Member postings for ega

Neil Wyatt:

Thanks for the link which, however, takes me to a page where the only reference to "carbide" is to indexable carbide tipped tools.

Hopper:

I couldn't find this interesting item on the EE website.

I shall read this with interest as I always thought the original design was rather basic. I hope the news will include information about the reasons for any changes.

Mick B1:

Your impressive feat of parting off 2.5" dia silver steel with that blade makes the point that the "best" toolholder/blade and/or insert combination will be of little use on an unsuitable or badly-adjusted lathe; speeds, feeds and lubrication are also important.

Edited By ega on 05/12/2017 17:58:39

Gary of Eccentric Engineering makes a persuasive case for his Front or Rear p/o toolholder. I bought one for use on my larger lathe but found the 2mm blades I opted for rather fragile and pricey (I believe he offers blades down to 1mm wide). I am now using a tangential insert tool from ISCAR.

On the Myford, I long ago made the GHT rear toolpost and, by and large, it does everything I need. I had one of the KIT-Q-CUT insert tools from Greenwood Tools for a time; this worked well but I found the cost of replacement blades uneconomic.

My personal preference is for p/o tools with minimum overhang on the Z axis.

Edited By ega on 05/12/2017 18:01:14

SillyOldDuffer:

If your work-stand is a B&D WorkMate then those acme screws are probably twin start, a feature that the late Ron Hickman apparently regarded as essential to his design. In principle, the screws could have been of vee form but I wonder whether the acme stands up better to the swivelling action of the rear jaw.

The early versions actually mounted a conventional woodworking vice which in production form was replaced by the two-part top/vice; natural, then, to carry over the vice screw to the new design. I don't know whether the idea of screws of opposing hands was considered.

Adrian Giles:

Try "roasting" them on a bed of salt in a heavy frying pan on the hob.

SillyOldDuffer:

My thanks, too, for the CH81 tip.

I have never understood why these routine updates don't install automatically. As I understand it, it is necessary to update both TV and PVR if installed and to reinstate future programmed recordings.

I understand that chalk was part of the normal equipment of oldtime turners; they used it to mark change wheels for screwcutting and to mark leadscrew bosses which lacked micrometer dials.

Someone truing a cycle wheel with limited facilities might well resort to chalkmarking.

Hard to see from the photo but the cutting action may be similar to that of those excellent chatter-free countersinks where the cutting edge is formed by the convergence of a hole at 45 deg to the tool's axis with the 90 deg, etc cone.

Did you check subsequent ME Postbags to see if anyone wrote in about it?

http://www.sofmilitary.co.uk/british-army-clasp-knife-by-joseph-adams-product,19487

I have an earlier version dated 1941 - carbon steel rather than stainless and without the spike but with the traditional black chequer grip. I wonder why this last feature was abandoned?

Piero Franchi:

Congratulations on your "full restoration" - I assume this is not one of those situations where you have left over parts and don't know where they should go!

I looked at your "blog" [=album]. The individual gears look like Myford gears but it would help to know the diametral pitch and pressure angle. That said, if your gear train and/or gear box are working properly you probably needn't worry about the identity of the mystery parts.

This post will remind more knowledgeable Super 7 owners of your question and I hope your curiosity is satisfied in due course.

Martin King 2:

Thanks for your response. I have never felt at home with American threads but I think it more likely that your level has ANF 10 - 0.190" OD x 32 TPI and, of course, 60 deg thread form.

I have a 12" one of these lacking a cross vial. Checking the Starrett catalogue, I notice that the longitudinal groove in the base is of involute form for better seating on large shafts - something new every day!

It may not matter much but I doubt if a Starrett level has BSF fasteners.

The level looks very nice.

Roderick Jenkins:

I invite you to look at my Smith-type taper gauge album.

Better a Muppet frog at the controls of this fearsome steed than a Toad of Toad Hall!

The current usage seems to relate to possessions generally and would, of course, include gifts. I am not sure whether I feel better about the self-inflicted or the gifted.

David Colwill:

Brewer supports your white elephant derivation. It makes you wonder why there used to be White Elephant stalls at fetes!

Tim Stevens:

"There is useful stuff about full-size steel tyres in 'The Wheelwrights Shop' by George Sturt (1923 with reprints much later)."

As it happens I am re-reading this minor classic at the moment. Another work on a par with this which you may well know is the slightly later The Village Carpenter by Walter Rose.

From memory, Gerald Wingrove's book describes the process.