-----Original Message-----
From: 7x12minilathe@... [mailto:7x12minilathe@...] On Behalf Of Exibar
Sent: Friday, December 07, 2012 5:11 PM
To: 7x12minilathe@...
Subject: [7x12minilathe] 3mt to 3c adapter?

?

If I were to purchase this adapter:

http://littlemachineshop.com/products/product_view.php?ProductID=2240

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

?

On 12/08/2012 09:12 AM, Marcos wrote:
> Do you think the tubes have some kind of locking lip that you have to press together?
>

I was thinking the tubes telescoped inside each other and the screws go
through both.

--
Jerry Durand, Durand Interstellar, Inc.
tel: +1 408 356-3886, USA toll free: 1 866 356-3886
Skype: jerrydurand

I want to put a 4" rotary table on ly 7x16. Is it possible. Im sure it is but need some guidance. I have yet to see one on a lathe.

On 12/07/2012 10:19 PM, Marcos wrote:

Can some one please teach me how to make this.

Without seeing it up close, I'd say you have the upper and lower gears
as you can see. These are held in by two tubes with flared ends
(T-shape in side view). One tube fits inside the other and the screws
from the planetary gears go through both tubes to lock it.

Anyway, that's my first impression.

--
Jerry Durand, Durand Interstellar, Inc. www.interstellar.com
tel: +1 408 356-3886, USA toll free: 1 866 356-3886
Skype: jerrydurand

Hi Alex,

I think I speak for everyone to say that we are pleased if we have been able to help, that is what the group is all about.

Personally I would get in touch with Amadeal, they are a good company and I know they have helped other group members in Europe with machines and spares. The part is listed at 8 UKP or about 10Euros plus shipping.

Gerry W
Leeds UK

To: 7x12minilathe@...
From: christiansen_alex@...
Date: Fri, 7 Dec 2012 19:37:04 +0000
Subject: [7x12minilathe] Re: potmeter with swicth for 7X12






























hi John, Gerry and Andy.

thank you so much..

I try to get one from one of the firms mentioned here.



I have time to wait the time it take to send it, it was just not so nice to wait for ARC ,not knowing how long.



I would not try to clean it as I have the control box on the table, and if it dont work well I have to do it all again.

and about the pot.. yes its 4k7 curve B ,so the one from ARC is correct.



about the lathe.. I was asking SIEG,at the time I bought it,wether it was a C2 or C3..SIEG did answer ,yes its a C2..

later I learned here in the group that it was a Real bull.. it has all the extras like adjustment for leadscrew..

think I can conclude that Einhell bt ml 300 is a real bull and type 2C

alex

-----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:

?

http://littlemachineshop.com/products/product_view.php?ProductID=2240

?

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

It certainly does help! Thank you all very much!

I can't seem to find MT3 hex collets.. But plenty of 5c hex collets... Only 5c chuck I saw was almost 300 bucks... That ain't gunna happen.... Anyone know of a source for MT3 hex 1/4" collets? Or a cheap 5c chuck?

How accurate could I get putting a hex into a round collet? Or is that just silly to even think about?

Thanks all!
Mike B
Sent via BlackBerry by AT&T

-----Original Message-----
From: John Kiely <john_kiely@...>
Sender: 7x12minilathe@...
Date: Thu, 6 Dec 2012 13:13:44
To: 7x12minilathe@...<7x12minilathe@...>
Reply-To: 7x12minilathe@...
Subject: Re: [7x12minilathe] Question about turning down and runout

I favour a 4 jaw chuck as the other guys have mentioned. You will need a good DTI?to go with it! Two chuck keys for the 4 jaw makes lining up easier.
If using a minilathe with a 4 jaw chuck you might have to shorten the arms/wings on the Chuck Key to fit on the inside/offside of the lathe. Space there is on certain lathes is at a premium.
If you are turning softer metals just beware that the metal can score and dig in to the chuck jaws resulting in the work piece drifting. In this case, use lighter cuts and don't squeeze the jaws too tight.
Collets are expensive, for a small run you could try a piece of hard wood in the jaws. Drill a hole with?a drill bit in the?tailstock?to fit your work piece and use a screw to hold the piece in place. It's not very hardwearing but for a small amount of use and softer metals?it's perfect.
If you don't have a 4 jaw chuck you can always try using some shims between the jaws and the workpiece to get everything bang on?
For perfect accurate and repeatable work look in to using collets as others have already suggested.
Hope some of this helps?
?
John Kiely (IRL)


________________________________
From: Exibar <exibar@...>
To: 7x12minilathe@...
Sent: Thursday, December 6, 2012 5:52 PM
Subject: [7x12minilathe] Question about turning down and runout

Ok, so here's an interesting 'something' that I'd like thoughts on...

? First of all, I went through and ensured that my lathe is spot on with alignment, shaft not bent, chuck is spinning true (well, less than .003, about .0025 runout), etc etc

? So, I take a 6 inch piece of .050" round bar I got from Lowes, chuck it up ( 4", 3 jaw chuck), check with dial gauge and it's running true (needle swings about .001ish) and turn down about an inch and quarter down to 5/16'ths....? Check the new section and it's dead on, dial indicator barely vibrates it moves so little....
? ? I then part it off, remove the large piece from the chuck and then chuck up the freshly turned down section....? And what happens?? It has over .010" of runout....? What the heck?? Shouldn't that be running true?
? If I turn it in the chuck and then retighten, I can lessen the runout down to slight over .005...? But this is a piece that was running dead nuts on before...


? I haven't pulle my crossslide off and cleaned inspected that assembly, I always suspect the gibs...? I should check LMS for a new set of gibs... At least to cross that off the list...

? Any thoughts guys?? Is this odd or too be expected?? I don't recall ever running into this type of issue before :-(


? Thanks!
? Mike B
Sent via BlackBerry by AT&T

------------------------------------

Yahoo! Groups Links



? ?

---

From: alex4459jopiklal44
To: 7x12minilathe@...
Sent: Friday, December 7, 2012 5:44 PM
Subject: [7x12minilathe] potmeter with swicth for 7X12

?

hello all memebers
I have the "Einhell mtb 300" minilathe
with a KBLC-240d controll board

I turned very slowly ,and did make the lathe stall..
Then It would not run anymore...
Each time I turn the speed controller to off.. and turning on again, the chuck moves a few centimeters.. trying in reverse gave the same result.
I did not think I had overloaded the regulator ,so I tried to find the reason.. with the pot ,that connect when off, in mind, I looked at this switch..
it is the switch that are defective.. it sometimes make contact and sometimes are not effectiv closed.. it often make a short short when I turn on the speedcontroller.

Well no need to examine how and why.. the switch in the speed control is not good anymore.

Then I looked at ARC in UK for buying a new one.. they have them , but it is out of stock.

finally.. hope someone sometime can use this mail ,if he have the same problem and
second.. Do any of you know of another supplier here in Europe
thanks for listening
alex
Denmark