Today was a busy day. We're back at work for 3 days a week, so today is the start of my super long weekend ....
It started off with the Ms. fleeing the country this morning (international work/conference), and then a phone call to go into work .... Great ...
Work was quick, and there were some postings on The PortraitNovel of some "estate" tool sales. I found 2 of them, and nothing worthy of my few peso's and blocks drive .. bummer #3.
But, I have been selling of some equipment on the Kijiji the past week, and the last one was picked up this afternoon.
I filled up the SUV with another load destined for the new place and headed over. Setting up the new 'dive shed', and decided that I needed to use the lathe to 'fix' a part that I made back in the spring for my rebreather.
When I made the aluminum post, I didn't know how long to make it, so I made it 1.5" in length. That is too long I found out, as I catch my light cord underwater constantly with it!
I went and put on the 3jaw onto the Sherline, and realized, yup, I can't see much in the garage with 2 LED overhead bulbs... Somewhere in a box I was smart enough to bring over a bunch of random lights, and set to mount one strip light in such a way to illuminate the working area of the lathe.
First thing that I wanted to do was to turn a relief shoulder for the screw, to see if it would sit better ... *Spoiler* it didn't in the end. Most likely the hole wasn't bottom tapped. I might go back and remove .100 +/-.100" or so to get it to seat nicer.
I turned the part around in the chuck, and put the parting tool on.
I like to register a .010" shim stock between the work and the tool to find the edge, move the tool out, and over the .010 and zero out the dials. I put another tool post on to register the DI (I hope to make a way mounted adapter for the DI ... no need to eyeball the alignment).
I moved over the offending .620" to make the unscrewed length to be .750". Parting went well ... until it didn't. Can you see what happened?
At some point since I last used the tool, the blade slid down (it is on an angle), and was undercutting. With all the gunk on the tool and post, I couldn't slide it easily into position without raking the post off, loosing the registration and whereabouts in space it is.
So out came the hacksaw for the last little bit.
Previously, to cut the ball end, I rotated the headstock (there isn't a compound on this lathe) and roughed in a radius with multiple passes at various angles. I wanted to try a new method (to me).
On my tablet (currently my shop music device), I downloaded a cad program (GNA Cad) and have been using this for a few projects when I want to accurately figure out some dimensions... This time, I drew a .249" circle (diameter of the part), and made measurements every .010" along the radius to figure out the depth of cut.
In hind sight, with this program (which I'm still fairly slow on ..), I should have gotten rid of the decimal, as the unit resolution is set to 0.0000", but the dimensions were 0.00" (I couldn't find the setting). I might just have to find a cheap monitor and windows XP computer to put ACAD2000 on in the shop for quick dimensions...
Anyways, this is what it produced on the lathe.
A little file work, and finishing off with 220g sandpaper, this was the final result ... Probably about the same amount of time as unlocking and rotating the headstock, but I didn't loose my alignment this way.
And here it is, back in the DSV (Dive/Surface Valve)
After finishing this quick project, I added some more lights underneath as I found that the one light didn't light up any indicator if it was mounted behind the lathe, so 2 more were added.
And here is what the base is looking like ... a few shelves, from the top, some measurement tools, below that, setup/cutting tooling, and on the bottom, some stock and misc tooling.
..... It needs a lot of work still, but is slowly getting there as the shop progresses into something usable.
Brad