Re: $1000 Budget: Which 7 x 14 to buy?
I bought a Speedway 7X12 about 20 years ago for $300.? Many mods later I am still happening with it.? I replaced the 3 inch 3 jaw chuck with a4 inch one from LMS.? Regards? John Mattis?
I will just say that I bought the original HF 10" lathe and used it for many, many years before buying a longer bed kit when they were on sale from LMS. So if you find a good lathe at a good?price, don't turn your nose up at it just because of the bed length. That can always be changed.
Mike Taglieri?
Here's something to think about when it comes to Chinese-made machinery. They are not the same thing even if they are products from the same factory or the same brand.
In china, cabbage, for example, ranges from cabbage that people should not eat to cabbage of the highest quality.
In my experience, the price of controlled Chinese machinery is about 80% of the price of American/European/Korean machinery.
I have two small lathe(Sakai MA-360 from Japan and WM210 from China).
I feel that precision mini lathes have become unprofitable for manufacturers these days.(So there are not many precision mini lathes)
?
Well-maintained used items are best.
To reduce your budget, it is better to shorten the lathe length.
Another thing to consider is the price of various accessories.
?
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Re: $1000 Budget: Which 7 x 14 to buy?
I will just say that I bought the original HF 10" lathe and used it for many, many years before buying a longer bed kit when they were on sale from LMS. So if you find a good lathe at a good?price, don't turn your nose up at it just because of the bed length. That can always be changed.
Mike Taglieri?
Here's something to think about when it comes to Chinese-made machinery. They are not the same thing even if they are products from the same factory or the same brand.
In china, cabbage, for example, ranges from cabbage that people should not eat to cabbage of the highest quality.
In my experience, the price of controlled Chinese machinery is about 80% of the price of American/European/Korean machinery.
I have two small lathe(Sakai MA-360 from Japan and WM210 from China).
I feel that precision mini lathes have become unprofitable for manufacturers these days.(So there are not many precision mini lathes)
?
Well-maintained used items are best.
To reduce your budget, it is better to shorten the lathe length.
Another thing to consider is the price of various accessories.
?
|
they probably hang out with the cocaine bear .
animal
On 12/15/23 9:14 PM, Mark Kimball
wrote:
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Show quoted text
It depends on how they "fly".? Them other quadrupeds might find
themselves in the same sleigh (AKA boat) if they ate Rudolph!? I
mean, reindeer are known to like eating some kinds of psychoactive
mushrooms, and the active ingredient carries over.....
Rudolph the FLYING reindeer -- after eating Amanita Muscaria! :)
NO, I have never been tempted to try them, although they are
really striking mushrooms.? Tales of bad experiences, plus a basic
decision to not go there, were enough for me!
Happy Holidays Every One
--Mark
|
Re: $1000 Budget: Which 7 x 14 to buy?
Here's something to think about when it comes to Chinese-made machinery. They are not the same thing even if they are products from the same factory or the same brand.
In china, cabbage, for example, ranges from cabbage that people should not eat to cabbage of the highest quality.
In my experience, the price of controlled Chinese machinery is about 80% of the price of American/European/Korean machinery.
I have two small lathe(Sakai MA-360 from Japan and WM210 from China).
I feel that precision mini lathes have become unprofitable for manufacturers these days.(So there are not many precision mini lathes)
?
Well-maintained used items are best.
To reduce your budget, it is better to shorten the lathe length.
Another thing to consider is the price of various accessories.
?
|
Re: 7x16 Spindle to Tailstock Alignment Test Outcome
Following that GadgetBuilder protocol, I cleaned surfaces, applied DyKem and mated the headstock and ways, sliding them 1/8" forwards and backwards. Contact areas are left and right rear flats and only the left outer prism. No contact unbolted on right prism. That must be a pivot contact, assuming it contacts at all when bolted. As my headstock appears to tilt up and back, maybe that¡¯s the first bolt I should snug? 
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Re: $1000 Budget: Which 7 x 14 to buy?
I went with 14" size Preenex? 8¡±x14¡± Mini Metal Lathe just for a little extra room .
I did think of 16" too but have stop on size .
I limit my decision by weight keeping under box weight 140 pounds. Two people can pickup 70 pounds each end. The box weight on my lathe is 130 pounds just right?
Dave?
