On 12/09/2012 12:01 PM, MERTON B BAKER wrote:
Okay, then what holds
'em on, then?
?
Mert
Flared ends on the tubes.
--
Jerry Durand, Durand Interstellar, Inc.
tel: +1 408 356-3886, USA toll free: 1 866 356-3886
Skype: jerrydurand
|
Okay, then what holds 'em on,
then?
?
Mert
?
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The
toothed bits move independently of the ring body, no need for
solder.
?
Tony
?
?
?
I would make the toothed rings in two
pieces.
First, cut the teeth across the end of a tube (with an even
number of teeth you could cut right across and cut opposite teeth in a single
operation)
Then solder/braze/sweat the toothed ring over a smaller
tube which would form the main body of the part.
Ian
On 9 Dec 2012, at
10:42, "MERTON B BAKER" <mertbaker@...>
wrote:
?
And I wouldn't run my fingers thru the hair
on my head, wearing one of those
either. Looks like an excellent device
for testing Murphy's Law. How
would you cut the ring
gears?
Mert
-----Original Message-----
From: 7x12minilathe@...
[mailto:7x12minilathe@...]On
Behalf Of Jerry Durand
Sent: Saturday, December 08, 2012 10:37 PM
To:
7x12minilathe@...
Subject:
Re: [7x12minilathe] Mechanical Ring
I showed the videos to my wife
who said "I hope you don't have
hairy
fingers!"
ouch!
--
Jerry Durand, Durand
Interstellar, Inc.
tel: +1 408
356-3886, USA toll free: 1 866 356-3886
Skype:
jerrydurand
------------------------------------
Yahoo! Groups
Links
|
That's possibly the way they were made, but If so,
the seam is undetectable.? Maybe pressed on?? There's not much force
involved here.
?
Mert
?
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Hi Mert,
I would make the toothed rings in two pieces.
First, cut the teeth across the end of a tube (with an even number of
teeth you could cut right across and cut opposite teeth in a single
operation)
Then solder/braze/sweat the toothed ring over a smaller tube which would
form the main body of the part.
All the best,
Ian On 9 Dec 2012, at 10:42, "MERTON B BAKER" < mertbaker@...>
wrote:
?
And I wouldn't run my fingers thru the hair on my head, wearing one of
those
either. Looks like an excellent device for testing Murphy's Law.
How
would you cut the ring gears?
Mert
-----Original
Message-----
From: 7x12minilathe@...
[mailto:7x12minilathe@...]On
Behalf Of Jerry Durand
Sent: Saturday, December 08, 2012 10:37 PM
To:
7x12minilathe@...
Subject:
Re: [7x12minilathe] Mechanical Ring
I showed the videos to my wife
who said "I hope you don't have
hairy
fingers!"
ouch!
--
Jerry Durand, Durand
Interstellar, Inc.
tel: +1 408
356-3886, USA toll free: 1 866 356-3886
Skype:
jerrydurand
------------------------------------
Yahoo! Groups
Links
|
Re: Bearing seal for front tapered roller bearing?
Thanks, John
Dick
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--- In 7x12minilathe@..., "GadgetBuilder" <John@...> wrote:
In the Files section see the zip file near the end titled:
tapered-roller-bearing.zip
This contains a description of the bearing change process, including pictures and a description of how to make seals.
John
--- In 7x12minilathe@..., "Dick" <old_toolmaker@> wrote:
I am installing tapered roller bearings in my 7x lathe headstock. In reading various postings on the subject I have noted that some people have used o rings and some have used automotive gasket material to prevent swarf from reaching the unsealed front bearing. I have been considering using a felt wiper gasket under the bearing cover.
I welcome input on this topic and look forward to hearing about how you have addressed this issue.
Thanks
Dick
|
Hi Ian,
I haven't looked real closely at the design, but I wonder if one could cut across the end of a solid round with a single tooth gear cutter, keeping in mind your idea of an even number of teeth, and then bore it out, turn the outside to the desired shape, then part it off to avoid having to solder or braze (?). Just a thought.
