MadModder

The Shop => Tools => Topic started by: Stilldrillin on May 21, 2009, 01:08:58 PM

Title: Small M2 Running Centre.
Post by: Stilldrillin on May 21, 2009, 01:08:58 PM

After admiring Stew`s handiwork, today I made a small running centre for my 7x20 Mini Lathe.....  :wave:

Whatever I`ve missed here, please refer to Stew`s posting........  :thumbup:


The centre & MT2 blank to suit my smaller tailstock.

(http://i110.photobucket.com/albums/n95/Dayjo/p5200005.jpg)



Blank mounted in MT3 sleeve in headstock. Remembering to insert a piece of 10mm screw into the blank`s thread, for stripdown.
Roughing began....... At .010" per pass.....  ::)

(http://i110.photobucket.com/albums/n95/Dayjo/p5210002.jpg)



A little hard at the taper end.

(http://i110.photobucket.com/albums/n95/Dayjo/p5210013.jpg)



Found a nice new "10mm" reamer.

(http://i110.photobucket.com/albums/n95/Dayjo/p5210016.jpg)



A little swarfe clearing problem. (No problem).

(http://i110.photobucket.com/albums/n95/Dayjo/p5210018.jpg)



This is not a good time to realise you do not own a drift.......  :bang:

(http://i110.photobucket.com/albums/n95/Dayjo/p5210020.jpg)



I then realised the reamer is a few microns undersize, so I polished the centre shank to a lovely "pop" fit.

This caused an airlock with the loctite...... Had to file a flat to allow the air out!

Just needs the taper shortening for the little tailstock, after the loctite has cured.

(http://i110.photobucket.com/albums/n95/Dayjo/p5210023.jpg)



The centre is 23mm o/d, the tailstock ram is 22mm........ Now that`s close enough for me!  :thumbup:

(http://i110.photobucket.com/albums/n95/Dayjo/p5210024.jpg)



Thanks Stew! Yer a gem......  :headbang:

David D

Title: Re: Small M2 Running Centre.
Post by: sbwhart on May 21, 2009, 01:32:56 PM

Nicely done David

It makes a lovely neat centre, I see you ran up against some tuff stuff as well when turning blank down, its not to bad but it does make the old machine groan.

Cheers

Stew

Title: Re: Small M2 Running Centre.
Post by: CrewCab on May 21, 2009, 06:19:05 PM

You guys are making everything look soooooooooooooo easy  :headbang:   ............. plus adding greatly to my "To Do" List 

Ta chaps :beer:

CC

Title: Re: Small M2 Running Centre.
Post by: John Stevenson on May 22, 2009, 04:13:39 AM

Don't forget to buy some of these.

(http://www.arceurotrade.co.uk/imagecache/32893311-eb3f-473f-913e-e15d83794bdf_250x115v1.jpg)


Not worth messing about for a quid.

http://www.arceurotrade.co.uk/Catalogue/New-Products/Chucks-Backplates

JS.

Title: Re: Small M2 Running Centre.
Post by: bogstandard on May 22, 2009, 04:54:16 AM

Those screw in tangs are great John.

I bought a handful of them when I modded my tailstock. They are worth it at double the price.



John

Title: Re: Small M2 Running Centre.
Post by: Stilldrillin on May 22, 2009, 07:41:50 AM

Thanks John, one of those will tidy the job nicely.......  :thumbup: