|
Hi Mike,
May I make a comment please:
The original subject had nothing to do with the 7x12 mini-lathe
group name.
That said, since this off-topic wasn't criticized, I (and others)
felt free to diverge from the original thread.
I'm so sorry as well but, in the future, I strongly suggest that the
threads MUST be in line with the group name and I promise I'll
hardly stick to the rule.
Have a nice day. Regards
On 16.03.24 13:00, Miket_NYC via
groups.io wrote:
toggle quoted message
Show quoted text
I'm sorry to see that in discussions this group doesn't
ever seem to stay on the subject. This thread started with my
posts using nitric acid lto remove taps and drills from
aluminum.
Then it drifted to the related topic of doing
this with EDM machines, then it drifted to drilling and
tapping and now to helicoils, neither of which is related at
all to the subject.
This doesn't really affect my subject.? I wrote
what I wanted to say about nitric acid and there were several
useful responses, so people who want to learn about that can
see it, and people who want to learn about this in the future
will find it.?
But I feel sorry for people interested in EDM,
helicoils, and the other things being discussed. Those are all
now hidden under a subject line saying the discussion is about
acid, so there's not much chance casual readers will notice
them, now or in the future.??
So you're basically writing careful posts about
these things and, in terms of whether future readers will ever
find them, you might as well be flushing them down the toilet.
?So I wish people would have more discipline
about subject lines. To start a new topic, just change the
subject -- by even a single word. That will automatically
start a new thread with a relevant subject. If more people did
that, this group would be more useful.
Mike Taglieri?
Helicoils
can let down like heads of engines.?
They do make a insert that is solid like allen set screw
that works better.?
Dave?
Pierre-Raymond Rondelle
9:47am? ?
Helicoils are especially made for repairing
threaded holes
|
This group has posts about everything related to using a minilathe, not just the mechanics of the lathe itself. And that certainly includes drilling and tapping holes with them.??
And there are two kinds of people in this group -- people who've broken a tap and beginners who haven't done it yet. Which group are you in?
Mike Taglieri? On Sat, Mar 16, 2024, 9:43 AM Pierre-Raymond Rondelle via <pierreraymondrondelle= [email protected]> wrote:
Hi Mike,
May I make a comment please:
The original subject had nothing to do with the 7x12 mini-lathe
group name.
That said, since this off-topic wasn't criticized, I (and others)
felt free to diverge from the original thread.
I'm so sorry as well but, in the future, I strongly suggest that the
threads MUST be in line with the group name and I promise I'll
hardly stick to the rule.
Have a nice day. Regards
On 16.03.24 13:00, Miket_NYC via
wrote:
I'm sorry to see that in discussions this group doesn't
ever seem to stay on the subject. This thread started with my
posts using nitric acid lto remove taps and drills from
aluminum.
Then it drifted to the related topic of doing
this with EDM machines, then it drifted to drilling and
tapping and now to helicoils, neither of which is related at
all to the subject.
This doesn't really affect my subject.? I wrote
what I wanted to say about nitric acid and there were several
useful responses, so people who want to learn about that can
see it, and people who want to learn about this in the future
will find it.?
But I feel sorry for people interested in EDM,
helicoils, and the other things being discussed. Those are all
now hidden under a subject line saying the discussion is about
acid, so there's not much chance casual readers will notice
them, now or in the future.??
So you're basically writing careful posts about
these things and, in terms of whether future readers will ever
find them, you might as well be flushing them down the toilet.
?So I wish people would have more discipline
about subject lines. To start a new topic, just change the
subject -- by even a single word. That will automatically
start a new thread with a relevant subject. If more people did
that, this group would be more useful.
Mike Taglieri?
Helicoils
can let down like heads of engines.?
They do make a insert that is solid like allen set screw
that works better.?
Dave?
Pierre-Raymond Rondelle
9:47am? ?
Helicoils are especially made for repairing
threaded holes
|
It some most do om a mini is Tap.
Someone can break Tap in mini lathe.
Now what
It is like taking about chuck or some other tooling needs?
In using a mini lathe it something you will need to deal with.? There no sites with just Broken Tap?
Dave?
toggle quoted message
Show quoted text
Pierre-Raymond Rondelle
6:43am? ?
Hi Mike,
May I make a comment please:
The original subject had nothing to do with the 7x12 mini-lathe group name
|
I would suggest folks try to figure out how to not break taps. Since the 70s to now, I think I have broken two taps. Both in my earlier years. Granted I dont do alot everyday but still.
george
On Saturday, March 16, 2024 at 07:06:49 PM PDT, davesmith1800 <davesmith1@...> wrote:
It some most do om a mini is Tap.
Someone can break Tap in mini lathe.
Now what
It is like taking about chuck or some other tooling needs?
In using a mini lathe it something you will need to deal with.? There no sites with just Broken Tap?
Dave?
Pierre-Raymond Rondelle
6:43am? ?
Hi Mike,
May I make a comment please:
The original subject had nothing to do with the 7x12 mini-lathe group name
|
I tap on my mini lathe all the time, the trick is to keep the tap clear of chips by backing the tap out all the way, blow out the chips and use plenty of cutting fluid designed for the material that you are tapping.? If you break a tap removing the broken tap is hit-n-miss sometimes it can be done sometimes it can’t be done.? Keep the tap in perfect alignment with the work piece as well and take your time. Have A Great Day?? Tracy Ranson
It some most do om a mini is Tap.
Someone can break Tap in mini lathe.
Now what
It is like taking about chuck or some other tooling needs?
In using a mini lathe it something you will need to deal with.? There no sites with just Broken Tap?
Dave?
Pierre-Raymond Rondelle
6:43am? ?
