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Re: Screwless vise
I am interesed in seeing your idea as I will at some point make a modification to mine.
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Could you contact me off the group? Thank you Dick --- In 7x12minilathe@..., "Michael Taglieri" wrote:
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Re: seperating workpiece cyno
Don Leitch
¿ªÔÆÌåÓýHi and thanks? good idea , yes its removed Don ? From: 7x12minilathe@... [mailto:7x12minilathe@...] On Behalf Of anthrhodes@...
Sent: Saturday, 9 February 2013 5:27 p.m. To: 7x12minilathe@... Subject: [7x12minilathe] Re: seperating workpiece cyno ? ? Don, ? I suppose you've probably solved this by now, but if not --- ? Hold a steel piece hard against the aluminum piece, no clearance, then strike the block with a common hammer, not soft or dead blow. If you don't trust this, make up a test piece to try it on first. ? Just a thought. ? Anthony Berkeley, Calif. **** In a message dated Wed Feb?6,?2013 9:10?pm (PST),?Don Leitch?writes:
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Re: seperating workpiece cyno
¿ªÔÆÌåÓýDon,
?
I suppose you've probably solved this by now, but if not ---
?
Hold a steel piece hard against the aluminum piece, no clearance, then
strike the block with a common hammer, not soft or dead blow. If you don't trust
this, make up a test piece to try it on first.
?
Just a thought.
?
Anthony
Berkeley, Calif.
****
In a message dated Wed Feb?6,?2013 9:10?pm (PST),?Don
Leitch?writes:
That's what I thought I was going to be able to do . |
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Re: Screwless vise
Michael Taglieri
I realize I'm replying to a post that was written almost 8 months ago, but I
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tend to get behind reading emails from this group, so I hope someone will still be interested. Many years ago on the 7x10minilathe group I shared an easy trick to solve the problem of adjusting the compound. The problem is that you normally want to adjust it with the slide in working position, but then you have to screw the slide back to turn the two M6 capscrews and the slide sometimes moves while you're doing that. But you can solve this problem easily by simply putting spring washers under the heads of the capscrews. Then you adjust the screws to hold the compound very snugly while still letting you adjust it. I set the screws so the compound will JUST move when I tap it with a lump of lead (which is what I use for tapping precision surfaces). Once you get the compound where you want it, the spring washers will hold it securely while you crank the slide back to tighten the screws down fully. Concerning what washers to use, you can buy Bellville-type spring-washers from the usual sources (). But I didn't want to bother just to get two washers, so I used a couple of small lock washers that I had already() and filed off their sharp points so they wouldn't dig into the metal of the compound. I did this at least 10 years ago and this setup for adjusting the compound still works fine. Of course, it's still a pain in the butt to crank the compound back to tighten it, so a more elegant adjustment method would be better, but this solution took 5 minutes and solves the problem of unwanted motion of the compound, so it's good enough for me. Mike Taglieri miket_nyc@... Everyone has his reasons. - Jean Renoir "The Rules of the Game" P.S. I have just purchased a Seig C3 7 x 14 lathe for work (scientific |
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Re: If you ever need to make a spindle workstop...
That's a great idea...
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Mark Schwiebert wrote: I drilled the draw bolt for my collet chuck, so I could run a stop through it. |
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Re: If you ever need to make a spindle workstop...
--- On Fri, 2/8/13, WAM wrote:
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Re: Axis designations
On Friday, February 08, 2013 03:06:17 am you wrote:
Tell me if I should change my thinking.you know your machine so you're OK if you work with more than one brand or type of machine the axis designations break down fairly quickly ,they usually try to stay close to 'the book' for them but not always so it comes down to knowing the quirks of the machine you're working on I work on a couple mill/turns where the Y axis is mirrored ,it makes perfect sense when you stand at the machine but most cad/cam programs will give you upside down code (or is it backwards?) on another they folded them over ,everything on the main spindle is right but the sub spindle is all wrong ,until you get used to it you need a map at the machine just to make offset adjustments and another to figure out the error messages ,if the X2 axis has a problem it shows up as U1 never could stand that machine Brian -- Nemo Me Impune Lacessit |
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Re: If you ever need to make a spindle workstop...
Thanks!!... Been wanting to do that for a while. I made some ends that allow me to get past the chuck jaws and do down to 1/8" diameters. I made the body of it .63" to fit the 3" chuck bore to center the .11" stop end. The stop ends thread into the body so I can make various sizes as needed.
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Mark Schwiebert wrote: WAM; |
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Re: seperating workpiece cyno
¿ªÔÆÌåÓý
Too right! I had a gallon (1.25 US gallons) can of acetone, nearly full. It?lurked?untouched in the garage for 30 years. When I eventually needed some, it was empty. The top surface?had gone rusty (condensation, probably) and there were one or two pinholes through it. ? Andy To: 7x12minilathe@... From: maschwiebert@... Date: Fri, 8 Feb 2013 09:23:16 -0800 Subject: Re: [7x12minilathe] seperating workpiece cyno ?
