Search found 1841 matches

by Richard_W
Sat Sep 22, 2018 6:29 pm
Forum: General Discussion
Topic: Tightening a chuck
Replies: 11
Views: 2196

Re: Tightening a chuck

The idea is that the chuck wrench provided is the max tightening need for a particular size chuck. While on small diameter chucks being tight is not as critical. However on larger 12 and 14" and bigger chucks if you are not tight enough, the scroll will loosen when turning on the spindle. Reason bei...
by Richard_W
Sat Sep 22, 2018 5:29 pm
Forum: Milling Machines
Topic: Spindle collet grub screw
Replies: 17
Views: 4904

Re: Spindle collet grub screw

The pin/screw to is not meant to be a driver of the collet. But is there in case the threads are tight to keep the collet from spinning while removing the collet. This rarely happens and then you would need a collet wrench if the screw/pin is missing. I have only had this happen once that I can reca...
by Richard_W
Sat Sep 22, 2018 5:19 pm
Forum: General Discussion
Topic: index head
Replies: 53
Views: 9379

Re: index head

One thing I neglected to say is this is small enough to be mounted in a 6" mill vise. So you don't always have to remove the vise to do some little part unless you need to use the tail stock center.
by Richard_W
Sat Sep 22, 2018 5:09 pm
Forum: General Discussion
Topic: Question about silver brazing
Replies: 6
Views: 1579

Re: Question about silver brazing

The flux should go on where ever you want the silver solder to stick. The silver solder will wick up into assembled parts provide you have put the flux where you want the solder to go. I have made custom hydraulic fittings with a loose fit and had the silver solder wick all the way that you could se...
by Richard_W
Sat Sep 22, 2018 4:47 pm
Forum: General Discussion
Topic: Indexable insert holding system ?
Replies: 5
Views: 1447

Re: Indexable insert holding system ?

The torx screw is the way to go. I would dearly love to switch all my TPG/TPU insert boring bars to that. On such a small bar you should go to a solid carbide boring bar for best results. I have a 1/4" solid carbide boring bar and it works really well. I have 3/8, 1/2, 5/8, 3/4 and 1" diameter borin...
by Richard_W
Sat Sep 15, 2018 7:33 pm
Forum: Milling Machines
Topic: Good Milling Vise
Replies: 12
Views: 4440

Re: Good Milling Vise

It depends on how old of a Kurt vise you are looking at. The new ones have a different screw clamping system and open up wider. The first Kurt vise I used back in the late 1970's would only open about 4 1/2" if I remember correctly. The newer ones can open up to 7 1/2", again if I remember correctly...
by Richard_W
Sat Sep 15, 2018 7:24 pm
Forum: Milling Machines
Topic: all-thread studs for clamping
Replies: 18
Views: 6077

Re: all-thread studs for clamping

You don't want the hardware store threaded rod. What you want is B7 threaded rod. This is actually better than the studs in most clamping sets. Most common size for the home shop is 1/2"-13. https://www.ebay.com/itm/1-2-13-x-8-B7-Alloy-Steel-Threaded-Rod-ALL-AMERICA-THREADED-PRODUCTS-36365/272815581...
by Richard_W
Sat Sep 15, 2018 6:49 pm
Forum: General Discussion
Topic: Drilling Power Hacksaw blades ?
Replies: 9
Views: 1716

Re: Drilling Power Hacksaw blades ?

I would use a 4 flute carbide ball end mill. I put holes in a 3/8" thick A2 at I think was 62 RC. Also milled 4 slots with the same ball end mill. Someone had the part heat treated before all the slots and holes were put in. I would use a light feed and a little cutting oil applied with an acid brus...
by Richard_W
Sat Sep 15, 2018 11:39 am
Forum: General Discussion
Topic: index head
Replies: 53
Views: 9379

Re: index head

I was pleasantly surprised to see it's a dividing head with a tailstock. If it's of any quality at all, that's a pretty good deal, Richard. Make sure to give us a report when it arrives. H Well I had the index head for 1 day. As the story goes I told the shop lead-man that I bought one and was wait...
by Richard_W
Thu Sep 13, 2018 12:13 am
Forum: General Discussion
Topic: gun drill oil feed
Replies: 8
Views: 1498

Re: gun drill oil feed

I really don't like the spray as the chips fly out and across the room. I gun drilled a 22.5" deep hole with a 9/16" gun drill just today. It fogs up the shop and makes a big mess. Years ago we gun drilled on an Okuma LC40 4 axis CNC lathe. We just used regular coolant but used a high pressure multi...
by Richard_W
Mon Sep 03, 2018 11:54 pm
Forum: General Discussion
Topic: index head
Replies: 53
Views: 9379

Re: index head

Yes, please let us know your review of this DH when you get it. I am particularly interested in their 5” chuck, as I bought a BS #0 from a grizzly a year ago and STILL don’t have a chuck for it. (Note: why would they sell something like that and not carry a chuck for it????) Glenn I will change out...
by Richard_W
Mon Sep 03, 2018 11:50 pm
Forum: General Discussion
Topic: index head
Replies: 53
Views: 9379

Re: index head

Could not resist and ordered one. What is the threaded ring for? The H shaped part goes with the Morse taper dead center? What are the square ?nuts? for? There is an index plate behind the chuck, I do not see when it come useful. The threaded ring is to protect the spindle threads when using the Br...