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--- In 7x12minilathe@..., Victoria Welch <wrlabs@...>
wrote:

"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

I 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 what

makes

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

Hi John,

On Tuesday 03 April 2007, born4something wrote:

Hi,

You mean like eBay item 150102904848? I've bought some of these and
thought them pretty cost effective. He seems to have wound up
listings today - probably having Easter off. But it's hard to beat
10c each!

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

On Tuesday 03 April 2007, born4something wrote:

--- In 7x12minilathe@..., Victoria Welch <wrlabs@...>

wrote:
One place down under I ordered a bunch of parts from that I was
really pleased with is Futurlec. MUCH cheaper than rat shack and
generally at very least the same if not better quality. Problem is
that shipping to the states takes FOREVER :-). IG (Instant
Gratification, takes too long to say :) isn't possible ;-). No
connection, just a happy customer.

Yes, I've bought a lot from them over the last year. Their prices
get even better on quantity but if you exceed their shelf quantity
on one item the whole order gets slowed by an extra month or so.

True, 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 :).

Not
sure which shopfront you went through but everything seems to ship
from Bangkok.

Ordered from :

Say, you're one diverse character. Here on a lathe
forum and knowing about RF connectors and obscure e-sources like
Futurlec. I thought you were a software guru. Is the e-hardware bit
another life?

Deeply 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

You can open it up to 13/16". In the "links" section of the 7x10 group
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

Hi John,

Ah yes, the grey matter's working today. I just searched the archives
and recalled sufficient key words (reamer+chris). Check out message
18553.

John

Hi Alan,

As Jim indicated, these things aren't critical as long as they can
handle the volts and amps of the application and are over-rated
sufficiently to handle the sub-standard heatsinking.

Re orientation, they are usually marked with '+' and '-' on the DC
terminals with the AC ones being marked either AC or '~'. The two AC
terminals are interchangeable. Often the '+' terminal will have a
chamfered corner, dot or some other marking to reduce assembly
errors. The PCB overlay usually (always, if I designed it) has
similar markings as well.

John



--- In 7x12minilathe@..., "Jim RabidWolf"
<unclerabid@...> wrote:

You need something that will handle at LEAST 8 amps (so it'll run

cool) and

at least 600 volts.

The OEM's are marked as 1000 volts 10 amps - 8amps at 1000 will do

as will

10 at 800 .... GIve me a yell if you have trouble finding one. IF

you'll

send me a the board number, I'll tell you what the original was.

Jim RabidWolf
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: "Alan Reeves" <goatfarm@...>
To: <7x12minilathe@...>
Sent: Tuesday, April 03, 2007 6:17 PM
Subject: [7x12minilathe] Mini-lathe controller rectifier question


I have a Homier Mini-lathe with a shorted bridged rectifier. I
removed the rectifier to see if I could buy another and have lost

the

darn thing. Does anyone know the part number? I had a rectifier

on

order but when it came it, it did not look like the old one. Also,
the rectifier is in the lower left of the circuit board when

looking

at that side, which way was the flat on the rectifier? I seem to
remember it was up and to the left. Any help would be appreciated.
Thanks

Alan



Be sure to check out for small

mills and

lathes.
Yahoo! Groups Links

Some where I read there is a way to Bore out the SPINDLE / HEADSTOCK
Does any one know where the information is and/or how much can it be
opened to?
Thanks;
John Fetz
928 680 4994

You need something that will handle at LEAST 8 amps (so it'll run cool) and
at least 600 volts.

The OEM's are marked as 1000 volts 10 amps - 8amps at 1000 will do as will
10 at 800 .... GIve me a yell if you have trouble finding one. IF you'll
send me a the board number, I'll tell you what the original was.

Jim RabidWolf
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!)

I have a Homier Mini-lathe with a shorted bridged rectifier. I
removed the rectifier to see if I could buy another and have lost the
darn thing. Does anyone know the part number? I had a rectifier on
order but when it came it, it did not look like the old one. Also,
the rectifier is in the lower left of the circuit board when looking
at that side, which way was the flat on the rectifier? I seem to
remember it was up and to the left. Any help would be appreciated.
Thanks

Alan

Hi,

You mean like eBay item 150102904848? I've bought some of these and
thought them pretty cost effective. He seems to have wound up
listings today - probably having Easter off. But it's hard to beat
10c each!

