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Member postings for donkey

Here is a list of all the postings donkey has made in our forums. Click on a thread name to jump to the thread.

Thread: Myford Super 7
27/10/2012 14:44:58

In november 1979 a super 7B was £1010 c/w motor chuck and stand. from javelin tools.

Brian

Thread: Chemico grinding paste for valves only?
13/08/2012 11:41:09

kwil is correct anodized aluminium should not be scraped as you will remove the surface but on no account should grinding paste be used as it will embed itself in the surface and accelerate the wear. a useful link is........

**LINK**

martin you should be able to scrape a hard surface if your scraper is harder and sharp I believe some of the lathe beds I scraped were hardened but I was using a carbide scraper one lathe I do remember was a dean smith and grace and their website says the following

The bed was made from a semi-steel mixture with a Brinell hardness of approximately 200.

hpoe this helps.

Bri

13/08/2012 08:43:27

Throw the grinding paste away you dont want that near your lathe. start practicing scraping. you also need a flat plate larger than your lathe bed. you ideally need someone to show you how to scrape but you can easily scrape your way to success. with engineers blue an old file and a flat plate( I have used a glass sheet carefully supported on a sheet of ply)you tube has scraping sessions. and remember the blueing looks much worse just before it gets better.Not a very good explanation but good luck. oh yes the file is made into a scraper not used to file metal.

Bri

Thread: Newbie requesting info
16/05/2012 16:26:39

Hi Adam

when I started my apprenticeship I made a lot of tools as per the engineering training board drawings and because I was a machine tool fitter and thought I would not need them I gave a lot of them away. now some years later I wish I had kept them because I have a workshop of my own, so maybe think hard about the future before you part with your tools.

Thread: Marking metals
14/05/2012 12:43:14

Is this what you are looking for

from Donkey

Edited By Katy Purvis on 01/06/2015 12:28:17

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