Joseph Chiu
@toybuilder.bsky.social
Hardware / Product Developer. Altium/Alibre. Southern California.
Bought microSD cards recovered from returned security cameras, 50 cents a piece. (For Raspberry Pi, Jetson, 3D printers, etc.)
1 defective card. Of the remaining 19, 5 of them had videos on them from people's homes.
Always do at least a quick wipe of your data before disposing your electronics!
1 defective card. Of the remaining 19, 5 of them had videos on them from people's homes.
Always do at least a quick wipe of your data before disposing your electronics!
February 25, 2025 at 9:19 PM
Bought microSD cards recovered from returned security cameras, 50 cents a piece. (For Raspberry Pi, Jetson, 3D printers, etc.)
1 defective card. Of the remaining 19, 5 of them had videos on them from people's homes.
Always do at least a quick wipe of your data before disposing your electronics!
1 defective card. Of the remaining 19, 5 of them had videos on them from people's homes.
Always do at least a quick wipe of your data before disposing your electronics!
@arturo182.bsky.social designed a 3d-printed breakaway header tool which I've been using for years. I wanted to make a new design inspired by his original work. www.thingiverse.com/thing:6948716
February 14, 2025 at 2:56 AM
@arturo182.bsky.social designed a 3d-printed breakaway header tool which I've been using for years. I wanted to make a new design inspired by his original work. www.thingiverse.com/thing:6948716
You can wet newsprint with oil or water and cling that on to surfaces for bigger areas. The text provides better tracking and alignment. If you have some washable paint, painting patterns on it can work too.
January 25, 2025 at 5:11 PM
You can wet newsprint with oil or water and cling that on to surfaces for bigger areas. The text provides better tracking and alignment. If you have some washable paint, painting patterns on it can work too.
This isn't reprorubber, but with a bit of hot water, this orange polymer (because cheese IS a polymer) let me measured the gap distance when the insert's placement is relaxed into the final position...
January 23, 2025 at 9:44 PM
This isn't reprorubber, but with a bit of hot water, this orange polymer (because cheese IS a polymer) let me measured the gap distance when the insert's placement is relaxed into the final position...
Figured out how to model the internal available volume of a Pelican 1040 case. Pelican provides STEP data, but it requires a bit of additional massaging of the data and additional steps to make the slab. Test-fit print felt good. Sacrificed a slice of American cheese to measure how good the fit is.
January 23, 2025 at 9:44 PM
Figured out how to model the internal available volume of a Pelican 1040 case. Pelican provides STEP data, but it requires a bit of additional massaging of the data and additional steps to make the slab. Test-fit print felt good. Sacrificed a slice of American cheese to measure how good the fit is.
3D scanned my USB Mini-B based thermal camera attached to my phone via a fiddly USB C adapter. Made a 3D printed case for the camera+adapter so my phone can solidly dock to it.
January 21, 2025 at 6:30 PM
3D scanned my USB Mini-B based thermal camera attached to my phone via a fiddly USB C adapter. Made a 3D printed case for the camera+adapter so my phone can solidly dock to it.
Calfire GIS database with 3D view shows burn area (orange), evacuation ordered (red) and warning (yellow-green). calfire-forestry.maps.arcgis.com/home/webscen...
January 9, 2025 at 5:30 AM
Calfire GIS database with 3D view shows burn area (orange), evacuation ordered (red) and warning (yellow-green). calfire-forestry.maps.arcgis.com/home/webscen...
They have them in factory stock. I don't trust the in distributor number though. Factory inventory tend to get double counted or triple counted by some distributors reporting factory stock as their in-stock.
January 7, 2025 at 3:24 PM
They have them in factory stock. I don't trust the in distributor number though. Factory inventory tend to get double counted or triple counted by some distributors reporting factory stock as their in-stock.
Ohhh, I miss my old daisy wheel printer...
January 7, 2025 at 12:12 AM
Ohhh, I miss my old daisy wheel printer...
I love my COW. I don't use it every day, but it's nice to be able to slide it over to where I need it.
January 3, 2025 at 7:04 PM
I love my COW. I don't use it every day, but it's nice to be able to slide it over to where I need it.
PCB Milling on @bantamtools.bsky.social #Othermill. FR1 using 7.1 mil V-carve and 1/32" square end mill. Turned out really nice. No cleanup needed. Used it to connect a 0.5mm pitch FPC to a devboard.
December 27, 2024 at 9:13 PM
PCB Milling on @bantamtools.bsky.social #Othermill. FR1 using 7.1 mil V-carve and 1/32" square end mill. Turned out really nice. No cleanup needed. Used it to connect a 0.5mm pitch FPC to a devboard.
Be careful of the silk-to-silk gap. If too thin, the strokes can possibly smear here depending on how it's imaged/printed.
December 20, 2024 at 8:32 PM
Be careful of the silk-to-silk gap. If too thin, the strokes can possibly smear here depending on how it's imaged/printed.
BTW, what is the stroke width here? This might print poorly if too thin.
December 20, 2024 at 8:31 PM
BTW, what is the stroke width here? This might print poorly if too thin.
Spell out "through" and "forward"?
December 20, 2024 at 8:29 PM
Spell out "through" and "forward"?
Your curves are not concentric in this corner
December 20, 2024 at 8:29 PM
Your curves are not concentric in this corner
Make this consistent in style. Right now you have CCollector vs Base and Emitter.
December 20, 2024 at 8:29 PM
Make this consistent in style. Right now you have CCollector vs Base and Emitter.
Nit-picking: I suggest aligning the ends of the legs on the front so that they are even to the edges of the letter. Slightly increase the gap between the letter and the legs, at least the width of the stroke of the letters. Consider making legs same length from circle.
December 20, 2024 at 8:29 PM
Nit-picking: I suggest aligning the ends of the legs on the front so that they are even to the edges of the letter. Slightly increase the gap between the letter and the legs, at least the width of the stroke of the letters. Consider making legs same length from circle.
This is why I like to use Consolas in my documents.
December 20, 2024 at 8:13 PM
This is why I like to use Consolas in my documents.
I wonder if you can abuse this by sourcing and sinking current through unused IO pins so that you can source/sink more than 200mA through used IO pins...
December 17, 2024 at 6:06 AM
I wonder if you can abuse this by sourcing and sinking current through unused IO pins so that you can source/sink more than 200mA through used IO pins...
Came across this Altoids tin while cleaning my workbench. Is making things to fit it still a thing?
December 14, 2024 at 1:31 AM
Came across this Altoids tin while cleaning my workbench. Is making things to fit it still a thing?
I'm impressed by how they soldered the thermistor and heater wires to the PCB in such a small space surrounded by plastic.
December 5, 2024 at 5:44 AM
I'm impressed by how they soldered the thermistor and heater wires to the PCB in such a small space surrounded by plastic.
3D printing pen stopped working (won't heat) so I took it apart. The filament drive mechanism is pretty impressive - metal gears not plastic. Very compact. About 1/2 inch wide.
December 5, 2024 at 5:44 AM
3D printing pen stopped working (won't heat) so I took it apart. The filament drive mechanism is pretty impressive - metal gears not plastic. Very compact. About 1/2 inch wide.