pytr108
Maceo, KY
38, joined Aug. 2013
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stargazzer
Creighton, NE
68, joined Feb. 2007
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Something I need to learn yet
I recently installed a Barns laith from 1890 in my shop. But still need to take the time to learn how to use it, maybe [hopeing] i will take the time this winter to do so?? But for now I have to many other projects to do.
My Gole is to learn along with my 12 year old grandson, thinking learning the basics would be a good thing for him much more than me but it is something I always wished I could do. Had two guys that do know their stuff look it over and both said they would use it so now we just need to learn, how easy or hard for us to do that is still a good question in my mind.
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stargazzer
Creighton, NE
68, joined Feb. 2007
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Just to add the fact that their is a picture of it in my profile pictures.
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pytr108
Maceo, KY
38, joined Aug. 2013
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What I will tell you is to go easy. Definitely research on how to make a bit or have one of your buddies show you the basics. I would have them start you off with a pointed hss bit. Also if there are vibrations then you are doing something wrong. If the metal is singing then you either have the bit to low and it is climbing or the bit is dull.
Also play with the feeds and speeds.
Starting your grandson out now is the best thing you can do for him. It is a skill that he will use the rest of his life.
If you have any questions don't hesitate to ask. I will either answer it myself or I will put you in contact with the person that does.
Remember go slow. Don't just jump into it. You WILL break something.
Please let me know of your progress.
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calcal57
Caledonia, MS
59, joined Jan. 2012
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This is what I would recommend. Go to a local trade school and purchase the book they would use to train machinist. I have an old one called the technology of machine tools. They may not have that one but something similar.
Buy a dial indicator from a pawn shop or some where like MSC.
if you have a three jaw chuck with a scroll plate indicating the part in will not be a problem. With a four jaw a little bit more involved. Number your jaws 0, 90, 180, & 270. Loosen on the low side tighten on the high side. Do jaws 0 & 180 first. Get them close then do jaws 90 & 270. Repeat until the part is running say within .010.
You will also need a center drill or two. Using a center finder and a 12" scale make three scribed lines on one end of the workpiece. Center punch and drill with a hand drill using the center drill. U can buy center drills from msc as well. The resulting hole is where the center on the tail stock goes. Live centers being far superior to "dead" centers.
Speeds and feeds. .012 is a all around good starting feed. This means the tool advances twelve thousandths for each revolution of the chuck. Sorry but its been awhile since I made chips so speeds you will have to experiment with. Slower being better than fast. White chips being better than blue ones.
I recommend using a 3/8" carbide braised on tool. Position the tool in the tool holder and using a six inch scale between the tool and workpiece place the cutting tool just below center. The scale will lean one way or another indicating when the tool is below center. You will see what I mean when you try it. You can buy these at msc as well. Mostly you will need right hand cutting tools.
You can use HSS for forming radius tools and specialty tools as your skills progress.
Make sure you use handles on any files u use while filing on a lathe. Wear eye protection.
Maybe this will get you going in the right direction. Feel free to contact me if I can be of assistance.
Thanks Calvin.
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