Member postings for Keith Rogers 2

One advantage I found when I had my 2B was if I had a job that was too tall to

go under the vertical head I could lay it flat and use an end mill or fly cutter in the

horizontal spindle. Effectively giving me the capacity of a much bigger machine.

Keith

I used to use Alexander Industrial Supplies,

but they seem to have been taken over by www.essentracomponents.com/en-gb

as suggested by Andrew Entwistle.

Keith.

Andrew,

Try this www.calculatoredge.com/mech/vbelt%20length.htm

Regards,

Keith.

Louis.

Try www.lathes.co.uk for all sorts of belts including flat belts.

Usual disclaimer.

Keith.

Thanks for the replies Tim and Russell much appreciated.

Regards, Keith.

I have been aware for many years, and in fact NDIY has just mentioned, that transformer laminations should be electrically isolated from each other.

Can anyone tell me how come modern laminations are welded together, and what effect that has on the efficiency of the transformer?

Keith.

+1 to that. Well said Neil.

Keith

Are you speaking from experience Neil ?

Keith

I apologise for that. Of course it is!

I was thinking of Nickel Silver which I believe isn't magnetic.

Keith

You can't magnetise Nickel

See OP.

Keith

Ronan, I don't know what sort of size spring you require but these people supply replacement clock springs and may have something you could use.

https://www.cousinsuk.com/category/mainsprings-clock

Keith.

p.s. I should maybe add I've not had any dealings with them. I only know of their website. It's worth a look.

Nice one Peak.

Keith

Can anyone tell me why Peters post is upside down?

Keith

Neil, I have no practical experience of 3D printing so maybe talking a load of rubbish But would it be possible to print the lower layers, stop the print and insert the acrylic window and then resume printing. The acrylic might support the final layers. Of course there is always the chance the acrylic would buckle with the heat I suppose. But I would be interested in your views.

Keith

I quite often leave some clay residue on the toner traces. Providing the copper is clean and the lines are nice and crisp it doesn't seem to affect the etching process. After etching it will all clean off with cellulose thinner, acetone or something similar.

Keith.

I was told many years ago by a toolmaker that the point on a small tap was thereto fit a female centre on the thread grinding machine.

Keith

Hi John,

I use isopropyl alcohol on a piece of tissue, it doesn't remove the laser toner if you don't rub too hard.

Keith

Amazing how this thread has gone from the humble tape measure to the discussion of the speed of light.

That's forums for you

Keith.

Hi Ian, You could mount a die stock/holder in the four jaw to run true and machine out a few thou, just enough so that when the die is fully open it cuts the diameter thread you need. That way if you are unfortunate enough for the die to crack it will still be located in the holder. As JS said it doesn't matter if it cracks if it's a clean break it will still locate. The advantage of doing it that way is that you can have a dedicated holder set to size and have the repeatability you require. It also saves you having to set up for screwcutting every time.

Keith