John


--- In 7x12minilathe@..., Victoria Welch <wrlabs@...>
wrote:

On Tuesday 03 April 2007, Jeff Demand wrote:

John,

If you are looking for 11.4mm x 5mm button cells (**357,

**44, *76

depending on the chemistry and drain) Radio shack sells 6

volt "n"

sized batteries which contain 4 cells. They might even offer the
choice of alkaline or silver oxide, it's been a while. Not as

cheap

as your pointers but might be fresher.

Bloody expensive as hell for those things from rat shack and at

those

prices I wonder how much they do move.

My caliper battery went dead and I went by rat shack and IIRC it

was

$6.95 for one from them.

Lived with the flashing display and ordered 10 of them from one of

the

battery places online for about a wash after shipping.

Even the grocery store had a 3 pack of them for less than that.

Pardon, but I think of rat shack in terms of desperation :-).

Take care, Vikki.
--
Victoria Welch, WV9K/7
"As you are, I once was. As I am, you will be." -inscription on a
tombstone (in Boston, I think)

--- In 7x12minilathe@..., Victoria Welch <wrlabs@...>
wrote:

One place down under I ordered a bunch of parts from that I was

really

pleased with is Futurlec. MUCH cheaper than rat shack and

generally at

very least the same if not better quality. Problem is that

shipping to

the states takes FOREVER :-). IG (Instant Gratification, takes

too

long to say :) isn't possible ;-). No connection, just a happy
customer.

Yes, I've bought a lot from them over the last year. Their prices
get even better on quantity but if you exceed their shelf quantity
on one item the whole order gets slowed by an extra month or so. Not
sure which shopfront you went through but everything seems to ship
from Bangkok. Say, you're one diverse character. Here on a lathe
forum and knowing about RF connectors and obscure e-sources like
Futurlec. I thought you were a software guru. Is the e-hardware bit
another life?

John

On Tuesday 03 April 2007, Jeff Demand wrote:

John,

If you are looking for 11.4mm x 5mm button cells (**357, **44, *76
depending on the chemistry and drain) Radio shack sells 6 volt "n"
sized batteries which contain 4 cells. They might even offer the
choice of alkaline or silver oxide, it's been a while. Not as cheap
as your pointers but might be fresher.

Bloody expensive as hell for those things from rat shack and at those
prices I wonder how much they do move.

My caliper battery went dead and I went by rat shack and IIRC it was
$6.95 for one from them.

Lived with the flashing display and ordered 10 of them from one of the
battery places online for about a wash after shipping.

Even the grocery store had a 3 pack of them for less than that.

Pardon, but I think of rat shack in terms of desperation :-).

Take care, Vikki.
--
Victoria Welch, WV9K/7
"As you are, I once was. As I am, you will be." -inscription on a
tombstone (in Boston, I think)

On Tuesday 03 April 2007, born4something wrote:

--- In 7x12minilathe@..., Victoria Welch <wrlabs@...>

wrote:

Where *do* the get these people?!??!?

Trustme, you DON"T want them employed in a workshop and be thankful.
They're being used to their limit right where they are!

LOL, now there is a good perspective on it all!

I've worked with the same types who managed to get into the high paying
world of the computer industry and spent more time fixing their stuff
than doing my own work and I would have indeed been thankful had they
been someplace else :-)!

Take care, V.
--
Victoria Welch, WV9K/7
"Democracy isn't just the best form of government; its the only one even
remotely worth a damn. Only democracy guarantees people get what they
deserve." -- Zeno Marley (Early 21st Century Mercenary-Philosopher)

Hi John,

On Tuesday 03 April 2007, born4something wrote:

--- In 7x12minilathe@..., Victoria Welch <wrlabs@...>

wrote:

:-), I usually rant a bit coming back from a desperation run to
rat shack, problem is that the have it locally - overpriced, almost
always clueless sales droids, not great quality, but it will do when
something MUST do.

Heh, I'l shut up too lest we have to start a 2 person group over
it ;-)

LOL!

Hi Vikki,

At the risk of making that the fastest growing group on Yahoo, I've
heard that these stores specifically select junior sales staff on
having pretty minimal expertise in electronics. Just enough to sell
stuff if the customer picks it off the shelf. If they know too much
then they get tied up in detailed free advice sessions at the
counter. That eats up man-hours as well as creating liability issues.

There is one other issue that was pointed out to me and that was if the
sales droids there actually knew something they would be directing you
elsewhere.

Known more than a few people who were knowledgeable who worked for them
briefly and left over issues like that :-(.