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Re: 7x16 Spindle to Tailstock Alignment Test Outcome
Got a friend with a surface grinder? Setting the headstock up with the spindle bore parallel to the table and cleaning up the base of the headstock would do wonders! The cheap way might be to use small?shims until level and then apply a thin coat of filled epoxy before torquing the screws down. After hardening you should have a flat , true, and level headstock.
On Sat, Dec 16, 2023 at 7:42?AM CBJessee-N4SRN < cbjesseeNH@...> wrote: I¡¯ve got ¡°The Complete Mini-lathe workshop¡± on order, thanks.
As noted in??bolt torque appears to be good for only 0.0005-0.001¡± vertical at best and I¡¯m 0.008¡± high at 10¡± from the spindle, so it¡¯s looks like shims are the next option. Fortunately, I have some 0.001¡± brass shim stock to try - easy to cut with titanium scissors.
The headstock base has a nasty surface, with just a few contact points roughly ground for contact. Wiping with any cloth leaves fuzz, so I¡¯m flushing with WD-40 and blowing with canned air to clean the contact surfaces. Should those be flushed with solvent or is the lubricant film thickness below concern?
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It all in the Reindeer for flying.??
The Reindeer are test all time for flying.?
Dave?
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Yes - Santa exhibits quantum entanglement - he's everywhere all at once.? And if you observe him, he gets locked into a specific state.
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On 12/16/2023 9:09 AM, DAVID WILLIAMS via groups.io wrote: ?Spoilsport ???.
Seriously thanks for the calculations. Very very interesting¡..
However, may I point out that as he has,, in fact, magical powers eg. going
into houses or apartments where no chimney exists, giving the exact present(s)
the child wants with generally(?) no communication from either the parents or
the child - anything is in fact possible as the Einsteinium rules of the
Universe do not apply. Something must be happening¡¡.Te He. ???
David
UK
On 16 Dec 2023, at 12:40, David Everett via groups.io <dernh@...> wrote:
?
why all the interest in Santa Claus? Science has proved that he could never 'service' all the children round the world in one evening.
Here follows a scientific explanation for all the doubters (an oldie, but goody - to my mind!):
*Santa's trip, from an engineer's perspective.*
There are approximately two thousand million children (persons under 18)
in the world.
However, since Santa does not visit children of Muslim, Hindu, Jewish or Buddhist (except maybe in Japan) religions, this reduces the workload for Christmas night to 15% of the total, or 378 million according to the Population Reference Bureau.
At an average (census) rate of 3.5 children per household, that comes to 108 million homes, presuming that there is at least one good child in each. Santa has about 31 hours of Christmas to work with, thanks to the different time zones and the rotation of the earth, assuming he travels east to west (which seems logical). This works out to 967.7 visits per second.
Therefore, for each Christian household with a good child, Santa has around 1/1000th of a second to park the sleigh, hop out, jump down the chimney, fill the stockings, distribute the remaining presents under the tree, eat whatever snacks have been left for him, get back up the chimney, jump into the sleigh and get on to the next house.
Assuming that each of these 108 million stops is evenly distributed around the earth (which, of course, we know to be false, but will accept for the purposes of our calculations), we are now talking about 0.78 miles per household; a total trip of 75.5 million miles, not counting bathroom stops or breaks. This means Santa's sleigh is moving at 650 miles per second - 3,000 times the speed of sound. For purposes of comparison, the fastest man-made vehicle, the Ulysses space probe, moves at a mere 27.4 miles per second, and a conventional reindeer can run (at best) 15 miles per hour.
The payload of the sleigh adds another interesting element. Assuming that each child gets nothing more than a medium sized Lego set (two pounds), the sleigh is carrying over 500 thousand tons, not counting Santa himself. On land, a conventional reindeer can pull no more than 300 pounds. Even granting that the "flying" reindeer could pull ten times the normal amount, the job can't be done with eight or even nine of them - Santa would need 360,000 of them. This increases the payload,
not counting the weight of the sleigh, another 54,000 tons, or roughly seven times the weight of the Queen Elizabeth (the ship, not the monarch). 600,000 tons travelling at 650 miles per second creates enormous air resistance this would heat up the reindeer in the same fashion as a spacecraft re-entering the earth's atmosphere. The lead pair of reindeer would absorb 14.3 quintillion joules of energy per second each. In short, they would burst into flames almost instantaneously, exposing the reindeer behind them and creating deafening sonic booms in their wake.