Hi Mike,
May I make a comment please:
The original subject had nothing to do with the 7x12 mini-lathe group name
|
gcvisalia@...
I would suggest folks try to figure out how to not break taps. Since the 70s to now, I think I have broken two taps. Both in my earlier years. Granted I dont do alot everyday but still
At time I would tap thousands a day sooner or later it would happen.? Since they where large type I could get broken tap with mig welder.? But most do not have skill . So you may need toremoving a tap in your mini lathe. Now we need to talk. Dave?
|
I am one of the ones that questioned what an EDM was as I had never heard of one. I did break a tap in my HF mini lathe when adding the 16" bed extension. Luckily(?), mine broke at the hole nearest the headstock which is primarily not accessed. The instructions say to use only four bolts anyway (tapped five). I look at this group basically every day.? I have not even used the lathe yet nor fully finished putting it back together as I just had another back surgery a few days ago. These types of forums are where us newbies learn different things. I for one do not mind a slight drift in topics at times as long as it relates to the mini lathe. I also watched the video with the guy using the "lab" equipment with the magnetic stirrer to dissolve the tap in an aluminum piece after 20 hours. Nice demonstration but not really practical for a hobbyist to utilize, which is what I look for in these forums. For those that answered my queries on an off topic, thank you. I am trying to learn as much as possible.? Ron
|
In my case the tap broke on the fifth hole. I was just thinking to myself that this is a cheap tap and I need to get a better set (these were the Pittsburgh brand from HF that I got probably 30 years ago and was a tiny m3). Of course it snapped just as I was finishing the thought. I have not had many occasions over the years to drill and tap such a tiny hole and it happened. I am hoping that I will actually be able to use a lathe (my back) and get to learn a lot of this stuff. Remember not everyone has been doing this for years and years and some are trying to do it with physical limitations. I used to do carpentry work but can't cut a straight line anymore. We adapt.? A metal lathe is something i have always been fascinated with and hopefully be able to use and have some fun with. Ron
|
If ya don't drill & tap much that's where drill & tap
guides come in handy .
If ya have a drill press or access to one these a simple quick
jobs .
?
animal
On 3/17/24 4:43 AM, Ron Y wrote:
toggle quoted message
Show quoted text
In my case the tap broke on the fifth hole. I was just thinking to
myself that this is a cheap tap and I need to get a better set
(these were the Pittsburgh brand from HF that I got probably 30
years ago and was a tiny m3). Of course it snapped just as I was
finishing the thought. I have not had many occasions over the
years to drill and tap such a tiny hole and it happened. I am
hoping that I will actually be able to use a lathe (my back) and
get to learn a lot of this stuff. Remember not everyone has been
doing this for years and years and some are trying to do it with
physical limitations. I used to do carpentry work but can't cut a
straight line anymore. We adapt.? A metal lathe is something i
have always been fascinated with and hopefully be able to use and
have some fun with.
Ron
|
Looks good to me.
I will make a block when need.
But I look the looks of that tool?
Dave?
toggle quoted message
Show quoted text
mike allen
10:55am? ?
If ya don't drill & tap much that's where drill & tap guides come in handy .
If ya have a drill press or access to one these a simple quick jobs .
?https://www.ebay.com/itm/150689770337
animal
|
Most tapping is in drill press/mill or lathe. This how did my nut for cross slide 
|
Tap guides are great and fairly easy and cheap to make with proper tools and equipment.? I have plans to make one for myself out of 4140 which I can heat treat and make it more durable. ? Have A Great Day?? Tracy Ranson
On Sun, Mar 17, 2024 at 10:55?AM mike allen < animal@...> wrote:
If ya don't drill & tap much that's where drill & tap
guides come in handy .
If ya have a drill press or access to one these a simple quick
jobs .
?
animal
On 3/17/24 4:43 AM, Ron Y wrote:
In my case the tap broke on the fifth hole. I was just thinking to
myself that this is a cheap tap and I need to get a better set
(these were the Pittsburgh brand from HF that I got probably 30
years ago and was a tiny m3). Of course it snapped just as I was
finishing the thought. I have not had many occasions over the
years to drill and tap such a tiny hole and it happened. I am
hoping that I will actually be able to use a lathe (my back) and
get to learn a lot of this stuff. Remember not everyone has been
doing this for years and years and some are trying to do it with
physical limitations. I used to do carpentry work but can't cut a
straight line anymore. We adapt.? A metal lathe is something i
have always been fascinated with and hopefully be able to use and
have some fun with.
Ron
|
I'm glad to hear about the nitric acid method, although it feels like a last resort.? ?
To prevent tap breakage, I only go forward until the next flute, then back a little to break the chip.? ?Alignment is very important, however you achieve that.? ?On bigger taps you can feel a little resistance.I use a light cutting oil.? If I don't have that, I use water.? I hear kerosene is good for aluminum.
For removing a small screw or tap, I try to cut a screwdriver slot with a Dremel cutoff? wheel.? I know it's not always practical.
|
I have use a Dremel cutoff wheel but on small taps did work.
One way I used one time on a 2-56 in model airplane engine mount. A broken tap it work using a brass welding rod and grit . Took some time but grind down tap.?
Dave?
toggle quoted message
Show quoted text
Peter Way
12:55pm? ?
I'm glad to hear about the nitric acid method, although it feels like a last resort.? ?
To prevent tap breakage, I only go forward until the next flute, then back a little to break the chip. Alignment is very important, however you achieve that. On bigger taps you can feel a little resistance.I use a light cutting oil. If I don't have that, I use water. I hear kerosene is good for aluminum.
For removing a small screw or tap, I try to cut a screwdriver slot with a Dremel cutoff wheel. I know it's not always practical.
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