Frank
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--- In 7x12minilathe@..., Ian 1 <ian_new@...> wrote:
Hi Mert,
I would make the toothed rings in two pieces.
First, cut the teeth across the end of a tube (with an even number of teeth you could cut right across and cut opposite teeth in a single operation)
Then solder/braze/sweat the toothed ring over a smaller tube which would form the main body of the part.
All the best,
Ian
On 9 Dec 2012, at 10:42, "MERTON B BAKER" <mertbaker@...> wrote:
And I wouldn't run my fingers thru the hair on my head, wearing one of those
either. Looks like an excellent device for testing Murphy's Law. How
would you cut the ring gears?
Mert
-----Original Message-----
From: 7x12minilathe@...
[mailto:7x12minilathe@...]On Behalf Of Jerry Durand
Sent: Saturday, December 08, 2012 10:37 PM
To: 7x12minilathe@...
Subject: Re: [7x12minilathe] Mechanical Ring
I showed the videos to my wife who said "I hope you don't have hairy
fingers!"
ouch!
--
Jerry Durand, Durand Interstellar, Inc. www.interstellar.com
tel: +1 408 356-3886, USA toll free: 1 866 356-3886
Skype: jerrydurand
------------------------------------
Yahoo! Groups Links
|
The toothed bits move independently of the ring body, no need for solder. ? Tony ? ? ? I would make the toothed rings in two pieces. First, cut the teeth across the end of a tube (with an even number of teeth you could cut right across and cut opposite teeth in a single operation) Then solder/braze/sweat the toothed ring over a smaller tube which would form the main body of the part.
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On 9 Dec 2012, at 10:42, "MERTON B BAKER" < mertbaker@...> wrote: ? And I wouldn't run my fingers thru the hair on my head, wearing one of those
either. Looks like an excellent device for testing Murphy's Law. How
would you cut the ring gears?
Mert
-----Original Message-----
From: 7x12minilathe@...
[mailto:7x12minilathe@...]On Behalf Of Jerry Durand
Sent: Saturday, December 08, 2012 10:37 PM
To: 7x12minilathe@...
Subject: Re: [7x12minilathe] Mechanical Ring
I showed the videos to my wife who said "I hope you don't have hairy
fingers!"
ouch!
--
Jerry Durand, Durand Interstellar, Inc.
tel: +1 408 356-3886, USA toll free: 1 866 356-3886
Skype: jerrydurand
------------------------------------
Yahoo! Groups Links
|
Hi Mert,
I would make the toothed rings in two pieces.
First, cut the teeth across the end of a tube (with an even number of teeth you could cut right across and cut opposite teeth in a single operation)
Then solder/braze/sweat the toothed ring over a smaller tube which would form the main body of the part.
All the best, Ian
toggle quoted message
Show quoted text
On 9 Dec 2012, at 10:42, "MERTON B BAKER" < mertbaker@...> wrote:
?
And I wouldn't run my fingers thru the hair on my head, wearing one of those
either. Looks like an excellent device for testing Murphy's Law. How
would you cut the ring gears?
Mert
-----Original Message-----
From: 7x12minilathe@...
[mailto:7x12minilathe@...]On Behalf Of Jerry Durand
Sent: Saturday, December 08, 2012 10:37 PM
To: 7x12minilathe@...
Subject: Re: [7x12minilathe] Mechanical Ring
I showed the videos to my wife who said "I hope you don't have hairy
fingers!"
ouch!
--
Jerry Durand, Durand Interstellar, Inc.
tel: +1 408 356-3886, USA toll free: 1 866 356-3886
Skype: jerrydurand
------------------------------------
Yahoo! Groups Links
|
Thanks, Andy. Feel free to add any of the pics I send to my "Album".