The entire team of reindeer would be vaporized within 4.26 thousandths of a second, or at about the time Santa reached the fifth house on his trip. Not that it would matter since Santa, as a result of accelerating from a dead stop to 650 m.p.s. in .001 seconds, would be subjected to acceleration forces of 17,500 g's. A 250 pound Santa (which seems ludicrously slim) would be pinned to the back of the sleigh by 4,315,015 pounds of force, instantly crushing his bones and organs and reducing
him to a quivering blob of pink goo.
Therefore, if Santa ever did exist, he's dead now.
Merry Christmas
:o)
Dave
The Emerald Isle
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Re: 7x16 Spindle to Tailstock Alignment Test Outcome
I¡¯ve got ¡°The Complete Mini-lathe workshop¡± on order, thanks.
As noted in??bolt torque appears to be good for only 0.0005-0.001¡± vertical at best and I¡¯m 0.008¡± high at 10¡± from the spindle, so it¡¯s looks like shims are the next option. Fortunately, I have some 0.001¡± brass shim stock to try - easy to cut with titanium scissors.
The headstock base has a nasty surface, with just a few contact points roughly ground for contact. Wiping with any cloth leaves fuzz, so I¡¯m flushing with WD-40 and blowing with canned air to clean the contact surfaces. Should those be flushed with solvent or is the lubricant film thickness below concern?
|
? Spoilsport ???.?
Seriously thanks for the calculations. Very very interesting¡..?
However, ?may I point out that as he has,, in fact, magical powers eg. going into houses or apartments where no chimney exists, giving the exact present(s) the child wants with generally(?) no communication from either the parents or the child - anything is in fact possible as the Einsteinium rules of the Universe do not apply. Something must be happening¡¡.Te He. ???
David UK
toggle quoted message
Show quoted text
On 16 Dec 2023, at 12:40, David Everett via groups.io <dernh@...> wrote:
? why all the interest in Santa Claus?? Science has proved that he could never 'service' all the children round the world in one evening.
Here follows a scientific explanation for all the doubters (an oldie, but goody - to my mind!): Santa's trip, from an engineer's perspective.
There are approximately two thousand million children (persons under 18)
in the world.
However, since Santa does not visit children of Muslim, Hindu, Jewish or Buddhist (except maybe in Japan) religions, this reduces the workload for Christmas night to 15% of the total, or 378 million according to the Population Reference Bureau.
At an average (census) rate of 3.5 children per household, that comes to 108 million homes, presuming that there is at least one good child in each. Santa has about 31 hours of Christmas to work with, thanks to the different time zones and the rotation of the earth, assuming he travels east to west (which seems logical). This works out to 967.7 visits per second.
Therefore, for each Christian household with a good child, Santa has around 1/1000th of a second to park the sleigh, hop out, jump down the chimney, fill the stockings, distribute the remaining presents under the tree, eat whatever snacks have been left for him, get back up the chimney, jump into the sleigh and get on to the next house.
Assuming that each of these 108 million stops is evenly distributed around the earth (which, of course, we know to be false, but will accept for the purposes of our calculations), we are now talking about 0.78 miles per household; a total trip of 75.5 million miles, not counting bathroom stops or breaks. This means Santa's sleigh is moving at 650 miles per second - 3,000 times the speed of sound. For purposes of comparison, the fastest man-made vehicle, the Ulysses space probe, moves at a mere 27.4 miles per second, and a conventional reindeer can run (at best) 15 miles per hour.
The payload of the sleigh adds another interesting element. Assuming that each child gets nothing? more than a medium sized Lego set (two pounds), the sleigh is carrying over 500 thousand tons, not counting Santa himself. On land, a conventional reindeer can pull no more than 300 pounds.? Even granting that the "flying" reindeer could pull ten times the normal amount, the job can't be done with eight or even nine of them - Santa would need 360,000 of them. This increases the payload,
not counting the weight of the sleigh, another 54,000 tons, or roughly seven times the weight of the Queen Elizabeth (the ship, not the monarch).? 600,000 tons travelling at 650 miles per second creates enormous air resistance this would heat up the reindeer in the same fashion as a spacecraft re-entering the earth's atmosphere. The lead pair of reindeer would absorb 14.3 quintillion joules of energy per second each. In short, they would burst into flames almost instantaneously, exposing the reindeer behind them and creating deafening sonic booms in their wake.
