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Questions tagged [tools]

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2 answers
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Tools to measure amperage load on a curcuit in a finished setting [closed]

I work in disaster mitigation and when we enter a commercial building making sure we don't overload a circuit is very important to efficient equipment placement. I need a way to check finished outlets ...
Sunspear25's user avatar
0 votes
0 answers
62 views

CAN protocol how to make use of candump utility

Can anyone help me out how to use -r parameter in the candump utility? -r (set socket receive buffer to size) Wanted to verify: Configurable receive buffer feature. I verified the above as follows: ...
Sukanya U's user avatar
4 votes
4 answers
2k views

How do I cut a trace?

I've often had the need to cut a trace here and there to debug something or fix a bad layout. I've not really come up on a way to do so that's Safe Controllable Reliable (won't magically reconnect if ...
Nick T's user avatar
  • 12.5k
10 votes
3 answers
3k views

What is the name of the oscilloscope-like software shown in this screenshot?

I'm trying to figure out what this tool is, to use it as an oscilloscope. I found it here.
kovac's user avatar
  • 475
0 votes
4 answers
287 views

Soldering tip is made of copper enclosed in other metals

Why is a soldering tip made of copper enclosed in other metals? Why is it not just simply solid copper?
Nonok cantik's user avatar
10 votes
1 answer
1k views

What is this soldering tweezer like tool called?

I long ago used a tool in a workshop which looks very like a metal tweezer but unlike a tweezer its holder arms are normally tightly closed and opens when one pushes it. So it was used to hold lets ...
ty_1917's user avatar
  • 1,016
0 votes
1 answer
85 views

Megger manual warning clarification

When a manual of a Megger warns: The measurement time must not exceed 10 seconds if the measured resistance is less than 1.5 MΩ at 500 VDC position or less than 5 MΩ at 1000 VDC position" The ...
Dan's user avatar
  • 75
17 votes
4 answers
7k views

Why do cordless tool batteries have a circuit board connected?

The other day I got tired of buying replacement 18 V battery packs for my power tools (drill, ripsaw, etc.) and I thought to myself, surely by this day and age the price of lithium-ion batteries can't ...
Alfred's user avatar
  • 189
4 votes
6 answers
10k views

Best trick to strip wire in the middle (to connect elements in the middle)

I have a simple 22 AWG wire that needs to connect to multiple elements. Every connection is a solder joint. I would rather not cut up small wires, as it's for a batch run. Normally I'd love to use ...
lode's user avatar
  • 369
0 votes
0 answers
74 views

What is this tool called? Variable frequency drive + function generator=?

For a while (probably since I found out that switch mode power supply transformers run at different frequenciess, much higher than mains) I've wanted a device that can produce different frequencies, ...
lil matt19's user avatar
0 votes
3 answers
82 views

What is the real and apparent power of these steel cutters?

The US market model of this steel cutter is 120 VAC, 13.0 Amp. The NZ market model is 230 VAC, 1,100 W. I am trying to wrap my head around whether 1,100 W is the real power and so whether the apparent ...
Greendrake's user avatar
0 votes
3 answers
214 views

What parts in the hot air gun may be damaged while blowing air, intermittently, into closed carton-box? [closed]

I saw (around the web) that many peoples are using their hot air gun to blow hot air into a carton-box (300°C position) and turns the carton-box to a kind of oven, in order to cured painted object etc....
Dan's user avatar
  • 75
2 votes
2 answers
1k views

BNC and SMA cable testing

Are there tools for checking (or that could be adapted to check) if BNC or SMA coaxial cables are in spec for things like proper shielding, impedance (across their bandwidth), etc.? I've found lots of ...
argentum2f's user avatar
3 votes
1 answer
213 views

Which crimp terminal is crimped correctly?

I've loaded the crimp terminal two different ways in my crimper, but I haven't the experience to say which is correct. Cursory web research doesn't seem to answer the question. Edit: this is the first ...
Mathieu K.'s user avatar
0 votes
0 answers
72 views

Get port signal mapping Excel file from PDF schematic

I would like to know on an open source tool which exists to get port signal mapping Excel file from PDF schematic. It will be super useful to me, as the current design has a high pin count FPGA, and ...
abunickabhi's user avatar
4 votes
3 answers
2k views

What tool is used to crimp DIP connectors onto ribbon cable?

I have to attach some 14-pin DIP headers (looks like these) to a 14-connector ribbon cable. I have the headers and the cable, but realize I don't know how to crimp them on correctly. I'm sure there's ...
BZo's user avatar
  • 2,131
0 votes
1 answer
95 views

how can I figure out if 1-3V is flowing from something using household items?