Mert
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-----Original Message----- From: 7x12minilathe@... [mailto:7x12minilathe@...]On Behalf Of andyf1108 Sent: Sunday, December 09, 2012 5:58 AM To: 7x12minilathe@... Subject: [7x12minilathe] Re: 3mt to 3c adapter? Hi Mert, Yahoo does allow attachments, but doesn't check them for viruses, so for safety's sake the 7x12 Group doesn't permit them. I have taken the liberty of opening an album in the group's Photos section, with the imaginative title of "Mert's Album", and have put your two pics in it. I hope this is OK; if not, please say so and I'll delete it. If you approve, and ever want to add any further pics, send them to one of the moderators (John GadgetBuilder, Trevor Rymell or me) and we will then upload them for you. Pictures have to be sent to a moderator for inclusion in albums, to prevent anything unsuitable being uploaded. Andy --- In 7x12minilathe@..., "MERTON B BAKER" <mertbaker@...> wrote:
Oops! Yahoo doesn't allow attachments, I'll have to resend it direct, off
list. Send me an email direct. >>mertbaker at verizon dot net<<
Mert
-----Original Message-----
From: 7x12minilathe@...
[mailto:7x12minilathe@...]On Behalf Of Exibar
Sent: Saturday, December 08, 2012 8:15 PM
To: 7x12minilathe@...
Subject: RE: [7x12minilathe] 3mt to 3c adapter?
Hi Mert!
Yah, that would be great if you wouldn't mind? The only thing I like
more than tools are making tools for myself ;-)
I found an adapter for $35, is that a good price? Maybe the reason I
like making my on tools is because I realy DON"T like the look my wife
gives me when I buy them! LOL :-)
thanks!
Mike B
From: 7x12minilathe@... [mailto:7x12minilathe@...] On Behalf Of MERTON B BAKER
Sent: Saturday, December 08, 2012 4:18 AM
To: 7x12minilathe@...
Subject: RE: [7x12minilathe] 3mt to 3c adapter?
Wow! Boy, can I read that without my glasses! You can make a closer and drawtube for 3-C collets right on the 7x, if you want. I can send you pix
of the one I made.
Mert
-----Original Message-----
From: 7x12minilathe@...
[mailto:7x12minilathe@...]On Behalf Of Exibar
Sent: Friday, December 07, 2012 8:11 PM
To: 7x12minilathe@...
Subject: [7x12minilathe] 3mt to 3c adapter?
If I were to purchase this adapter:
from LMS to convert 3MT to 3C, what else would I need other than that
adapter?
I'd like to use a factory made 1/4" hex collet, and I can only find
them in 3c. which isn't too bad in cost, about $12. The adapter is $60,
which is a bit steep, but maybe workable with wife's permission..... I'm
just wondering if there is anything else that I'd need? the LMS site
doesn't have anything else on there :-(
anyone have one of the adapters they're not using and would like to
sell? :-)
thanks!
Mike B
------------------------------------ Yahoo! Groups Links
|
Hi Mert,
Yahoo does allow attachments, but doesn't check them for viruses, so for safety's sake the 7x12 Group doesn't permit them.
I have taken the liberty of opening an album in the group's Photos section, with the imaginative title of "Mert's Album", and have put your two pics in it. I hope this is OK; if not, please say so and I'll delete it.
If you approve, and ever want to add any further pics, send them to one of the moderators (John GadgetBuilder, Trevor Rymell or me) and we will then upload them for you. Pictures have to be sent to a moderator for inclusion in albums, to prevent anything unsuitable being uploaded.
Andy
toggle quoted message
Show quoted text
--- In 7x12minilathe@..., "MERTON B BAKER" <mertbaker@...> wrote:
Oops! Yahoo doesn't allow attachments, I'll have to resend it direct, off
list. Send me an email direct. >>mertbaker at verizon dot net<<
Mert
-----Original Message-----
From: 7x12minilathe@...
[mailto:7x12minilathe@...]On Behalf Of Exibar
Sent: Saturday, December 08, 2012 8:15 PM
To: 7x12minilathe@...
