Member postings for Edward Bright

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

03/07/2017 05:27:13

The americans worked this out years ago, essentially the spindle isn't stiff enough to resist sideways movement. A couple of solutions appeared in Popular Mechanics involving a stiffening arm attached to the pillar.

This is the earlier version: http://www.packratworkshop.com/pdf/drillpress-millmod.pdf

Best solution, augment the pillar drill with a vertical mill or mill/drill.

Thread: Accessory Materials

24/06/2015 03:34:27

The late Phil Irving (Vincent HRD, Repco Brabham etc) always argued that duralium with a 20% increase in cross-section was as strong as mild steel to all intents and purposes. If I remember my materials engineering correctly it isn't good in cyclic stress situations, ferrous metals always have lower limit below which fatigue cracking will not occur, aluminium in particular does not.

Edward

Thread: A very small Shaping Machine ...

24/10/2013 00:47:11

At the risk of bringing an American influence into the discussion, try these two references under Popular Mechanics magazine in Google Books:

Oct 1955 - Metal Shaper for Your Shop - pp227-231, an article about building a manual 3inch shaper by S.S. Miner

Nov 1928 - A 6 inch Bench Shaper - pp869-871 - a motor driven shaper by J.V. Romig

Edward

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