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JCDammeyer's 42 projects

One thing I will miss is her supervisor abilities. To make sure IKEA stuff goes together correctly.

Supervisor.jpg
 
I got an AliExpress delivery today. I had thought about making these myself but at $3.53 each (3 units included shipping) I couldn't resist and I wasn't in a big hurry.
1713744414206.webp


What for? Well many years ago I bought two LED Tech Pro TP-128 floodlamps for camera and video work. But they were designed to mount onto the hot-shoe of the camera. Not a tripod. I did have one of these but the one side snapped and although it's now glued back with super glue who knows how long it would work. And I had only one.

1713744709940.webp


Now with the new ones I can mount two LED lamps on the two cheap Vivitar tripods bought specifically for them. They run on six 1.5V AA batteries and I have 12 rechargable ones I can use from Misha's stuff. Also they take a 9V adapter so that's also an option.


1713744782516.webp
 
Very clever!
Thanks. Here's the pdf of the drawing. This was all done on April 6th and I really thought I'd end up making them but once I found them on AliExpress I realized I had enough projects on the go. Especially since my knurling, even in aluminum isn't the prettiest.

I've attached an Alibre Package file. I think Alibre ATOM can open that.
 

Attachments

I finally got the water separate mounted on the compressor frame this evening. Had to do something other than soldering connectors and tiny parts.

Electronics oriented posting now...

How tiny you might ask... (seeing an opportunity for a picture or two here).
The middle resistor (68.1K 1%, 0805 size) is going to have a capacitor installed on it.
BeforeVRefCap.jpg


Here's the cap.
VRefCapacitor.jpg


And to give an idea of how tiny it is.
CapacitorSize.jpg


The hard part is that it's originally soldered with lead free which is crap to work with manually. Doesn't flow nice. Always looks pitted. So I'm using leaded solder to put it on and with flux eventually if flows. But if it's overheated so the other end melts it then decides to wander or flip up (tombstone).

Such a pain. All because the voltage reference was discontinued and the substitute needs a capacitor on the output.
 
I know from my own experience that there is something deeply wrong, almost on a cellular level, when a parent outlives their child. It can never be made better.
I'm sorry.
Charge the bastards with murder and attempted murder.
 
I finally got the water separate mounted on the compressor frame this evening. Had to do something other than soldering connectors and tiny parts.

Electronics oriented posting now...

How tiny you might ask... (seeing an opportunity for a picture or two here).
The middle resistor (68.1K 1%, 0805 size) is going to have a capacitor installed on it.
View attachment 48331

Here's the cap.
View attachment 48330

And to give an idea of how tiny it is.
View attachment 48329

The hard part is that it's originally soldered with lead free which is crap to work with manually. Doesn't flow nice. Always looks pitted. So I'm using leaded solder to put it on and with flux eventually if flows. But if it's overheated so the other end melts it then decides to wander or flip up (tombstone).

Such a pain. All because the voltage reference was discontinued and the substitute needs a capacitor on the output.
I have seen a blacksmiths tool with various names, including Stork and Third Hand, that was a basic tripod with two longer legs, and the third shorter, and pointed so as to use it to hold a small part in position. Sometimes a weight was added at the joint.

Seems to me a smaller version, say a couple pieces of copper wire and a sewing needle, would work a treat for holding down the components for soldering, without the worry of the surface tension flipping up your parts, no?
 
I have seen a blacksmiths tool with various names, including Stork and Third Hand, that was a basic tripod with two longer legs, and the third shorter, and pointed so as to use it to hold a small part in position. Sometimes a weight was added at the joint.

Seems to me a smaller version, say a couple pieces of copper wire and a sewing needle, would work a treat for holding down the components for soldering, without the worry of the surface tension flipping up your parts, no?
Take longer to set up than it does using tweezers. There's a real technique to it. It's the crappy lead free solder that is the issue. Just doesn't reflow well.
 
A friend of mine was manufacturing boards with 0402 resistors, and noted that there was a 0302 capacitor now available (!!)
 
And don't breathe too hard if you have one on the bench. Ask me how I know!

[update: this was for 0603's)
 
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And don't breathe too hard if you have one on the bench. Ask me how I know!

[update: this was for 0603's)
Ha ha. Yes they are small. I use the 0 Ohm ones as jumpers to select options. Tis a bit of a challenge. Haven't needed to design with 0402's
 
A friend of mine was manufacturing boards with 0402 resistors, and noted that there was a 0302 capacitor now available (!!)
I've hand-assembled boards with 0402 parts. I couldn't even pick up the 0201 - I couldn't hold my best tweezers steady and softly enough.
IMG_0469_1024.jpg


Attiny84a microcontroller, adxl362 accelerometer, and a hall effect sensor at the south end, a discrete component vhf transmitter at the north end, in this shot replaced with an 0402 LED circuit for debugging more conveniently. The bypass capacitors next to the power leads on the chips are just barely visible, a the small bundle of resistors and LEDs. Yeah, my macro photography skills are non-existent.
 
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