--- On Thu, 2/7/13, Colin Sharpe wrote:
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Re: seperating workpiece cyno
--- On Thu, 2/7/13, Colin Sharpe wrote:
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Re: If you ever need to make a spindle workstop...
--- On Thu, 2/7/13, WAM wrote:
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Re: Axis designations
¿ªÔÆÌåÓýMike wrote.......Now you are really confusing
me.......
?
Yes and me too. I was?taught many years ago at
college and confirmed later by a manufacturer, that all axis relate to the
workholder. Consider the lathe, the spindle axis holds the work. Now a vertical
milling machine, the spindle holds the cutting tool, but so does a horizontal
milling machine and the spindle is parallel to the bed!? Never mind slant
bed machines, multi-axis machining centres etc. So the Z axis move towards
and/or away from the workholder. The X & Y axis move across the workholder
at right angles to each other. Not all 3 need to be used eg centre lathe and
some machines have 4 or more axis eg multi-spindle machining centres. However,
as we are not all professional machining companies, we don't need to get our
knickers in a twist over it.
Cheers.
???????
Ellis |
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Re: Axis designations
Mike,
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My error! I meant "z axis". Thanks for the correction. Dick --- In 7x12minilathe@..., "drmico60" wrote:
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HF 7-10 conversion
Hey guys I have an 2002 HF 7 by 10 that I was thinking of getting the LMS 14 in. bed and doing all the mods you can do with it, BUT giveing all the costs that will come up with it, would I be better off leaveing it as is and getting a 9 by 16 I want to be able to do finer work then old bettsie does altho its not bad ,the limits kinds put well a limit on you and now that I have lots of time (hope I do) I want more room to play thanks ED
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Re: Real Bull 7x14 lathe questions?
MERTON B BAKER
I've been using my HF 7x10 for nearly25 years. It is now fitted with a 3C
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collet closer I made, and I use if for stuff that has to stay concentric, even though taken out of the spindle & replaced when making different cuts. True, it lacks torque at low speeds, but I never use it at low speeds, as it shines best with small diameter work, anyway. If I had to turn a 6.5" flywheel, I'd use the crank. Or the 12x36. Mert -----Original Message-----
From: 7x12minilathe@... [mailto:7x12minilathe@...]On Behalf Of Robert Furmanak Sent: Friday, February 08, 2013 10:00 AM To: 7x12minilathe@... Subject: RE: [7x12minilathe] Re: Real Bull 7x14 lathe questions? I agree with your advice. I started out with a cheap Harbor Freight (Seig) 7x10 , and upgraded it as I increased my skills and interest in machining. For small diameter work, they are not bad machines, and they can be a real bargain if you are within driving distance of a Harbor Freight store, and you have a 20% off coupon. They are store stock items, so you can actually see it, rather than buying sight unseen. Currently, the HF 7x10 is on sale for $499. A 20% off coupon brings that down to $399. If you pick it up, shipping costs are zero. Even though it is a small lathe, that is an attractive offer for the budget minded who is otherwise looking at around $900 for an LMS, Micro Mark, or Big Dog lathe including shipping. From: 7x12minilathe@... [mailto:7x12minilathe@...] On Behalf Of gerry waclawiak Sent: Friday, February 08, 2013 9:15 AM To: 7x12minilathe@... Subject: RE: [7x12minilathe] Re: Real Bull 7x14 lathe questions? Bob and others looking to buy a 7x lathe I would not just write off any of the older lathes for the "new kid on the block" the new top of the line Sieg type with new motor and control technology,as sold by LMS and others. Whilst it is true that they are the best so far and that power is more than adequate at all speeds they are otherwise little different in design, fit and finish to all the other models that went before them and that means weaknesses as well as strengths. As they are sold at a premium price and have limited availability this will undoubtedly mean a hefty shipping bill for many prospective purchasers compared with a "lesser" model that can be bought at discount locally and collected it might well be that they work out a great deal more expensive. When the 7x mini-lathes first appeared the motor power of 250-300W sometimes something of an issue, especially with large diameter parts at low speeds, but the motors have steadily increased in power over the years and seem to range from 350-550 depending on the vendor and model, still not as good as the new motor Sieg (500W but higher torque) but a definite improvement and likely to satisfy most people. Here in the UK the premium for the new Sieg is the equivalent of $300 and I have read it can run to that in he US too, depending on offers etc. If you want the extra power and money is not an issue then the Sieg is the best of the crop, but