Author Topic: Working with Manual Mill and Breech Setup (Read 7692 times))

gene_sc · « **on:** January 16, 2012, 07:36:00 PM »

Thought I would show you what I did after I bought my mill. I needed a way to keep my breech blocks above the vise jaws. Normally you would use parallel bars to raise material in vise. But I found that this method was much better. It lets me be able to finish up squaring the breech block after I have bored my barrel and probe holes.

I drilled and tapped two holes on each side of my vise. Made a plate to mount to each side. then I bored and tapped two more holes to each bracket. This allowed me to use another set of aluminum blocks which I could mill to true horizontal plane. Once I milled both sides I had a true level plane. I could take a perfectly trued steel rod the size of my breech block barrel and probe hole and extend it across both plates. This give me a true level working bed.

rsterne · « **Reply #1 on:** January 16, 2012, 07:59:13 PM »

Not only that, but if you wish to machine a "correction" into the scope rails for, say, a 40 yard zero you could have one block a bit taller than the other.... About 0.015" in a 6" length would be pretty close for a pellet with a BC of 0.030 at 850-900 fps.... That would put the scope much closer to optical zero....

Bob

hogdog4953 · « **Reply #2 on:** January 16, 2012, 08:43:34 PM »

Is this to say you are making the multishot breech for disco's. I spoke with sergio today and am about to take the plunge. I want to make sure I get something that works.

gene_sc · « **Reply #3 on:** January 16, 2012, 11:21:45 PM »

I have seen and installed Sergio's breeech's and his latest breech is a great design and works just fine.

Quote from: hogdog4953 on January 16, 2012, 08:43:34 PM

Is this to say you are making the multishot breech for disco's. I spoke with sergio today and am about to take the plunge. I want to make sure I get something that works.

gene_sc · « **Reply #4 on:** January 16, 2012, 11:24:11 PM »

Exactly Bob, the pieces to the can be machined for other alternate degrees of angle like you mentioned. Was thinking about that with bigger caliber barrels with heavier pellets.

hogdog4953 · « **Reply #5 on:** January 17, 2012, 08:27:00 PM »

Thank you Gene. I spoke with him yesterday and he is a very nice man. As are all of you.

ronbeaux · « **Reply #6 on:** January 17, 2012, 10:15:14 PM »

I feel so small. I am scoping out mills now. I am hooked on the machining stuff.

Sooooo. If say you had about $3000.00 disposable income to play with.

What would YOU get to have a decent lathe and a mill???

I jump into hobbies pretty hard and have test run this 7x10 long enough to know that I want to keep at it. At 55 years old this is right up my alley to keep me interested.

I know I'm a long way behind but I like to learn and improve.

lloyd-ss · « **Reply #7 on:** January 18, 2012, 01:46:33 PM »

Quote from: ronbeaux on January 17, 2012, 10:15:14 PM

I feel so small. I am scoping out mills now. I am hooked on the machining stuff.

Sooooo. If say you had about $3000.00 disposable income to play with.

What would YOU get to have a decent lathe and a mill???

I jump into hobbies pretty hard and have test run this 7x10 long enough to know that I want to keep at it. At 55 years old this is right up my alley to keep me interested.

I know I'm a long way behind but I like to learn and improve.

I have a Grizzly G0602 lathe ($1,195) and a G1005Z mill($995). I think they are very good values for the $$. They are both adequate for what I do, but I always lust after the nicer machines. Look at the Grizzly site for a gut check on how the prices run with the various sizes of machines. Tooling always adds a lot, but you can accumulate that over time.
Everybody has their favorites. For me, it was what I could afford.
BTW, I originally bought a smaller mill, used it for 5 minutes, realized I had made a mistake, and talked Grizzly into giving me full credit toward a bigger machine. Funny thing is, the salesman at the Grizzy store in PA, a retired machinist, had told me I wouldn't be happy with the smaller machine.
Lloyd

ronbeaux · « **Reply #8 on:** January 18, 2012, 10:47:11 PM »

I had both of those in my sights but the 704 with the stand instead.

ronbeaux · « **Reply #9 on:** January 18, 2012, 10:59:28 PM »

Gene

Your project is cool. I was researching and saw some of those blocks with holes in them used for spacing like that but I can see where they wouldn't work in your set up. That's why I feel so small. It never crossed my mind to make your own schit instead of searching a catalog to find something.

Put me on your list for a .25 cal PCP in a carbine style.

gene_sc · « **Reply #10 on:** January 19, 2012, 12:27:54 AM »

Ya Ron they are called parallel bars and I use them allot. Have not started on the single shot breech yet but it will be one of my projects soon.

