Questions tagged [drill]

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24 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 ...
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1answer
39 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 ...
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1answer
58 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 ...
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2answers
5k views

How many amps does a 18v cordless drill draw?

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 ...
3
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1answer
523 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 ...
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1answer
66 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
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6answers
1k 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
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2answers
581 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
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2answers
649 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....
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1answer
49 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, ...
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1answer
1k 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 ...
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2answers
306 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 ...
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0answers
147 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 ...
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1answer
352 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
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0answers
283 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 ...
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1answer
483 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 ...
4
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3answers
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 ...
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2answers
191 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
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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 ...