Re: [Emc-users] change of subject, brass or copper?

On Tuesday 18 July 2017 14:41:36 Stephen Dubovsky wrote: > Most of the 140gr 6.5CM data I've seen the bullet slows down past 24" > bbl length. Not sure why you'd want/need a barrel burner either > (isn't thats what people pick 6mm/243 win for?) The stock Hornady 140 > ELD-M load is already

Re: [Emc-users] change of subject, brass or copper?

Most of the 140gr 6.5CM data I've seen the bullet slows down past 24" bbl length. Not sure why you'd want/need a barrel burner either (isn't thats what people pick 6mm/243 win for?) The stock Hornady 140 ELD-M load is already comparable ballistics to 300 win mag. I've shot 6.5CM out to 1200yds.

Re: [Emc-users] change of subject, brass or copper?

On Monday 17 July 2017 23:28:36 dave wrote: > On 07/17/2017 09:23 AM, Gene Heskett wrote: > > On Monday 17 July 2017 11:08:19 andy pugh wrote: > >> On 17 July 2017 at 15:42, Gene Heskett wrote: > >>> I saw that, and the long pipe gripped in the chuck with the huge > >>>

Re: [Emc-users] change of subject, brass or copper?

On 07/17/2017 09:23 AM, Gene Heskett wrote: On Monday 17 July 2017 11:08:19 andy pugh wrote: On 17 July 2017 at 15:42, Gene Heskett wrote: I saw that, and the long pipe gripped in the chuck with the huge bearing so it all turned. The bearing is nice but $$ and not

Re: [Emc-users] change of subject, brass or copper?

On Monday 17 July 2017 11:08:19 andy pugh wrote: > On 17 July 2017 at 15:42, Gene Heskett wrote: > > I saw that, and the long pipe gripped in the chuck with the huge > > bearing so it all turned. The bearing is nice but $$ and not > > needed if the tube is turned truly

Re: [Emc-users] change of subject, brass or copper?

I replaced my outboard spindle nut with a cathead, and made a Morse # 5 1/2 taper cathead to fit the inboard spindle taper so I don't even use a four jaw chuck sometimes. marshall On Jul 17, 2017 10:15 AM, "andy pugh" wrote: > On 17 July 2017 at 15:42, Gene Heskett

Re: [Emc-users] change of subject, brass or copper?

On 17 July 2017 at 15:42, Gene Heskett wrote: > I saw that, and the long pipe gripped in the chuck with the huge bearing > so it all turned. The bearing is nice but $$ and not needed if the > tube is turned truly round. I imagine that a suitable bearing could be found

Re: [Emc-users] change of subject, brass or copper?

On Monday 17 July 2017 06:55:13 Erik Christiansen wrote: > On 17.07.17 10:48, andy pugh wrote: > > On 17 July 2017 at 10:32, Erik Christiansen wrote: > > > Me too, so I wasn't: > > > https://au.pinterest.com/pin/421931058818147426/ > > > > Pinterest only lets you see

Re: [Emc-users] change of subject, brass or copper?

On 17 July 2017 at 13:21, Stuart Stevenson wrote: > I did some roughnecking in my youth so I also know what a cathead is. The > rotating part in the video. > >

Re: [Emc-users] change of subject, brass or copper?

I did some roughnecking in my youth so I also know what a cathead is. The rotating part in the video. https://www.shutterstock.com/video/clip-3869390-stock-footage-drawworks-cathead-rotating-equipment-for-oil-drilling-rig.html Obviously, not the subject of this thread hence the question. :) On

Re: [Emc-users] change of subject, brass or copper?

On 17.07.17 10:48, andy pugh wrote: > On 17 July 2017 at 10:32, Erik Christiansen wrote: > > > Me too, so I wasn't: https://au.pinterest.com/pin/421931058818147426/ > > Pinterest only lets you see the top few results before demanding one > sign-up with them, but I could

Re: [Emc-users] change of subject, brass or copper?

On 17 July 2017 at 10:32, Erik Christiansen wrote: > Me too, so I wasn't: https://au.pinterest.com/pin/421931058818147426/ Pinterest only lets you see the top few results before demanding one sign-up with them, but I could see enough to be led to

Re: [Emc-users] change of subject, brass or copper?

On 17.07.17 09:44, andy pugh wrote: > On 17 July 2017 at 01:57, Stuart Stevenson wrote: > > Agreed - what is a cat head? > > It's the beam that you hoist an anchor with. > https://en.wikipedia.org/wiki/Cathead > > (I knew exactly what a cathead was, and so was even more

Re: [Emc-users] change of subject, brass or copper?

