consumed I expect most people on earth should be living in Utopia. And now this?

It started hitting the fan in the 1950's https://m.youtube.com/watch?v=nRnNDkHb0MU

A technologically advanced society would teach their children how to start a fire by rubbing two sticks together before teaching them how to use a lighter.

If you are not having fun then you are doing it wrong.
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  #13  
Old 10-27-2020, 09:17 AM
threepiece threepiece is offline
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But first I must cut the excess shaft. Nothing like a bit of exercise first thing in the morning. Can you guess where I got this hack saw from?
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With the amount of energy that is being consumed I expect most people on earth should be living in Utopia. And now this?

It started hitting the fan in the 1950's https://m.youtube.com/watch?v=nRnNDkHb0MU

A technologically advanced society would teach their children how to start a fire by rubbing two sticks together before teaching them how to use a lighter.

If you are not having fun then you are doing it wrong.
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  #14  
Old 10-27-2020, 09:20 AM
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toprecycler toprecycler is offline
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Get the hacksaw from the scrap yard? Or as I like to call it, the recycling yard.


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  #15  
Old 10-27-2020, 09:24 AM
threepiece threepiece is offline
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Checking the alignments before the turning operation. It was good to see almost no change.

I only have 3/4” of indicator travel so I made extra certain it was as close as I could get.

This is where I left it. I will now make the electrical circuit for the turning operation.
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With the amount of energy that is being consumed I expect most people on earth should be living in Utopia. And now this?

It started hitting the fan in the 1950's https://m.youtube.com/watch?v=nRnNDkHb0MU

A technologically advanced society would teach their children how to start a fire by rubbing two sticks together before teaching them how to use a lighter.

If you are not having fun then you are doing it wrong.
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  #16  
Old 10-27-2020, 11:43 AM
bunkclimber bunkclimber is offline
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Default shaft modification

instead of using a grinding wheel on the angle grinder, use a rubber backup pad and a 80grit sanding pad to get it close..for a much nicer surface finish..then full shaft rpm and a cloth sanding belt or strip pulled back and forth along the length by hand..FWIW
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  #17  
Old 10-28-2020, 02:21 PM
threepiece threepiece is offline
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Quote:
Originally Posted by bunkclimber View Post
instead of using a grinding wheel on the angle grinder, use a rubber backup pad and a 80grit sanding pad to get it close..for a much nicer surface finish..then full shaft rpm and a cloth sanding belt or strip pulled back and forth along the length by hand..FWIW
I’m assuming you either didn’t read the earlier posts or you misunderstand my objective. The sole reason I bought this motor is to see if a shaft could be added without disassembly using the milling machine for the process. Or maybe I misunderstand what you are referring to.

I get what you mean about the grinder. A hard wheel does not like to travel over uneven surfaces. A rubber or foam pad under a flexible grinding disk is better.
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With the amount of energy that is being consumed I expect most people on earth should be living in Utopia. And now this?

It started hitting the fan in the 1950's https://m.youtube.com/watch?v=nRnNDkHb0MU

A technologically advanced society would teach their children how to start a fire by rubbing two sticks together before teaching them how to use a lighter.

If you are not having fun then you are doing it wrong.
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  #18  
Old 10-28-2020, 08:57 PM
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Ironman Ironman is offline
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Quote:
Originally Posted by threepiece View Post
I’m assuming you either didn’t read the earlier posts or you misunderstand my objective. The sole reason I bought this motor is to see if a shaft could be added without disassembly using the milling machine for the process. .
Looks like you got'er done to me.
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  #19  
Old 10-29-2020, 12:27 PM
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Hi,
Looks good, I would not of done it that way, but...

I would of machined a step on the shaft stub and then a peice of steel to fit that, with just enough room to pre solder (tin?) those together...

Then would of drilled a 1/8" inch hole through the middle and peened a peice of drill rod to mechanically lock it.

That would of kept the heat down, protecting the bearings and the new shaft would be auto aligned, so to speak!

I worked Merchant Ships and sometimes you have to get creative to fix things, but that was the fun part to me.

At the end of the day, it is whatever gets you to the Dock!
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  #20  
Old 10-29-2020, 11:58 PM
threepiece threepiece is offline
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The turning worked out reasonably well. I used a 3/4” boring bar in the machine spindle. The backlash in the gears caused a bit of trouble.

I used a typical light switch to somewhat regulate the speed. After switching off, I advanced the tool as the motor slowed. It was strange operating the mill without it running, I repeatedly reached up to the spindle control switch till the very end.
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With the amount of energy that is being consumed I expect most people on earth should be living in Utopia. And now this?

It started hitting the fan in the 1950's https://m.youtube.com/watch?v=nRnNDkHb0MU

A technologically advanced society would teach their children how to start a fire by rubbing two sticks together before teaching them how to use a lighter.

If you are not having fun then you are doing it wrong.
Reply With Quote
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