Member postings for Nicholas Farr

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

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Thread: Minilor TR1 - anything!
11/12/2010 18:36:48
Hi Stuart, I have a long bed version of the round bed lathe. All aspects of it sugest that it is a Drummond even down to the pattern of the treadle, but there is no makers name on it and no evidence that there ever has been. I don't know wether Drummond supplied casting ect. to other makers or not.
 
Regards Nick.
Thread: You are going to the Model Engineer Exhibition aren't you?
11/12/2010 17:54:14
Hi Andrew, yes I have to agree at Warwickshire and Alexandrea Place, in the last few years I've seen at least two other secondhand tool stands with some interesting items for sale. When finding out the price, I though to myself thats why they still have them and they had better keep them a bit longer. It was not because it was first thing ether, in fact they still had them at closing time. Don't you just hate it when they have all the cutters except the particular one that you need.
 
Regards Nick.
Thread: Horses for Courses
11/12/2010 13:21:05
Hi Wolfie, and any other beginners. I think Terry's concise and general explanations are very well put. I've been in engineering all my life and I am still learning about different metals and which are best for what, in general terms I am aware of most of it. A lot of choices for materials are for the "designers" to decide upon, and for the "doers" to use, so don't think you are being ripped off or being taking for a ride having to use many different or higher priced metals in one project. Untill you have gained a little knowledge and experence, you have to trust the plans that you have somewhat. If you want to design, then yes you will have to read widely and be prepared to experiment with many failures ensuing. But if something does not work the first time or two don't give up just persivere, you are bound to learn as you go along. This is the way industry has built up over very many years. 
 
Regards Nick.

Edited By Nicholas Farr on 11/12/2010 13:24:32

Thread: You are going to the Model Engineer Exhibition aren't you?
11/12/2010 12:22:18
Hi Andrew, I don't know about Steve, but I myself think they are a bit pricey. Although I have bought some less popular items from them in the past at a reasonable cost, I ddn't see anthing this time to make me willing to part with my cash. This is only my opinion of value of course.
 
Regards Nick.
Thread: Drilling chuck questions
10/12/2010 23:26:16
Hi, personally I prefer keyed chucks and agree with Chris that they grip better. Of course they should always be tightened correctly using all three holes (they don't put three in so you can use one that just happens to be in the right place) and gradually tighten each one in a rotational sequence going round twice, not cramming each one up as hard as you can and hpoe for the best. This can be considered a bit time consumming, but if done correctly with a good quality, unabused chuck, you will not have drills spinning or walking out. Your chuck will also serve you well for very many years if treated right.
 
Regards Nick.
Thread: Horses for Courses
10/12/2010 22:53:37
Hi, the WPS no.30 Workshop Materials is another useful source of information also.
 
Terry I think you are right the show seemed a little less busy this year, it was practically like a goast town by half past four. One or two les regular traders me thinks also.
 
Regards Nick.
Thread: Lignum vitae under the saddle?
09/12/2010 11:23:47
Hi. Lignum Vitae is one of of two tropical American trees. Guaiacum officinal or G. sancturn which have evergreen leaves and are heavy,durable,resinous woods. Machine bearings made from either of these woods. The name is derived from New Latin, from Late Latin; "tree or wood of life". There are sevral similar or related trees.
 
Regards Nick.
Thread: You are going to the Model Engineer Exhibition aren't you?
07/12/2010 17:21:49
Hi David, I plan being there on Friday.
 
Regards Nick.
 
P.S. did you get the scans I emailed you.
Thread: Metric vs Imperial - Practical or Traditional?
07/12/2010 17:17:41
Hi,
 
            Posted by Terryd 07/12/2010 15:03:35
     Good debate though, there's a lot of interesting stuff to learn.  Knowledge is never wasted. As the saying goes,"a mind is like a parachute,  most efficient when open".
 
                  Every day is a school day.
 
Regards Nick.
      
Thread: home castings / metal alloys
03/12/2010 23:35:11
Hi, Terry and Ady, watched myfordboy's videos, like you say very imformative, he just seems to take it all in his stride. Read about that guy sledging up his lathe in your link Terry, he had a very upset reader almost condemming him for such.
 
