Search found 6573 matches

by GlennW
Thu Oct 18, 2018 8:03 pm
Forum: The Junk Drawer
Topic: What is This Thing?
Replies: 10
Views: 212

Re: What is This Thing?

I knew them as Fimco Valves back when I was in High School, named after the manufacturer.

Every time the pump cycled off and back on it would change sprinkler stations.

It didn't take much to make them stick on one station...
by GlennW
Fri Oct 12, 2018 9:02 pm
Forum: Lathes
Topic: D1-4 Camlock Problem.
Replies: 9
Views: 465

Re: D1-4 Camlock Problem.

My Camlock chucks all have an index mark on them that I put there so that they always get installed in the same position for repeatability, as there is a corresponding index mark on the spindle.
by GlennW
Fri Oct 12, 2018 5:32 pm
Forum: The Photo Album
Topic: Soft Jaws
Replies: 19
Views: 3117

Re: Soft Jaws

I saw in one of "Patio's" threads where someone asked about holding threaded objects. If you're too lazy to get out the soft jaws like I sometimes am, or don't have them, an aluminum sleeve to cover the threads works well for me. I make a fair amount of these, but only one at a time, so I have a ded...
by GlennW
Sat Oct 06, 2018 9:04 pm
Forum: Buy, Sell, Trade, Wanted, Free!
Topic: Stones for cylinder hone?
Replies: 5
Views: 308

Re: Stones for cylinder hone?

AN stones have rack pins attached.
by GlennW
Fri Oct 05, 2018 8:48 am
Forum: Lathes
Topic: lapping internal taper?
Replies: 18
Views: 676

Re: lapping internal taper?

I was looking at the lapping section in my 1940s Audel's machinists manual and found a comment that taper laps were sometimes made, but they recommended against their use. They didn't say why, though. Tapered lapping isn't too good because the lap will wear with a pattern in it that matches the sur...
by GlennW
Thu Oct 04, 2018 7:26 pm
Forum: Lathes
Topic: Need a way to turn a 30 tpi screw.
Replies: 93
Views: 9630

Re: Need a way to turn a 30 tpi screw.

^^^
That's true!
by GlennW
Thu Oct 04, 2018 1:19 pm
Forum: General Discussion
Topic: metric drill set explained?
Replies: 65
Views: 1993

Re: metric drill set explained?

Here's a quick google search. https://www.engineersedge.com/hardware/metric-external-thread-sizes1.htm The above chart shows "standard" ISO hardware class, which I would estimate to be the same as US Class 2. I use software for threading and you select the ISO number and letter designation for the d...
by GlennW
Thu Oct 04, 2018 12:33 pm
Forum: General Discussion
Topic: metric drill set explained?
Replies: 65
Views: 1993

Re: metric drill set explained?

John Hasler wrote:
Thu Oct 04, 2018 12:16 pm
I know they specify tolerances. I mean tolerance classes: https://en.wikipedia.org/wiki/Unified_T ... ce_classes
So, you are referring to the fact that ISO doesn't use the actual word "Class" but instead uses a number and a letter to represent the same.
by GlennW
Thu Oct 04, 2018 11:47 am
Forum: General Discussion
Topic: metric drill set explained?
Replies: 65
Views: 1993

Re: metric drill set explained?

Don't forget tolerance classes, which are usually ignored by maintenance people replacing hardware. ISO doesn't seem to have them (which is not necessarily good) They don't?? External Tolerances: Pitch Dia.: 4,5,6,7,8,9 Major Dia.: 4,6,8 Position: e,f,g,h Internal Tolerances: Pitch Dia.: 4,5,6,7,8 ...
by GlennW
Wed Oct 03, 2018 9:29 am
Forum: General Discussion
Topic: metric drill set explained?
Replies: 65
Views: 1993

Re: metric drill set explained?

earlgo wrote:
Wed Oct 03, 2018 9:11 am
In addition the shop had a heck of a time finding metric hammers. :)
Did they ever find the tapered pipe taps?
by GlennW
Wed Oct 03, 2018 6:36 am
Forum: General Discussion
Topic: metric drill set explained?
Replies: 65
Views: 1993

Re: metric drill set explained?

Bad Dog your experience with the availability of metric hardware is due to the fact that you live in the US and need metric. The same experience would apply to someone living in a metric country trying to procure Imperial hardware. Should you live in a metric country you would have had no problem s...
by GlennW
Tue Oct 02, 2018 12:50 pm
Forum: General Discussion
Topic: metric drill set explained?
Replies: 65
Views: 1993

Re: metric drill set explained?

I haven't discovered the flaw in the Imperial system yet! I had a guy ask if I could make some parts for him to replace some broke parts. They were either hydraulic or pneumatic piston/shafts that were threaded externally on one end, so I said sure, no problem. When I got them apart and measured the...