As far as a lathe and mill are concerned, Lloyd hit it on the nail head..., Buy what you can afford..

For allot of the work you will want to do you will need at least an 8 -9" chuck with at least a 1" hole through spindle on the lathe. At least 20" long bed. I use my lathe the most and mine is a 9" x 27" lathe. And sometimes I feel I need a longer bed...

.

My mill is just about the same as Lloyds mill from Grizzly and my lathe I bought from Travers Tools. Total investmen for just lathe and mill was about $2400.00. Grizzly has nice lathes and mills in that price range. Watch for specials on freight. The tooling is the killer though...

I have bought several items off flea bay and amazon and save allot of money. Do your homework and you will do great Ron.

Rescue35 · « **Reply #11 on:** January 19, 2012, 10:57:31 AM »

Great setup, I will store that one away for future use.

Just thought I would drop a link for those machine tool shoppers. I bought my mill and lathe from these folks. Prices are better than Grizzly usually. www.wttool.com

gene_sc · « **Reply #12 on:** January 20, 2012, 01:07:12 AM »

You will find that many of the lathes and mills we are speaking about are made in China. Like our air guns they come from mostly one or two manufacturers and spect by guys like Grizzly, Travers and others for sale here in the US. I pays to do your reasearch on these machines. You can save allot of money if you know what you need without all the extra frilly stuf...

My machines are basic and prolly made by the same manufacturers that most wholesale tool companys sell.

Pete · « **Reply #13 on:** January 20, 2012, 02:11:09 AM »

Those little units are great for AG stuff & smaller turning..
But its not to much more to go the next size/stage up..
The tooling requred is bigger & it cheaper as there
is so meany more brands to choise from..
I needed a lathe & mill for more than just AG parts..
So a lathe with 1" bore just wasn't going to cut it..
mine will take 1 1/2" though the bore & swing 13"
And I still would have liked 2" bore & 18" swing..
then the prise heads for the moon..

Rescue35 · « **Reply #14 on:** January 20, 2012, 08:47:53 AM »

Nice tools Gene and Pete. I've found myself wishing mine where already moved and set up at the new place.

For people looking to buy a larger mill/drill look at the square columns (Grizzly G704 I think). They will save you some time and frustration when you are doing multiple setups.

lloyd-ss · « **Reply #15 on:** January 20, 2012, 11:18:47 AM »

Quote from: Rescue35 on January 20, 2012, 08:47:53 AM

Nice tools Gene and Pete. I've found myself wishing mine where already moved and set up at the new place.

For people looking to buy a larger mill/drill look at the square columns (Grizzly G704 I think). They will save you some time and frustration when you are doing multiple setups.

Is that G704 new, like within the past few years? Not loosing your location when you move the head up and down would be really nice, but the quill travel is only 2" ? I can see advantages to both styles. Mostly, I have figured out work-arounds so that I can avoid moving the head on my G1005 during one setup.

lloyd-ss · « **Reply #16 on:** January 20, 2012, 11:24:27 AM »

Gene,
Did you clean your shop up just for the photo shoot? LOL It looks great!

I have started keeping my shop much cleaner after we had a big permanent 5S cleanup effort at work.
And I do have to admit, now that I have places for almost all of my stuff, I like keeping it that way.

Also, what kinds of things do you use the blast cabinet for? I don't have one, but maybe I need one, LOL!
Lloyd

ronbeaux · « **Reply #17 on:** January 20, 2012, 03:37:25 PM »

I'm scoping out the 704 pretty hard but I also like the Little Machine Shop version. They are about the same price.

Nice shop Gene!

Can you cook tacos in yours?

Rescue35 · « **Reply #18 on:** January 20, 2012, 03:49:32 PM »

LLoyd I don't have a 704, was just mentioning it since it is a little easier on folks who are still trying to learn. Sometimes I have to redo a setup on my round column (although it is rair

)and as aggravating as it is anyway it is like throwing salt on a wound when I have to zero it in twice.

rsterne · « **Reply #19 on:** January 20, 2012, 06:36:36 PM »

You guys need to stop your b!tch!ng and do your milling the old fashioned way.... using a milling attachment on a lathe carriage.... I have 6" of cross travel (X) and 3" of vertical (Y).... mind you, the "Z" direction is the length of the bed....

Bob

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Working with Manual Mill and Breech Setup

Author Topic: Working with Manual Mill and Breech Setup (Read 7692 times))