Search found 1441 matches

by earlgo
Fri Oct 18, 2019 9:03 am
Forum: Gunsmithing
Topic: 1911 Project
Replies: 25
Views: 1522

Re: 1911 Project

Glen, While you have the sear all lined up and rotating concentrically around the hole, may I suggest a modification that helps get a smooth unvarying trigger pull? The following is a pic of the unmodified sear, but to make a smooth trigger pull one should grind away the area cross hatched in green ...
by earlgo
Sat Oct 12, 2019 1:04 pm
Forum: Lathes
Topic: Screwcutting not picking up in the same place
Replies: 19
Views: 633

Re: Screwcutting not picking up in the same place

Years ago at the Colorado School of Trades where we had South Bend Lathes, we were taught to thread up to a shoulder, i.e. think of a barrel stub against a receiver, by disengaging the drive with the tool still in the cut, and then turn the chuck by hand until the tool was against the shoulder. Tool...
by earlgo
Sat Oct 12, 2019 9:06 am
Forum: Lathes
Topic: Screwcutting not picking up in the same place
Replies: 19
Views: 633

Re: Screwcutting not picking up in the same place

The instruction book for my 1958 ATLAS lathe lists 79 imperial threads and 16 metric threads it will cut. It specifically says that when cutting metric threads, DO NOT disengage the half nuts. I have a box full of change gears instead of a QC box, in case you wondered.
--earlgo
by earlgo
Sun Oct 06, 2019 9:16 am
Forum: Gunsmithing
Topic: German Mortar
Replies: 2
Views: 1093

Re: German Mortar

And here is a model of it that my VERY talented friend made a few years ago. It is one of the many supreme models that he has made of odd things.
German Mortar Model by Wheeler.jpg
Mortar Model by Wheeler
Mr. Wheeler gave me permission to post this photo.
--earlgo
by earlgo
Sat Oct 05, 2019 9:44 am
Forum: Gunsmithing
Topic: 1911 Project
Replies: 25
Views: 1522

Re: 1911 Project

When you get there you might consider using a Colt Commander hammer, they look pretty cool and won't bite. 38Super.jpg Here is a pic of my dad's Remington UMC 1911 that he carried in WWII when he was attached to Patton's army headed for Berlin. He paid $5 for it from a retiring sergeant because some...
by earlgo
Wed Oct 02, 2019 12:53 pm
Forum: General Discussion
Topic: surface grinder vacuum
Replies: 1
Views: 522

Re: surface grinder vacuum

Steve: I used a Delta T&C grinder and sharpened pipe threading dies for 4 years when I was "between jobs" and after. I had a Craftsman shop vacuum (with paper filter) mounted in a shed on the other side of the wall to cut down the noise. In all those years, the only damage was melting a few small ho...
by earlgo
Sat Sep 21, 2019 3:04 pm
Forum: Gunsmithing
Topic: German Mortar
Replies: 2
Views: 1093

German Mortar

Here is a picture of a German Mortar about 170mm made by Rhinemetall. It was captured in 1918 and now resides in a park in Ashland, OH. Unfortunately it is deteriorating to the point where it now needs to be taken seriously or it will end up in the scrap heap. If anyone knows more about this field p...
by earlgo
Tue Sep 17, 2019 10:52 am
Forum: Milling Machines
Topic: For you B-port fans
Replies: 17
Views: 2506

Re: For you B-port fans

The Bport owner got the manual for the series 1 machine and it says clearly in it that there is no adjustment for the brake in the J head. One has to disassemble the drive unit to replace the bands. It doesn't mention anything about previous proctology experience, but it appears that it might be use...
by earlgo
Mon Sep 16, 2019 9:20 am
Forum: The Junk Drawer
Topic: Engineers really know their stuff
Replies: 152
Views: 35490

Re: Engineers really know their stuff

My son graduated from the University of Illinois at Urbana-Champaign with a degree in Computer Engineering. He spent a lot of time and money for that. He has been at MS for 20 years. He can and does do programming as a part of his job, but MS can hire a bazillion (1e^27) programmers from the far and...
by earlgo
Wed Sep 11, 2019 12:48 pm
Forum: Milling Machines
Topic: For you B-port fans
Replies: 17
Views: 2506

Re: For you B-port fans

Rotating the handle and then pulling to lock was my intuitive solution when the issue came up. We tried that and the brake disengaged. This begs the question, why is there a cam-lock feature on the handle if it releases the brake? As mentioned, the owner is waiting for the operation manual. Hopefull...
by earlgo
Wed Sep 11, 2019 8:34 am
Forum: Milling Machines
Topic: For you B-port fans
Replies: 17
Views: 2506

Re: For you B-port fans

This is a J head according to the label and rotating and pulling the handle out does not apply the brake. Only rotating the handle in either direction does. Is something out of adjustment or is this just the way it is? The owner has not gotten the user manual yet, so we are just speculating. --earlgo
by earlgo
Fri Sep 06, 2019 1:29 pm
Forum: Milling Machines
Topic: For you B-port fans
Replies: 17
Views: 2506

Re: For you B-port fans

Another question: Is this brake supposed to lock the spindle when the handle is pulled 'out' instead of rotated? In this particular one the brake works if the handle is rotated left or right but does not engage when the handle is pulled 'out'. bridgeport brake.jpg ( sorry, I must have sneezed when t...