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Source for machine shop info
Hello, Group! I found a source for a bit of somewhat esoteric and
possibly hard-to-find info on a Blacksmith Supply site! A company called Centaur Forge (been around a long time and well-known to many) has a selection of books I have not heard of before that sound interesting. The link is: www.centaurforge.com Look in the Books/Videos section. No connection to Centaur, just thought I would pass this along. Ron Keep makin' chips! |
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Re: Mini-lathe controller rectifier question
Jim RabidWolf
Alan, if you can send me a picture of the board, I can tell you how this is
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oriented. Normally, the rectifier that is used in these units is a sqaure with one corner cut of diagonally - that's the positive side - diagonally opposite corner is negative, the other two are AC. If you hold the board in your hand, with the terminal block for the motor, AC, etc., facing you, the upper right hand corner (towards the middle of the board) is the positive. JRW Uncle Rabid ( ) We Repair Electronic Speed Controllers For Asian Mini Lathes and Mini Mills "Just Crazy Enough To Get the Job Done" (Join Rabid's Lathe/Mill Controller/Mod's List!) (Also visit BarStockEngines - join us in building without Castings!) ----- Original Message -----
From: "born4something" <ajs@...> To: <7x12minilathe@...> Sent: Wednesday, April 04, 2007 12:00 AM Subject: [7x12minilathe] Re: Mini-lathe controller rectifier question Hi Alan, These things are often chassis mounted for heatsinking. Hence the bolt hole in the middle. That's why Jim was making a point of saying you needed a device that would be well within its ratings as your application doesn't have it bolted down. If you like (and have space) you can bolt a small heatsink to it or even extend it on longer wires to mount on the casting. However, the usual approach on a PCB is to simply use an over-rated device - they're pretty cheap. If it just blows again you likely have some other issue causing it. John --- In 7x12minilathe@..., "Alan Reeves" <goatfarm@...> wrote: which looks like it will handle 1000v and 10A, but what threw me was thethe board to see if I can figure stuff out as to the orientation.Thanks againwrote: can DChandle the volts and amps of the application and are over-rated two ACterminals with the AC ones being marked either AC or '~'. The aterminals are interchangeable. Often the '+' terminal will have runchamfered corner, dot or some other marking to reduce assembly will docool) andat least 600 volts. IFas will10 at 800 .... GIve me a yell if you have trouble finding one. was.you'llsend me a the board number, I'll tell you what the original questionCastings!) lost rectifierthedarn thing. Does anyone know the part number? I had a Also,onorder but when it came it, it did not look like the old one. tothe rectifier is in the lower left of the circuit board whenlookingat that side, which way was the flat on the rectifier? I seem appreciated.remember it was up and to the left. Any help would be smallThanks mills andlathes. Be sure to check out for small mills and lathes. Yahoo! Groups Links |
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Re: Book recommendation for a newbie
"The Amateur's Lathe" is available from Amazon in the US (if that's where
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you are) for $25.95 in paperback. Of course, you're probably better off if you can find it on eBay. John ----- Original Message -----
From: R. Roll To: 7x12minilathe@... Sent: Wednesday, April 04, 2007 8:49 AM Subject: Re: [7x12minilathe] Book recommendation for a newbie I want to thank everyone for your advice and suggestions. Buying a bunch of books about metal working usually wouldn't be a problem, but a lot of the books that I found on Amazon.com and other places are expensive and often don't have enough reviews or other information to really tell how useful they would be. I've already busted my budget with the purchase of the lathe and some basic tooling, and there's still some more stuff that I need to buy besides more books. I've learned that a lot of the "old" books can be useful. The South Bend lathe manuals in particular seem to be highly recommended, and they're also very inexpensive and sometimes free. So I'll probably buy at least one of them the next time I place an order with LMS. Sparry's "The Amateur's Lathe" was recommended by a couple of people, but it seems to be available only in the UK and it takes 4-6 weeks to arrive from Amazon.UK. So I've started looking for a copy on eBay. I also like the recommendation for "The Home Machinist's Handbook" by Doug Brines. Amazon.com let me look inside the book and and it had good reviews. It's only about $14 and it includes some projects that I can build, so it may be my next purchase. I hadn't thought of it until this morning, but I'm going to go to a large Border's bookstore to see if they have any other books that I can look at before I buy one. Thanks again for all your help. Rob __________________________________________________________ Don't get soaked. Take a quick peek at the forecast with the Yahoo! Search weather shortcut. |