The entire team of reindeer would be vaporized within 4.26 thousandths of a second, or at about the time Santa reached the fifth house on his trip. Not that it would matter since Santa, as a result of accelerating from a dead stop to 650 m.p.s. in .001 seconds, would be subjected to acceleration forces of 17,500 g's.? A 250 pound Santa (which seems ludicrously slim) would be pinned to the back of the sleigh by 4,315,015 pounds of force, instantly crushing his bones and organs and reducing
him to a quivering blob of pink goo.
Therefore, if Santa ever did exist, he's dead now.
Merry Christmas
|
Re: $1000 Budget: Which 7 x 14 to buy?
Recent posts above should dispel any consideration of the 7x"10" lathe.? ?This variant, 7x10, has been so advertised for decades, and it is NOT 10", it is 8".? ? You will quickly find the use of larger jobber length drill bits are not going to work on these lathes.? ?A 7x12 should be your choice as the smallest bed length - that size has 4" more space than the purported to be 7x10 lathe.
And to complete the lathe dimensions above;
7x16
31" W x 10" D x 12" H
--
Lone Tree, Colorado? ?USA
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why all the interest in Santa Claus?? Science has proved that he could never 'service' all the children round the world in one evening.
Here follows a scientific explanation for all the doubters (an oldie, but goody - to my mind!): Santa's trip, from an engineer's perspective.
There are approximately two thousand million children (persons under 18)
in the world.
However, since Santa does not visit children of Muslim, Hindu, Jewish or Buddhist (except maybe in Japan) religions, this reduces the workload for Christmas night to 15% of the total, or 378 million according to the Population Reference Bureau.
At an average (census) rate of 3.5 children per household, that comes to 108 million homes, presuming that there is at least one good child in each. Santa has about 31 hours of Christmas to work with, thanks to the different time zones and the rotation of the earth, assuming he travels east to west (which seems logical). This works out to 967.7 visits per second.
Therefore, for each Christian household with a good child, Santa has around 1/1000th of a second to park the sleigh, hop out, jump down the chimney, fill the stockings, distribute the remaining presents under the tree, eat whatever snacks have been left for him, get back up the chimney, jump into the sleigh and get on to the next house.
Assuming that each of these 108 million stops is evenly distributed around the earth (which, of course, we know to be false, but will accept for the purposes of our calculations), we are now talking about 0.78 miles per household; a total trip of 75.5 million miles, not counting bathroom stops or breaks. This means Santa's sleigh is moving at 650 miles per second - 3,000 times the speed of sound. For purposes of comparison, the fastest man-made vehicle, the Ulysses space probe, moves at a mere 27.4 miles per second, and a conventional reindeer can run (at best) 15 miles per hour.
The payload of the sleigh adds another interesting element. Assuming that each child gets nothing? more than a medium sized Lego set (two pounds), the sleigh is carrying over 500 thousand tons, not counting Santa himself. On land, a conventional reindeer can pull no more than 300 pounds.? Even granting that the "flying" reindeer could pull ten times the normal amount, the job can't be done with eight or even nine of them - Santa would need 360,000 of them. This increases the payload,
not counting the weight of the sleigh, another 54,000 tons, or roughly seven times the weight of the Queen Elizabeth (the ship, not the monarch).? 600,000 tons travelling at 650 miles per second creates enormous air resistance this would heat up the reindeer in the same fashion as a spacecraft re-entering the earth's atmosphere. The lead pair of reindeer would absorb 14.3 quintillion joules of energy per second each. In short, they would burst into flames almost instantaneously, exposing the reindeer behind them and creating deafening sonic booms in their wake.
The entire team of reindeer would be vaporized within 4.26 thousandths of a second, or at about the time Santa reached the fifth house on his trip. Not that it would matter since Santa, as a result of accelerating from a dead stop to 650 m.p.s. in .001 seconds, would be subjected to acceleration forces of 17,500 g's.? A 250 pound Santa (which seems ludicrously slim) would be pinned to the back of the sleigh by 4,315,015 pounds of force, instantly crushing his bones and organs and reducing
him to a quivering blob of pink goo.
