Member postings for Brian Oldford

I think you'll find they are essentially the same thing, You might find C-clips only in the very small sizes. The larger sizes would need the additional stabilisation of the third tab thus making them E-clips.

Shoot me down in flames but that's just my two-penny-worth.

Dibnah
It looks like you've got the basis for what could be a nice piece of kit.

Can you put up some photos please. A picture says a thousand words.

Courtesy of Phil Grant I now have my Clough42 ELS control box. One of those jobs you need three hands to assemble. 😁

I used M3 x 22 Csk black cap-heads to fix it together. 20 mm or even 16 mm might have served OK.

Whilst you have it apart you might want to consider fixing the gib with a dowel. Such an arrangement reduces the wedging action caused by the gib sliding up any point on the screw and thus increasing the friction. There's one design in The Model Engineere Workshop Manual by Geo. H Thomas.

+1 for that.
Additionally I'm given to understand under-rating by too much can lead to poorer control of the sinusoidal waveform.

Well spotted.

There are some out there in what appears to be genuine Myford packaging that appear to have been made from rod.


They don't last very long.

Saves having to take the saddle all the way down the bed to insert a telescope gauge. etc.

Swing back boring bar holder perhaps.

I'm unsure whether to laugh or groan.

I concur regards the Tufnol gears. Steve also produces the excellent Meek/Myford carriage handwheel. Again no connection except as a very satisfied customer.

It's interesting to read peoples' comments about how little the "Millenium Bug" affected people. The real reason was because of the hard work put in before the date by IT professionals testing and updating systems to avoid those problems.
I worked in IT at that time and was on standby that night. Because of that hard work I earned a nice crust without a single phone call.

Unless you have access to some pretty sophisticated heat treatment equipment steer a wide berth from welding cast iron. Heating to fusion temperatures caused rock hard/extremely brittle carbides to form at the periphery of the weld. If you really must repair it using molten metal use nothing hotter than braze.

I know that a Portass lathe has imperial gears. I was simply reporting what that particular web site said.

For comparison Myford change gears are 20DP. According to **LINK** there's only a 75% confidence of it being 12 DP. whereas it's 94% for Mod 1.5.
The other important criteria id the pressure angle. Generally older gears tend to be 14.5° whereas more modern gears are mostly 20 °.

Edited By Brian Oldford on 04/07/2020 20:08:49

Assuming it's an imperial gear, do you know the DP? Myford change-wheels are usually CI.

Edited By Brian Oldford on 04/07/2020 18:09:12

Use the third axis to leave a few small tabs to hold the piece in place.

I would suggest manufacturing cost which would need to be passed on to the purchaser.

How can that be achieved when putting a key-way down a bore? I realise industry would use a broach nowadays but that's might spendy for a one-off.