Todays Project - What did you do today?

[PixMan]

Today's project, took me about 40 minutes start to finish including vacuuming up all the chips from this and other jobs done in the past couple of weeks by both me and my dad.

The holders started out as the same size shanks, 20mm (.7874"), though they hold two different widths of inserts. I put the wider one in the photos for reference. The narrow (2mm) width one needed to be reduced to a 5/8" square shank to fit into my friend Jennifer's BXA QCTP on her old 13" South Bend lathe. I first milled it down on the bottom to .627" using my dad's Bridgeport and a 4-insert 45º Widia face mill. Next, I finish ground it on the surface grinder to final size of .625", exactly. Back to the mill for the back side rough milling, then finish grind. I finally got to use one of the nice little magnetic parallels I'd bought last year.

Sorry for the fuzzy picture. I was using a hand-held compact Canon camera and it seemed to be unable to focus on the fine grind finish.




Nothing much to brag about, but I really don't have much time these days to play in the shop. I'd rather be out riding my motorbike!