Finding dowel pins in ground surface?

You could use a dye-penetrant spray like those sold for finding cracks in wire terminals and other fittings. Or try mixing a little layout dye into some penetrating oil and coating the part. Let it sit for a while, then wipe off. The outlines of the pins should show up. Regards,

Bob

Tom, Try this stuff (magnetic particle bath)

Can you wire wheel the surface? Might make them show up better than putting dings all over the place until you find them.

A company called "Magnaflux" ?used to make equipment for checking cylinder heads for cracks. They had a powerful magnet that latched onto the head. A little puff pack then was used to spray powdered iron in the suspect area. The powder built up around any discontinuity in the magnetic lines of force, and showed up cracks even when they weren't visible otherwise. Tom

Nitric acid may do the job.

Gunner

"At the core of liberalism is the spoiled child - miserable, as all spoiled children are, unsatisfied, demanding, ill-disciplined, despotic and useless. Liberalism is a philosphy of sniveling brats." -- P.J. O'Rourke

"Tom Miller" wrote in news:csvihf$rok$ snipped-for-privacy@possum.melbpc.org.au:

A speaker magnet and grinding dust will do the same job :)

On Sun, 23 Jan 2005 18:08:27 +1100, the inscrutable "Tom Miller" spake:

I much preferred the dye magnaflux, SpotCheck.

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Maybe the stuff used to read obliterated serial numbers, such as

Try use a dye penatration spray. The outline of the dowel will show up as a small crack would. Sometimes a simple spray with penatrating oil, let sit for a minute or so, then wipe the surface show the outline.