2013 POTD Thread Archive

[Ray C]

Well, another project I started got put on hold because my internal groovers won't hold an insert for the size groove I want. Sooo, off came the chuck with piece intact, threw on a different chuck and started a different project. Here's a grinder hub for the B&S #2. It will have some special features that I'll show later. I decided to make it from two pieces of 1045. The collar and disk were deeply chamfered (almost 1/4") for solid TIG and weld-up. Oh man, I'm covered in 6's and blisters.

BTW: No, I didn't TIG weld it in the vise... It was 750 F when I was done welding it so, clamping in the vise makes it cool off faster. -And yes, I used ER80S because of the high carbon 1045.

Ray

 

[Tony Wells]

All I did was set up and start cutting a ring gear for the speed reducer I am building.

 

[cbtrek]

After eating to much, I cleaned up my small shop after restoring my Lewis Horizontal Mill. Can't find anything until I return it to were it should be.

 

[Jimbo]

I worked on a glass cutting fixture for my sister to cut glass for picture frames, then I fixed my tap adapter to use on the fixture. Some general clean up and machine maintenance.

 

[marlow3a]

I took apart my half universal dividing head. The worm and gears run in an oil bath. When I sealed it last time I used too much sealant and the sealant got where it shouldn't go. I couldn't tilt it anymore. This evening I needed it for another project so I had to take it apart and fix it. Luckily I had used Loctite 573, which has low breaking power. Still it was quite a job and took most of the evening. That'll teach me to be more careful with sealant.

 

[Snag_one]

Well , it was actually yesterday , but I picked up my trailer full of machine tools , got them to their new home and got the lathe set up but not level yet . Got the base and column of my RF45 clone on it's base , head will be mounted and <hopefully> trammed in today . I was going to start construction on the foundry area to day , but it's raining here . I guess I'll finish up the electrical instead .
Snag

 

[Tony Wells]

Snag...OT, but wanted to let you know I love the area you live in. Family and I regularly take a fall foliage pilgrimage up to that area. Stayed in your town many times.

 

[Todd]

I use the FLT if i remember the code right. they are the stand up style with only two cutting edges though. although they only have 2 edges i rarely have to toss one unless i crashed it into the end of a blind hole. the size i use for the 1/2" bars is not thread specific, have cut anywhere from 32 - 12 tpi with it so far and every thead has come out as intended. they are not the cheapest of an insert something like 10 bucks a peice but they do the job nicely especialy if you are threading with some speed on the spindle

Not much... Made that little mag-base holder for the cheapo HF swivel vise -which took all of 20-30 minutes. A piece of schedule 40 pipe welded to a scrap of plate. Then, I used it to hold that HHS bit and grind a perfect 60 degree threading tip.

Shop-related, I spent 2+ hours on CAD and another 2 hours searching the world over for some internal threading bars. And speaking of that, does anyone have thought/opinions on what insert style they like for internal threading? I was thinking about the IR-type (3 points) but noticed the inserts are thread-pitch specific. Are any of them thread-pitch agnostic?


Ray
View attachment 50978

 

[Ray C]

Had a busy day with some paperwork issues but managed to turn-down the shaft part of the grinder hub. I designed the thing and wanted the shaft specs at 1.250 +0, -0.0005. Took three passes to get in the ballpark, took 15 thou off for the last pass plus a spring pass and the final dims came out 1.2499. Zero variance over the 1.875" length. -Really nice to have a lathe that does what you want it to (and knowing it can do it because it was aligned properly).

 

[Daver]

Well, this was actually 2 days ago.

Friend brought her bike to me to install a stereo. One of the brackets broke. The repair steps are pictured.






Was my first impromptu use of my micro mill, used the lathe (HF7X10) to make some spacers for another part of the install too!
A few months ago, this would have been a new part ordered and waiting for shipping. Was a big internal ego boost to look at it and
realise... Hey, I can fix that!