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Topic starter
2025-01-31 2:40 pm
Sparkfun just announced a neat tool but although it is 3D printed are not sharing the 'source code' but only selling the finished product for $ 3.95 USD. The shipping would make it a LOT more here in Canada.
I do not have the skills to recreate this, but maybe one of our members does. Take your best shot and post the stl file back here when you have it ready.
First computer 1959. Retired from my own computer company 2004.
Hardware - Expert in 1401, 360, fairly knowledge in PC plus numerous MPU's & MCU's
Major Languages - Machine language, 360 Macro Assembler, Intel Assembler, PL/I and PL1, Pascal, Basic, C plus numerous job control and scripting languages.
My personal scorecard is now 1 PC hardware fix (circa 1982), 1 open source fix (at age 82), and 2 zero day bugs in a major OS.
2025-01-31 4:25 pm
These are pliers, right?
What is the name of the connector? it's a type, I think. Also, don't they come different sizes, 2 wire, 4 wire, stacked, etc.
The one who has the most fun, wins!
2025-01-31 6:44 pm
Addendum:
They're JST connectors.
I'm working on rebuilding my poor electronics vocabulary.
The one who has the most fun, wins!
Topic starter
2025-01-31 7:08 pm
@tfmccarthy JST the pliers are for the LiPo bag batteries common on many small devices, I probably have 4 or 5.
First computer 1959. Retired from my own computer company 2004.
Hardware - Expert in 1401, 360, fairly knowledge in PC plus numerous MPU's & MCU's
Major Languages - Machine language, 360 Macro Assembler, Intel Assembler, PL/I and PL1, Pascal, Basic, C plus numerous job control and scripting languages.
My personal scorecard is now 1 PC hardware fix (circa 1982), 1 open source fix (at age 82), and 2 zero day bugs in a major OS.
Topic starter
2025-01-31 7:21 pm
@tfmccarthy Here is the original https://www.sparkfun.com/sparkfun-jst-battery-removal-tool.html
First computer 1959. Retired from my own computer company 2004.
Hardware - Expert in 1401, 360, fairly knowledge in PC plus numerous MPU's & MCU's
Major Languages - Machine language, 360 Macro Assembler, Intel Assembler, PL/I and PL1, Pascal, Basic, C plus numerous job control and scripting languages.
My personal scorecard is now 1 PC hardware fix (circa 1982), 1 open source fix (at age 82), and 2 zero day bugs in a major OS.
Topic starter
2025-01-31 7:25 pm
@tfmccarthy Here is another solution and it would be easy to make these for each size of plug https://www.tindie.com/products/kdcircuits/5pcs-plug-puller-jst-ph-20mm-2pin/
First computer 1959. Retired from my own computer company 2004.
Hardware - Expert in 1401, 360, fairly knowledge in PC plus numerous MPU's & MCU's
Major Languages - Machine language, 360 Macro Assembler, Intel Assembler, PL/I and PL1, Pascal, Basic, C plus numerous job control and scripting languages.
My personal scorecard is now 1 PC hardware fix (circa 1982), 1 open source fix (at age 82), and 2 zero day bugs in a major OS.
2025-02-06 8:04 pm
I do not have the skills to recreate this, but maybe one of our members does. Take your best shot and post the stl file back here when you have it ready.
Maybe this will do the job although it works in a different manner. The zip file contains an OpenSCAD script with parameters to allow custom-making a sort of tweezer-like device to grip the JST connector top lip allowing it to be inserted or extracted from a PCB. This script allows the user to specify leg length, width, height and the gap between legs (to allow for the wires in the JST connector).
Print two of them, turn one over and join them with an M3 bolt and nut to form 'tweezers'.
Two STL files are included in addition to the script (all measurements in mm)
a) leg length, leg width 8, leg thickness 8, gap 6
b) leg length, leg width 10, leg thickness 6, gap 6
Hope this helps
Anything seems possible when you don't know what you're talking about.
Topic starter
2025-02-06 9:16 pm
@will This one is a lot better I think in terms of getting into tight spaces especially if the arms are tapered.
First computer 1959. Retired from my own computer company 2004.
Hardware - Expert in 1401, 360, fairly knowledge in PC plus numerous MPU's & MCU's
Major Languages - Machine language, 360 Macro Assembler, Intel Assembler, PL/I and PL1, Pascal, Basic, C plus numerous job control and scripting languages.
My personal scorecard is now 1 PC hardware fix (circa 1982), 1 open source fix (at age 82), and 2 zero day bugs in a major OS.
2025-08-25 8:05 pm
@ramblinggeek those tweezers will be a worthwhile addition to my toolbox, I will be printing one out in readiness for the next time I have to pull a jst plug out 👍
RamblingGeek reacted
2025-10-13 11:54 pm
Adafruit also has a version. Here is the link.
https://cdn-shop.adafruit.com/product-files/6391/JST_Puller.3mf
2025-10-18 12:46 am
Adafruit JST PH Remover / Puller for LiPoly / LiIon Batteries
Product ID: 6391
$1.95
https://www.adafruit.com/product/6391
David, WA9ONY
2026-01-06 5:06 pm
Even if somebody replicates it, I think some mismatches will be always there.
2026-03-23 1:22 am
@aliarifat Also….it has been my experience when buying online stuff (LiPo s, etc) that they have the polarity backwards and this can be a real problem for obvious reasons….always check for proper polarity on anything but particularly with these JST connectors…..