MadModder
Gallery, Projects and General => How to's => Topic started by: Gerhard Olivier on August 26, 2009, 05:40:56 PM
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Thanks to Bogs I now know whan a backstop does and how it works AND I WANT ONE
I dont have any morse taper blanks and my topslide travel is to short to make one without a lot of luck involved.
The other way mentioned looked like I would be able to manage
So I need a expanding collet that fits the wrong end of the headstock spindle.
25mm MS + lathe +(http://i608.photobucket.com/albums/tt161/geroli/DS4.jpg)
+Slitting saw (http://i608.photobucket.com/albums/tt161/geroli/DS5.jpg)
=(http://i608.photobucket.com/albums/tt161/geroli/DS6.jpg)
This has a 12.5mm bore right through and a low angle taper at one end
Then the Tapered locking bolt needs a Outer thread 12mm *1mm pitch and a inner 8m thread
(http://i608.photobucket.com/albums/tt161/geroli/DS7.jpg)
And ready for parting ( taking it out to the garagde and cutting it with the hacksaw) Parting noise wakes kids
(http://i608.photobucket.com/albums/tt161/geroli/DS8.jpg)
The setup on a piece of 8m studding just needs a 12mm *1mm closing nut and some accesories - like delrin spacer to keep it from rattling and maybe a flat end for the material to rest on.
(http://i608.photobucket.com/albums/tt161/geroli/DS9.jpg)
Enough for tonight
Hopefull more tomorrow
Gerhard
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Nice bit of machining Gearhard :nrocks: is that a c4 indexer your using ?.
Looking forward to next installment :thumbup:
Have fun
Stew
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Nice one Gerhard,
It should work just fine.
Bogs
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HI all
Thanks Bogs , Stew and Im not sure what it is called its a spindex takes 5c collets and Im working it with a 5c to er35 adapter.I got it cheap at the mod eng show.
Just need a little knurling and some small bits then I can start with the saddle stop- maybe do a multy stop rotating index.
Gerhard
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Well done Gerhard...... :clap: :clap:
David D
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Final parts done
Thanks for comments
Made the Knurled locking nut
(http://i608.photobucket.com/albums/tt161/geroli/DSC_0002-1.jpg)
And then assembled the lot -wont tighten as it just slips. :(
Need something to stop rotation. :smart:
So I tapped a m6 tread in the outer sleeve and a 2mm groove in the inner.Then I cut a m6 allen bolt down to lenght and lathed a 2mm end.
(http://i608.photobucket.com/albums/tt161/geroli/DSC_0004-1.jpg)
This all assmbled well and stopped the rotation.
(http://i608.photobucket.com/albums/tt161/geroli/DSC_0005-1.jpg)
The whole lot together
(http://i608.photobucket.com/albums/tt161/geroli/DSC_0007.jpg)
And relative to the headstock lenght the delrin spacer is just to keep things concentric but i dont think it is essential.
(http://i608.photobucket.com/albums/tt161/geroli/DSC_0003-1.jpg)
And fitted to the lathe -
(http://i608.photobucket.com/albums/tt161/geroli/DSC_0006-1.jpg)
Next I need a Saddle stop.
Gerhard
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That really is a nice job you have done there Geroli.
I will have to get one made for mine now, as I can definitely see the advantage of one of these for longer stock turning, just as John Hill suggested.
Bogs
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Good job Gerhard :thumbup: :clap:
:beer: Arnold