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Member postings for Patrick Carnegy 1

Here is a list of all the postings Patrick Carnegy 1 has made in our forums. Click on a thread name to jump to the thread.

Thread: Beginners' steam plant
23/09/2015 18:50:53

I have two 15-yr-old 'apprentices', now competent in basic lathe, mill and bench work. They're looking for a kit or kits to make a simple steam-engine (probably oscillating) plus boiler plant. Something they can make in a year of evening classes + home workshop time. All suggestions very welcome!

Many thanks.

Thread: Fobco Star 1/2" bench drill
19/03/2014 20:51:25

Thank you very much, Martin. That colour looks good to me and I'll pursue it with Craftmaster.

I've just made the happy discovery that Craftmaster are in Over, Cambs, no more than about 5 miles north of my home in Elsworth. So I'll drive over and see them!

Present paint colour is a horrible bilious green, quite unworthy of this fine machine and crudely applied.

best wishes, Patrick

19/03/2014 14:04:51

Thanks very much, Martin. Can you please help further with the name or number of the cream paint which I should order from Craftmaster?

Al best, Patrick

18/03/2014 22:40:15

Could anyone please tell me the name, or code for, the correct cream paint colour used on most Fobcos?

Any ideas about where to obtain it?

Thread: lacquer for polished metal
27/09/2010 22:32:50
That's hugely interesting, Bogs, thanks very much.
 
I note from your helpful link that Letraset 101 is Gloss. Have you also tried 102 (satin) and 103 (matt)?  Some of my fiddly Stuart beam engine parts may need the use of a brush rather than a spray can. How could this please be done?
 
All best, Patrick 
27/09/2010 20:26:50
Advice, please, as to the best products and techniques for the prevention of tarnish on fine-finish brass, gunmetal and steel model parts.
I'm finding Rustin's Metal Lacquer and Humbrol Satincote cloudy and unsatisfactory in use.
Patrick Carnegy 
Thread: collet thread
22/08/2009 01:38:56
Delighted, Colin, all has worked out well for you. Glad you're enjoying to screw-cut. The one sure thing is that older collet threads (3c, etc) are a problematic area in which nothing can be taken for granted. A comprehensive review article in ME or MEW would be very valuable. Best wishes, Patrick
04/08/2009 13:10:30
Hello Colin, In my experience 3C collets are a bit of a mystery. With my Boxford AUD 5" lathe (1978 vintage) came a drawbar and eight 3C imperial collets. I had trouble in getting them all to hold properly, eventually discovering that four of the collets had a 26tpi thread c. 0.626 diam, while the other four had a 26tpi thread c. 0.644" diam. No wonder some were sloppy in the drawbar and others tight! I got into serious trouble when one of the collets jammed through over-tightening, the pin in the collet chuck shearing. Took a lot of headache to discover how to release the spinning collet – but that’s another story! I have therefore made two new drawbars, using a 0.625 x 26 tap to cut the thread in the smaller one, and screwcutting the 0.650 x 26 one (not easy, but satisfying to do!). Boxford describe the correct thread as 0.647/650 x 26 Rotagrip supplies new ‘3C’ collets threaded 0.640" x 26 In all cases we’re talking about the 26tpi Brass Gas Thread. Not sure you should try to reduce the diameter of your collet threads. You could try using a 26tpi chaser (as available from, say, Tracy Tools). Very interested to hear how you get on. Best wishes, Patrick Carnegy
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