[modeleng] Fw: Re: Adept/Super Adept lathes
- From: "shep" <shep.28@xxxxxxxxxxxx>
- To: "Modeleng" <modeleng@xxxxxxxxxxxxx>
- Date: Sun, 1 Jan 2006 23:03:48 -0000
Hi George
Your idea of using headed screws (perhaps countersunk?) is most original
and
I cannot see why it would not work. There is no easy method of accurately
cutting slots in grubscrews, giving a perfect result. If there are a lot
of them, setting up a milling jig, holding the screws in a collet and using
a slitting saw, is a fail-safe method, but too much trouble for four
screws!
Watchmakers' suppliers make a handle-less file with two cutting edges,
specially for this purpose, but they cost a lot! A Dremel cut-off 'wheel'
works well, but needs a hand steadier than mine. Try your idea of turning
off the heads, and let me know!
What a pity the mandrel is too small for 0MT. Try measuring the
approximate angle of the existing tapered bore, and turn some scrap to that
angle. Use engineers' 'Blue' and alter the angle until you have a perfect
fit showing on the scrap piece. You can then turn a centre to the angle,
fit it in the mandrel, and turn the centre angle, using the topslide. It
does not matter that the centre will be soft, as it does not rotate in the
piece to be turned between centres.
Good luck with the Adept - as Alan Stepney mentioned, locomotives were made
on this little lathe between the wars!
Cheers! Hubert
>
> ----- Original Message -----
> From: <george@xxxxxxxxxxxxxxxxxxxxxxxxx>
> To: <modeleng@xxxxxxxxxxxxx>
> Sent: Sunday, January 01, 2006 9:54 PM
> Subject: [modeleng] Re: Adept/Super Adept lathes
>
>
>> Hello Hubert,
>> Many thanks for the suggestions, but the headstock spindle is only a very
>> small diameter - the standard taper is only just under 1/4" diameter, so
>> even 0 Morse won't go. Also, the gib strip adjustment screw holes are
>> very close to the edge of the castings, so I am reluctant to try tapping
>> oversize.
>> I have managed to get a few 1/4" whit socket grubscrews from a local
>> stockist and will use them if necessary, but I have been trying to
>> maintain originality. I also have a few brass machine screws of the right
>> thread which may be O.K. if the ends do not spread and make later removal
>> difficult. There would be no problem in producing a 1/4 whit thread on
>> some silver steel rod, but I don't think that I could make a decent fist
>> of cutting the slot by hand. One approach may be to try to get some
>> headed screws, deepen the slot using the existing as a guide and
>> thenremove the heads, what do you think?
>> I have bought a number of things from Tracy Tools (including an 0 Morse
>> reamer as it happens): they are a great source aren't they.
>> Thanks again for your kind interest, and good luck with your own lathe
>> project.
>>
>> George
>>
>>
>>
>>
>
MODEL ENGINEERING DISCUSSION LIST.
To UNSUBSCRIBE from this list, send a blank email to,
modeleng-request@xxxxxxxxxxxxx with the word "unsubscribe" in the subject line.
Other related posts:
