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Re: Turning Brass and Aluminum on a 7x14
Paul W. Chamberlain
I use brass strips from the local hobby shop. They come in 12" length, different thickness and widths. I cut them to size and form them around the jaws like a second skin. That way I don't need four hands to tighten the material in the chuck.
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If you heat the brass with a propane torch until red then quench it in water, it will anneal (soften) it and it is real easy to form. Paul, Central OR Smurf707 wrote: Cardbaord I have used, although that may not have a whole lot of precision when u do that so pop cans or some thing along those lines sounds like the best best. |
Re: 7x12 questions, I am new
Sean, You can find a lot of info that may answer your
questions here: Frank Hoose --- Smurf707 <smurf707@...> wrote: Hello I am an 18 yeard old machinist, I have about __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. |
Re: Basic problem? & a new question
Paul W. Chamberlain
Here it is:
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Paul, Central OR Jerry Smith wrote: Hi, |
Re: Basic problem? & a new question
fromday2
--- In 7x12minilathe@y..., "Capt Ken Appleby" <captkenn@m...> wrote:
Unfortunately, in the UK, Alum is no longer readily obtainable "at the local pharmacist.You might try a taxidermist shop or a garden shop, it has uses in both activities. I do not know from personal knowledge if potassium alum or aluminum sulfate give identical results. Seems to me that both are called alum. If it will save your castings it might be worth the time to do some web searching. Al Day |
Re: Basic problem? & a new question
Brice D. Hornback
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----- Original Message -----
From: "Jerry Smith" <jfsmith@...> To: <7x12minilathe@...> Sent: Tuesday, November 26, 2002 6:28 PM Subject: Re: [7x12minilathe] Re: Basic problem? & a new question Hi,Google can't find the URL. |
Re: Basic problem? & a new question
walsh2002bc
--- In 7x12minilathe@y..., "Capt Ken Appleby" <captkenn@m...> wrote:
Hi Mike,Yup...2mm is a little tough to work around. It reminds me though Capt. Ken that recently I saw an article on an extremely simple EDM that was just a vertical slide that lowered an electrode into a bowl of water. The power was from the mains with two light bulbs on each phase. The examples showed nice clean small cuts using wire rod with brazed shapes as electrodes. I've surfed by other edm projects on the net. If you'd like I'll try to look it up and scan it....It was in Home Shop Machinist some months ago I think. I have to confess Ken, I don't have a 7 x 12 but I've had a 7 x 10 for years. Although I'm in Canada I ordered the repair kit from Little Machine Shop and was more than pleased. It has replacements for all the driving gears, new driver transistors and belts and cross slide nut. The price is so low it may be worthwhile ordering from them and paying the shipping. I'm not aware of any similar supplier on your side. My preferance on the nut would be to buy a 10 x 1 mm LH tap and make my own but then I've never had the trouble. Give me email off line if you need the scans. Mike |
Re: Basic problem? & a new question
Jerry Smith
Hi,
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Does "Chris's terrific Little Machine Shop" have a website, Google can't find the URL. Thanks, Jerry would supply a minimum of 1Kilo (2.25 lbs) for ?50 ($75) which seems |
Re: Basic problem? & a new question
Capt Ken Appleby
Hi Mike,
In each case the drill is broken off below the surface and they are 2mm drills, so are quite small. I tried to do the Alum method advised by an earlier reply. Unfortunately, in the UK, Alum is no longer readily obtainable "at the local pharmacist". In fact "Boots" - the countries biggest chemist - is 'out of stock'. I was able to find an industrial supplier who eventually came back and said they would supply a minimum of 1Kilo (2.25 lbs) for ?50 ($75) which seems a bit drastic for the sake of three small broken bits! My 2nd question is this. There is Chris's terrific 'Little Machine Shop' in the US - is there anyone in the UK who keeps a similar supply of 7x12 parts? Chronos have a few items that fit our machines but nobody, on line, seems to supply a full range of spare parts?? Machine Mart stock parts but you can't order them on line and they don't keep them 'in store'. I have a broken cross slide nut (:o( and think while I am it I will get a few spares of other things (belts fuses gib strips etc) as they normally go when you need them most. Regards Ken --- In 7x12minilathe@y..., "walsh2002bc" <me.walsh@s...> wrote: Hi Ken:with a hammer and small drift. Sometimes just working it in differentdrilling onsomy lathe, I have broken two 2mm drills in two separate holes in a (ifthere is nothing to get hold of and there is not a lot of space Ican) and making a screw-in plug and milling it flush. |
Re: Turning Brass and Aluminum on a 7x14
Smurf707
Cardbaord I have used, although that may not have a whole lot of
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precision when u do that so pop cans or some thing along those lines sounds like the best best. Sean ----- Original Message -----lathe.com/Mini_lathe/Chucks/Back_plate/back_plate_2.htm#Stud s |
7x12 questions, I am new
Smurf707
Hello I am an 18 yeard old machinist, I have about 3.5 years as a
machinist/machinist in training. I am currently attending college for Precision Machnining Technology. I am used to big old lathes and mills, but I absolutely love machining and they are to big and bulky for my space, I have chosen on the smaller version, possible the Homier 7x12 because its $299 But what is this I hear about the 7x14 micro mark, how much is it, which would be a better buy? Thanks Sean |
Re: Indexable Inserts
Smurf707
From what I know, they are the same. Both are interchangeable with
each other pretty much, maybe 1 has a different coating? --- In 7x12minilathe@y..., "Brice D. Hornback" <bdh@c...> wrote: LMS has several different types of turning tools that take theindexable inserts. My question is, what's the difference between these twotypes of inserts? |
Re: Basic problem?
