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Member postings for Robin King

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

Thread: Smart and Brown Sabel
13/06/2020 12:06:09

Afterthought on felts, vintage vehicle part suppliers stock suitable felt sheet, you'll have to search for them tho'.

Oddly my Boxford has no felt wicks anywhere and I've not seen mention of them ever being fitted on them either.

13/06/2020 12:03:18

That's quite likely but the problem is finding them. You could try John Ward at latheparts.co.uk but I'm not sure if he's still trading; last time I spoke to him he was trying to retire. Worth a try though as he might be able to make you one.

Another thought, bit late possibly, but there is a useful manual in existence for the rebuild of the South Bend lathes, 'A Guide to Renovating the South Bend Lathe 9" Model A, B, C Plus 10K" which is fully illustrated and details the strip down/rebuild of those machines, nearly all of which applies to the clones as well. IIRC I bought my copy through Amazon, and it was well worth the money for my Boxford rebuild.

Thread: Siemens does not like me...!
11/05/2020 09:38:31

Ian,

thank you - that's very helpful. As and when I can download it I'll have a play with it and see what can be done/set up.

R

10/05/2020 21:18:34

Thank you both. R

10/05/2020 18:26:47

Ah so. In my ignorance - what's the difference from UK imperial dims?

10/05/2020 14:22:10

Afterthought - does anyone know if that package can use UK imperial dimensions?

10/05/2020 14:18:34

FWIW I tried downloading the 2D version a couple of days ago off the original quoted link but it was indicating a download time of more than 2 hours. Even allowing for our rural broadband that's a bit too long for me so I abandoned it. Nonetheless if the Youtube videos are to be believed it would be worth trying at the very least so I'll have to give it another go soon from IanT's link, though that wasn't working this a.m.

Thread: Rabone machine level
29/04/2020 09:50:27
Posted by John Haine on 29/04/2020 09:18:55:
Posted by John Haine on 28/04/2020 22:30:30:

I think there was an article on baking precision bubbles in MEW in the early days...

Well, it might be possible to bake one, but I think I meant "make"...

That's a shame, I was looking forward to a recipe for 'bubble cake' ......

Thread: Arboga em825
28/03/2020 13:49:55

There are several possible causes for the play you describe.

Looking at the exploded parts diagram in the handbook the rack is a separate item fixed to the back of the main quill with screws at top and bottom. I suspect that if the fixings worked loose it would allow some slack there.

I can't see if there is any provision for mesh adjustment between the rack and feed spur, though you could try shimming between the mounting face of the rack and the quill body to achieve that.

The other more likely possibility is wear in the quill top radial ball bearing and bottom taper roller bearing. There is a nut and washer on top of the quill spindle above the top bearing which according to the handbook is provided to be adjusted to take up axial play. It goes on to say that 'This nut can be reached when the quill is removed from the machine.' Looks like the first thing to check.

28/03/2020 11:12:50

The Arboga handbook says 'when milling the quill should be firmly locked' so you're doing the right thing. It also mentions on cutter sizes/feeds guidance ' we have good results milling in steel with an end mill of 14mm (9/16" diameter to a depth of 4mm (5/32". I would assume that those figures applied to a new machine not one with some wear and tear on it. If you are attempting to doing anything more than that you might pull the quill down against the lock.

An ER32 collet is not the most secure for grip on an end mill shank, and they can pull down with a heavy cut. On my EM825 I use a Clarkson collet chuck that came with it plus threaded shank cutters and have never had any great problem, also I try not to be greedy with cut depth/feed rate.

Btw - you might find a copy of the handbook on the net, but otherwise from Tony Griffiths at lathes.co.uk

Thread: Machine feet/mounts?
27/03/2020 14:38:23

Same here, hence my question earlier - does seem like overkill.

The one thing that has struck me with both my mill and lathe being on Polymax resilient mounts is that the machines are now noticeably quieter than when on solid mounts direct to concrete.

26/03/2020 16:08:51

Two suppliers you could try:

www.wixroyd.com - search for 'machine mounts';

www.polymax.co.uk - FMG heavy duty levelling feet.

I bought four for my Arboga mill from the latter and very good they are, but not cheap.

The only snag is that for the load you are looking at the stud sizes are M16. If you can work with about 300kg then M12 studs are available from Wixroyd, and 350kg from Polymax.

Thread: Adjusting an M&W level
20/02/2020 10:08:23

Obviously re-check and repeat the process until the error is corrected.

20/02/2020 10:07:20

Dave, many thanks, that's just the info I was after and makes sense on looking at it again so I'll work on that basis.

Clive, thanks. The method I was shown years ago was to use a surface plate but to rotate the level until it centres correctly, which it must do at 90 degrees to the slope (if any), place an angle plate alongside it held in place to use as a lateral reference, then turn the level 180 degrees and place alongside the angle plate to check if still centred. Adjust the level as necessary; no need to adjust the surface plate.

19/02/2020 17:44:06

Graham, thanks - that's a great help; pity it doesn't give any clues as to how or if that's what you use to adjust the main vial. I'm reluctant to experiment!

Robin

19/02/2020 17:02:13

Howard thanks. I'm fairly certain that the two screws at either end of the main vial are the ones needed for adjustment.

What appear to be larger slotted screw heads on top at one end and on the side at the other are repeated underneath and on the back, and as far as I can see are just end caps to the vertical vial and short cross vial, and not related to adjustment, hence my original query. I don't think I should fiddle with those.

R

19/02/2020 16:01:59

Thank you both.

Martin, unfortunately not, as that level is an entirely different form of construction to the British made ELS/ELM types.

Howard, yes indeed, that's exactly the method that I use but my problem with the ELS is in identifying which of the screws do what on this type.

19/02/2020 14:52:03

I need to adjust a Moore and Wright ELS level which is noticeably out of calibration, and while familiar with the process for checking and adjusting I can't find any specific detailed instructions for the adjustment of this particular level. Like the ELM it appears to be provided with pairs of screws at both ends of the main vial tube, running vertically down into the base casting but it's not clear as to whether these are simply fixings or for adjustment. Before I dive in and do the wrong thing I thought for once I'd ask first

Has anyone any information on these levels, please?

Thread: Is this an improvement?
19/02/2020 14:41:17

Not being a clocksmith myself, and therefore possibly ignorant, but what's the difference between this and the relationship between a roller chain and sprocket?

Thread: My Hercus 9 Restoration.
19/02/2020 09:27:28

Mark, I've only just caught up with this thread but looks like you're making good progress. +1 for Hopper's remarks on the headstock bearings.

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