On 17 July 2017 at 01:57, Stuart Stevenson wrote: > Agreed - what is a cat head? It's the beam that you hoist an anchor with. https://en.wikipedia.org/wiki/Cathead (I knew exactly what a cathead was, and so was even more confused) -- atp "A motorcycle is a bicycle with a

Re: [Emc-users] change of subject, brass or copper?

On Sunday 16 July 2017 21:44:42 Trent Hejazi wrote: > Sorry. That’s how I felt when I first heard of a HAL pin ;) > > Catheads usually have four fine thread set screws and act like a for > jaw independent chuck so you can fine adjust the bores on barrels. By > making one, you can gain some

Re: [Emc-users] change of subject, brass or copper?

On 17/7/17 10:11 am, Gene Heskett wrote: On Sunday 16 July 2017 19:13:42 Trent Hejazi wrote: That¹s another direction I want to try. Basically, a cat head riding in a ball bearing that mounts in the steady rest. Not familiar with the term "cat head", 'splain plz. Preferably with a link to a

Re: [Emc-users] change of subject, brass or copper?

Sorry. That’s how I felt when I first heard of a HAL pin ;) Catheads usually have four fine thread set screws and act like a for jaw independent chuck so you can fine adjust the bores on barrels. By making one, you can gain some flexibility. By sticking a DTI probe inside of the bore, you can

Re: [Emc-users] change of subject, brass or copper?

On 07/16/2017 06:13 PM, Trent Hejazi wrote: That¹s another direction I want to try. Basically, a cat head riding in a ball bearing that mounts in the steady rest. This would allow me to center a barrel by using the DTI inside a chamber or muzzle, where I cannot otherwise take a skim cut while

Re: [Emc-users] change of subject, brass or copper?

Agreed - what is a cat head? On Sun, Jul 16, 2017 at 7:11 PM, Gene Heskett wrote: > On Sunday 16 July 2017 19:13:42 Trent Hejazi wrote: > > > That¹s another direction I want to try. Basically, a cat head riding > > in a ball bearing that mounts in the steady rest. > >

Re: [Emc-users] change of subject, brass or copper?

On Sunday 16 July 2017 19:13:42 Trent Hejazi wrote: > That¹s another direction I want to try. Basically, a cat head riding > in a ball bearing that mounts in the steady rest. Not familiar with the term "cat head", 'splain plz. Preferably with a link to a pix? > This would allow me > to

Re: [Emc-users] change of subject, brass or copper?

That¹s another direction I want to try. Basically, a cat head riding in a ball bearing that mounts in the steady rest. This would allow me to center a barrel by using the DTI inside a chamber or muzzle, where I cannot otherwise take a skim cut while supporting on a center or run it through the

Re: [Emc-users] change of subject, brass or copper?

Why not ball bearings? Then there is no relative movement between the rest and the part. As for friction of solid fingers lowest friction is a lead/copper alloy, next best phosphor bronze. Motor oil helps. On Sat, Jul 15, 2017 at 7:00 PM, Trent Hejazi wrote: > I have

Re: [Emc-users] change of subject, brass or copper?

On Sunday 16 July 2017 12:38:46 jeremy youngs wrote: > A piece of cardboard box with a hole in the middle does a treat for > keeping chips out of the steady rest > Hummm, now why the heck didn't I think of that? And after getting the mandrel to fit, I went out and bought some 1/4" SAE bolts to

Re: [Emc-users] change of subject, brass or copper?

A piece of cardboard box with a hole in the middle does a treat for keeping chips out of the steady rest On Jul 16, 2017 10:29 AM, "Gene Heskett" wrote: > On Sunday 16 July 2017 10:55:53 John Kasunich wrote: > > > On Sun, Jul 16, 2017, at 02:51 AM, Gene Heskett wrote: > >

Re: [Emc-users] change of subject, brass or copper?

On Sunday 16 July 2017 10:55:53 John Kasunich wrote: > On Sun, Jul 16, 2017, at 02:51 AM, Gene Heskett wrote: > (snip) > > > Some of this I should be > > doing between centers, driving the workpiece with a dog, but I don't > > have a 5C to MT2 adaptor. I might see if I can find one tomorrow. My

Re: [Emc-users] change of subject, brass or copper?