Now that they are selling more name brands, it may not be as much of an
issue assuming that the old rumor that they sell floor sweeping isn't
true :-).

That said, I have gotten some RF connectors from them that certainly
appear to be very good but still quit pricey. Forced to admit that the
higher price was offset by the fact I could get what I needed *now*.

We have one store here in the area that caters to parts people, a real
blessing.

For what it's worth Ian, Jaycar here in the east are a bit better
than that. Now Dick Smith is another matter...

One place down under I ordered a bunch of parts from that I was really
pleased with is Futurlec. MUCH cheaper than rat shack and generally at
very least the same if not better quality. Problem is that shipping to
the states takes FOREVER :-). IG (Instant Gratification, takes too
long to say :) isn't possible ;-). No connection, just a happy
customer.

Now if I could just plan 3 weeks or so ahead, they would be about
perfect :-). At those prices I can afford to stock up on stuff when I
do order though.

Take care, Vikki.
--
Victoria Welch, WV9K/7
“He who does not punish evil commands it to be done.” --Leonardo Da
Vinci

--- In 7x12minilathe@..., Victoria Welch <wrlabs@...>
wrote:

Where *do* the get these people?!??!?

Trustme, you DON"T want them employed in a workshop and be thankful.
They're being used to their limit right where they are!

John

--- In 7x12minilathe@..., Victoria Welch <wrlabs@...>
wrote:

:-), I usually rant a bit coming back from a desperation run to

rat

shack, problem is that the have it locally - overpriced, almost

always

clueless sales droids, not great quality, but it will do when

something

MUST do.

Heh, I'l shut up too lest we have to start a 2 person group over

it ;-)

LOL!

Hi Vikki,

At the risk of making that the fastest growing group on Yahoo, I've
heard that these stores specifically select junior sales staff on
having pretty minimal expertise in electronics. Just enough to sell
stuff if the customer picks it off the shelf. If they know too much
then they get tied up in detailed free advice sessions at the
counter. That eats up man-hours as well as creating liability issues.

For what it's worth Ian, Jaycar here in the east are a bit better
than that. Now Dick Smith is another matter...

John

On Tuesday 03 April 2007, born4something wrote:

[ ... ]
Well, I did get the broken tap out!

Eureka! Great feeling when a broken tap is sorted!

It sure was!

Trying to get around that to bore out the center more screwed up my
boring bar and I am still trying to figure out how to hone it down on
the diamond lap - it looks right but doesn't seem to cut as before. I
had the impression that carbide would remove the part of the tap
sticking down into the bore - apparently not.

Cost me a few PCB drills to figure it out, but one pays for education
one way or the other :).

Hopefully there will not be a next time to experiment with the

alum :-).

Oh yes there will. That's unless you're about to quit and sell up
your shop! But with more experience you should go further between
broken taps.

Hopefully that is indeed traumatizing :). Painful lessons are the best
learned?

Color me optimistic anyway :).

All's well that ends well and I learned a bunch in the process!

Can't hope for much better.

Very very true!

Hey here's a laugh for you. I dropped into the local Bunnings
Hardware down the road looking for a tap. As a hardware chain they
don't rate in my books but they are walking distance. When I asked
where they'd hidden the thread cutting taps (I couldn't find them in
the self serve settup) they called the rep from plumbing. I started
for the door before I had to explain it all again... Stop laughing
Ian - they're taking over hardware in SA too!

Sounds like Lowe's yesterday, I asked about alum at the service desk and
spent 5 minutes telling the sales droids that "Yes, I have looked on
this isle, that isle and the other isle and that one too" Finally I
suggested he look up "alum" on the computer in front of him. Seemed to
surprise him that he could do that. Where *do* the get these
people?!??!?

Sigh...

Thanks & take care, Vikki.
--
Victoria Welch, WV9K/7
"90% of the politicians give the other 10% a bad reputation." -- Henry
Kissinger

Hi Mick,

On Tuesday 03 April 2007, Michael Walter wrote:

Hi Vicky,
Sorry about the tap,but you did learn a valuable lesson concerning
cheap tools..

Sigh, sure did :-(. Problem is at my current level of ignorance /
inexperience I really don't know what a good one is. Is spending $10+
for one from, say Enco, a "good one". Sigh, much to learn - the more I
learn the more it becomes obvious how little I know :-).

I have an ulterior motive for replying to you! Where
did you find the design for your centre finder?

