Another use for lapping compound

[David Morrow]

I was taking my first try at lapping a cylinder today; the power cylinder for a Coss Horizontal Stirling. As warned, the compound tends to be a bit messy and gets on things it shouldn't. I cleaned it up with the rag and had an idea. I had previously rough finished the outside of the cylinder with 280 grit wet/dry sand paper in the lathe. So, while the cylinder was still in the chuck, I applied the compound and rag to the outside. I got a beautiful shiny / mat finish in just a matter of a minute or so.

 

[gr8life]

Nice finish, what grit were you using?
thanks
ed

 

[David Morrow]

It's 800 grit - extra fine Loctite Clover

 

[gr8life]

Thanks, sorry it took me so long to get back.