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Test Equipment Anonymous (TEA) group therapy thread

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Specmaster:

--- Quote from: Vince on July 03, 2022, 03:20:36 pm ---
--- Quote from: TERRA Operative on July 03, 2022, 03:14:14 pm ---
--- Quote from: Vince on July 03, 2022, 02:47:01 pm ---[img width=6°°]https://www.eevblog.com/forum/testgear/test-equipment-anonymous-(tea)-group-therapy-thread/?action=dlattach;attach=1528393;image[/img]


--- Quote from: TERRA Operative on July 03, 2022, 01:27:08 pm ---Boy, do I loooooveee hole punches, waayyy better than nasty holesaws.  8)

--- End quote ---

I don't understand... must have misread your previous post... though this amp was just a very vague long term project... and now you present us with a chassis... could you have been lying to us.... no, you would not do that.

Looks very clean/professional indeed... but what machine did you use that had enough force to punch through that metal, smoothly, i a controlled manner ? Surely a flick of a hammer won't do it... do you have a press ? That would be to just as interesting to see as the resulting holes... because I sure am interested as well.... links/costs etc....

--- End quote ---


Ha, I used a sheet metal punch, to cut the holes in a chassis I've had ready and waiting for a while. :)

--- End quote ---


Wow a simple screw is enough for the job and get that clean a result ?!  :o

That's great !   :D

No need for a bulky expensive press than... hmm .... how appealing....

--- End quote ---
Yep, but sometimes the waste material can be a real pain to remove from the shell part of the punch  >:D

Specmaster:

--- Quote from: mnementh on July 03, 2022, 03:49:35 pm ---
--- Quote from: bd139 on July 03, 2022, 11:12:35 am ---
--- Quote from: tautech on July 03, 2022, 11:08:35 am ---
--- Quote from: bd139 on July 03, 2022, 11:06:40 am ---Depends how many posts people deleted  :-DD

Revisionist bastards!  :-DD

--- End quote ---
Oh right, and you haven't played that game...... how's your halo hanging these days ?  :-DD

--- End quote ---

Oh I buried that halo 40 years ago  :-DD
--- End quote ---



mnem
What... is it crooked again...?

--- End quote ---
Its his secret signal to all the available redheads that he is on the prowl again  :-DD :-DD

mnementh:

--- Quote from: Cubdriver on July 04, 2022, 08:48:36 am ---New video with all digits operational:


-Pat

--- End quote ---
Oooooooh...   shi-i-i-iny-y-y-y-y...

That was yummy to watch over my morning cuppa - Thanks Pat!  :clap:

mnem

mnementh:

--- Quote from: tautech on July 04, 2022, 10:43:36 am ---
--- Quote from: Vince on July 04, 2022, 10:07:29 am ---
--- Quote from: Robert763 on July 04, 2022, 07:44:05 am ---
--- Quote from: Cerebus on July 03, 2022, 10:49:14 pm ---
--- Quote from: Vince on July 03, 2022, 04:46:45 pm ---Now I think or it, one big advantage of punches is that you can make any shape you want, not just round holes... so it opens up an entire new world of possibilities  8)
You could make a hole with a flat, to fit pots and keep them from spinning round and round, or anything... as long as someone somewhere sells the shape that you want...

--- End quote ---

They used to be quite common - you could get punches for the classic potentiometer with flat, D connectors, IEC inlets, and so on. Last time I bought some sheet metal punches the ones for anything other than purely round and rectangular holes seemed to have disappeared off the lists of the moderately priced manufacturers and I didn't look at the extortionately priced ones.

--- End quote ---

Made obsolete in industry by laser cutting and CNC routing.
I've bought a 2mm laser cut panel with D shaped holes for less than a blank panel by the equipment case OEM

--- End quote ---

Ah yeah, laser cutting... but I hope prices have come down at least, at least an order of magnitude for x1 quantities / prototype since I last looked 15 years ago, where some German company wanted 100 Euros for a small piece of sheet aluminium with a square cut in it for an LCD, and a couple holes for knobs, forthe project I was working on... and they dared bragging about how "affordable" they were, at that !  :wtf:

--- End quote ---
For the life of me I couldn't imagine chassis punches were obsolete so fished out an old Farnell catalogue and there they were under Hole Punches !  :horse:
Take your pick:
https://nz.element14.com/c/tools-production-supplies/tools-hand-workholding/punch-tools/prl/results/2?st=hole%20punch
https://nz.rs-online.com/web/c/hand-tools/measuring-marking/punch-die-kits/?pn=1&searchTerm=Hole+punch

Nobody said they were cheap.  ::)
--- End quote ---
Yeah, I think those were "the extortionately priced ones" C was talkin' aboot. ;)

Jeezballs... Especially compared to the prices on that AliEx store.   

Even if you only get one hole per punch, still money ahead with the Chinesium ones.


mnem
 :-/O

nixiefreqq:
y'all got me playing with my 54622d ..... and damn it.   those squishy switches under the crt were back to being a pain in ass.

had to really mash them to get any action.  had done the carbon button cleaning with a q tip and IPA about 2 months ago and they were better.  but it did not last.

a guy on utube had success with making little aluminium tape covers for his carbon buttons.  tried his method , but it did not work for me.  despite many attempts could not get the tape to stick to the buttons.

finally tried larger rectangles of AL tape and it so far is 100% good.

my advice:

do not mess with removing the squishy rubber switch strip.  it is hard to get back into place normally, and impossible without knocking off your new AL button covers.

just use tweezers to place the AL tape rectangles over the buttons and press flat with a paper towel and your finger.  size the rectangles so that they will be captured in the cavity when the narrow piece of circuit board is back in place.

was worried that the pieces of tape would deform or move and short to the contacts on the board......but it did not happen.  just a light touch now and the switches all work.

time will tell if this fix lasts, but for now i am calling it done.



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