I faked it as I went along :-).

Initially (in my ignorance and nativity) I thought I could just get one,
tape the button down and chuck it up :).

After the folly of that thought train became obvious I knew I needed
something that would allow me to center it. Not sure where the idea
for the mount came from, probably the mechanical center finder hacked
to hold the laser pointer (I got mine stuck in a end mill holder and
had to pull it apart to get it out - it was hollow for the spring
connecting both center and edge ends, just make it bigger to hold the
laser pointer :-). Some of the commercial ones out there are contained
in something similar so I am sure that provided some inspiration.

The initial idea was optimistic on the bored out center diameter, I do
need to update the drawing of it I posted to reflect that.

With the variance from straight on these things, it became obvious
really quickly that I needed much more room to move the
stuffed-up-the-snout laser pointer around in it to actually get it to
center. Glad all I had was a 1" round to work with, anything else
would have been too small I think.

HTH!

Take care, Vikki.
--
Victoria Welch, WV9K/7
"Remember, democracy never lasts long. It soon wastes, exhausts, and
murders itself. There never was a democracy yet that did not commit
suicide." - John Adams.

On Tuesday 03 April 2007, rancerupp wrote:

Vikki, I'm sure I missed it somewhere along the way but would you
mind telling me where you got the $1 pointers? Thanks. :)

Found them at a "Dollar Store" I just happened to see as I was running
errands. I don't even remember the name but I do remember where it
is :-).

These abound here in Seattle (popular because cost of living is so high
here :-). Bargain Bin, 99 cents store and probably 100 other names.

Really cheap Chinese stuff and ?almost? all of it sells for under a
dollar.

After wandering around in several of them and never finding any laser
pointers, I got bright and asked if they had them at this last one and
he had a whole case of them behind the counter :-).

HTH!

Take care, Vikki.
--
Victoria Welch, WV9K/7
“He who does not punish evil commands it to be done.” --Leonardo Da
Vinci

Wow, what a pile of messages to wake up to :-)!

On Tuesday 03 April 2007, Ian Foster wrote:

G'day Vikki,
When you first reported on your laser edge finder developments you
said the beam size was disappointing. I take it from your pictures
that you have managed to narrow the beam.
Did you use a lens or a pin hole? How have you kept the focusing
device in place?

Upon the recommendation of John at GadgetBuilder I tried the pinhole in
a piece of kitchen aluminum foil which works really well to improve the
original spatter beam.

As for attachment, I used rubber cement on the end of the laser pointer
and the back of the aluminum foil - sorta like contact cement but
removable.

You can see this at the second entry under the temp stuff, specifically:



I've got an idea to improve on this using what is essentially a single
hole paper punch and the PCB drills. I got email from John that has
some pointers in it for improving this, but haven't done more than skim
it at this point (only starting on the second cup of coffee here :-).

To Others:
In Oz and now the UK Jaycar are selling Laser diodes with collimating
lens AUD9.95, or another module for AUD13.95. The forward voltage of
the diode is 2.3 volts so it could be powered from two AA cells
through a dropping resitor. Contact me it you need details.

MUCH better pricing than what I found, which was the impetus for using
the cheap laser pointers.

BTW I am NOT pushing Jaycar. I find their sales staff more useless
than those in machine tool stores. What is it about these kind of
people? (Other electronics stores are almost as bad, except for
Tandy) They act like they are doing you a favour by letting you have
some precious item from their personal collection. Haven't they heard
of up selling? "Do you want Fries (batteries) with that?" A few
questions about the customer's project would open up sales
opportunities. Thankfully I know enough (apart from the latest
gizmos) to intimiddate them back!!!
I'll write to Jaycar management.

Sounds like Radio Shack here (aka: rat shack, the floor sweeping
store, "How is your cell phone service" store, do you need batteries
store...) only somewhat better ;-). Where is the {some part} usually
results in the deer in the headlights look until you remind them they
have a computer to find out from. Etc. ...

Better get off the soap box before I get exiled to another group!

:-), I usually rant a bit coming back from a desperation run to rat
shack, problem is that the have it locally - overpriced, almost always
clueless sales droids, not great quality, but it will do when something
MUST do.

Heh, I'l shut up too lest we have to start a 2 person group over it ;-)
LOL!

Take care, Vikki.
--
Victoria Welch, WV9K/7
"I fly because it releases my mind from the tyranny of petty
things" --Antoine de St-Exupéry