The Home Machinist!

Don't neglect to consider the sharp corner that an annular cutter would leave at the base of the bore if used in the context of this thread.

A boring bar can be ground to leave a suitable radius to help eliminate stress risers.

A friend took his boy's out and shot a hog with a .308 and had them all examine it to get the point across that firearms aren't toys...

Talking about the dangers and then putting some holes in paper doesn't leave the same impression.

Harold_V wrote: ↑

Fri Jan 11, 2019 2:39 am

I can't help but wonder if, maybe, we instilled a little common sense in folks

Good luck with that one!

Harold_V wrote: ↑

Fri Jan 11, 2019 2:39 am

I'm getting old, and likely, crotchety. Maybe that's my problem, and the reason I'm so cynical.

You're not alone...

Yes, sorry I wasn't very clear. Not necessarily backing the cpmpound slid up, but rotating it to an angle closer to the cross slies and keeping the tool closer to the cross slide center line. Over hang like that can also induce some pretty good chatter as well. There are times when a large diameter ...

Look at your tool overhang in relation to the center line of the cross feed slide. That creates seriously unbalanced loading on the carriage and cross slide under heavy cuts. That's one way to break the end off of the compound slide if a tool digs in! I only turn the compound like that when absolute...

I seldom set my compound slide to zero as it blocks my view of the cross slide dial...

hoppercar wrote: ↑

Thu Jan 03, 2019 3:20 pm

maybe that will be my new project this winter, get some brass tube, and make a reliable pump oil can

Or just buy one from these guys.

https://www.dutton-lainson.com/categories.php?cat=31

You'd have some pretty significant cosine error with the gauge set up like you have it in the first pic.

.200" would be the minimum reading. With the thimble zeroed on .2 the bottom ring should be .200" above the surface plate.

Don't forget to always rotate the thimble in the proper direction. Don't back it up.

Bentworker wrote: ↑

Fri Dec 28, 2018 2:59 pm

Anything else besides using a boring bar?

I'm curious about the boring bar comment.

Do you not have one?

pete wrote: ↑

Fri Dec 28, 2018 5:41 pm

I'm unsure of what the Cadillac designation means though.

"Cadillac Gauge Company" was the manufacturer of "Pla-Check" height gauges.

Just like "Mitutoyo" being the manufacturer of "Height Master" gauges.

Google "Height Master" and then look at the images.