Basically what the (unconventional) question says! I don't have a voltmeter at home. How can I fashion one, or use some kind of test to determine if current is flowing? I know it's a relatively low ...
qmstatmech's user avatar
0 votes
1 answer
1k views

D-punch/die set for SMA panel cut-out [closed]

I'm looking for a D-punch/die set for SMA bulkhead cut-outs into 1mm thick plastic. Coax connector manufacturers don't seem to offer such tools (even though there are many manufacturers offering such ...
citizen's user avatar
  • 2,656
0 votes
2 answers
1k views

Is it possible to run a 3ph 220/440V motor on a standard 120/240V home circuit? [closed]

I have only basic knowledge in electronics and am looking for advice. I have the opportunity to get a really good deal on a Band Saw, a Jet J8203K. A manual for this saw can be found here http://...
Zero's user avatar
  • 1
0 votes
0 answers
29 views

How shoud I create an adaptive neuro fuzzy inference system (ANFIS) in MATLAB when I have a lot of inputs?

In a fuzzy inference system, when the number of inputs increases, they usually either reduce the rules or, in order not to make mistakes, write the ruless between several nested systems, right? For ...
rezamsk943's user avatar
8 votes
2 answers
1k views

Help identify this tool

I found this tool in a toolkit which I had lying around. I am not sure what this is as I didn't purchase this kit. The kit, in addition, had a ratchet screwdriver, bits and some tweezers and a ...
user2956979's user avatar
-1 votes
1 answer
235 views

What is the intended use of this electrician's screwdriver? [closed]

I have this screwdriver with a "special" tip: It happens to be a Klein 732 (the tip style is also conveniently marked on the handle): Problem is, I've never found a screw that this will ...
StayOnTarget's user avatar
  • 1,236
2 votes
1 answer
136 views

Can I rely on a the simulation of an op-amp based differential amplifier without looking at my op-amps common mode signal

Can I rely on what a simulator gives me for the output of an op-amp based differential amplifier without verifying that the common mode input to my op-amp is between the voltages of my op amp's power ...
Math Keeps Me Busy's user avatar
0 votes
2 answers
80 views

What is the cause of this drastically different simulation behavior with slight variation in capacitor values?

This site uses Circuit Lab's schematic and simulation tool, for which I am grateful. Recently, I was attempting to modify a circuit present in this answer to a question. simulate this circuit – ...
Math Keeps Me Busy's user avatar
0 votes
0 answers
182 views

What is the name/type of this soldering iron tip?

I have a soldering iron station called Dibotech soldering station 60W which is a temperature controlled soldering station. You can set the temperature of the tip between 50-480 degrees Celsius. The ...
Oscar Creator's user avatar
1 vote
1 answer
109 views

How could a dental lab micromotor start at high current and torque without damaging anything?

If you are familiar with dental micromotors, there are generally two kinds of them in foot pedals: simple switch or variable speed (like throttle.) The simple one acts like a push button to be ...
UnoBianconero's user avatar
0 votes
1 answer
154 views

What's the best tool to close a circuit on purpose

I have a PCB with some cheap SM switches (the ones with discs kept in place with adhesive tape or something like that). I am using a screwdriver which is not reliable and I was thinking of something ...
Paperino's user avatar
  • 215
1 vote
1 answer
440 views

Best tool bits for PCB cut outs (board shapes and slots) when prototyping with desktop CNC milling machine?

I have a cheap desktop CNC that I have successfully done some PCB prototypes on using 10 and 30 degree 0.1mm V-bits. When it comes time to doing the cut-outs I started with a 1.5 mm end mill with four ...
norlesh's user avatar
  • 483
0 votes
3 answers
176 views

Is there anything like spring steel hold-down probes to help with SMT assembly?

I occasionally do minor SMT assembly and re-work. I know the standard practice for holding parts is to glue them, but sometimes I'd like to have a more temporary approach. For example, sometimes I ...
tim11g's user avatar
  • 113
-5 votes
2 answers
111 views

Can somebody list all the tools in this photo [closed]

Can somebody list all the tools on this image? I'm building my lab and I ill need a list of must-have electronic instruments. My goal is to 3d print parts and builds drones. Drone recharging stations ...
user1685367's user avatar
0 votes
1 answer
112 views

Measuring very dim light-- charged glow in the dark paint [closed]

I am not even a novice, but was directed here by several companies when they couldn't help me with finding a tool. I am setting up an experiment to determine which glow pigments are brightest. Full ...
ElementalBreakdown's user avatar
0 votes
2 answers
206 views

Why this Plier is advertised with conductive handle? [duplicate]

See the product here. Ok, I cannot think why I would want the handle to be conductive. What is the deal?
muyustan's user avatar
  • 2,106
0 votes
0 answers
51 views

Did anybody ever measure the watt use (startup, idle/low/intense use, stalling) of a 18 V power tool?

I am curious about the actual power in watt a 18 V power tool like an angle grinder or router actually use over time (Makita, DeWalt, Bosch, etc.). I have seen people running such tools not with a ...
Shoe Off Head's user avatar
0 votes
1 answer
225 views

How did I break this desoldering pump?