Regards Nick.
Thread: Brake Discs
03/12/2010 21:38:05
Hi, I once skimmed an old Cavaliar disc to use as a stand, that wasn't chilled.
 
Regards Nick.
Thread: Gauge Plate specs
03/12/2010 21:32:01
Hi, Workshop Practice Series No. 30 re Workshop Materials by Alex Weiss, puts gauge plate as high carbon steel with about 1% carbon content and small amounts of chromium, manganese, tungsten and vanadium. I think its OK for gib strips, but use as is supplied, don't harden.
 
Regards Nick.
Thread: home castings / metal alloys
03/12/2010 09:25:44
Hi Terry, in the short film I saw, it started of with a scene with his ladles ect. on top of his furnace for the very same reason. I just can't remember what happend that he overlooked that made the one he used damp.
 
Regards Nick.
 
P.S. looks like your losing a few years Terry.

Edited By Nicholas Farr on 03/12/2010 09:47:18

03/12/2010 08:53:46
Hi Howard, yes I remember watching a short film about damp and moister in moulten metal when I first started college back in the late 60's. Can't remember all the details, but it involved a bloke lying in a hospital bed wih bandages over his face and eyes trying to fathom out what he had done wrong, although he'd gone through all his safety checks. Turned out that damp had formed on his ladle somhow, but as I say can't remember the details.
 
Regards Nick.
Thread: Cutting steel plate
02/12/2010 18:09:00
Hi Gordon, but you should not have any contact as such on the sides of the disc, as apart from it being heated through friction, it wil have more likelyhood of nipping and that is when you lose control. Not understand the bit about a 9".
 
Regards Nick.
Thread: Mangled valve ports - help!
02/12/2010 17:30:56
Hi Bob, I to would go with the sandwich idea. Like Jason says solering would not be easy, you would need a fair amount of heat and it probaly wouldn't get hot enough in the right place. I was going to suggest gauge plate for your sandwich, but I've never had to try it. The pics in Jason's link look the business 
 
Regards Nick.

Edited By Nicholas Farr on 02/12/2010 17:34:07

Thread: Model Engineer Exhibition
02/12/2010 15:17:03
Hi David, the 48th was in Jan 79 and the 59th was Dec 89/Jan 90 so by calculation it would put it around 1984. Thats as close as I can say.
 
Regards Nick.
 
P.S. 57th Jan 1988

Edited By Nicholas Farr on 02/12/2010 15:18:59

Edited By Nicholas Farr on 02/12/2010 15:28:36

Thread: Cutting steel plate
02/12/2010 10:17:24
Hi Gordon, I wouldn't say it is any safer, as you can get undue drag against such things as wood, giving more tendancy for the grinder to be snatched out of your hands. One thing you should know about cutting disc is that they are only designed to cut on the egde of the disc, they should never  be used as a grinding disc, it can be potentionaly dangerous. A piece of flat steel about 2mm thick is the best sort of thing and should be moved out of the way once you have a shallow cut into the surface of the piece you are cutting. Drag on the sides of a cutting disc should be avoided. Better still just follow the line.
 
Regards Nick.

Edited By Nicholas Farr on 02/12/2010 10:18:33

Thread: home castings / metal alloys
02/12/2010 09:25:14
Hi, I have been of the understanding that if you allowed water or damp ladles ect. to contact the moulten metal, it would have this explosive grenade effect. Is this the case?
 
Regards Nick.
01/12/2010 19:42:51
Hi, reading these posts takes me back to the company I used to work for, During the 80's they used to produce degassing tablets for Ali' casting. They were made from a powder mixture full of all sorts of nasties, which was hand fed into a small hopper on top of this secondhand tablet making machine. (I think I made the hopper and fitted it) The machine was a double punching affair producing tablets about 40mm diameter by about 20mm thick. About 25% of the tablets had to be ground down again and recycled because they would split or lumps would break out of them, didn't look good like that for the custmers. The machine was always going wrong and the nasties were a bit corrosive on the steel punches. It was muggins here who had to fix it, as the others said they didn't know anything about it, mind you, I was the one who was shown all the ins an' outs of it by the old boy who used to maintain it in its previous life. Realining the punchs if they came loose was the worst thing. Happy Days.
 
Regards Nick.
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