2015 POTD Thread Archive

[chevydyl]

Man Franko good luck with that

 

[RJSakowski]

View attachment 117431

Lookin' good Chevy!

 

[RJSakowski]

Franko, that's a bit too close for comfort.

 

[Franko]

When the storm was still south of Downtown, the funnel was about 1/4 mile wide and making a bee line straight for my neighborhood. It was moving pretty fast, about 30 mph. It got unorganized on it sway further north, but powered up again and split in half. The worse parts went west and east of me and the one that went east developed that wedge tornado.

Lots of houses got torn up and so far about 5 people have been found killed.

 

[T Bredehoft]

I think I'd be voiding more than warranties.....

 

[tertiaryjim]

Today, I completed a set of dobs for a friend. 1/4" dia and 2" long brass.
Have the lathe apart for repair and had to do all the work on the mill.

Last week.......
The lathe headstock and base mounting surfaces weren't flat so I had shimmed them to get solid contact and align the headstock to the ways.
As the lathe was apart to replace the bearings anyway I wanted to see if I could scrape those surfaces in so shims weren't needed.
To " see " what the contact was I poured the blue on till it started to run and set the headstock back in place.
That showed about 1/2"square total contact on three corners.
These pictures show the pattern after about 6 hogging passes and a couple of light ones.


In all I removed about .009" and got solid contact down each side. Would've had to remove another 5 to 6 mills for solid contact and since the tailstock also has to be adjusted I decided to stop there.
Am awaiting a seal so I can assemble it and learn if it's aligned correctly.

 

[chevydyl]

Just waiting on my bar of 7075 to make the body, it's apparent to me that alignment will have to be done in two planes, a jack screw type setting for axial runout and 4 set screw for radial. I may have to remake the spider...

 

[extropic]

View attachment 117435
Today, I completed a set of dobs for a friend. 1/4" dia and 2" long brass.
Have the lathe apart for repair and had to do all the work on the mill.

I'm not familiar with the term "dobs" and a Google search didn't help. What is a dob used for?

 

[extropic]

Franko,
Glad to read that the worst of it missed you. Nature can be a real Mother.

 

[tertiaryjim]

extropic
Jems or stones are mounted to a dob. The dob then fits into a machine thats used to cut the facets.