Search found 41 matches

by RNR107
Wed 26 Feb , 2014 14:57 pm
Forum: Triac
Topic: Drawing for the R8 spindle on the Green TRIAC
Replies: 0
Views: 1238

Drawing for the R8 spindle on the Green TRIAC

Hi all,
Anybody could provide a drawing with dimensions for the R8 spindle fitted to the older green model of the TRIAC?

Ta!
RNR
by RNR107
Thu 23 Jan , 2014 12:46 pm
Forum: Denford Classifieds
Topic: Deleted
Replies: 4
Views: 1727

Re: Denford Easiturn 3

Hi,
Where are you based?

Laurent
by RNR107
Mon 09 Dec , 2013 19:46 pm
Forum: Orac
Topic: Help wanted to add digital axis display zeroing buttons.
Replies: 4
Views: 2273

Re: Help wanted to add digital axis display zeroing buttons.

Hi,
You could do that in your Gcode... G92 x0 z0 ???

If the Orac supports G92 code that is...

RNR
by RNR107
Tue 03 Sep , 2013 10:03 am
Forum: Orac
Topic: ORAC backlash
Replies: 3
Views: 2271

Re: ORAC backlash

Hi, You shouldn't have any back lash on a ballscrew (or at least nothing noticeable) Best thing to do is to take this ballscrew with the nut of the machine and see if there is any play between the nut and the screw. If there is, it needs replacing (Or left alone and compensate by the sofware Mach3 l...
by RNR107
Tue 16 Jul , 2013 8:55 am
Forum: Orac
Topic: Orac spindle nose taper
Replies: 31
Views: 12865

Re: Orac spindle nose taper

I can't find any drawings of the headstock. Is it pretty obvious how to remove it? Yes... There are 4 M8 nuts tightening the casting against captive screws in the bed. 2x of them are at the back of the head (You can see them just by looking behind it in a recess at the bottom of the casting. and 2x...
by RNR107
Mon 15 Jul , 2013 16:31 pm
Forum: Orac
Topic: Orac spindle nose taper
Replies: 31
Views: 12865

Re: Orac spindle nose taper

Well, in theory it is possible... But how do you plan on setting the angle of 7.125 deg ??? I don't know what kind of lathe you have but, I don't have such precision on mine. Also, You could bring the headstock of the ORAC with you. It is small enough and fairly easy to remove. Just 4x M8 nuts / bol...
by RNR107
Mon 15 Jul , 2013 15:21 pm
Forum: Orac
Topic: Orac spindle nose taper
Replies: 31
Views: 12865

Re: Orac spindle nose taper

Yes I've just realised that myself! But you could still make the morse taper hollow. Like this (attached) Obviously it's a compromise between wall thickness and smaller clearance diameter. Exactly... :) The ideal would be to know what the outer taper is - seems crazy that no one knows! Well, what's...
by RNR107
Mon 15 Jul , 2013 13:36 pm
Forum: Orac
Topic: Orac spindle nose taper
Replies: 31
Views: 12865

Re: Orac spindle nose taper

I've been wondering about fitting (or making) a collet chuck for my Orac. It looks like no-one knows definitively what the taper is on the spindle nose. I'm wondering about simply using the morse 3 taper on the inside of the spindle to provide concentric registration, and using the m8 bolt holes to...
by RNR107
Mon 24 Jun , 2013 21:14 pm
Forum: Orac
Topic: Orac spindle nose taper
Replies: 31
Views: 12865

Re: Orac spindle nose taper

Hi Emgee, For concentricity... no problem, I use the same fitting on my manual lathe (Boxford) and concentricity is perfect, DTI does not move at all. For reversing the spindle, why would you do that? I never use the spindle in reverse ? (In fact since the Mach3 conversion, I removed this facility) ...
by RNR107
Fri 21 Jun , 2013 8:59 am
Forum: Orac
Topic: Orac upgrade
Replies: 4
Views: 2648

Re: Orac upgrade

Looks like you are on the wrong side of the bridge mate! :roll: I am in UK...
I can help as much as I can...
by RNR107
Thu 20 Jun , 2013 10:01 am
Forum: Denford Classifieds
Topic: For Sale Microrouter Pro NS
Replies: 3
Views: 2348

Re: For Sale Microrouter Pro NS

Hi,
Could you give an indication of how much you want for it ?

