What did you do today?

[Tundra Twin Track]

[QUOTE=wierdscience;1224204]More lathe repair/mods today.The orginal T-slot the topslide mounts too was made for M12 bolts.These were a crudely forged T-bolt,pretty soft material,the threads were nearly gone on the originals and the heads didn't fit the slot too well.The bottom edge of the slot was pretty rough as the rough forged finsh of the T-bolt heads telegraphed into the cast and left it ragged.
I was going to make new bolts from the start,but decided to kill two birds with one stone and widen the T-slot to accept 1/2" bolts which would also get rid of the rough edges.I set the cross slide body up in the Bridgeport and used a freehand gound bit in the boring head to machine .025" off each side to achieve a finished slot width of .520"

Good work weird,what dia. is the T slot on cross slide.

[wierdscience]

It's about 9-1/2" to the centerline.

[PStechPaul]

I got into an old (1944) movie starring Cary Grant and Jane Wyatt, "None but the Lonely Heart", on TCM, and then they announced that tomorrow they were going to show "Cool Hand Luke". They showed a sultry clip featuring the voluptuous girl washing a car while the prisoners in the road gang ogled her. She is Joy Harmon, and now she and some of her family bake cookies and cakes in her shop in Burbank, "Aunt Joy's Cakes". Her website has a short video, "Cheesecake to Cheesecake", that shows that famous scene.

I also found a rather big limb that fell from my giant sycamore tree a few days ago after a recent ice storm and wind:



It came from the sky!


I've put a pretty good dent in the pile of limbs and logs from last summer's tree work:

[Willy]

Now that I've had some sleep and can focus again, good thinkin on opening up the T-slot. At first it looked like a wobbly setup with so much tool bit sticking out, but it is just a small bite and cast machines so darn nice I take it that it wasn't an issue.

I love that pic of the T-bolts and the toolpost nuts, looks like catalog cover material. I love the look of freshly machined metal in the white.
How did you make the nuts, the old fashioned way? They look too big to have been made with a 5C collet block the way I usually do smaller ones although I'm sure it can be done.

More lathe repair/mods today.The orginal T-slot the topslide mounts too was made for M12 bolts.These were a crudely forged T-bolt,pretty soft material,the threads were nearly gone on the originals and the heads didn't fit the slot too well.The bottom edge of the slot was pretty rough as the rough forged finsh of the T-bolt heads telegraphed into the cast and left it ragged.
I was going to make new bolts from the start,but decided to kill two birds with one stone and widen the T-slot to accept 1/2" bolts which would also get rid of the rough edges.I set the cross slide body up in the Bridgeport and used a freehand gound bit in the boring head to machine .025" off each side to achieve a finished slot width of .520"


Then I machined up four new T-bolts from some SAE 1045 and a couple extended height toolpost nuts from the drops.Going to heat treat these and temper them in the morning,these are much improved over the old ones.

[RB211]

Here's a hint

[john hobdeclipe]

Here's a hint

Kinda looks like Dayton, OH to me.

[markx]

Electrochemical reactor built from PE, PTFE, and titanium combination with some traces of the platinum group elements here and there....I was utterly bored with regular work:

[RB211]

Kinda looks like Dayton, OH to me.

Yep, fly out to Japan tomorrow morning

[Sparky_NY]

Kinda looks like Dayton, OH to me.

Yup, USAF museum, been there many times.

[wtrueman]

I finally went out to the shop, started the wood stove and turfed out about two hundred plastic pots that I have been saving probably for up to ten years. Burnt holes in new seed pots and generally did some cleanup. Found some treasures that I lost a while ago. Got the shop temperature up to 58 degrees F.

[wierdscience]

Now that I've had some sleep and can focus again, good thinkin on opening up the T-slot. At first it looked like a wobbly setup with so much tool bit sticking out, but it is just a small bite and cast machines so darn nice I take it that it wasn't an issue.

I love that pic of the T-bolts and the toolpost nuts, looks like catalog cover material. I love the look of freshly machined metal in the white.
How did you make the nuts, the old fashioned way? They look too big to have been made with a 5C collet block the way I usually do smaller ones although I'm sure it can be done.

Ya,the cast didn't give any trouble,only took .010" on a pass.

The nuts I used last year's b-day present to myself,a 6" Vertex rotary table witha 6" three jaw mounted on.Didn't get to heat treat anything today,too much daily business nonsense got in the way

[Cenedd]

Did a direct comparison of an HSSCo8 roughing endmill (fine tooth) Vs a carbide finishing endmill (non-roughing) yesterday. I'm definitely a convert. Milling the edge off 10mm hot-rolled steel plate (scale already flycut off) and needed to take it back past the slot I'd previously cut in the edge to clamp it. Both 10mm but it was starting to chatter with the carbide (which, to be fair had a nick on one flute) at about 0.4mm DoC with 10mm engagement. Rougher was still going at 0.9mm DoC and I reckon it would have do e 1mm without complaining too much. Carbide run at 1200rpm and HSSCo at 750rpm. Added bonus was that it sort of cross-cut the chips so instead of long, sharp things being thrown at me by the 1200rpm carbide, I got a nice little pile of granules.

Came up with a complicated way of getting my mill exactly trammed. Fly cut a sheet in the X-axis. Turn it exactly 180 degrees. Put another sheet on top. Fly cut in the Y axis. Too piece should exactly take out the errors in the (very rough) milling of the bottom of my column. Went to some lengths modeling it to make sure it would work. Then realised I'd need two sheets of ground flat stock to ensure I had a flat surface to start with, looked up the price.....and just shoved another shim under one corner

[softtail]

Getting ready for Doall to show up... made some rigging wedges. Crated dimensions are significantly taller than door opening, but machine itself should fit. We shall see.

[3 Phase Lightbulb]

Just watched the Lego 2 movie at the Secaucus Kerasotes Showplace 14 in NJ with my son. Nice theater with great large recliner seating.

[true temper]

Burnt a circle out of 1/2” plate.
Going to mount a chuck on my rotary table didn’t have my torch set quite right but it will be okay


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