Search found 6646 matches

by GlennW
Sun May 12, 2019 12:19 pm
Forum: The Photo Album
Topic: Amazing machine work
Replies: 14
Views: 667

Re: Amazing machine work

Russ Hanscom wrote:
Sat May 11, 2019 9:54 pm
Those look suspiciously like Allison parts!
Packard Merlin.
by GlennW
Fri May 10, 2019 7:46 am
Forum: The Photo Album
Topic: Amazing machine work
Replies: 14
Views: 667

Amazing machine work

Occasionally I see where someone comments on how machine work was somehow lacking back in the 1930's and 40's or that tolerances were loose since it was difficult to maintain any real accuracy. These are some (yes, just some) of the internal parts from the engines that I work on that were designed a...
by GlennW
Sat May 04, 2019 2:57 pm
Forum: General Discussion
Topic: Milling procedure confirmation
Replies: 18
Views: 759

Re: Milling procedure confirmation

This should cut down on the "hammering" of the interrupted cut.
RSG.jpg
by GlennW
Sat May 04, 2019 12:50 pm
Forum: General Discussion
Topic: Milling procedure confirmation
Replies: 18
Views: 759

Re: Milling procedure confirmation

Had to dredge up a pic as I couldn't remember how I did it...and still don't remember exactly how, but the 123 blocks were apparently bolted to the tilting table.

Gray cast iron cuts easier than steel though.

P4100045_2.JPG
Doesn't look like you have room for C-clamps.
by GlennW
Fri May 03, 2019 7:22 pm
Forum: General Discussion
Topic: Milling procedure confirmation
Replies: 18
Views: 759

Re: Milling procedure confirmation

Confirmed.

I did the same with a cast iron bar.

I'd mill so that the cutting force is pushing the stock against the tilting table, not trying to pull it off. (I imagine you'd already figured that out!)
by GlennW
Mon Apr 29, 2019 9:06 pm
Forum: The Junk Drawer
Topic: Today's Discovery: Wire Gauge Drill Bits for Carbs
Replies: 16
Views: 649

Re: Today's Discovery: Wire Gauge Drill Bits for Carbs

I'm sorry to hear about your father, Steve.
by GlennW
Mon Apr 29, 2019 8:58 pm
Forum: General Discussion
Topic: Soluble Coolant Oil
Replies: 22
Views: 955

Re: Soluble Coolant Oil

One of the characteristics of the Castrol Hysol (it's semi synthetic) is it's long sump life. I've let my CNC mill sit unused for a year and had no rancidity issues and did nothing to the coolant, and it has one of the smallest sumps in the shop. My O.D. grinder is the same, but it had a large sump,...
by GlennW
Mon Apr 29, 2019 6:15 pm
Forum: General Discussion
Topic: Soluble Coolant Oil
Replies: 22
Views: 955

Re: Soluble Coolant Oil

I've been using Castrol Hysol MB-50 for years without any of the issues mentioned in this thread.

A lot seem to end up buying the cheapest coolant they can find, which is understandable for a home shop, and then find out that it's cheap for a reason.
by GlennW
Thu Apr 18, 2019 3:26 pm
Forum: Milling Machines
Topic: Hand Held Tachometer
Replies: 3
Views: 566

Re: Hand Held Tachometer

I use one for setting spindle speed for CNC tapping using a floating tap holder. Works great!
by GlennW
Wed Apr 17, 2019 3:26 pm
Forum: General Discussion
Topic: Rubber forming, aka Guerin process
Replies: 15
Views: 2086

Re: Rubber forming, aka Guerin process

You should be able to use a small rawhide mallet and work the wrinkles out bu holding the part over the form and tapping on them. Then maybe another squeeze in the press to finalize them. Using a soft hammer such as rawhide on the metal part against the wood former will shrink the wrinkles, using a ...
by GlennW
Sun Apr 14, 2019 12:36 pm
Forum: General Discussion
Topic: 3-Phase plug / socket
Replies: 9
Views: 806

Re: 3-Phase plug / socket

I use L15-20P and L15-30P with the associated receptacles or cord caps.