Laurent
by RNR107
Thu 20 Jun , 2013 9:58 am
Forum: Denford Classifieds
Topic: pulleys needed for novaturn please
Replies: 1
Views: 1347

Re: pulleys needed for novaturn please

Hi audio.fi, These are standard time pulley and belt. You can just get them of eBay: http://www.ebay.co.uk/sch/Business-Office-Industrial-/12576/i.html?_from=R40&_nkw=XL+pulley&LH_PrefLoc=1 But, If I were you I would change all of them for T5 type. A lot more common than XL's. http://www.ebay.co.uk/...
by RNR107
Wed 19 Jun , 2013 10:26 am
Forum: Orac
Topic: Orac spindle nose taper
Replies: 31
Views: 12865

Re: Orac spindle nose taper

Hi all,
I found the solution... No more custom made back plate.... No more hammering the spindle ! :o

I got the spindle nose re-machine to the old Boxford threaded standard 1.5" x 8 TPI BSF. (see picture attached)
Back plate for these can be bought on eBay for about £17...

Laurent
by RNR107
Wed 19 Jun , 2013 10:19 am
Forum: Orac
Topic: Orac upgrade
Replies: 4
Views: 2648

Re: Orac upgrade

Hi cam1000,
Where are you based?
I can upgrade it for you... I am doing one myself right now.

Laurent
by RNR107
Tue 28 May , 2013 22:11 pm
Forum: Novamill
Topic: Novamill equivalent stepper motors
Replies: 1
Views: 1940

Re: Novamill equivalent stepper motors

Hi bradders, Steppers on the Nova are really tiny... So any Nema23 motors would do for X For Y it is a bit more tricky as you need to watch the lengh of the motor as the physical size is limitted inside the column. For Z it is a Nema34 These should work: For X and Y: http://www.zappautomation.co.uk/...
by RNR107
Tue 28 May , 2013 21:48 pm
Forum: Novamill
Topic: new nova mill
Replies: 4
Views: 2756

Re: new nova mill

Hi Alan,
I could converted to Mach3 for you for a small fee... :-) if you bring it to me...
Where are you based?

I've done a few Nova, Micromill and TRIACs so far.

Laurent
by RNR107
Wed 07 Nov , 2012 22:50 pm
Forum: Orac
Topic: Independent 4 jaw chuck ?
Replies: 7
Views: 2930

Re: Independent 4 jaw chuck ?

Hi, It took me a bit of time and effort to get the chuck off, but it may have been there a while... I'll try again, it maybe easier now. L I tryed again... It won't definitively not fall off by itself after removing the 3 nuts! It needs a few taps from the back... Just notice something on your pictu...
by RNR107
Wed 07 Nov , 2012 11:22 am
Forum: Orac
Topic: Independent 4 jaw chuck ?
Replies: 7
Views: 2930

Re: Independent 4 jaw chuck ?

Lots of ideas indeed ! :-) Thought of something last night... I don't really like the way the chuck attach to the spindle... Every time I want to change chuck I need to go throu the process of removing the 3 nuts, then tap the chuck from the back. Not really a good system is it? So.............What ...
by RNR107
Tue 06 Nov , 2012 13:17 pm
Forum: Orac
Topic: Independent 4 jaw chuck ?
Replies: 7
Views: 2930

Re: Independent 4 jaw chuck ?

Hi Emgee, Thank you for your help! :-) I would love making a new back plate to mount various chuck. The problem is, on the ORAC the spindle nose has a kind of male taper used to locate the back plate. therefore the backplate has to have a tappered hole in the center and....I don't know the angle! :-...
by RNR107
Fri 02 Nov , 2012 14:49 pm
Forum: Orac
Topic: Independent 4 jaw chuck ?
Replies: 7
Views: 2930

Independent 4 jaw chuck ?

Hi all,
I bought recently a Denford ORAC, and (as most of them I guess...) it only came with a self centering 3 jaw chuch.
So, I am now looking for an independent 4 jaw chuck. Any body could tell me where I could buy a suitable one ?

An ER32 collet chuck would usefull as well... :D

Ta,
Laurent