Therefore, if Santa ever did exist, he's dead now.
Merry Christmas
|
It depends on how they "fly".? Them other quadrupeds might find themselves in the same sleigh (AKA boat) if they ate Rudolph!? I mean, reindeer are known to like eating some kinds of psychoactive mushrooms, and the active ingredient carries over.....
Rudolph the FLYING reindeer -- after eating Amanita Muscaria! :)
NO, I have never been tempted to try them, although they are really striking mushrooms.? Tales of bad experiences, plus a basic decision to not go there, were enough for me!
Happy Holidays Every One
--Mark
|
Re: $1000 Budget: Which 7 x 14 to buy?
What ralphie said is good sound advise . I just went to Grizzly
tools site cause its easier to do a comparison there . SO to go up
2" in bed length cost ya a extra 3" of width , the 9x19 is only 6"
wider at a cost of $$$.
What do ya want to be able to do with yer new lathe . I built
test equipment & assembly aids for 2 different computer co's
& I'm always lookin as far ahead as I can .? Alot of folks put
these lathes on bottom tool boxes . My South Bend 9" lathe is on a
32 x 80" solid core door & I have maybe 10-12 inches ov open
top on the headstock side & maybe 16-18 " on the tailstock
side . I wish my bench was a couple feet longer . My advise would
be if yer gonna go the bottom tool box route to get the longset
box ya can afford . Craigslist can be a good source for those tool
boxes dependin on yer hood .
Their 6x10 comes in at
- Overall size: 27-3/4" W x
11-1/2" D x 12" H
The 7x12
- Overall dimensions: 27-3/4" W
x 11-1/2" D x 12"H
7x14???
- Overall dimensions: 30" W x 9"
D x 10" H
8x16???
- Overall dimensions: 36" W x
16" D x 14" H
Their 9x19
- Overall dimensions: 37" W x
20" D x 15" H
animal
On 12/15/23 2:04 PM, Ralph Lehotsky
wrote:
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Remember, it's really on a 7 x 8, not a 7 x 10.? You'll wind up
replacing the bed with a longer one, as a 7 x 8 fills up fast with
a chuck in the tail and any size drill bit.? Think longer...
ralphie
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Re: $1000 Budget: Which 7 x 14 to buy?
I did not know that apart of HF lathe.
I came very close to buying one. The I did purchase is 13.8" CC and by time drill chuck it getting short too. But this was because I down size was problem and use to a shorter lathe.? Glad I miss that bullet.?
Dave?
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?Ralph Lehotsky 2:04pm? ?
Remember, it's really on a 7 x 8, not a 7 x 10. You'll wind up replacing the bed with a longer one, as a 7 x 8 fills up fast with a chuck in the tail and any size drill bit. Think longer...
ralphie
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Re: $1000 Budget: Which 7 x 14 to buy?
Remember, it's really on a 7 x 8, not a 7 x 10.? You'll wind up replacing the bed with a longer one, as a 7 x 8 fills up fast with a chuck in the tail and any size drill bit.? Think longer...
ralphie
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Re: $1000 Budget: Which 7 x 14 to buy?
I look at Harbor Freight?
Looks nice and does but turning at 2500 rpm.?
I got all belt drive and is quite to run.?
As longe can live gear noise it is a great mini lathe.?
Dave?
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Re: $1000 Budget: Which 7 x 14 to buy?
Search is on temporary hold.? Finally realizing I'm gonna actually get a lathe I first need to clear a spot for it. Bigger job than expected. Meanwhile all this is going int my decision.? I'm leaning toward Harbor Freight in case I need to return it. DIssapointed that LMS or Grizzly doesn't guarantee nice fit and finish. Might as well go with something locally returnable.
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Re: belt slip on Mini Lathe Machine with 600W
What little information the belt with 180¡ã rap 5 vee 12 mm poly belt can best at 1,800 rpm is ?hp / 370 watts. The best I? could find not very good information on power. If just simple calc at 3,600 rpm can go 1 hp / 740 watts so is basic ok on motors. But next reduction does not work the belt is going to slip even using simple calcs.?
On south Bend 9 in 1980's I used a poly v about 1" wide 4" dia at 800 rpm and never slipped on 1? hp DC motor
How tight can you tighten this belt ?
Dave
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John Mattis
davesmith1800
Ralph Lehotsky