High speed cutoff

Old Everything Tech

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I have had several lathes over the years.
My first: A 19" Springfield.
It was during those years I offered to turn some airplane brake rotors for a buddy.
Well, I found that I was ill prepared to turn them. They were so hard.
I needed a grinder that I did not have in the shop.
I was left to back up and withdraw my offer to turn them.
On one of the last lathes, I had I made a high-speed cutoff for it.
I have forgotten just how I did it, but here I am again.
I am going to put up some pictures of just the beginning of this project.
This HS cutoff can be bought for about $40 and I have had it sitting for some time now.
Bear in mind some of my slot cutting lacks professional work, but for now it is just a start.
And too, I am in my eighties.
My plans are to just quick attach it to the bed way and not to the carriage.
 

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I have had several lathes over the years.
My first: A 19" Springfield.
It was during those years I offered to turn some airplane brake rotors for a buddy.
Well, I found that I was ill prepared to turn them. They were so hard.
I needed a grinder that I did not have in the shop.
I was left to back up and withdraw my offer to turn them.
On one of the last lathes, I had I made a high-speed cutoff for it.
I have forgotten just how I did it, but here I am again.
I am going to put up some pictures of just the beginning of this project.
This HS cutoff can be bought for about $40 and I have had it sitting for some time now.
Bear in mind some of my slot cutting lacks professional work, but for now it is just a start.
And too, I am in my eighties.
My plans are to just quick attach it to the bed way and not to the carriage.
how do you plan to deal with the grit on your ways?
 
The cut is with the lathe in reverse.
Most of the dust hits the backsplash or the guard.
I remade the bar with aluminum and drilled many cross holes.
I used a 1/2-20 bolt down thru the bed ways to mount the saw.
I am having trouble with the travel distance on the saw.
I may have to bend the crossbar downward.
I am not where I want to be yet, and I may not it get it to work right.
 
You can get a fine pitch carbide saw blade and only make metal chips

I've set up and done that before. Hmm, I wonder if I could cram that into a tool holder....

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As of now I am having difficulties getting the right angle of attack.
This is obviously not going to be a project that I can just throw together.
The bought device is hinged and is too straight down.
It needs to be a slow angle of attack.
I am going to have to rethink this.
OK
So, I ground off the stop shown in vid 1, and removed the spring.
Then I tightened the tension screws on the cut off mount.
Then set it up.
You can see that it will work as planned.
 

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As of now I am having difficulties getting the right angle of attack.
This is obviously not going to be a project that I can just throw together.
The bought device is hinged and is too straight down.
It needs to be a slow angle of attack.
I am going to have to rethink this.
So, I ground off the stop shown in vid 1, and removed the spring.
Then I tightened the tension screws on the cut off mount.
Then set it up.
You can see that it will work as planned.
I see where your headed with this. Interesting
 
There is one other plus to this setup.
I could set it at any angle on the bed ways and use it to grind an angle finish.
By adjusting the two tension screws on the hinge I can lock it into a set position for grinding.
Then there is an extended lip on the lower back that with some thought could have an adjustment screw mounted on it for a fine feed.
I gotta give that some thought.
After thought:
I wish I had mounted it on the compound so I could use it to grind a finish on a piece. Hummmm...
 
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Here is a source for the holder:

Angle Grinder Stand Angle Grinder Holder Metal Cutting Machine Aluminum body for 100/115/125mm angle grinder on Amazon​

 
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