Search found 623 matches

by refinery mike
Thu Jan 28, 2016 10:33 am
Forum: General Discussion
Topic: lapping a thread
Replies: 6
Views: 1455

Re: lapping a thread

Thanks for your replies. I could find nothing on the net about thread lapping except for lead screws in fancy machines. It worked fine for this project. But like mentioned i had the second hardened part that i could keep trying until it ran smoothly. Thanks again!
by refinery mike
Wed Jan 27, 2016 6:52 pm
Forum: General Discussion
Topic: lapping a thread
Replies: 6
Views: 1455

lapping a thread

I needed a special hardened bolt. So i machined it and hardened and tempered it and then polished it up. Now here is the question. To polish the threads i split a nut and put the thread in that nut and then ran it back and forth with 600 lapping paste in it. Then i clamped the split nut in a vise an...
by refinery mike
Thu Jan 14, 2016 2:19 pm
Forum: General Discussion
Topic: Dan Gelbart
Replies: 7
Views: 1844

Re: Dan Gelbart

i think you got a few too many zeroes. 1 micron is about .0000393701 Or .4 tenthousanths.
by refinery mike
Thu Jan 14, 2016 12:51 pm
Forum: General Discussion
Topic: Dan Gelbart
Replies: 7
Views: 1844

Dan Gelbart

Ok I am an idiot the name is Dan Gelbart. the man who became a BILLIONARE working out of his basement shop. And many of the tools he made himself.
by refinery mike
Thu Jan 14, 2016 12:16 am
Forum: General Discussion
Topic: Cylindrical Square update Video online
Replies: 5
Views: 1091

Re: Cylindrical Square update Video online

I followed your lead and bought two Caterpillar wrist pins. May be luck or lack of skills but i do not have anything that can find any need to correct the things. They came as perfect as i can measure. Thanks for the tip. I have always wanted a round square but could not cough up the high price of o...
by refinery mike
Thu Jan 14, 2016 12:06 am
Forum: General Discussion
Topic: dan gepart
Replies: 2
Views: 745

dan gepart

Has anyone else followed the 18 part machining series by Dan Gepart, on Youtube. I found him quite informative and his tools are out of this world. Then i looked him up on Google. It seams that this guy has become a self made BILLIONARE all while working out of his basement tool room. Any one else h...
by refinery mike
Wed Jan 13, 2016 11:58 pm
Forum: General Discussion
Topic: drill bushings
Replies: 3
Views: 832

drill bushings

If i use a jig, and drill through an appropriate drill bushing. will a standard drill bit produce a round hole. How would such a hole compare to a reamed hole or a bored hole.
by refinery mike
Wed Dec 23, 2015 6:25 pm
Forum: General Discussion
Topic: Need A Little Help With Drill I.D.
Replies: 13
Views: 1953

Re: Need A Little Help With Drill I.D.

I do not know where i was but they had several different types of step drills. A common one is used to drill a countersink for socket head cap screws. They are able to origionate and complete the hole. If you are using a drill to counterbore an existing hole then you do not want the pilot to cut at ...
by refinery mike
Wed Dec 23, 2015 6:12 pm
Forum: General Discussion
Topic: er collets
Replies: 16
Views: 2155

er collets

If i already have ER collets in english (1/32) sizes. is there any reason that i should need metric collets for metric size parts. would i do alright with a 16 mm part in a 5/8" collet or should I use a 21/32 collet. OR get a metric one.
by refinery mike
Thu Dec 10, 2015 9:25 pm
Forum: General Discussion
Topic: good project for beginners.
Replies: 7
Views: 1704

Re: good project for beginners.

Wow Einstine, they are beautifull. Back to the shop for me. thanks
by refinery mike
Thu Dec 10, 2015 9:20 pm
Forum: General Discussion
Topic: watch makers jig borer, jig grinder
Replies: 11
Views: 1813

Re: watch makers jig borer, jig grinder

Yes Harold, the dials on this thing were like 5 inches in diameter. And it had some sort of micrometer viewer as well. the dove tails were massive cast iron, probabaly weighed 300 pounds, and i think it only had 150 millimeter travel. It was absolutely a beautiful piece. What does a boring tool look...
by refinery mike
Thu Dec 10, 2015 9:13 pm
Forum: General Discussion
Topic: watch makers jig borer, jig grinder
Replies: 11
Views: 1813

Re: watch makers jig borer, jig grinder

just go to WWW.EBAY.com and look for watch jig borer.