Electronics > Projects, Designs, and Technical Stuff

Yet another resistance decade box

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Fortran:
I think the gray ones are prettier :)
http://www.ebay.com/itm/391269356283

smgvbest:
just for reference here's the 18x6 and 22x8 for comparison



smgvbest:
I've been playing around with a case design for the 18x6 ones.   it needs some tweaking and to actually be printed (and my 3D printer is awaiting a new hotend to arrive).   I can't print right now but here's what I've designed for a case.

100mmx60mmx25.4mm   (just a starting point,  like i said needs tweaking)
(edit,  actually a bit bigger, the square part of of it is 100x600)
designed to be stackable (magnets on bottom, countersink screws on tops)
setup for 4W on back (.75in spacing)
2 piece print

One tweak is I embossed the top by 1mm,   kinda messes up the stacking after I looked at it
fixed this by adding a 1mm recessed area then embossing by 1mm (see capture4)

Comments welcome, changes, tweaks all welcome.
happy to post STL to thingverse when done (or just here if preferred)

note:
i had a 10 decade thumbwheel and that's the dimensions I used.  it could be smaller for a 6 decade unit


bitseeker:
I like it, Sandra. What's the minimum length possible (i.e., would the case bump into the switches first or the binding posts)?

ez24:

--- Quote from: smgvbest on July 21, 2016, 09:50:40 pm ---just for reference here's the 18x6 and 22x8 for comparison

--- End quote ---

Just an uneducated guess - but wouldn't the larger one be easier to work with ?  (I haven't got my goodies yet)

I wonder when the Chinese will read this topic and start making these?  Seems a really good item.  Who came up with this great idea? 

Any other ideas what to do with these switches.  I am thinking about a combo lock

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