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Member postings for John C

Here is a list of all the postings John C has made in our forums. Click on a thread name to jump to the thread.

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Thread: MEW 156 tangential toolholder angles
11/05/2011 18:13:16
Chris,
Any chance of a re-demo' at Harrogate on Sat?
John
Thread: Safety lamps for the lathe
07/05/2011 19:05:44
These might suit:
 
 
Very white light, stable gooseneck and no heat.
 
Edited to add: major dia of lamp is about 35mm.  You can use the supplied base or fix the gooseneck to any convenient surface. 
 
John

Edited By John Corden on 07/05/2011 19:08:40

Thread: Suggestions please.
29/03/2011 12:29:23
Hi Gray,
Further to my post above, I rigged up a mock up of the vice and sine bar. The two bars between the vice jaws are machined together to the same length to ensure the jaws are parallel and the rubber band is to keep the sine bar and the slips together. I put a key ring LED under the tool to show any gap. The 'tool' is a bit of steel I ground to 29 deg internal angle on my Worden, set using an ordinary protractor, so as you can see it would need a skim to be spot on.
The first photo shows is without flash and with the matching bars removed to show the keyring LED shining in the gap, the second shows the general idea.
 
Hope this helps,
( And I also hope I have got the right end of the stick!!)
John
 
28/03/2011 22:26:43
Hi Grey,
 
Would a sine bar and slip gauges inside (say) the parallel jaws of a milling vice work? You'd still need to sight the tool edges inside the included angle but you could maybe feel the rock in the tool.You could nip the jaws up onto parallels even if this left the tool nose unsupported.
 
All th ebest,
John
Thread: Case Hardening
12/03/2011 18:46:24
Hi Mike,
If you are still looking, there is hardening compound on ebay here:
 
 
Sorry about the full URL; I'm using Google Chrome and the insert links tool doesn't seem to work.
John
Thread: Selling
16/01/2011 22:06:08
Dominic,
PM sent.
John 
Thread: Newall DRO UK Suppliers?
25/09/2010 19:29:28
That looks a very nice set up Kwil - have you moved the saddle lock to the front of the saddle?
 
Hugh - I have an Allendale DRO fitted to my S7 and am very pleased with it.
 
John 
Thread: Marking out fluid
26/07/2010 21:12:53
Do a google search on:
copper sulphate marking fluid
and choose the second option (the first is this website! )
Sorry, I can't post he link directly. 
1936 no less!
John 
 
Thread: Portable bandsaws - any good?
19/07/2010 18:15:53
Hi,
I have an Axminster small bandsaw which is bigger than the one you are showing.  It is very efficient, cut cleanly and accurately .  However, it is more expensive than the one you are looking at..
 
