[modeleng] Re: Adept/Super Adept lathes
- From: "shep" <shep.28@xxxxxxxxxxxx>
- To: <modeleng@xxxxxxxxxxxxx>
- Date: Sun, 1 Jan 2006 09:58:07 -0000
Hi George
As Alan Stepney says, this taper will be unique. I am very slowly, making
a small lathe from scratch. I decided on 0MT for the mandrel and the
tailstock.
I turned the taper in the mandrel, using the topslide, and then reamed it
with a 0MT reamer (obtainable from Tracy Tools).
I would suggest similar approach with your Adept lathe. Having tightened
the headstock bearings sufficiently to avoid any play, carefully bore the
headstock, using the topslide set to the correct 0MT taper. Finally,
support the taper reamer with the tailstock, and turning the lathe by hand,
ream out the last few thous. This should give you an accurate MT taper.
You could do the same thing with the tailstock spindle, but it would be
better to chuck this in a four-jaw chuck on a bigger lathe, using a fixed
steady to maintain concentricity.
With regard to the 1/8 Whitworth grubscrews, I would suggest tapping the
holes to a slightly larger BA or metric size, and using Allen grub screws,
which are much more satisfactory. Have these long enough to hold
locknuts, thus securing the setting.
Good luck with these amazing little machines!
Happy New Year.
Cheers!
Hubert.
----- Original Message -----
From: "George Clements" <George@xxxxxxxxxxxxxxxxxxxxxxxxx>
To: <modeleng@xxxxxxxxxxxxx>
Sent: Saturday, December 31, 2005 10:15 PM
Subject: [modeleng] Adept/Super Adept lathes
>I have got hooked on Adept/Super Adept lathes and have managed a purchase
>over the net. There seem to be a number of variations or developments, and
>I should be grateful for any information people may have over and above
>that which is on the lathes.co.uk website. For starters, does anyone know
>the exact taper in the headstock? As far as I can measure, it seems to be
>about 1 in 25, and looks to be very close to a Jacobs No 0. Most of the
>lathes I have seen illustrated appear to have the same taper in the
>tailstock, but I have a different tailstock with a larger taper and a
>different advancing mechanism. Is this a manufacturer's development, or a
>very clever adaptation? It also seems as though there was provision for a
>power feed: was this again a development, or an optional extra?
> Does anyone know a source of supply of slotted 1/8 inch whitworth grub
> screws, as used for the gib strip adjustment? The originals are two
> different lengths and have pointed ends, but longer could be adjusted.
>
> It may be that articles were printed in the Model Engineer, or similar,
> about the lathes, modifications, new developments etc., but, unfortunately
> I do not have access to indexes to check. Could anyone help?
>
> George Clements
> Tel. 01670 850879
> email george@xxxxxxxxxxxxxxxxxxx,co.uk
> MODEL ENGINEERING DISCUSSION LIST.
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