How to Turn Tapers on a Lathe | Offset Tailstock vs Taper Attachment

There are many ways to turn a taper on a manual lathe. Let's take a look at some of the most common ones.
Lets' talk tapers! What's the best way to machine them and make sure your results are consistent? In this video tutorial Derrick Hogan, CNC technology instructor at North Georgia Technical College, explains the math involved, talks about some of the problems that can arise when machining tapers, and finally, compares two popular methods used in taper turning: the offset tailstock method and the taper attachment method.
Which method do you think was the most accurate? Watch the video to find out!
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This video is part of our new video series: ” LEARNING FROM THE PROS”!
We are collaborating with educators from the most advanced technical schools around the country to provide you with tips and tricks, educational videos, and machining technology insights that will help you become a better machinist and learn something new about our beloved metalworking trade.
This project, presented is part of the North Georgia Technical College's tool&die program.
To learn more about the CNC machining program at North Georgia Technical College visit northgatech.ed...
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#machining #lathe #tapers

[@ypaulbrown]

Well done video Sir , it got me a little lost on the math, but in the end it made sense......Love that Triumph 2000 Colchester, and remember , the World Turns on Colchester Lathes.......love the Idea of the headstock center in the chuck as my old South Bend 13" does not have a spindle sleeve......you just solved a big issue for me......Cheers from an old geezer. in Orlando Florida, Paul

[@tates11]

For taper turning between centres a radiused type R centre drill should be used. This allows the centres to correctly align with the tilted centre drilled holes.

[@erikaguirre7638]

Thank you for sharing the knowledge.

[@gumarichard3791]

If l use tail stock off set for cutting a taper do l still use the center on the side of the tail stock

[@godfreytomlinson2282]

22:00 it could also be telling you the work piece is flexing in the middle too right? Perhaps it's best to measure 2 positions at equal distances from each centre to eliminate workpiece flex error.

[@emilylu3438]

Just I want!Thank you so so much!

[@CanFire9]

Thank you for posting this video - exactly the kind of information I was looking for.

[@andrerousseau5730]

Was a little disappointed you didn't explain the principles of the telescopic taper-turning attachment and it's advantages/disadvantages over the plain attachment you did describe. You also didn't mention the other disadvantage of the tailstock offset method, namely the greater propensity for 'springing', or 'bowing' when cutting long tapers on slender workpieces as the centre clamping forces are not co-axial. Also, the impossibility of using a travelling steady unless you cut the WHOLE taper in a second pass which would likely be mission impossible for the smaller hobby lathes. One final point, when cutting tapers between centres one of the dangers is that the workpiece centre hole rides on the shoulder which is why ball-nosed centres are often recommended.

[@luckydubeinrc5165]

Cutting tapers, D-d/L =taper