 
John 
Thread: Lathe Drive Motors, 1ph or 3ph?
01/05/2010 09:40:02
Hi Peter,
 
I have 3 ph motors on an ML7, Super 7 and a Dore-Westbury mill.  The ML7 was a swap from the original 1ph to  a new 3ph motor and inverter from Drives Direct (no connection). I wanted the speed control and have not been disappointed. I had to modify the mounting plate slightly for the replacement motor.  The Super 7 came with a 3 ph motor and I fitted an inverter (from e-bay - getting clever now!)
The mill was 1 ph but I changed the motor to 3 ph from a pillar drill that was the same spec, and fitted an inverter (e-bay again).
The improvement in flexibility is, to me, outstanding.  I have remote speed controls with fwd/off/reverse fitted to all. I was thinking, afterwards, that I could use one inverter with a trailing output lead and just plug in each device seperately as required - but I'd bought the other inverters by then!  I made my own remote controllers for the second two inverters.  Very well worth the change to 3 ph in my opinion. I have seen good comments regarding the after sales support from both inverter suppliers. Drives direct were very helpful to me.
It is worth noting the difference in inverter types - with lower spec ones you lose torque at low speeds, with higher spec ( and therefore price..) you keep the torque and can turn at very low speeds as stated by Myford Paul above.
Hope this helps,
John  
Thread: Recommend oil can for oiler ports (on lathe)
23/04/2010 08:12:50
Hi ,
I changed all the oil points on my Myford to 2 BA threaded grease nipples (available from Myfords or www lathespares (dot) co.uk) and use Hyspin 32 or BD Magna as directed by the Myford lubrication chart through a standard grease gun used upside down. This is guaranteed to force the oil where it needs to go - you can see it at the edges of the bearings. I found that some of the non-pressure oil nipples did not allow any oil through.   Although Nutto 32 is specified, the Hyspin is listed as an equivalent grade. I agree with the above posters - the exact spec is not so important as regular oiling.
John 
Thread: Dilemma - neither lathe nor mill working
21/04/2010 17:12:19
Try: Live Steam Models
 for small quantities of imperial grub screws. Very reasonable and sensible postage too!
John
Thread: RDG Myford Quick Change Tool Post
17/04/2010 13:06:50
Kwil, I support Myford plenty!  The OP stated that he didn't buy their toolholder because it was out of his price range.  He didn't not buy it because he thought the RDG ones were better value - he made the deciion that it was simply too expensive.  Therefore it makes no difference to Myford's finances whether he uses the toolholder he has now or buys a different one.
John
17/04/2010 08:41:20
Hi,
 I have an RDG and also a Myford tool holder. The RDG ones are good value but the quality has been known to vary - if you can get to the shop it would be worth having a look at a few sets.  I returned a set (a while ago, it must be said) with canted adjusting screws and it was replaced immediately with absolutely no quibble. The build quality of the Myford is better with slightly beefier adjusters, better fitting tool clamping screws and slightly less rotation to the cam lock operation - but it should be for an extra £100!  My RDG has done perfectly well and has survived a couple of serious jam ups.  When I get round to it I plan to replace the adjusters on the RDG but that's all.  The holders that I have are interchangeable both ways - that is Myford tool holder on RDG bock and vice -versa -  but that may not be the case for every set.
It would be great to support Myford but if you didn't buy their product anyway they have not lost out.  I would endorse the RDG version as good value for money and you could buy several extra toolholders with the price difference.........
Rgds ,
John (no connection etc)
Thread: Diamond tool holder.
17/02/2010 23:05:16
I'll throw my hat into the ring on this one - I have the diamond tool holder, and I agree with Merick - it's the canine undercarriage as far as I'm concerned.  It may not even be as expensive as you quote - I'm sure my Myford size one wasn't , and very quick delivery from the UK distributors.  It cuts very well and resharpening is easy.  The only caution I have is that  - for me, cutting mild steel - if the point isn't dead on centre height and you are facing, the 'pip' on the turned material can tear a flake off the point of the tool.  I'm very aware that this may be my incorrect use, and I'm not in any way talking down the tool - just somethinng to be aware of.  I've modified the grinding rest on a 'Tormek' wetstone grinder for use with the grinding jig, which I find gives very good results.  You can buy some 1/4 tool steel and make a number of cutters to ensure you always have a sharp one to hand. 
 
And just for Circlip and the others - I wish I'd got the Diamond before shelling out for various carbide insert tools - which probably cost more if I add them up!
 
John ( no connection to Diamond Tools)
Thread: Mystery Attachment
31/01/2010 10:40:47
Mystery solved in record time!  Thanks all.
John
Thread: Mystery Attachment
31/01/2010 09:56:03
Thanks David - please send the photo to
John
Thread: Mystery Attachment
31/01/2010 09:50:13
Thanks Stick- I looked at the Hemingway keyway slotter on their website but the device shown looks markedly different to mine. It is referred to as the 'latest' design which infers an earlier version exists.  If yours is the same as mine, would it be possible to have sight of the plans if you still have them?
Thanks,
John 
30/01/2010 22:51:09
Hello  All,
I have recently acquired what I think is a part completed shaper attachment for a Myford Super 7 lathe.  I've put photos in the album 'Mystery Attachment - possibly a shaper' in the photos section. Can anyone help out with identification - even if just to prove me wrong! The first photo shows the pieces assembled but this is unlikely to be correct - it was just to show what would fit where. I've looked through the various books on making additions for the Myfords but have seen nothing like it.  The nearest was a shaper kit supplied by Hemingway, but this is quite different.
Many thanks in advance,
John
Thread: Granville Lathe Pains
30/01/2010 07:40:58
I'm with Keith on this one.  If the drive belt has 'set' the tension will change as it moves, causing the motor to move against the belt tensioner in response. This may be your problem.
John
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