Search found 19 matches

by 4gsr
Wed Mar 27, 2019 4:03 pm
Forum: Lathes
Topic: Threading without the end groove
Replies: 36
Views: 12125

Re: Threading without the end groove

One tip we used to use when checking threads by M.O.W. Take a dab of grease and apply in the thread where the wires will be placed and do this at 180 degrees from each other. Now, place the wires in the thread, the grease will hold them long enough to get a measurement. Haven't yet lost a wire using...
by 4gsr
Tue Mar 26, 2019 5:08 pm
Forum: Lathes
Topic: Threading without the end groove
Replies: 36
Views: 12125

Re: Threading without the end groove

If you ever worked in a oilfield machine shop, most of the threads are cut up to a shoulder and pulled out next to the shoulder. Rotary shouldered connections are cut on a 2" or 3" taper per foot and as coarse as 3-1/2 threads per inch. And can you imagine threading at around 160 something RPM on a ...
by 4gsr
Fri Mar 15, 2019 11:15 am
Forum: Lathes
Topic: Petermann P4 sliding head automatic lathe (aka screw machine)
Replies: 6
Views: 1721

Re: Petermann P4 sliding head automatic lathe (aka screw machine)

There's a P7 manual for sale on Amazon for $210. If Tony's is cheaper than this, you better jump on it. I've bought a couple of manuals from Tony in the past. Yes, he is a little bit pricey, but for what I paid for and what he sent was well worth the price paid. Very nicely bound and heavy stock pap...
by 4gsr
Sun Mar 10, 2019 10:40 am
Forum: General Discussion
Topic: Spinning bearings with air
Replies: 11
Views: 1303

Re: Spinning bearings with air

According to some of my old bearing manuals, spinning the bearings dry with compressed air will scratch the races and the bearing balls. I've always held on to the bearing and let the bearing rotate slowly while blowing out with air. Lubricate the baring with light oil afterwards so rust bunny's don...
by 4gsr
Wed Feb 27, 2019 9:21 am
Forum: General Discussion
Topic: Rotary Broach holder
Replies: 18
Views: 2657

Re: Rotary Broach holder

I'm a little late to the meeting here. Little Machine Shop used to carry a few rotary broach cutters. I haven't lately. I bought several from them years ago. At the time, they were around $30 a piece. I made a rotary broach fixture to use in the lathe, as mentioned above. For some reason I couldn't ...
by 4gsr
Tue Feb 26, 2019 8:17 pm
Forum: General Discussion
Topic: Walter dividing head
Replies: 11
Views: 1428

Re: Walter dividing head

If I ever decide to adapt the plates I have to my B & S-0 dividing head, I'll start a new thread. Sorry to get off tangent here. KenS.
by 4gsr
Tue Feb 26, 2019 10:54 am
Forum: General Discussion
Topic: Walter dividing head
Replies: 11
Views: 1428

Re: Walter dividing head

I think Cincinnati had both styles of plates, single sided and double sided. I have three of the plates I've collected for future use if I ever get to it to use them. One of the plates has the 127 row of holes. I was thinking of mounting the plate on my B & S 0 dividing head. Yeah, I know, a far fet...
by 4gsr
Mon Feb 25, 2019 8:35 pm
Forum: General Discussion
Topic: Walter dividing head
Replies: 11
Views: 1428

Re: Walter dividing head

There you go. Use the smaller set of plates with the correct plate to create the new one to. I myself, have a small set of plates for my B & S No. 0. Have a stray set of plates I picked up from a dumpster dive that went to a precision plate used by inspection. They didn't know what they went to and ...
by 4gsr
Mon Feb 25, 2019 1:08 pm
Forum: General Discussion
Topic: Walter dividing head
Replies: 11
Views: 1428

Re: Walter dividing head

Nice find. I can't help you on the missing plate. They do come up once in a while on eBay.
by 4gsr
Sat Feb 23, 2019 9:58 am
Forum: The Resource Library
Topic: Thinking of using PVC pipe for air?
Replies: 37
Views: 33014

Re: Thinking of using PVC pipe for air?

Look up "Rapid-Air" industrial installations. You will be amazed how much PEX is used today for air lines. Definitely agree, it's not an good idea to use in an area where welding is being done or any high heat being used, industrial ovens and such. For my home shop application, this stuff is nice! E...
by 4gsr
Thu Feb 14, 2019 6:14 pm
Forum: Milling Machines
Topic: Asian/Chinese made Dividing heads
Replies: 25
Views: 4803

Re: Asian/Chinese made Dividing heads

Yeah, I have a older Well Index 645 mill with about the same Z clearance as a J or 2J Bridgeport without riser bolck. I have a 10" compound tilt R/T that weighs 210 lbs! It reduces my Z by almost 10". So far it has done well for my needs. I'm afraid to hang it out on the end of the mill table. Remem...
by 4gsr
Thu Feb 14, 2019 3:05 pm
Forum: Milling Machines
Topic: Asian/Chinese made Dividing heads
Replies: 25
Views: 4803

Re: Asian/Chinese made Dividing heads

Can these dividing heads be used as rotary tables (provided you can hold what you need to in the chuck). I have neither, but would rather have the dividing head for obvious reasons. I was looking at this one here: https://www.precisionmatthews.com/shop/bs-1dividinghead/ Thanks, Britt You can. They ...