Search found 8 matches

by doug925
Thu May 22, 2003 11:55 am
Forum: Welding
Topic: ansi 31.1 para 127.5
Replies: 1
Views: 893

ansi 31.1 para 127.5

What does this mean? This is a spec listed on a fab. callout sheet for ductile iron piping. i do not know what this means. Can anyone explain it to me? How can one pick a fab shop that has this spec... if I do not know what the hell it is? Please help... Thanks doug.
by doug925
Thu May 15, 2003 3:46 pm
Forum: General Discussion
Topic: drill dr. or darex?
Replies: 11
Views: 2002

Re: drill dr. or darex?

We sharpened them by hand. I am not nere as good as some though. The sharpener I own will allow even the newbie to sharpen most of our drills with any point that we may need. prior to that only some of the more experieced guys could do it, and do it rught.
by doug925
Mon May 12, 2003 12:57 pm
Forum: General Discussion
Topic: drill dr. or darex?
Replies: 11
Views: 2002

Re: drill dr. or darex?

Tony, I have a a Darex M5d drill sharpener, and an E90 mill sharpener w/ raduis attachment. I think they are GREAT! The cost is a little high for a home user, (well, very high) but for a machine shop they are the [email]sh@#[/email] !! I originally purchased a Drill Doctor from Home Depot. Not very ...
by doug925
Sat Mar 22, 2003 1:49 pm
Forum: Milling Machines
Topic: Bridgeport mill, table removed. Advice please .
Replies: 15
Views: 7465

Re: Bridgeport mill, table removed. Advice please .

Sandman...would the rifle in the bridgeport=rifle comparision be a handmade McMillan bmg50[img]/ubb/images/graemlins/cool.gif"%20alt="[/img], or a Barret bmg50[img]/ubb/images/graemlins/cool.gif"%20alt="[/img]?????? I kow I would love to own one but it is cost prohibitive for most of us mere mortals...
by doug925
Tue Mar 18, 2003 1:31 pm
Forum: General Discussion
Topic: Reaming aluminum
Replies: 6
Views: 3345

Re: Reaming aluminum

Hi Chris. I am glad to hear that you had no porblems reaming the bearing holes. When i ream Aluminum, I use a 90 sfm, and .006 feed per rev. example rpm=3.82x sfm(90) / dia. (.500), or 3.83x90/.500 = 687 rpm x .006 ipr(inches per rev.)=4.125 inches per minute. I drill 1/64 underneath the ream hole s...
by doug925
Thu Mar 13, 2003 12:01 pm
Forum: General Discussion
Topic: Homebrew slow speed grinder completed
Replies: 6
Views: 1784

Re: Homebrew slow speed grinder completed

Roy, nice work. I spent the better part of an hr. looking at all the great projects you have built. Were you/ are you, by chance an engineer, as well as a machinist??? I can tell you put in MANY meticulus hours disigning and building the shaper and other projects!! Great web site. Best Regards, Doug...
by doug925
Wed Mar 12, 2003 11:50 am
Forum: General Discussion
Topic: Tapping in Stainless
Replies: 6
Views: 1416

Re: Tapping in Stainless

You can use any type of tap, as long as it is SHARP. Be careful not to workhaden the matl. when you drill it. Look up your speeds for whatever type of stainless you are working on. (if you know it) As a general rule, I use between 35 - 55 sfm for drilling 300 series stainless. I prefer OSG, and YMW ...
by doug925
Thu Feb 13, 2003 10:40 am
Forum: General Discussion
Topic: centering a Jacobs model 50 chuck
Replies: 0
Views: 607

centering a Jacobs model 50 chuck

I acquired a Jacobs model 50 collet chuck and we know some of you have encountered the same problem... How do I pick up true center of the chuck with the backing plate? Do I simply use the 5/16 fasteners? This seems a little hokey, but maybe that's what was done when these were made. Any help, or dr...