Subject: RE: [7x12minilathe] 3mt to 3c adapter?
Hi Mert!
Yah, that would be great if you wouldn't mind? The only thing I like
more than tools are making tools for myself ;-)
I found an adapter for $35, is that a good price? Maybe the reason I
like making my on tools is because I realy DON"T like the look my wife gives
me when I buy them! LOL :-)
thanks!
Mike B
From: 7x12minilathe@... [mailto:7x12minilathe@...]
On Behalf Of MERTON B BAKER
Sent: Saturday, December 08, 2012 4:18 AM
To: 7x12minilathe@...
Subject: RE: [7x12minilathe] 3mt to 3c adapter?
Wow! Boy, can I read that without my glasses! You can make a closer and
drawtube for 3-C collets right on the 7x, if you want. I can send you pix
of the one I made.
Mert
-----Original Message-----
From: 7x12minilathe@...
[mailto:7x12minilathe@...]On Behalf Of Exibar
Sent: Friday, December 07, 2012 8:11 PM
To: 7x12minilathe@...
Subject: [7x12minilathe] 3mt to 3c adapter?
If I were to purchase this adapter:
from LMS to convert 3MT to 3C, what else would I need other than that
adapter?
I'd like to use a factory made 1/4" hex collet, and I can only find
them in 3c. which isn't too bad in cost, about $12. The adapter is $60,
which is a bit steep, but maybe workable with wife's permission..... I'm
just wondering if there is anything else that I'd need? the LMS site
doesn't have anything else on there :-(
anyone have one of the adapters they're not using and would like to
sell? :-)
thanks!
Mike B
|
And I wouldn't run my fingers thru the hair on my head, wearing one of those
either. Looks like an excellent device for testing Murphy's Law. How
would you cut the ring gears?
Mert
toggle quoted message
Show quoted text
-----Original Message-----
From: 7x12minilathe@...
[mailto:7x12minilathe@...]On Behalf Of Jerry Durand
Sent: Saturday, December 08, 2012 10:37 PM
To: 7x12minilathe@...
Subject: Re: [7x12minilathe] Mechanical Ring
I showed the videos to my wife who said "I hope you don't have hairy
fingers!"
ouch!
--
Jerry Durand, Durand Interstellar, Inc. www.interstellar.com
tel: +1 408 356-3886, USA toll free: 1 866 356-3886
Skype: jerrydurand
------------------------------------
Yahoo! Groups Links
|
Oops!? Yahoo doesn't allow attachments, I'll
have to resend it direct, off list. Send me an email direct. >>mertbaker
at verizon dot net<<
Mert
?
toggle quoted message
Show quoted text
Hi
Mert!
?
Yah, that would be great if you wouldn't mind?? The only thing I like
more than tools are making tools for myself ;-)
?
?
I found an adapter for $35, is that a good price?? Maybe the reason I
like making my on tools is because I realy DON"T like the look my wife gives
me when I buy them!? LOL :-)
?
?
thanks!
Mike
B
?
From:
7x12minilathe@... [mailto:7x12minilathe@...] On
Behalf Of MERTON B BAKER
Sent: Saturday, December 08, 2012 4:18
AM
To: 7x12minilathe@...
Subject: RE:
[7x12minilathe] 3mt to 3c adapter?
?
?
Wow!?
Boy, can I read that without my glasses!? You can make a closer and
drawtube for 3-C collets right on the 7x, if you want.? I can send you
pix of the one I made.
-----Original
Message-----
From: 7x12minilathe@...
[mailto:7x12minilathe@...]On
Behalf Of Exibar
Sent: Friday, December 07, 2012 8:11
PM
To: 7x12minilathe@...
Subject:
[7x12minilathe] 3mt to 3c adapter?
If I were to
purchase this adapter:
?
?
from LMS to
convert 3MT to 3C, what else would I need other than that
adapter?
?
