An interesting small parts mandrel for the lathe......

[talvare]

Several years ago I was perusing eBay looking for some lathe mandrels and came upon the one shown in the attached photo. It's about 3" diameter. It was up for sale with a starting bid of $10. I was the only bidder. I'm pretty sure it must have cost the seller that much to ship it.

Ted

 

[JimDawson]

I want one, or several

 

[C-Bag]

I want one, or several

Me too! I could have used that today as a matter of fact!

 

[DavidR8]

Pardon my inexperience, does that get run between centres with a faceplate and a dog?


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[darkzero]

Pardon my inexperience, does that get run between centres with a faceplate and a dog?


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Yes, more specifically a drive plate. But these days it looks like no one really makes drive plates anymore so people just use faceplates.

 

[C-Bag]

In the vid he had the solid end clamped in the 3jaw and the other end in a live center.

 

[darkzero]

Could certainly be used that way if it runs true but I would run it between centers. If it's a mandrel & made by zee Germans I'm sure it does run true. Brino could tell us if it has centers on both ends.

 

[hman]

Both ends have centres:View attachment 309057

View attachment 309058

...and the big end has a flat for driving.

 

[darkzero]

 

[C-Bag]

So I get how (in theory) how to make everything but the slots in the cones. Is that done like with a horizontal mill cutter then cut the taper and finish off grinding on a expanding arbor....inquiring minds want to know? Them German tool makers fascinate me.