Harrison M250

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Electricky Dicky - 02 Nov 2007 08:46 GMT

I am considering creating a "Hobby" workshop and have the offer of
purchasing a Harrison M250.
Would the group feel that this is too big for model type work? First
project would probably be a small IC engine typically of the Jan
Ridders design.
I spent some years in sub contract machining in the dim and distant
past so have a reasonable degree of experience.
The Harrison is of interest because
1 its local
2 its full metric and imperial
3 its £500
4 Comes with 3 jaw, 4 jaw, faceplate, fixed steady, quick change
toolpost and two holders, additional change gears.

Needs a good clean up and motor changed to single phase.

Any comments? Negative or positive. Any particular points on the m/c
that need checking out?

--

Richard

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dave sanderson - 02 Nov 2007 09:42 GMT

> I am considering creating a "Hobby" workshop and have the offer of
> purchasing a Harrison M250.
[quoted text clipped - 18 lines]
>
> Richard

If its not a really tired old hack then Id certainly give it a go. Its
easier to do small on a large machine that large on a small machine...
sounds equiped enough that you could be making things quickly.
Not sure how easy a remotor a modern Harrison, but my L5 was dead
easy. Id consider an inverter drive if you can, I put a newton tesla
on mine and it makes the speed range much more flexible, and has fwd/
rev as well.

Dave

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Trevor Jones - 02 Nov 2007 13:46 GMT

> I am considering creating a "Hobby" workshop and have the offer of
> purchasing a Harrison M250.
[quoted text clipped - 18 lines]
>
> Richard

Grab it!

Even if beat to heck, it'll outcut a Myford any day.

Small work on a big lathe is way easier than big work on a small lathe.

Like as not, once you have it, you will find yourself with projects
too large to fit comfortably. That is the nature of having a lathe! :-)

Cheers
Trevor Jones

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David Hodgson - 26 Sep 2010 21:07 GMT

Hi,
I converted my M250 by fitting a "Same-Size" single phase motor. It was easy
and cheap although still a brand new GEC that I got off eBay. Attaching the
motor was dead easy but once you have done it you have to completely re-wire
the switch panel and unless you are very good with electrical things you
will find the reversing switch a nightmare, also I bought a new starter to
cope with the heavier current flow. I ended up having to make a new steel
switch panel and a new aluminium face panel but the motor part was as is say
dead easy

url:http://myreader.co.uk/msg/134811825.aspx

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Mark Rand - 26 Sep 2010 21:42 GMT

>Hi,
>I converted my M250 by fitting a "Same-Size" single phase motor.

Try to stay awake there in the back of the class :-|

Mark Rand
RTFM

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Model Forum / General / Models / September 2010

Harrison M250