? I'd
like to use a factory made 1/4" hex collet, and I can only find them in
3c.? which isn't too bad in cost, about $12.? The adapter is $60,
which is a bit steep, but maybe workable with wife's permission.....?
I'm just wondering if there is anything else that I'd need?? the LMS
site doesn't have anything else on there :-(
?
anyone have
one of the adapters they're not using and would like to sell?
:-)
?
?
thanks!
? Mike
B
|
First pic is the whole rig installed on my 7x10.?
In the second you can see the #3MT closer & it's internal closing taper in
the spindle.? I made the drawtube out of a section of sawn off 20 ga
shotgun barrel,but any 3/4" OD tube with walls thick enuf for the collet thread
would be OK.? I cut the internal threads on my 12x lathe, because it has
both an 80 thread gearbox, and a 30 rpm slow speed with the back gears in. The
closer was turned on the 7X, because I have a locating hole drilled in the
topslide protractor for #2 Tapers.? The stock was set in the 3
jaw,?thru bored for the collet shank, the #3 taper turned on the outside,
parted off, and set in the spindle to face & bore the closing taper.
the handwheel was bolted to the big washer that was
hard soldered (after fitting) to the Drawbar end, and then turned to the
handwheel shape on the lathe.? The whole procedure was written up in one of
the HSM issues some years ago, for?5C collets, and for a big lathe with a
#5 spindle taper.? I just scaled things down to 3-C for the
7X.
?
Mert
?
toggle quoted message
Show quoted text
Hi
Mert!
?
Yah, that would be great if you wouldn't mind?? The only thing I like
more than tools are making tools for myself ;-)
?
?
I found an adapter for $35, is that a good price?? Maybe the reason I
like making my on tools is because I realy DON"T like the look my wife gives
me when I buy them!? LOL :-)
?
?
thanks!
Mike
B
?
From:
7x12minilathe@... [mailto:7x12minilathe@...] On
Behalf Of MERTON B BAKER
Sent: Saturday, December 08, 2012 4:18
AM
To: 7x12minilathe@...
Subject: RE:
[7x12minilathe] 3mt to 3c adapter?
?
?
Wow!?
Boy, can I read that without my glasses!? You can make a closer and
drawtube for 3-C collets right on the 7x, if you want.? I can send you
pix of the one I made.
-----Original
Message-----
From: 7x12minilathe@...
[mailto:7x12minilathe@...]On
Behalf Of Exibar
Sent: Friday, December 07, 2012 8:11
PM
To: 7x12minilathe@...
Subject:
[7x12minilathe] 3mt to 3c adapter?
If I were to
purchase this adapter:
?
?
from LMS to
convert 3MT to 3C, what else would I need other than that
adapter?
?
? I'd
like to use a factory made 1/4" hex collet, and I can only find them in
3c.? which isn't too bad in cost, about $12.? The adapter is $60,
which is a bit steep, but maybe workable with wife's permission.....?
I'm just wondering if there is anything else that I'd need?? the LMS
site doesn't have anything else on there :-(
?
anyone have
one of the adapters they're not using and would like to sell?
:-)
?
?
thanks!
? Mike
B
|
Hi Marcos,
You can index using the lathe and change wheels and also perform any milling required (with a bit of ingenuity).
The gears are simple and low precision and would be straight forward to make by hand, or you could buy a length of pinion wire and part off gears as required.
There is an automatic assumption that using a machine is the best or only way to make something - I have a lathe and a mill and use them when hand tools are not appropriate. ?It is often quicker to cut and file by hand than to set-up a job on a machine.
Look at what watchmakers produced with a pair of turns.....
All the best, Ian.
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On 9 Dec 2012, at 08:01, "Marcos" < stilettomantool@...> wrote:
?
Just a 7x16 lathe. I might have to save up for a mini mill.
--- In 7x12minilathe@..., Aquila wrote:
>
> What machines do you have available??