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Re: Book recommendation for a newbie
I want to thank everyone for your advice and suggestions. Buying a
bunch of books about metal working usually wouldn't be a problem, but a lot of the books that I found on Amazon.com and other places are expensive and often don't have enough reviews or other information to really tell how useful they would be. I've already busted my budget with the purchase of the lathe and some basic tooling, and there's still some more stuff that I need to buy besides more books. I've learned that a lot of the "old" books can be useful. The South Bend lathe manuals in particular seem to be highly recommended, and they're also very inexpensive and sometimes free. So I'll probably buy at least one of them the next time I place an order with LMS. Sparry's "The Amateur's Lathe" was recommended by a couple of people, but it seems to be available only in the UK and it takes 4-6 weeks to arrive from Amazon.UK. So I've started looking for a copy on eBay. I also like the recommendation for "The Home Machinist's Handbook" by Doug Brines. Amazon.com let me look inside the book and and it had good reviews. It's only about $14 and it includes some projects that I can build, so it may be my next purchase. I hadn't thought of it until this morning, but I'm going to go to a large Border's bookstore to see if they have any other books that I can look at before I buy one. Thanks again for all your help. Rob ____________________________________________________________________________________ Don't get soaked. Take a quick peek at the forecast with the Yahoo! Search weather shortcut. |
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Re: homier
Michael Taglieri
If you mean you live in an apartment, I used my lathe and a drill press
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that way for years. The regular splash guard will keep much of the swarf from escaping backwards and sideways, and building a similar vertical guard around the back and sides of your work bench will also help. For swarf that escapes to the front, an open drawer in the work bench will catch quite a bit, and a magnet near the tool will also help, if you're cutting steel. Finally, a shop vac held near the tool will catch all kinds of metal, but will also create a lot of noise. Mike Taglieri miket--nyc@... Everyone has his reasons. - Jean Renoir "The Rules of the Game" On Mon, 19 Mar 2007 16:37:39 -0000 "fricebe" <fricebe@...> writes: hi all
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Re: Mini-lathe controller rectifier question
Hi Alan,
These things are often chassis mounted for heatsinking. Hence the bolt hole in the middle. That's why Jim was making a point of saying you needed a device that would be well within its ratings as your application doesn't have it bolted down. If you like (and have space) you can bolt a small heatsink to it or even extend it on longer wires to mount on the casting. However, the usual approach on a PCB is to simply use an over-rated device - they're pretty cheap. If it just blows again you likely have some other issue causing it. John --- In 7x12minilathe@..., "Alan Reeves" <goatfarm@...> wrote: which looks like it will handle 1000v and 10A, but what threw me was thethe board to see if I can figure stuff out as to the orientation.Thanks againwrote: can DChandle the volts and amps of the application and are over-rated two ACterminals with the AC ones being marked either AC or '~'. The aterminals are interchangeable. Often the '+' terminal will have runchamfered corner, dot or some other marking to reduce assembly will docool) andat least 600 volts. IFas will10 at 800 .... GIve me a yell if you have trouble finding one. was.you'llsend me a the board number, I'll tell you what the original questionCastings!) lost rectifierthedarn thing. Does anyone know the part number? I had a Also,onorder but when it came it, it did not look like the old one. tothe rectifier is in the lower left of the circuit board whenlookingat that side, which way was the flat on the rectifier? I seem appreciated.remember it was up and to the left. Any help would be smallThanks mills andlathes. |
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Re: Book recommendation for a newbie
Michael Taglieri
My two favorite books for the kind of lathes we use are "The Amateur's