walsh2002bc
Hi Ken:
I hate it when that happens...I find that deeper holes in aluminum need to be cleaned out more so they won't bind 'cause it's gummy stuff. Try putting the workpiece in a vise and tapping the bit with a hammer and small drift. Sometimes just working it in different directions will loosen it off. mike --- In 7x12minilathe@y..., "Capt Ken Appleby" <captkenn@m...> wrote: Hi,on my lathe, I have broken two 2mm drills in two separate holes in aI can) and making a screw-in plug and milling it flush. |
Re: Basic problem?
fromday2
--- In 7x12minilathe@y..., "Capt Ken Appleby" <captkenn@m...> wrote:
Hi,on my lathe, I have broken two 2mm drills in two separate holes in aI can) and making a screw-in plug and milling it flush.Check this link, Al |
Re: Basic problem?
fromday2
--- In 7x12minilathe@y..., "Capt Ken Appleby" <captkenn@m...> wrote:
Hi,on my lathe, I have broken two 2mm drills in two separate holes in a Someone on the 7X10 minilathe group gave a reference to a site where it was stated that you can put an aluminum part in simmering water that is saturated with alum, (of the kind used for making pickles, (potassium alum?)), and the tap will begin to bubble a bit, when the bubbling stops, the tap is dissolved. You might want to ask this same question there and get the referenced site. Al |
Basic problem?
Capt Ken Appleby
Hi,
This might sound a bit basic but it has stumped me! While drilling on my lathe, I have broken two 2mm drills in two separate holes in a steam engine alluminium casting. They have both broken off flush so there is nothing to get hold of and there is not a lot of space around them. I have thought of over-drilling the whole lot out (if I can) and making a screw-in plug and milling it flush. Is the casting a write-off - Or is there another way? All help appreciated Regards Ken |
Re: Lathe Accuracy
It is the "old style" with the oil ports and way wipers on the carriage.
Frank Hoose <fhoose@...> wrote:Is it the "old style" or "new style" Homier? --- ntdefeo <ntdefeo@...> wrote: Good Morning All: __________________________________________________ Do you Yahoo!? Yahoo! Web Hosting - Let the expert host your site To unsubscribe from this group, send an email to: 7x12minilathe-unsubscribe@... Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service. --------------------------------- Do you Yahoo!? Yahoo! Web Hosting - Let the expert host your site |
Re: Lathe Accuracy
Is it the "old style" or "new style" Homier?
--- ntdefeo <ntdefeo@...> wrote: Good Morning All: __________________________________________________ Do you Yahoo!? Yahoo! Web Hosting - Let the expert host your site |
Re: 7X14 mini-lathe
Ah, yes, now I make the connection. :)
--- copascetic1@... wrote: In a message dated 11/15/2002 4:26:22 AM Atlantic Read your review many time before I purchased my __________________________________________________ Do you Yahoo!? Yahoo! Web Hosting - Let the expert host your site |
Re: 7X14 mini-lathe
Good! When I had described my situation of having to choose between the two
lathes, your comment was, humorously, "What a dilemma!". I was more or less in limbo not wanting to purchase any accessories not knowing which lathe I would keep, then the 7X14 came along and that solved my dilemma. It may seem strange to some that which ever lathe I had kept it would have been at no cost. However, I found the 7X14 suited my purpose and chose to buy it. Now I can proceed to purchase the accessories for the 7X14 such as a 4" 4-jaw, backplate, QCTP, etc. I have a mini-mill and have already purchased from you the clamp set. |
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