Electronics > Projects, Designs, and Technical Stuff

New uRuler

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timofonic:

--- Quote from: thx130 on October 12, 2015, 02:20:31 pm ---
--- Quote from: DutchGert on October 01, 2015, 06:54:15 pm ---A little bit offtopic but does anyone know a (cheap) fab where I can order some selfmade rulers? A lot of cheap fab houses don't offer very good silk screen resolution and since that is key here i'd like to know what fab houses do offer high quality silk screen for a compedative price.

--- End quote ---

Ask for Photoimagable Ident, it is more expensive but much sharper than the inkjet or silkscreened ident used as standard.

Source: work for a ciruit house

--- End quote ---

That's interesting.

What about making symbols be able to be used to draw them? I posted some images about it, I think.

Maybe the manufacturer could get crazy about so many drilling?

johnh:
i will take another set of 5

tomy983:
Would love one!

EEVblog:
Wow, I can't believe it's been 2 years since I did this v3 µRuler  :o
Guess I should get off my arse and do some more.
I'm just looking at it again and thoughts on the back side imperial scale. Do I need all those different scales? (might be confusing?), or will just two different ones be enough? If so, which ones?, I'm not a Yank so I don't really know what are the most used imperial scales
Other stuff to add/remove?

CatalinaWOW:
I am sure there are many opinions on this, but the only imperial scales I use with any frequency are tenths, eighths, quarters.  Sixteenths occasionally.  Thirty seconds and sixty fourths never.  Same for twentieths and fiftieths and hundredths.  When needing more accuracy a ruler isn't the tool and decimal fractions are the answer, even in Imperial units.  I have never seen a micrometer calibrated in 512ths or whatever, and most of the calipers which have fractional scales also have sensible decimal scales.

I would consider extending the temperature conversion table to cover temperatures found worldwide.  -40C to 60C would cover ski areas and northern Europe, while getting most of the automobile in the sun temps.  The five deg C resolution is appropriate.  If you need tighter you go to your calculator or a bigger table.

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