S7 plus to connoiseur upgrade

[Bjorn_B]

http://www.modelenginemaker.com/index.php/topic,369.0.html

Impressive, a good evenings read in that thread..

[steamer]

Thanks Bjorn, she's a sweetheart!   Very accurate, and.....NOW.....brand new!

Dave

[ths]

I'm pretty sure my Super-7B has a 60-tooth bullwheel, and does the ML7R. I was under the impression that the ML7 has a 55T bullwheel.
AS

Definitely 65 teeth on the ML7. Hugh.

[Bjorn_B]

Got the spindle to within 0,01mm/200mm in direction upwards and about 0,02mm/200mm to the front with some light scraping of the headstock casting underside, there where some high spots there. This can be improved upon, but I won't this time.

[Bjorn_B]

Spot the fault...

[Bjorn_B]

Much better!

[steamer]

Looking good!!!

Dave

[Bjorn_B]

Thanks dave, bashed a pinky (finger) installing the clutch shaft the second time, need sympathy.. And a pint..

[Bjorn_B]

Hi Bjorn, this is an interesting upgrade. I assume that the parts were from Myford? It looks as though you have the headstock off the bed, as well as the gearbox. I seem to remember that the bull wheel was 67 teeth, did they ever go back to 60? My ML7 has 65, but 67 seems fairly useless as a dividing basis. Are the new pulleys cast iron? Hope that this works out well for you. Cheers, Hugh.

Hugh! Yes, myford parts all over, did cost an arm and a leg but I will never be happy with the lathe as it is and parts will certanly not be cheaper and perhaps not even available sometime in future. Pulleys seem to be cast iron, but machined all over, no raw surfaces anywhere. Will have it up and running sometimes next week it seems, first job will be to tackle the oil seal issue.

[steamer]

Thanks dave, bashed a pinky (finger) installing the clutch shaft the second time, need sympathy.. And a pint..

You have my sympathy!    but you might have to buy your own pint....

Couple of years ago, on our "Thanksgiving" holiday, my inlaws came to our home, I was preparing the dinner that day, so I got up early to get that done, and then spent an hour in the shop before they arrived.    I was out there for 15 minutes...when  wrench slipped, and my hand hit the tool post cutting the index finger badly.   I wrapped it up, ate our holday dinner, then went to the hospital and got 6 stitches!     ...Our "babies" will bite us given half the chance....

Dave

[Jo]

...did cost an arm and a leg .

Myford spares are actually cheap: If you compare your lathe's original Myford bed wipers at £8.86 a set and Mr Silky's at £122 you will realise how much of a bargain Myford spares are

What ever you do don't ask about the price of a set of headstock bearings for either Mr Silky or the Gamet bearings for the Colchester 

Jo

[Stuart]

Mega moths 

Stuart

[Bjorn_B]

One nice thing is that all parts get a soak in the washclam (small parts cleaner). And as one tends to oogle Bright and shiny things more I found something I never noticed before: Mystery stud post in the "backbone" of the belt housing (upper right corner). Does anyone here know what this was intended for? Ignore the small holes on the side, they are for my work light...

[Bjorn_B]

Inboard bearing adjuster nut modified and seal installed (52mm dia and 4mm deep step machined for the seal, the bore was taken out to 45,5mm the whole way trough. I allso machined a new spindle bushing (45mm o.d. instead of 44mm to suit the seals). It seems that a GHT headstock dividing thingy upgrade kit is on it's way from Kirk..  (have a versatile dividing head)


Now:

[Jo]

It seems that a GHT headstock dividing thingy upgrade kit is on it's way from Kirk..  (have a versatile dividing head)

And I have a spare set of those bits in the garage and no Myford any more

Jo