> Unless you intend filing the teeth by hand, a small mill?and a rotary table are almost essential, and even then due to the size of the parts it will be tedious work.
> Ideally a CNC mill with the rotab as the 4th axis would be best.?
> You could cut and size the parts on your lathe then transfer them to a chuck or collet on the rotab for correct indexing to a cutter on the mill.
>
|
I'm not entirely sure I'm correct. The way I think it is you have the large (right hand) piece of the ring, it has a flange on it The left is similar. There are holes drilled and slots for the shafts. The first gear ring goes on, then the gears drop into the holes. The pins slide in next (held in either by the flange or the gear ring), then the left-hand side is pressed on. You'd think the gears would be pressed into the ring, but that doesn't seem to be the case. It's mostly a low precision piece (cast pieces?) so maybe that's the trade-off, trying to reduce any precision machining. You could always buy one to see how it works. Tony Thanks for the details.
--- In 7x12minilathe@..., "Tony Smith" <ajsmith1968@...>
wrote:
Can some one please teach me how to make this.
Whenever you see the word 'patent', head over to Google:
Unfortunately this is only a design patent, so the details are
missing. A design patent isn't a 'real' patent, but anyway.
You need to look closely, but there are a few hints. The big one is
the ring is in two halves, on the picture you can see the line where
the left half is pressed on.
The holes in the gears are countersunk, so the shafts are flared (or
flanged) to stop them coming out (like wood screws). The trick is
where the shafts poke out under the gears they have a hole drilled
though them.
There's a pin used to lock the shafts on.
I'm guessing the groove on top of the shafts is used to align them
during assembly, this would be needed if the left half & pins were one
piece. Or it's just decorative.
So make the right half, drill to hold the shafts (but not through the
ring), drop the gears on, slide in the locking pins, and press the left half on.
My initial thought was the gears were bevelled, and the rack was also
in the opposite direction just enough to stop them falling out. I found
this: but it's wrong - it doesn't
match the patent drawings.
That's quite a fiddly build. Good luck!
Tony
|
Thanks for the details.
toggle quoted message
Show quoted text
--- In 7x12minilathe@..., "Tony Smith" <ajsmith1968@...> wrote:
Can some one please teach me how to make this.
Whenever you see the word 'patent', head over to Google:
Unfortunately this is only a design patent, so the details are missing. A
design patent isn't a 'real' patent, but anyway.
You need to look closely, but there are a few hints. The big one is the
ring is in two halves, on the picture you can see the line where the left
half is pressed on.
The holes in the gears are countersunk, so the shafts are flared (or
flanged) to stop them coming out (like wood screws). The trick is where the
shafts poke out under the gears they have a hole drilled though them.
There's a pin used to lock the shafts on.
I'm guessing the groove on top of the shafts is used to align them during
assembly, this would be needed if the left half & pins were one piece. Or
it's just decorative.
So make the right half, drill to hold the shafts (but not through the ring),
drop the gears on, slide in the locking pins, and press the left half on.
My initial thought was the gears were bevelled, and the rack was also in the
opposite direction just enough to stop them falling out. I found this:
but it's wrong - it doesn't match
the patent drawings.
That's quite a fiddly build. Good luck!
Tony
|
Just a 7x16 lathe. I might have to save up for a mini mill.
toggle quoted message
Show quoted text
--- In 7x12minilathe@..., Aquila <myycc0q0@...> wrote:
What machines do you have available??
Unless you intend filing the teeth by hand, a small mill?and a rotary table are almost essential, and even then due to the size of the parts it will be tedious work.
Ideally a CNC mill with the rotab as the 4th axis would be best.?
You could cut and size the parts on your lathe then transfer them to a chuck or collet on the rotab for correct indexing to a cutter on the mill.
|
I showed the videos to my wife who said "I hope you don't have hairy
fingers!"
ouch!
