2016 POTD Thread Archive

are u making die holders ? that is funny Hbilly . I am sitting here making some round die holder/handles right now...mine are only hand held type, not for a lathe, wada coincidence ! They look pretty nice and the knurling too !
 
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Been running into roadblock after roadblock on my projects for the past two weeks.

Finally got into the shop this morning.

Started out turning an alignment pin for the dividing head.

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When setting up the dividing head you need to count a number of holes in the plate and then line up the arms. I always lose track of which hole I am lining up on. Not anymore. Count the holes, insert the pin, line up the arms, tighten the screw and I am done.

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ok not a project of the day, but still working on backing plate for the lathe I got. first one was bad as shown earlier, as it was not repeatable on mount. Have another to finish for me and maybe one for a friend as the ones that fit this spindle seem hard to find. 20161025_194417.jpg 20161025_194425.jpg 20161025_194453.jpg
 
Nothing complex, just made a hand tool for my draw bar . Piece of quarter inch I had and a 3/4 inch socket . Cut the quarter inch roughly to the size circle I wanted, welded it on then chucked it in the rotary table. Milled the outer rim concentric to the socket.
Decided to spruce it up a little, got some practice making bolt hole patterns. First time using my rotary table .
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Decided to put some grip around the rim.
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Smoothed it back out with sandpaper then scotch brite. Wish I had a lathe !
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I like the tool, but am loving the dogs expression! Boxer?
 
Managed to finish an indexing plate for my lathe today.

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Drilled three circles of holes, 16, 12 and 10. This should allow me to drill hole patterns of 2, 3, 4, 5, 6, 8, 10, 12 and 16. I doubt I will need more holes than this.

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I then turned the bore of the plate to match the lathe spindle.

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It has a nice snug fit and the spindle thread protector holds it in place very nicely.

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Next challenge is to figure out how to anchor the arm to hold the indexing pin.

It is nice to make progress in the shop instead of just thinking about it.
 
Decided on making a rotating welding table. Had an old flywheel laying around. Put some grooves in it for referencing work easily. Already has some nice holes for clamp downs, will probably add some more. Not sure if I want to motorized it yet so I'm leaving the ring gear just incase.

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So here is the answer to the tool question above
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The tool I call it a dog, is welded to one piece of steel (in this case a pour stop) and the second piece can be forced up tight by driving in a wedge. This is used where clamps are not able to fit or there is no place to clamp.

I have seen these used when 2 halves of large tanks are being joined. same as above only to bring used to line up the 2 sides of the weld joint.

Hope at least one person is able to use this idea or lean from it.
Mark

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This system is commonly used in ship building and repair.
 
Hman, have you bought any lottery tickets lately? Can you pick 6 numbers for me and send them to me in a private conversation? You are right on all accounts. As stated, this is the 3rd set in two months. I don't think they're breaking because they order complete sets. They obviously would be very useful on large pipe/hose fittings where a standard wrench would slip on the rusted nuts. These provide extra grip. I do the work for a local tool supplier who sells to the steel mill. I don't offer any warranty, and I doubt the tool supplier does either since the wrenches were special ordered to these specs.

As for the dividing head, I posted pics of the unit when I acquired it on page-254, #post-344992. I disassembled, degreased, stripped, de-rusted, wire brushed, power and hand scotch brightened, masked all clear areas, three coats of fast dry primer/paint mix, and removed all vestiges of masking tape. Had to make brazing repairs to three cracks in both handles, and machine a brake replacement collar. Wheeeoooo. All that was easy, just time consuming grunt work with stereo cranking out tunes in the garage till the early morning hours on Friday and Saturday. Masking and painting over the last three days. Two parts to finish braze tonight if I can find time. Now I have to figure out what goes in each hole during assembly! Pictures give clues but what part is first???

In my yeas working on ships we often cut a slot in the flogging spanners as we called them and yes sometimes we broke them. They are pretty hard ,but more tough than hard I think you'll find HSS will scratch them but it's also more brittle.
 
Finished my hand crank for cutting threads on the lathe.... to go along with the die holder above.

The mystery steel blank and an unfinished sketch of the desired outcome.

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A small drill hole and then lots of boring.
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I don't like using the parting tool so I came up with this to cut short pieces on the bandsaw. I've wanted something like this for a long time. Glad I finally got off my a$$ and made something.
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I really like the quality of cut this saw produces.
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Here is where I will mount the crank. I was originally going to take one of the nuts off but decided it would be better to just mount the crank on to the nut instead.
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and here it is all done. I must say it works better than expected. Very tight and easy to turn. Can't wait to use it.
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Another good day in the shop.

Finished the pin for my lathe indexer.

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Found a hole in the headstock, just under the spindle, that was the perfect size for a 3/8-16 thread. Of course I managed to thread the hole crooked, but I was still able to use it to anchor the indexing arm.

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This project is not going to win any beauty contests. I am just eyeballing things and trying to keep myself from over thinking it. So far so good.

Next step is to come up with a AXA drill jig.
 
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