Member postings for Andre ROUSSEAU

New uses for DVD players salvaged from e-waste....

Edited By JasonB on 18/01/2023 06:53:12

The Cheapskate Induction Hardener:

Have a 'Google' at this!

Just for fun!

https://youtube.com/shorts/wOlrhk9Ioyw?feature=share

Very clever!!

https://www.youtube.com/watch?v=oCFfvmREacA

... a general YouTube search under "polygonal turning on the Lathe" will yield up more fascinating gems. Did you learn something today?

Pitching this post to any owners of the Russian RYAZAN 1M63 Lathe, which is a Soviet-era copy of an older German lathe. What sets the 1M63 apart is the fascinating taper-turning facility which you'll find on no other lathe. Although a comparative walk-in-the-park for modern CNC machinery for a manual lathe the 1M63 uses the little-known combined feeds technique for machining tapers.

Go searching for this on YouTube for instance and you'll drown in videos on all the orthodox methods and everything in between but astonishingly, nothing on the combined feed arrangement as used on the 1M63.

My request is, for any 1M63 owner out there could they please do a descriptive video explaining the features of the driven compound slide followed by the facility in action. Post the link to the video here. I am confident it will be well watched. Also, could they also post all the relevant pages from the lathe owners manual especially any exploded view diagrams showing the internal mechanism.

Trying to find a web-link(s) that can tell me more about the German development of low shaft-height blast furnaces during WW2 that enabled them to use Thermal coal for coking (their dirty Lignite). The resulting iron had a high Sulphur content. I believe that a lot of this work was centred in Colbe (not sure about the accuracy of that name). Anyone have any information?

Also, additions of Manganese are used to de-Sulphurise molten iron. How much access to Manganese did Germany have in WW2?

Christmas is already 8 months ago but I guarantee there'll be another one soon!

Hi Martin, what i am particularly interested in are novel designs of 'semi-turbine' that straddle the definition of 'pure' turbines and displacement type of engine. I don't think Mike will go there but they offer intriguing experimental possibilities to those adventurous model engineers who want to pioneer new ideas and not merely follow in the foot-steps of others.

French Scrap-Metal Dealers/Recyclers Trade Association

Is there one and if so, does anyone have a contact link they can share? (NB I don't want just general recycling contacts; specifically scrap metal).

Thanks.

The link you WILL want to see! https://cnctar.hobbycnc.hu/ANTAL%20G/szikraforg%E1csol%E1s/EDM%20by%20Robert%20Langlois.pdf

Enjoy!

In reply to Dunc's post on the POPULAR SCIENCE article, it was a very simple and interesting circuit but there was some dispute over whether the Diode orientation was correct. Also, as I recall it never made any mention whatsoever of how the electrode was advanced except that the pictures I think show a simple hand-wheel, bit tedious if you ask me and left me puzzle as to how the discharge spark could be maintained (at half line frequency). Also, interesting was that it used Kerosine for the dielectric fluid and not water as currently used.

Also with further reference to HSM magazine, they published a sophisticated design around the late 1990's. Contact them to buy the article re-prints although I recall it was subsequently re-published as a book.

Hi Peter, This may be of help in your search: The American magazine "Home Shop Machinist" regularly advertised and marketed Lautard's many books. A quick e-mail to them will, I think lead you to what you are looking for. By now, he may well be dead but HSM will still have some information, I'm sure.

Happy hunting! Cheers.