Member postings for steamdave

I bet Tony Griffiths at lathes.co.uk would be very interested in your tool - and may well be able to help with more details.

Dave
The Emerald Isle

Edited By steamdave on 01/12/2017 17:33:32

Same problem as others trying to log on to Yahoo Groups - getting the error message:

I contacted Sumitomo for their advice and they informed me:

Hello David

I have just ruined my parting off tool blade type SGFH 26-3. I have a number of spare GTN 3 inserts so don't want to change types.

New blades can be quite expensive, but I have seen a brand new Sumitomo blade for not a lot of cash. However the designation is STFH 26-3.

Question: What is the difference between SGFH and STFH blades?

I've looked through the Sumitomo website and they state the insert for STFH is WCF. Is this the same as GTN types? (They look the same in the pictures!)

If my inserts are compatible with STFH I will go with that type of blade.

Dave
The Emerald Isle

As an aside... The engineers on board would sometimes play tricks on their mates when an engine overhaul was being undertaken. The usual thing was to hide a couple of bolts before rebuild, but an evil one would throw in an extra bolt, causing a bit of head scratching for a while.

Dave
The Emerald Isle

Thanks Rod

Should have studied the chart more closely. And I've had the cataracts removed !

Dave
The Emerald Isle

Question for Rod - or others:

The smallest metric pitch with the simple gear change a al table above is 2.0 = M15, which is quite coarse for my likely usage. Is there a way to cut smaller pitch metric coarse threads with a simple gear change? M10 - M2 is probably the range I would likely need to cut. OK, M2 - M5 would be by dies, but it would be good to know if it could be done.

Dave
The Emerald Isle

If you are not already a member, I would recommend that you join the Yahoo group for Myford lathes.

https://groups.yahoo.com/neo/groups/myfordlathes/info

Lots of very helpful knowledgeable folk there.

Dave
The Emerald Isle

Only one problem there: what happens when you are parked up in a traffic jam on the motorway with stop-go for 15 miles or more and you are low on battery power?

Dave
The Emerald Isle

An interesting observation from Australia on global warming, although dated June 2011:

http://carbon-sense.com/wp-content/uploads/2011/06/a-cool-look-at-global-warming.pdf

Dave
The Emerald Isle

Over here in Ireland, Diesel is 10c / ltr cheaper than petrol.

About 12 years ago we were all 'persuaded' to buy diesel vehicles because of the evil petrol pollution. Now the Greenies want to bring the cost of petrol up to match diesel because of the evil diesel pollution, and they wonder why they don't get any votes.

Dave
The Emerald Isle

Aha, another ex jolly Jack. Remembering the good old days!

Dave
The Emerald Isle

Very interesting observation, that. I've always thought that they were Stainless of some grade. I've got quite a stock of printer rods in various diameters and from different makes and have never had any problem machining them and getting a very good finish using HSS tools. Guess I'm just lucky.

Dave
The Emerald Isle

I have my Myford lathe on the cabinet stand with raising blocks and found the operation uncomfortable because it was too low for me. I'm 6ft tall. Problem solved by bolting the stand on 2" x 2" hardwood laid front to back. This also cured any possible instability issues. The lathe is free standing on the floor without problems.

Dave
The Emerald Isle

In reply to Martin, above, I must say that any questions that I had about my Wabeco mill have always been answered courteously and promptly by Bryan at Pro Machine. If he could not give me an answer straight away, he would always get back to me when my query could be answered.

Still doesn't solve the quality issues with the machine, though.

Dave
The Emerald Isle

If you have or can borrow a copy of GHT's book on making the Universal Pillar Tool, he explains how to make a cotter. They are used to hold the arms to the column and column to base.

Dave
The Emerald Isle

You hope it's not night time and use your solar PV panels. Or connect your hamster's wheel to a charger/inverter.

Dave
The Emerald Isle

My set of ER32 collets arrived in grease proof paper - or whatever the brown stuff is called, so a storage board was needed. I made mine from a piece of white 'plastic' food preparation board. Just drilled a series of holes slightly smaller than the max. diameter of the collet. The sides are tapered to give a slight angle for easy selection and they are screwed to the main board.

No chipping or oil soakage sith this material and it's easy to keep clean. Only possible downside is that I can't attach a size tag for the collets to the board - glue won't stick!

Dave
The Emerald Isle

My Pratt Burnerd Gri-Tru chuck had the cavity filled with grease from new. If grease is good enough for PB, then it's good enough for me.

Dave
The Emerald Isle

I had a tatty handwheel on an old tailstock where the chrome was missing in areas around the rim - not worn but 'chunks' missing. I was surprised at how thick the plating was and how difficult it was to get the remaining chrome off.

After a while trying to chip the old chrome off and also using various abrasive substances, I gave up and sold on the tailstock with the wheel in much the same state as when I got it. The edge bits were very sharp and I cut myself a couple of times but I'm still alive to tell the tale.

Dave
The Emerald Isle