Turning down small diameters

[EmilioG]

I've always wondered how small diameters of round stock rods were turned down without a taper or flex.
I found this great example of technique.

http://modelenginenews.org/techniques/stepturn.html

Having a good lathe with good gibs and ways, etc,.. is very important. When I finally find a good lathe, I will be sure to check it for any severe wear and tear. Enjoy.

 

[mikey]

Step turning works well when you need a small diameter; been using this technique for many years now. You would be surprised how small a shaft you can turn this way. Sharp tools are a must, preferably HSS.

 

[rowbare]

Frank Ford made a nice toolpost mounted follow rest. http://www.frets.com/HomeShopTech/Tooling/MiniFollower/minifollower.html

A box tool works well too.

bob

 

[wildo]

You might think this is unrelated, but I think it's totally along the same lines. Before I started getting into machining, I did a fair amount of wood turning. I prefer very thin sided bowls- I think they highlight the craft better than thick sides. But chatter is a real issue! Frank shows a method in this video that I wish I would have known back when I cared about wood turning. Certainly step turning in machining is pretty much the same idea. The video demonstrates nicely.

 

[wildo]

Frank Ford made a nice toolpost mounted follow rest. http://www.frets.com/HomeShopTech/Tooling/MiniFollower/minifollower.html

A box tool works well too.

bob

Wow- that is very cool!! I have a follow rest, but it's huge comparatively speaking!

 

[chips&more]

Step turning is my method of choice. Mainly because it does not require any other tooling, just a technique...Dave

 

[Zathros]

Same for me, I work with easy bending thin materials make axles for bycycles bolts and other Very small parts from 6 and 7000 series aluminium stainless steel and titanium. Small steps like 2/100 mm are needed even with à guiderhelp.
I also make small parts for any machine myself. Or for astronomical telescopes for à example. So small steps is very important with those materials.


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