Member postings for Malcolm BEAK

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

31/07/2020 10:31:33

Certainly looks homemade. I see it uses castings for the uprights/crosshead guides. Probably castings for the cylinders. A shame it uses round head screws rather than decent hexagon bolts.

If no one else wants it I would be interested in buying it from you.

Malcolm

Thread: Turning Eccentics in Three Jaw Chick

16/11/2009 23:16:05

Alan

I'm probably a bit late with this

The equation given in Model Engineers Handbook is:>>

> >

T = 1.5E[1-E/2D - 3/8(E/D)³]>>

> >

E = the desired eccentricity>>

D = the OD of the material being gripped in the chuck>>

T = the thickness of the packing>>

> >

The portion of the equation in red is very small and can safely be ignored>>

Rather than work it out each time, it’s easiest to make up a spread sheet.>>

Malcolm

Thread: good beginner book - timing diagrams, etc

08/06/2009 14:31:10

Des

There's a huge amount of information on Ron Churnich's site at http://www.modelenginenews.org/ It includes loads of "how to" pages and advice on suitable engines for first timers. It's been running since May 2002 with monthly "news sheets". Loads of links to other useful sites.

I also have the Motor Boys book, and have built the Fig Tree Pocket Twin, but as a water cooled marine engine. If you go to the above site, then engines, gallery, page 8 you will see a few photos of it.

Malcolm

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