Plate Thickness

[Tod Gilding]

I found this report, it's an interesting read, and a way that I have never heard of to determine plate thickness. useing a magnet

http://www.phys.unsw.edu.au/jw/reprints/WESPACInta.pdf

[Nick]

Here's the Analogue version of that principle Tod Not bloody cheap though!
Watch the video Dan Erlewine presents too, interesting to watch it in use.

[Tod Gilding]

WoW I think I will stick with my plane

I have just spent the morning thicknessing a spruce top to 4mm +/- .1 so that I can tap a tune into VA
I'm not finding it easy to get that accuracy over the board, and I don't have a long reach caliper to check the centre area yet, so something like this would nice, but out of my price range

[charangohabsburg]

Here's the Analogue version of that principle Tod Not bloody cheap though!

Make your own, it's cheap (I don't remember how much exactly but all the parts summed up to about 5$, or maybe 7$).

[Kamusur]

Markus you should be taking commision on these tips or even publishing a book.

Steve

[simso]

Nothing new, theres a brand name "elcometer" who have been using this principle of measurement for fifty years, I have a basic elcometer unit for non ferrous metals that was made in the 50's, they use it today to measure paint thickness's

[colin north]

I don't have a long reach caliper to check the centre area yet:(

Easy/cheap to make your own long reach caliper.
$20 Dial gauge clamped in a hole in the end of an arm extended over a base with a bolt (dome/polish the head) fixed in the base.

[kiwigeo]

Nothing new, theres a brand name "elcometer" who have been using this principle of measurement for fifty years, I have a basic elcometer unit for non ferrous metals that was made in the 50's, they use it today to measure paint thickness's

Wouldnt work on this oil rig Im on at present...in places the layers of paint are over a foot thick.