--
Jerry Durand, Durand Interstellar, Inc. www.interstellar.com
tel: +1 408 356-3886, USA toll free: 1 866 356-3886
Skype: jerrydurand
|
Re: Threading for the first time
I am quite lazy :-) This one works great if you are of a similar persuasion (unfortunately the site says not in stock right now).
Paul
(in Jamaica).
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----- Original Message ----- From: "CLevinski" <clevinski@...> To: <7x12minilathe@...> Sent: Wednesday, December 05, 2012 10:06 PM Subject: [7x12minilathe] Re: Threading for the first time OK, looks like I need to make a hand-crank for the mini-lathe...
Thanks to all for their suggestions and comments!
Charlie
--- In 7x12minilathe@..., "CLevinski" <clevinski@...> wrote:
Hi, All,
I'm going to try single-point threading for the first time. I've read up on the procedure, and I figure the best way is to just jump in and give it a try. I'll initially make a 3/8-24 thread, only because it's big enough for me to really see the progress as it develops. But what I would really like to make for use after that is a 5 mm thread. These are, I believe, a 0.8 mm pitch. My goal is to make some thumbscrews to hold the gear cover on my lathe without having to use a hex key to get it off. My question is whether this is too fine a thread for me to do as a beginner? Are there any special tricks?
I guess it really doesn't matter; if I screw it up (pun intended), I'll just try it again.
Thanks,
Charlie
------------------------------------
Yahoo! Groups Links
|
Hi Mert! ? Yah, that would be great if you wouldn't mind?? The only thing I like more than tools are making tools for myself ;-) ? ? I found an adapter for $35, is that a good price?? Maybe the reason I like making my on tools is because I realy DON"T like the look my wife gives me when I buy them!? LOL :-) ? ? thanks! Mike B ?
toggle quoted message
Show quoted text
From: 7x12minilathe@... [mailto:7x12minilathe@...] On Behalf Of MERTON B BAKER
Sent: Saturday, December 08, 2012 4:18 AM
To: 7x12minilathe@...
Subject: RE: [7x12minilathe] 3mt to 3c adapter?? ? Wow!? Boy, can I read that without my glasses!? You can make a closer and drawtube for 3-C collets right on the 7x, if you want.? I can send you pix of the one I made. -----Original Message-----
From: 7x12minilathe@... [mailto:7x12minilathe@...]On Behalf Of Exibar
Sent: Friday, December 07, 2012 8:11 PM
To: 7x12minilathe@...
Subject: [7x12minilathe] 3mt to 3c adapter? If I were to purchase this adapter: ?
? from LMS to convert 3MT to 3C, what else would I need other than that adapter? ? ? I'd like to use a factory made 1/4" hex collet, and I can only find them in 3c.? which isn't too bad in cost, about $12.? The adapter is $60, which is a bit steep, but maybe workable with wife's permission.....? I'm just wondering if there is anything else that I'd need?? the LMS site doesn't have anything else on there :-( ? anyone have one of the adapters they're not using and would like to sell? :-) ? ? thanks! ? Mike B
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Can some one please teach me how to make this.
Whenever you see the word 'patent', head over to Google: Unfortunately this is only a design patent, so the details are missing. A design patent isn't a 'real' patent, but anyway. You need to look closely, but there are a few hints. The big one is the ring is in two halves, on the picture you can see the line where the left half is pressed on. The holes in the gears are countersunk, so the shafts are flared (or flanged) to stop them coming out (like wood screws). The trick is where the shafts poke out under the gears they have a hole drilled though them. There's a pin used to lock the shafts on. I'm guessing the groove on top of the shafts is used to align them during assembly, this would be needed if the left half & pins were one piece. Or it's just decorative. So make the right half, drill to hold the shafts (but not through the ring), drop the gears on, slide in the locking pins, and press the left half on. My initial thought was the gears were bevelled, and the rack was also in the opposite direction just enough to stop them falling out. I found this: but it's wrong - it doesn't match the patent drawings. That's quite a fiddly build. Good luck! Tony
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OldToolmaker