Denford ORAC cnc lathe

Denford ORAC cnc lathe

This topic has 8 replies, 6 voices, and was last updated 11 February 2021 at 14:54 by mike T.

Viewing 9 posts - 1 through 9 (of 9 total)

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28 December 2013 at 12:21 #15029
Emgee
Participant
@emgee
Advert

28 December 2013 at 12:21 #138935
Emgee
Participant
@emgee
Hi All

Just posted some videos on Youtube to help new owners of these now old hat machines to program and operate using the original control system, G and M codes. "Denford Orac Tutor 1" shows the control panel and keypads then goes on to enter a program with cyclic feature. The other 2 videos show a dry run and finally the program in use cutting an aluminium bar. Link below takes you to the videos.

**LINK**

Rgds, Marcus

Edited By Emgee on 28/12/2013 12:22:59
29 December 2013 at 16:38 #139027
Michael Gilligan
Participant
@michaelgilligan61133
Marcus,

Very interesting, thanks !!

I don't have the machine, and probably never will; but it's fascinating to see it being worked as originally intended.

MichaelG.
7 January 2014 at 09:50 #139928
Emgee
Participant
@emgee
Hi Michael and All

Another video with facing, turning, inside and outside radius, taper, threading and boring, all on 1 video. Must fit a greater nose rad tool for the taper cuts !!!!!
http://youtu.be/aUbmiMLHLD0

Rgds, Marcus
11 February 2021 at 13:17 #526380
mike T
Participant
@miket56243
Hello Emgee (Triac?)

I have just acquired a Denford Orac for upgrade. I would like to fit a four jaw and a collet chuck.

Did you ever identify the spindle nose/ backplate type or a possible supplier?

Regards

Mike

Edited By mike T on 11/02/2021 13:32:31
11 February 2021 at 13:44 #526385
Roderick Jenkins
Participant
@roderickjenkins93242
When I was employed I bought a couple of Novaturns for work. I never did manage to identify the nose fitting

Rod
11 February 2021 at 14:24 #526397
David Jupp
Participant
@davidjupp51506
Interesting discussion about it on Denford forum, with no absolute conclusion, but a link to drawing of possible matching backplate.

Orac spindle nose
11 February 2021 at 14:39 #526401
Andrew Evans
Participant
@andrewevans67134
I think it may be a case of making a new spindle with standard dimensions or adapt one from a scrap lathe – like a D1-3. Whether it is worth the effort or cost I am not sure – might be easier to just start with an Easiturn lathe in the first place.
11 February 2021 at 14:54 #526404
mike T
Participant
@miket56243
Thank you Andrew,

Sounds like you are saying "If you want to get here, you should'nt start from here"

Several leaned sources suggest the Orac spindle nose is to DIN 55021 (modified?)
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