Yet another resistance decade box

[smgvbest]

Mine arrive Saturday also
Thank you very much and like others waiting on the switches now

[gblades]

Mine arrived today thanks.

[Fortran]

Great! 

[Back2Volts]

I received the switches today.   Ordered from Hong Kong July 7.   I think it is a fast delivery.   I am pleased because the set has the two mounting brackets.   Nice small things.

Now I am thinking about the box to mount it in and the connectivity.   The box, the smallest the better.   I am wondering if just two good quality plain wires through small holes with some mini clamps would be practical.   

Any thoughts ?

[garnix]

Nicely packaged! I think I order too much from AliExpress and I'm now surprised if I get something that nicely packaged 

 I received my 3 packs last Friday - thanks!

[bitseeker]

I am in a small town in central Minnesota and received then yesterday.   I gather you are in the West coast.   You should get them on Monday.

Yeah, no joy for me yet. But, I'll give it until the end of the week. Maybe someone scanned it, thought it looked like a very peculiar piece of mail, and now there's a crew behind blast shields opening it with a robot.

[natman69]

Please, can anyone suggest a reliable supplier for the KM2 switches?

This seller

http://www.ebay.it/itm/301726653090?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

can ship to Italy (out of eBay because of negative feedback from italian users) but at the moment the item is out of stock (and he answered that he must wait his supplier to produce the switches…)

while this seller

http://www.ebay.it/itm/291552388297?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

answered that he doesn't ship to Italy.

Thanks in advance!!!

[Back2Volts]

I got mine here  http://www.ebay.com/itm/310827089552?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

The ones I received have "book ends" not shown in the picture.   Not sure if it will ship to Italy

Edit: added a picture of the set with the ends.    I think that provided that the box where they are installed has a hole with snug fit, and the set of switches is bundled together with a tie or just some electrical tape, the set should snap in and stay in place securely.

[Blastcap]

Am i too late for the show?
Specifically a set of 6 with 0,1%, unsolderd.

[Fortran]

No you're not.
But I've sold out and need to order some more resistors.

I should be able to send some more kits around 1/8.
There will be a small adjustment on the price though, since the resistors I ordered last time is no longer in stock.

[Back2Volts]

Are all KM2 switches supposed to be the same size?    I am asking because the vendor I ordered from lists a KM2 set in white with size 22x8 instead of 18x6.   I think getting another set in white for the 0.1% I will be getting would be a nice way to differentiate them.   

http://www.ebay.com/itm/10-Pcs-KM2-0-9-Digital-Decimal-Coded-Pushwheel-Switches-White-22mm-x-8mm-/230980234751?hash=item35c77eadff:g:KOwAAOSwjVVVlXPP

[PuterGeek]

No you're not.
But I've sold out and need to order some more resistors.

I should be able to send some more kits around 1/8.
There will be a small adjustment on the price though, since the resistors I ordered last time is no longer in stock.

I've thought you were all set with more 0.1% resistors so already sent my money and a PM. Let me know how much more I need to send.

Thanks!

PuterGeek (aka Joe Stockton)

[ez24]

I am asking because the vendor I ordered from lists a KM2 set in white with size 22x8 instead of 18x6.   

Maybe Fortran can move up to 22x8 and since they would be easier to solder (if bigger SMD), he could sell these on a production basis. (until the Chinese make copies).  These seem to be a good item to have on a workbench and thus I think there is a market for them (think ebay)

Fortran why don't see if you can earn some money on this venture? (unless you do not need any)

[Back2Volts]

I am asking because the vendor I ordered from lists a KM2 set in white with size 22x8 instead of 18x6.   

Maybe Fortran can move up to 22x8 and since they would be easier to solder (if bigger SMD), he could sell these on a production basis. (until the Chinese make copies).  These seem to be a good item to have on a workbench and thus I think there is a market for them (think ebay)

Fortran why don't see if you can earn some money on this venture? (unless you do not need any)

That was not the point I wanted to raise.   I am happy with the small size, because I believe, the smaller is the unit the closer to the test breadboard it can be placed, which in cases may be important.   

What I was trying (no too well) to ask, is if there is an inconsistency between "KM2" and "22x8".   I thought KM2 implied 18x6, but I may have been wrong all along.   

[Fortran]

My guess is that the seller doesn't really know? 
16 or 18 is the correct height.

[Janne]

Sign me up for a kit of 0.1%

[ez24]

My guess is that the seller doesn't really know? 
16 or 18 is the correct height.

Interesting.  I will order the large one and check it against the small one I ordered

Edit :  I found this large one and ordered it. 

http://www.ebay.com/itm/10-Pcs-KM3-0-9-Digital-Decimal-Coded-Pushwheel-Switches-Black-31mm-x-10mm-/310668820375?hash=item48554dff97:g:YEcAAOSw9N1VpybP

[Fortran]

Sign me up for a kit of 0.1%

Will do!

Interesting.  I will order the large one and check it against the small one I ordered

It won't fit.  The board on that one is too big.
You can tell from the holes all being in a straight line.  On the correct one they go around the edges.
Well unless it's a BCD switch.

[bitseeker]

Got my kits on the West coast. My first letter from Finland.

Thanks again, Fortran.

[Back2Volts]

My guess is that the seller doesn't really know? 
16 or 18 is the correct height.

I think you are right.   The seller has not ever touched or even seen the merchandise.   He is located in Hong Kong, but the shipment came direct from Shenzhen.   Before ordering I had asked him if he sold the end brackets and he replied no.   I was surprised when the black set came with the end brackets.    He must be a re-seller that forwards the orders to another outfit.

I will order the white ones for the 0.1% set which you will hopefully ship next month.   That way the 1% and 0.1% will look different.

[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]

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

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