Member postings for David Canham

Hi Simon,

That explains things very clearly, thanks for your well thought out response. I will be going along the Brian Wood route to threading nirvana and will therefore require at least the 33 and 34 tooth gears.

I will pm you re the 34 tooth gear.

Once again many thanks for your very considered response.

David.

Hi people,

I am just getting to know my Super 7B.

I have done some basic turning with HSS and indexable inserts and i am now interested in getting to grips with screw cutting. I have Brian Woods' excellent book Gearing of Lathes for Screwcutting and after reading it a few times i am ready to start.

I then had a proper look at the gearing set up behind the leadscrew drive gear guard and noticed the metric pitch chart pinned to the inside of the guard as the photo. So one question that comes to mind, the gears on the diagram - 60T and 63T plus the 50T and the 45T, are they both one piece items and do they mesh together across via the 63 and 50T. Also, are those gear sets even available.

Should i use that chart or just stick to Brian's way of doing it.

Sorry for so many questions but seeing that chart inside the cover has thrown me a bit.

All the best, David.

Hi people,

I recently bought a very nice Super 7 B from an ex club members son. He also has a small lathe marked up as 'F W Derbyshire' It looks like a watch makers lathe although don't take my word for that as I am a novice in this game. It comes with the separate drive pulley unit as well. The cross slide in the picture does not seem to fit the lathe, it is marked up with the name G Boley. If anybody is interested in these items I can give you his details.

The items are in SE London. All the best, David.

Thanks guys, I guess I just needed reassuring. Lets go for it.

David.

I must admit that the spindle bore was bothering me and the fact that most people advise buying the biggest machine that you can afford / fit in your workshop. However when I looked at the Myford yesterday it just had that appearance of a totally complete machine and the finish to it was first class.

It was quite sad to be in this guys workshop and looking to move his life time hobby away. He even had an 80 % built 5" loco that he knew he could not complete, it was started over 20 years ago.

I think that with the extras that will come as well I should go for it. I just need to work out the transport of half a tonne of milling machine now. A nice problem to have.

David.

I have nearly got my garage ready for some machinery. I have not owned a mill or lathe before and my leanings were for a new WM290V lathe and WM 18 mill from Warco. But now there is a spanner in the works, an old fellow in the club I am in cannot carry on with the hobby, old age and illness. He has offered me first shout on his equipment.

He has a late 1980's Myford ML7B which he has had from new and it does look immaculate, it will also come with quick change tool post and a host of other stuff as well.

The mill he has is a Gate Elliot 00, this he acquired second hand and comes with a three phase convertor. I must say that it is an impressive piece of kit and very heavy.

My machinery will be used for up to 5" gauge loco's plus some static stuff. I appreciate that you cannot see these machines but if they are as good as they look which way would you go.

David.

Well Jeff you have wetted my appetite for some more learning. I have just been on Amazon and ordered a copy of Metrology For Engineers. Good bedtime reading.

David.

Well that's given me some food for thought chaps, thanks very much for some really useful info on what taking a decent measurement is all about.

At the moment I am reading so many different books on loco building, boilers, injectors etc. etc. that swotting up on metrology might have to wait for a short while.

I think I need to go away and practice with both instruments and get a feel for them.

Thanks again,

David.

Hi people, I now have a micrometer and a Vernier calliper to use in my workshop but I have heard or read somewhere that the mic is the one to use for serious accuracy. how come? Both units are digital by the way.

David.

Hi Jerry,

welcome to the forum, you'll like it here.

David.

Welcome Rob, you will like this site they are a really friendly and helpful bunch.

David

Hi Keith

welcome along. my lathe is so new it has not even arrived yet. I look forward to seeing some photo's of your museum pieces.

David.

Hi Nigel, welcome, I am an old biker as well. Just finished with bikes actually and getting into model engineering. David.

Great stuff chaps, thank you. Just a little side question, I have never driven a 5" loco, or any model come to that so how easy is it to see the water level in the gauge glasses.

David.

Thanks for that Lofty. David.

Hi People, I have been reading up on boiler making and testing and something crossed my mind about the boiler water gauge. Am I right to assume that the full boiler pressure will at times be applied to the little glass tube. Can they really take up to 100 psi? David.

Hi Mark,

nice to have you on board, I reckon you could teach us a thing or two.

Well, me at least.

David.

Thanks for that Jon. Keep everything nipped up when machining sounds like good advice to me. No matter how new the machine is and mine will certainly be Chinese.

David.

Thanks Vic.

Fantastic site, so much to take in and good stuff for a beginner like me.

David.

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Hi Phil. welcome from another newbie. These people really do have (nearly) all the answers.

David.