Search found 150 matches

by TRX
Tue Aug 08, 2017 2:23 pm
Forum: General Discussion
Topic: angle of diamond when dressing wheel?
Replies: 18
Views: 2990

Re: angle of diamond when dressing wheel?

I used to see crankshafts from a particular shop that miked out okay, but had a peculiar "threaded" look after they were washed. I did notice the operate swiped the diamond across the wheel pretty fast.
by TRX
Fri Aug 04, 2017 7:55 am
Forum: General Discussion
Topic: angle of diamond when dressing wheel?
Replies: 18
Views: 2990

Re: angle of diamond when dressing wheel?

How does that work when the diamond is pointed down below the centerline of the wheel, though?

That's what prompted the original question; within a short time, I saw pictures of diamonds pointed at about the same angle, but in two different directions.
by TRX
Wed Aug 02, 2017 9:45 pm
Forum: General Discussion
Topic: angle of diamond when dressing wheel?
Replies: 18
Views: 2990

Re: angle of diamond when dressing wheel?

Thanks!
by TRX
Wed Aug 02, 2017 4:07 pm
Forum: General Discussion
Topic: angle of diamond when dressing wheel?
Replies: 18
Views: 2990

Re: angle of diamond when dressing wheel?

The diamond is hexagonal or its holder is hexagonal?
by TRX
Wed Aug 02, 2017 2:54 pm
Forum: General Discussion
Topic: angle of diamond when dressing wheel?
Replies: 18
Views: 2990

angle of diamond when dressing wheel?

I was just looking at a dressing fixture for a bench grinder and noticed that the diamond isn't perpendicular to the wheel face; it's tipped so its axis points about ten degrees below the wheel centerline. I went out to the shop and looked at my Storm Vulcan crank grinder, and its diamond is tilted ...
by TRX
Tue Aug 01, 2017 10:51 am
Forum: General Discussion
Topic: anti-wander drill grind
Replies: 6
Views: 1303

Re: anti-wander drill grind

It definitely wasn't a D-bit or gun drill. It looked like an ordinary twist drill in the blurry picture.
by TRX
Tue Aug 01, 2017 8:27 am
Forum: General Discussion
Topic: anti-wander drill grind
Replies: 6
Views: 1303

anti-wander drill grind

So, I'm looking at an old magazine with a too-blurry-to-be-useful picture of a long drill. The caption reads, "As an illustration of how special bits are available if required, here's a 1/4 in. diameter one over 12 inches long. Wandering off line is almost inevitable during the making of a long hole...
by TRX
Mon Jul 24, 2017 5:36 pm
Forum: Lathes
Topic: holding workpiece against spindle center
Replies: 9
Views: 3433

Harold_V wrote:I'm curious why you don't simply hold the material in a chuck, or even a collet.
I had a tapered or non-round part in mind.
earlgo wrote:Unscrew the faceplate a couple of turns.
That sounds like the trick!
by TRX
Mon Jul 24, 2017 12:08 pm
Forum: Lathes
Topic: holding workpiece against spindle center
Replies: 9
Views: 3433

Re: holding workpiece against spindle center

I thought of something like that using springs, but I was wondering if there was a better way.
by TRX
Mon Jul 24, 2017 9:01 am
Forum: Lathes
Topic: holding workpiece against spindle center
Replies: 9
Views: 3433

holding workpiece against spindle center

Let's say I have a long workpiece that has to be supported on a steady rest since I'll be working on the tailstock end. If I want to use a center and drive dog at the headstock end instead of a chuck... how do I keep the workpiece pulled up against the center? My old "How to Run a Lathe" book sugges...
by TRX
Fri Jun 09, 2017 10:56 am
Forum: General Discussion
Topic: Situating Fixed Tools in New Shop
Replies: 76
Views: 11615

Hunh. I just tried four different web browsers, and all I get is "plugin not available." Doesn't say *what* plugin it wants. Might be something Microsoft-specific.
by TRX
Fri Jun 09, 2017 10:43 am
Forum: General Discussion
Topic: Trend/Decline in hobby related Yahoo Groups Participation?
Replies: 9
Views: 2164

Yahoo's email system is/was seriously broken. Near the end, about 20% of the messages never made it to me. Their web interface was too slow, ugly, and annoying to be a useful alternative. I belonged to a number of mailing lists, some long before Yahoo absorbed them, but finally unsubbed from them al...