Questions tagged [drill]
The drill tag has no usage guidance.
21
questions
0
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0answers
50 views
Power drill motor with no electronics? [duplicate]
I have a Bosch power drill, the same as in this other question.
I checked it carefully and it doesn't seem to have a capacitor or any other electronic components.
Does it mean the universal motor ...
0
votes
2answers
58 views
drilling SMT footprints for fitting THT parts
I have bought by mistake some THT caps instead of SMD and would like to use them still. They were bought from a supplier who has the bad habit of not answering customer requests. These are 5000h caps, ...
0
votes
1answer
354 views
Excellon NC drill files from Altium
How to generate an Excellon NC drill file from Altium, as my PCB manufacturer does not require a cam file. The NC drill file generated from Altium is a .CAM file, whereas, my PCB manufacturer requires ...
0
votes
1answer
88 views
Is it a routed slot the same than creepage concept and how to calculate slot width?
I was reading a high voltage pcb design guide and it talks about insulators insertions, routed slots, gradient rings, etc.. but it doesn't talk about creepage. As the creepage could be achieved by ...
0
votes
1answer
184 views
Converting a 9.6V NiCad Drill to Li-on [closed]
I am trying to convert my 9.6V NiCad drill to run off a 12V Li-on battery. When I connect the Li-On directly, the motor only just slightly spins and stops. The only way I can get it to work is using a ...
2
votes
2answers
11k views
How many amps does a 18v cordless drill draw? [closed]
I have bought an old 18v black and decker cordless drill but with broken batteries, for that, I want to buy a boost converter to convert 12v (max 20A ) from a computer power supply to 18v and use this ...
4
votes
1answer
861 views
Hole Drill Sizes >1mm in Eagle?
I am currently trying to build a package for a through hole potentiometer in Eagle Cad and I wanted to incorporate holes in my PCB for the metal tabs on the side of the pot. I determined that these ...
-1
votes
1answer
67 views
Small wind generator project
Why when I spin a dc motor (USED AS A GENERATOR )with drill it does not light up led , but when I spin it with my fingers it light up
0
votes
6answers
2k views
EAGLE Square hole
I want to make a square hole in the middle of my PCB, but when I choose to make a drill or hole is only a circle! Isn't there a option or a ULP file that allow me to do a square hole? I can't find ...
1
vote
2answers
728 views
How do you find buried vias in Altium Designer?
I am working on a complex 8-layer PCB to which I have made a number of changes and improvements.
I now want to sent the board out for production and want to check for any unnecessary cost. One of the ...
0
votes
2answers
845 views
converted cordless drill to corded drill - only works once
I have read several articles about converting cordless drill into corded drill.
I have an old Craftsman 10.8V NiCd battery. It comes with 2 batteries. One is completely dead and the other is 90% dead....
0
votes
1answer
50 views
Ni-Mh batteries, low capacity better performance?
When we take appart cordless things like drills, vacuum cleaners, telephones..., they often use small capacity (like 700 mAh) Ni-Mh cells. I've always thought that it was because of cost reduction, ...
0
votes
1answer
2k views
delete drill layer in eagle without redoing board
When I go to make my own circuit boards with eagle, after saving, I run the drill-aid.ulp script so eagle can convert all over-sized drill holes to small size. It helps me with drilling. I then saved ...
0
votes
2answers
361 views
drilling pin header holes when exact drill size not locally available
I checked all of the hardware stores in my area and I can buy 1/32 (~ 0.79mm) and 3/64 inch (~ 1.2mm) drill bits. No source in my area carries bits which are between those two sizes which would then ...
2
votes
0answers
198 views
Powering 10.8V DeWalt cordless drill from mains
There was a couple of questions on how to power a cordless drill, but they are all about power supplies.
I've got a DeWalt 10.8V cordless drill and its battery connects through 4 pins instead of 2 or ...
0
votes
1answer
426 views
Powering a 14.4V motor - RS550
I took this motor from a cordless drill and I would like to power up directly from a power supply and not from the battery. The datasheet says the stall current draw is 70/85 Amps (I'm not sure wich ...
2
votes
0answers
358 views
Multi-layer board drill pair recommendations to reduce PCB cost
I'm designing a simple 6 layer board with following as core components.
http://www.ti.com/lit/ds/symlink/tm4c123gh6pm.pdf
http://www.ti.com/lit/ds/symlink/afe4403.pdf
I using this stackup
Now I'm ...
0
votes
1answer
517 views
Shrinking drill hole size in Eagle
The last time I did a successful PCB, the drill hole size relative to the component pad size is rather huge to the point where when I entered the soldering stage, the component wires were not ...
5
votes
4answers
5k views
Altium PCB Layout: The Difference of Through Via, Micro Via, and Burried Via
This is my very first time doing 4 layers PCB layout.
What is actually the difference between Micro Via and Buried Via?
Say I have Layer 1, Layer 2, Layer 3, Layer 4. What I know I use the Through ...
1
vote
2answers
203 views
How do you drill a homemade double sided pcb
I have a PCB that I am prototyping at home and it is double sided.... When I drill on one face the other face peels up a little.
Does any one know how to avoid this problem?
2
votes
1answer
4k views
What kind of motor to use in a PCB drill?
I'm trying to use this super-cheap PCB drill that I bought recently, but it's too weak for human convenience (takes about 10 seconds to get through standard 1.6mm FR4).
The drill uses a small DC ...