On Sun, Jul 16, 2017, at 02:51 AM, Gene Heskett wrote: (snip) > Some of this I should be > doing between centers, driving the workpiece with a dog, but I don't > have a 5C to MT2 adaptor. I might see if I can find one tomorrow. My bed > is calling me now. If you are referring to the

Re: [Emc-users] change of subject, brass or copper?

On Sunday 16 July 2017 03:26:45 Peter Blodow wrote: > Gene, > learning from the experience from machining in our shop, I made my > (own private) steady rest with small ball bearings right from the > beginning (and also the moving rest which can be bolted to the > carriage). They also cause some

Re: [Emc-users] change of subject, brass or copper?

Erik, I have also bearings with an outer ring of toroid surface (no edges), but never used them. Peter Am 16.07.2017 um 10:38 schrieb Erik Christiansen: On 16.07.17 09:26, Peter Blodow wrote: Gene, learning from the experience from machining in our shop, I made my (own private) steady rest

Re: [Emc-users] change of subject, brass or copper?

On 16.07.17 09:26, Peter Blodow wrote: > Gene, > learning from the experience from machining in our shop, I made my (own > private) steady rest with small ball bearings right from the beginning (and > also the moving rest which can be bolted to the carriage). They also cause > some minor traces on

Re: [Emc-users] change of subject, brass or copper?

Gene, learning from the experience from machining in our shop, I made my (own private) steady rest with small ball bearings right from the beginning (and also the moving rest which can be bolted to the carriage). They also cause some minor traces on the workpieces, but these can be polished

Re: [Emc-users] change of subject, brass or copper?

On Sunday 16 July 2017 02:21:41 Marcus Bowman wrote: > On 16 Jul 2017, at 06:37, andy pugh wrote: > > On 16 July 2017 at 02:46, Gene Heskett wrote: > >> Which will do the least damage to a pre-finished part, such as the > >> fairly high polished SS barrel? Brass or copper?

Re: [Emc-users] change of subject, brass or copper?

On 16 Jul 2017, at 06:37, andy pugh wrote: > On 16 July 2017 at 02:46, Gene Heskett wrote: > >> Which will do the least damage to a pre-finished part, such as the fairly >> high polished SS barrel? Brass or copper? > On a three-fingered steady, a different approach is

Re: [Emc-users] change of subject, brass or copper?

On Sunday 16 July 2017 01:37:50 andy pugh wrote: > On 16 July 2017 at 02:46, Gene Heskett wrote: > > Which will do the least damage to a pre-finished part, such as the > > fairly high polished SS barrel? Brass or copper? > > Copper is quite sticky, you want brass or

Re: [Emc-users] change of subject, brass or copper?

On Sunday 16 July 2017 00:02:35 Danny Miller wrote: > Look up CA954 aluminum bronze. > I'll keep that in mind Danny, thanks. Brass already purchased though. > Very good sliding surface on stainless. > > Danny > > On 7/15/2017 10:05 PM, Gene Heskett wrote: > > On Saturday 15 July 2017 22:00:44

Re: [Emc-users] change of subject, brass or copper?

On 16 July 2017 at 02:46, Gene Heskett wrote: > Which will do the least damage to a pre-finished part, such as the fairly > high polished SS barrel? Brass or copper? Copper is quite sticky, you want brass or bronze. -- atp "A motorcycle is a bicycle with a pandemonium

Re: [Emc-users] change of subject, brass or copper?

Look up CA954 aluminum bronze. Very good sliding surface on stainless. Danny On 7/15/2017 10:05 PM, Gene Heskett wrote: On Saturday 15 July 2017 22:00:44 Trent Hejazi wrote: I have brass contact fingers and they work well. I'll get a brass bar yet tonight then, thanks. When supporting

Re: [Emc-users] change of subject, brass or copper?

On Saturday 15 July 2017 22:00:44 Trent Hejazi wrote: > I have brass contact fingers and they work well. I'll get a brass bar yet tonight then, thanks. > When supporting the > barrel tennon, they ride on the threads without damaging them. Threads on a p-17 are square, 10 tpi. I already have

Re: [Emc-users] change of subject, brass or copper?

I have brass contact fingers and they work well. When supporting the barrel tennon, they ride on the threads without damaging them. Otherwise, they will always leave an annoying ring on a barrel. Only way to circumvent is to make a collar to slip over barrel, then skim cut concentric with the

[Emc-users] change of subject, brass or copper?

Greetings all; My steady rest has steel sliders, which will not do for working on finished parts. So I need to order a foot of 1/2x1" brass or copper to make some more better shoes. Which will do the least damage to a pre-finished part, such as the fairly high polished SS barrel? Brass or