Here is a list of all the postings Douglas Johnston has made in our forums. Click on a thread name to jump to the thread.
|Thread: For the latest in PC fashion! (Anyone here with a Master's Degree?)|
Just because we have used certain terms all our lives and don't think about them as being linked to things like slavery, perhaps we should move away from some of the old terms which clearly cause offence to others.
|Thread: Gone to the great workshop in the sky|
Another idea is to use a local general auction house. My local one has an auction every fortnight and there is always a good selection of tools for sale. I am often very surprised by the high prices people are willing to pay for such stuff. The advantage is that you don't need to know what things are since the public can make their mind up on viewing days before the auction. The downside can be the charges made by the auction house, but on the other hand heavy items don't need to be delivered to a buyer.
|Thread: Adjustable angle plate|
|Thread: Putting the clocks back|
I have a couple of these radio controlled clocks which worked fine for a few years then one of them started to slowly gain about two seconds a month and refused to change time when the clocks changed. I tried moving the clock into various locations and changed the batteries but nothing would make it work properly. On the point of throwing it out I tried one last location on the roof of my outside workshop. Next morning the clock had adjusted itself correctly, but I have to do this every 6 months to keep the right time.
|Thread: Kerr's Minature railway closing|
So sad to read this since I live only a dozen miles from the railway and had many wonderful rides on it as a child. I hope someone buys the track and trains to set up elsewhere so future generations can benefit from it. As if we needed more bad news
|Thread: Threading trouble|
A hand crank is a real asset when threading. I nearly always do it that way, it is much more relaxing than doing it under power. A bit of a pain for long threads, but they can often be done under power. Carbide thread cutting inserts don't seem to mind the slow cutting speed.
|Thread: What cleaning solution?|
Lidl in the UK sell 1 litre tins of universal solvent at a cheap price. I think it is mainly acetone and probably makes a good solvent for hammerite paint since branded hammerite thinners cost an arm and a leg.
|Thread: Where's this rust come from ?|
I store any items like V blocks in individual small plastic containers. It is not a perfect solution but does keep them safe from mechanical damage and rust. The little plastic pots sold in supermarkets for storing food are perfect and not expensive.
|Thread: interest renewed|
|Thread: scraping technique|
Looks like I have been doing things the right way then. I just wondered if there was any special reason why bluing the part rather than the surface plate is advocated at all by some people.
There is some confusion in my mind about the best technique for scraping a flat surface. I have in the past put the blue dye on a surface plate and then carefully moved the object to be tested over the surface plate. On lifting the item off the plate I scrape the spots which have picked up the blue dye.
Other people seem to put the blue dye on the surface to be checked, leaving the surface plate clean, then move the item over the clean surface plate. On lifting the item the scraping takes place on the areas where the dye has been removed.
I suppose both techniques amount to the same thing but is there any reason to use one technique over the other?
|Thread: Myford speed10 / ml10 apron disassembly|
As Clive has said there is not a lot involved in dismantling the carriage. The allen screws are imperial so use the correct key. I dismantle mine every year or two and clean out any swarf that has managed to get trapped under the carriage. I then run a very fine slip stone over the top of the flat bed to remove any minor dings before reassembly. Slideway oil seems to work fine on the bed and leadscrew. I found swarf on the leadscrew was a problem before I fitted a cover to protect it.
Like others I have been wearing varifocals for years. At the start it took just a couple of days for the eyes (or is it the brain? ) to adjust to them. I do however find a problem in the workshop with close things like machine dials etc. and find myself removing the specs for clearer vision. Perhaps my prescription needs changing but I won't be going anywhere near an optician while the covid virus is still a problem. Roll on the vaccine!
|Thread: Can anyone supply a lead for grub screws|
I have often cut and drilled stainless ones, since all the ones I have used were never hardened. They are not as robust as hardened steel ones but usually fine and they don't rust.
|Thread: decent 4 jaw chuck to fit myford speed 10?|
A 5" independent chuck was what I got with my Speed 10 lathe and that would seem to be the best size for the lathe. I also have a light weight 6" one which I have often also used on the lathe to hold larger work although one has to be careful since the outside diameter just clears the lathe bed.
|Thread: Diamond Lap for sharpening Brazed TC tools|
How long before the crocodile clips touch, but the idea is great.
|Thread: The making of Steel Balls|
No wonder quality bearings are so expensive. So many corners to cut with cheaper bearings. The balls from quality bearings make excellent references for checking micrometers etc.
|Thread: Using Counterbores|
I had the same problem with a couple of my counterbores in that I did not have the correct size drill before using the counterbore. I simply solved the problem by holding the counterbore in an accurate collet chuck and used a sharp polished carbide cutter insert to reduce the diameter of the front part of the counterbore. Worked a treat on the hard HSS and left a mirror finish. It never fails to amaze me what you can do with this type of carbide insert.
|Thread: Stuck oil filter|
Edited By Douglas Johnston on 09/07/2020 11:23:32
|Thread: Yipee the F1 is back on|
My only hope is if C4 in UK shows highlights since I don't have Sky.
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