for those on a budget, who are a little less demanding or are not averse to taking things a little slower then one of the older could make a very good purchase and leave you change for extra tooling and accessories. There is also of course the opportunity to look at the used market as well. Gerry W Leeds UK _____________________________ > To: 7x12minilathe@... > From: clevinski@... > Date: Fri, 8 Feb 2013 11:47:27 +0000 > Subject: [7x12minilathe] Re: Real Bull 7x14 lathe questions? > > > < br>> Bob, > > I've had a Real Bull 7x14 with gear box since May, and I love it. It > did come with quite an accessory package, including a 4" 3-jaw chuck, > (which is standard if you buy it from Big Dog), steady and follower > rests, metal main transmission gears (not all of them), tails stock > drill chuck, live center and dead center. I really liked the > accessories (though I have not yet used the follower rest) and I > especially liked the 4" chuck and metal gears. > > Just my two cents... > > Charlie > > --- In > 7x12minilathe@... , > "bob_guenthner" wrote: > > > > > > Had a response from one of the eBay sellers that the Real Bull lathe > does have a high/low gear box. It's still a possibility depending on > what a follower ans steady rest would cost me. > > > > Bob > > --- In > 7x12minilathe@... , > "bob_guenthner" wrote: > > > > > > I would like a larger lathe, but space and money are the limiting > factor. I do have access at work to a South Bend, I don't know the > exact size, but it's probably a 12 x 60 and an older South Bend that's > about 36 inches long. The problem is I work for the federal government > and most people at work wouldn't like it too much if I had a rifle > barrel or action chucked up in the lathe. I can do most of the work I > need to do on a 7x14, but could possibly sneak in some time on the work > lathes if I had to on a weekend. > > > > > > Bob > > > > > > --- In > 7x12minilathe@... , > "Tony Smith" wrote: > > > > > > > > ; > Not sure of the price range you guys are looking at,but at > 1150.00 my 10x22 > > > > > from grizzly is several times the lathe that the 7x12 it > replaced. I lost the 7x12 to > > > > > thieves last winter, and got the 10x22 as I kept seeing the 7x14 > for around > > > > > $800+ with a bit less than what the 10x22 came with. The wife > wasn't so happy > > > > > with the extra cost, but now that i'm getting used to the bigger > I'm glad I got it. It > > > > > comes with 5" 3 jaw, 6" four jaw chuck, face plate, steady rest, > follow rest, mt4 > > > > > center, mt3 center, plus a little tool box to hold the tools in > till you get a bench > > > > > made. I still miss the 7x12 tho, it was my first lathe and I > had lots of fun learning > > > > > with it. > > > > > Dennis > > > > > > > > > > > > It is indeed several times the lathe: > ; > 010x22%20LATHE/100_4028_edited.jpg > > > > > > > > (that's a 7x10, but close enough). > > > > > > > > Tony > > > > > > > > > > > > |
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Re: Charlie?
John Lindo
Yes,you are the one,I could not?remember?your last name,my yahoo mail went on the blink and i emptied all my e mails to solve the memory problem,which it did not,the problem was in my security files. Nice to see you on the postings again Charlie take care John L Spain.
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Re: Axis designations
Hi Dick,
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Now you are really confusing me. In message 69578 you said the on a lathe the Z axis was the long axis parallel to the lathe bed and also the spindle axis. Now you tell me that the spindle axis determine the x axis. Which is correct. Mike --- In 7x12minilathe@..., "Dick" wrote:
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Re: Real Bull 7x14 lathe questions?
¿ªÔÆÌåÓýI agree with your advice.? I started out with a cheap Harbor Freight (Seig) 7x10 , and upgraded it as I increased my skills and interest in machining. ?For small diameter work, they are not bad machines, and they can be a real bargain if you are within driving distance of a Harbor Freight store, and you have a 20% off coupon.? They are store stock items, so you can actually see it, rather than buying sight unseen.? Currently, the HF 7x10 is on sale for $499.? A 20% off coupon brings that down to $399.? If you pick it up, shipping costs are zero.? Even though it is a small lathe, that is an attractive offer for the budget minded who is otherwise looking at around $900 for an LMS, Micro Mark, or Big Dog lathe including shipping. ? From: 7x12minilathe@... [mailto:7x12minilathe@...] On Behalf Of gerry waclawiak
Sent: Friday, February 08, 2013 9:15 AM To: 7x12minilathe@... Subject: RE: [7x12minilathe] Re: Real Bull 7x14 lathe questions? ? ? Bob and others looking to buy a 7x lathe |
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Re: Axis designations
Ellis,
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It is not the work holding arrangement but the "main spindle axis" which determines the x axis. Dick --- In 7x12minilathe@..., "Ellis Cory" wrote:
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