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Lathe" by L.H. Sparey (Argus Books 1948, ISBN 0 85242 288 1) and "Using the Small Lathe" by L.C. Mason (Argus Books 1963, ISBN 0 85242 139 7). The great thing about both of these books is that they tell you how to do things on a lathe that you'd be doing on a different machine if you were working in a real machine shop, and they tell you how to do things that actually should be done on a bigger lathe than the one you have. They don't replace South Bend's classic text "How to Run a Lathe" and similar books, but supplement them. I believe both of them have been reprinted and are currently available. Mike Taglieri miket--nyc@... Everyone has his reasons. - Jean Renoir "The Rules of the Game" On Mon, 02 Apr 2007 18:33:15 -0000 "rroll99" <rroll99@...> writes: I was wondering if the group has a consensus about what would be a |
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Re: Mini-lathe controller rectifier question
Thanks for the responses. The rectifier I bought was a NTE53004 which
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looks like it will handle 1000v and 10A, but what threw me was the different form (this one has a hole in the middle) I will look on the board to see if I can figure stuff out as to the orientation. Thanks again --- In 7x12minilathe@..., "born4something" <ajs@...> wrote:
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Re: First prototype of the laser edge/center finder done!
G'day Rance.
I am not an imposter I am the Ian Foster! Alias Steam4ian. I don't know how my identity got revealed, anyhow I don't think I have too much to be ashamed of. One good turn deserves another. Regards, Ian --- In 7x12minilathe@..., "rancerupp" <rupps@...> wrote: Are you an imposter? Are you one and the same? :) I just have toask, "Will the real Ian please stand up". |
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Re: First prototype of the laser edge/center finder done! (drifting OT)
Victoria Welch
On Tuesday 03 April 2007, Ian Foster wrote:
G'day VikkiLiving my life is like Mad Magazine LOL :)! The content is great but the best part is the marginal drwings, inI but stand on the shoulders of giants :-). Thanks Ian. I've been collecting quotes that struck me somehow forever now and have accumulated quite a pile. I have a script here (randsig) that pulls one out of the file and plops a new one in my .signature for every email :-). I do so love linux :-)! Take care, Vikki. -- Victoria Welch, WV9K/7 "Two of the gravest general dangers to survival are the desire for comfort and a passive outlook." -- U.S. Army Ranger Handbook |
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Re: First prototype of the laser edge/center finder done!
Victoria Welch
On Tuesday 03 April 2007, born4something wrote:
Strangely, a lot of wisdom from a science fiction author...[ ... ] Specialization is for insects." -- Robert HeinleinI love it. Guess I identify too. Haven't done the sonnets. And I'm I've also never done a sonnet nor yet died gallantly, but these days the opportunity could come at any time :-(. Those are the perfect (IMO) jobs, paid to play! You were indeed lucky!Just always had a fascination about how things were made and whatYep. That's what got me into electronics. Also led me to spending a Now what was that about laser edge finders? I think that was theErr, I think so :-). Now that I have all the errands and other required tasks for the day done (and caught up on mail :-) I can get back into the shop and play, err work on the edge finder some more. Someone passed me a link to one of the commercial edge / center finders and it is supposed to be usable from 1-4", what I posted on the web page was done at 6", not sure what that means, will have to play with it some and see. Fun! Take care, Vikki. -- Victoria Welch, WV9K/7 "Sometimes, I think the proof that intelligent life exists elsewhere in the Universe is that it hasn't contacted us." -- Rick Lyons |
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Re: First prototype of the laser edge/center finder done!
Who'd a thunk it. Thanks John. :) Man are those things getting cheap.
--- In 7x12minilathe@..., "John" <John@...> wrote: and you have to ask for them. |
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Re: through bore (same ? for the HF8x12)
So how about for the HF 8x12. Max dimensions we can ream to? And will
the same reamer work, just drilling deeper? IMWTK. --- In 7x12minilathe@..., "roylowenthal" <roylowenthal@...> wrote: group there's something for "Al's Reamer", since it was Varmint Al whoHEADSTOCK beDoes any one know where the information is and/or how much can it opened to? |
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Re: First prototype of the laser edge/center finder done!