I have this 30W desoldering tool from Velleman which I've used a few times without any issues... until I decided I wanted a finer nozzle. I turned it on after replacing the tip , and the base just ...
Fox Cunning's user avatar
3 votes
1 answer
1k views

Limit KiCAD track selection to current layer

When I do the track selection in KiCAD and click Select -> Connected Tracks it also selects tracks connected through vias on the back of the board. I only want ...
Brendan's user avatar
  • 247
0 votes
0 answers
108 views

Preferred resistor (E series) value optimiser

Is there a tool to find the closest optimum preferred resistor values given a list of constraints? For example I'm designing a filter but only have a few odd resistor and capacitor values to choose ...
Alessi 42's user avatar
1 vote
2 answers
1k views

Controlling heat gun's element: where to put SSR without disturbing motor

I'm working on a pet project of mine, creating a coffee roaster, where I'm using a heat gun as the heat source. To improve my control of the heat output of the gun, I've set up an Arduino to control a ...
Hallgeir's user avatar
  • 113
1 vote
1 answer
2k views

Electro Pounce Alternative ideas [closed]

I'm a sign writer and often need to transfer patterns / designs to paper in a perforated way. Small holes in the outline of the design allow chalk or charcoal to be applied through the paper to the ...
Joe's user avatar
  • 111
0 votes
1 answer
37 views

Specs for an AC Power Bank as an Outlet Replacement

I've been seeing cheaper and cheaper power banks on Amazon, and have even started to see them in hardware stores. My impression is that most people will use them to tailgate or to power batter pack ...
QueueHammer's user avatar
12 votes
1 answer
1k views

Identify these wide ended tweezers

Working in an electronics lab, we do micro soldering and I came across the tool pictured. No Idea what it's is for. I'm guessing its some tool for holding or removing chips as you rework a PCB. I don'...
Jack's user avatar
  • 460
5 votes
4 answers
2k views

Why do LCR meter manufacturers give the details of measurement frequency to us?

When you want to purchase a DMM, more probably you don't see at what frequency the DMM you considered would work, but in the situation you're considering to purchase an LCR meter, manufacturers give ...
Roh's user avatar
  • 4,650
2 votes
1 answer
231 views

Ground plane: is there a tool to identify choke points of a fragmented copper polygon in Eagle?

As they say a picture says a thousand words. Consider this extreme example: You have this copper polygon (a ground plane), but due to other signals routed on the same layer, the polygon comes to a ...
anrieff's user avatar
  • 5,469
0 votes
1 answer
1k views

Is this soldering iron and power supply combo grounded and if so, how?

I'm interested in a TS100 soldering iron as a decent starter iron and a light one that doesn't take up too much space. It doesn't come with a power supply though, presumably to keep it flexible as it ...
cr0's user avatar
  • 167
2 votes
2 answers
5k views

Power tool safety: Grounding v/s Double insulation

OSHA regulation 29 CFR 1926.404(f)(7)(iv) states that electric power tools must be grounded except when they are double insulated. I quote from the Black & Decker rotary drill manual: "Do not use ...
Frost's user avatar
  • 105
0 votes
1 answer
95 views

What physical tool to use to quickly dump firmware?

Recently, I managed to take a dump of the firmware and write a modified one using the pins that I marked with red by soldering 4 thin wires to those points. Now, I needed to perform this more than 50 ...
ybaylav's user avatar
2 votes
1 answer
3k views

Coplanar Waveguide Calculations PCBS, AppCAD v.s. Online calculators

So lately I noticed that the Coplanar Waveguid calculations of AppCAD (http://www.hp.woodshot.com/) did not give the same result as the online calculators do. https://chemandy.com/calculators/...
Nelizzsan's user avatar
6 votes
2 answers
1k views

Multimeter true RMS [closed]

I'm just getting started with electronics (arduinos and friends) and I would like to get a multimeter. As far as I can tell arduinos and any other logic chips and circuits I'm gonna be using are using ...
adrianton3's user avatar
0 votes
4 answers
262 views

Does this appliance break UK safety laws?

Good evening. I recently purchased this active suction SMD pick-up tool from AliExpress: When it arrived, it seemed to work fine. However, when I opened it up (to investigate the feasibility of ...
Sod Almighty's user avatar
  • 1,465
0 votes
0 answers
557 views

Fast but affordable way to crimp dupont connectors

I'm currently doing a small production run of a board I designed. It features a few pin header type dupont connectors which are used to attach cables to the board. Now, I can surely crimp this using ...
DELTA12's user avatar
  • 868
0 votes
1 answer
182 views

Line splitter for 230VAC in the UK? [closed]

In the U.S. where I am from, my company's field techs are required to measure AC wall current of our products frequently. To to this, they either make their own harness with a Hot (Line) wire to clamp ...
Fuffer's user avatar
  • 302