Ok Ian, I have to ask. Why are you pilfering steam4ian's tag line. Are
you an imposter? Are you one and the same? :) I just have to ask, "Will the real Ian please stand up". PS: Thanks for the wisdom you impart to the group. --- In 7x12minilathe@..., "Ian Foster" <fosterscons@...> wrote:
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Re: First prototype of the laser edge/center finder done! (drifting OT)
G'day Vikki
Reading you posts is like reading "Mad" magazine! The content is great but the best part is the marginal drwings, in your case the quotes. They are brilliant! "A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects." Robert Heinlein Please keep them up. One good turn deserves another. Regards Ian |
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Re: First prototype of the laser edge/center finder done!
--- In 7x12minilathe@..., Victoria Welch <wrlabs@...>
wrote: invasion, butcher a hog, conn a ship, design a building, write a sonnet,balance accounts, build a wall, set a bone, comfort the dying, takeorders, give orders, cooperate, act alone, solve equations, analyze a newfight efficiently, die gallantly. Specialization is for insects."Robert HeinleinI love it. Guess I identify too. Haven't done the sonnets. And I'm not sure about the dieing bit. But amazingly I've tried the rest in one way or another! Just always had a fascination about how things were made and whatmakes them tick :-).Yep. That's what got me into electronics. Also led me to spending a quarter century in a defence research lab designing and testing a lot of "experimental stuff" that I can't detail. A lot of multi- skilling. Now what was that about laser edge finders? I think that was the topic... John |
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Re: First prototype of the laser edge/center finder done!
Victoria Welch
Hi John,
On Tuesday 03 April 2007, born4something wrote: Hi,Wow, that is a LOT better than what I did! bookmarked that guy :). IIRC I got mine from here: Could have been elsewhere, but we get a lot of our batteries from those folks. Take care, Vikki. -- Victoria Welch, WV9K/7 "A society that will trade a little liberty for a little order will lose both, and deserve neither." -- Thomas Jefferson |
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Re: First prototype of the laser edge/center finder done!
Victoria Welch
On Tuesday 03 April 2007, born4something wrote:
--- In 7x12minilathe@..., Victoria Welch <wrlabs@...>wrote: Yes, I've bought a lot from them over the last year. Their pricesTrue, I turned on a friend to them and something he wanted they were out of (or didn't have enough, not sure) was holding up the order, he canceled those until next order and they shipped the rest. He still thinks I am kidding about the FOREVER part :). NotOrdered from : Say, you're one diverse character. Here on a latheDeeply interested in the universe in which I live, is my best excuse :). Although I didn't find this for years after I started practicing it, it is probably the best way to describe myself: "A human being should be able to change a diaper, plan an invasion, butcher a hog, conn a ship, design a building, write a sonnet, balance accounts, build a wall, set a bone, comfort the dying, take orders, give orders, cooperate, act alone, solve equations, analyze a new problem, pitch manure, program a computer, cook a tasty meal, fight efficiently, die gallantly. Specialization is for insects." Robert Heinlein Just always had a fascination about how things were made and what makes them tick :-). Never did know my place :-) and whatever else might be said about my parents, they never forced me into any mold, just let me study what interested me :-). Growing up in a military family probably had some bearing on this. Take care, Vikki. -- Victoria Welch, WV9K/7 "Before Guadalcanal the enemy advanced at his pleasure -- after Guadalcanal he retreated at ours." - Admiral "Bull" Halsey |
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Re: through bore
You can open it up to 13/16". In the "links" section of the 7x10 group
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there's something for "Al's Reamer", since it was Varmint Al who started the whole thing. There are a couple of reamers circulating around from user to user. Chris (of LMS fame) provides adult supervision to keep things moving. Roy --- In 7x12minilathe@..., "John" <botmom@...> wrote:
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