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MINI drill from an old flashlight

Fixtures / Instruments
Added 27 comments

welcome all the inhabitants of our sites!
I present the option of making a mini-drill from a flashlight body and electronic components that have accumulated after parsing various, failed equipment.

The drill will have two power buttons:
- the first one turns on the engine for a short time, i.e. not fixed;
- the second, fixed, i.e. to turn off, press a second time.

I suppose that the option with two buttons will be convenient when operating a mini-drill.

For work, we need tools:
- ruler;
- screwdriver;
- nippers;
- scissors for metal;
- knife;
- hammer;
- marker;
- thermal gun;
- electrical tape;
- tweezers;
- awl;
- soldering iron;
- scissors.


The engine is taken from a broken printer, the supply voltage is 12 V, diameter ~ 28 mm.

Basis crafts serves as the body of a metal flashlight. This, for sure, is available to many.

We turn off the reflector from the flashlight, remove the power button, try on the engine - it fits perfectly.

Scissors for metal make cuts in the body (as shown in the photo), and the two opposite tabs (hereinafter referred to as mounting tabs), used later for mounting the engine, have a width of ~ 8 mm, and the remaining 5 - 6 mm.

Cut off the threaded parts from the petals. On the mounting petals, we mark the places for the holes so that when the petals are bent, the holes are opposite the thread at the end of the engine.

We puncture holes with an awl. We bend all the petals to the engine, fixing - last.

We fasten the mounting tabs to the engine with bolts.

Next, we proceed to the assembly of the electric filling according to the diagram below.

We use elements:
No. 1 - button without fixing;
No. 2 - button with fixation;
No. 3 - connector for the power plug.

We solder the wires to button No. 1 (delete the second pair of contacts).

From a piece of fiberglass board we cut out the rectangular base for button No. 1.


Using hot-melt adhesive, we fix the button on the base, then on the drill body, after driving the wires from the button inside the case.The result in the photo.

We fix the obtained construction with electrical tape. During operation, winding electrical tape will allow you to more securely hold the tool.

The next step is the completion of the standard lamp cover.

Cut holes for elements No. 2 and No. 3.


We complete the soldering of the electric filling according to the above scheme.

We place elements No. 2 and No. 3 in the lid and fill with hot-melt adhesive.

The result in the photo.

We twist the lid.

We attach a collet chuck to the motor shaft (ordered from AliExpress).

To supply voltage, a 12 V power supply is used.
The option with a plug-in power connector is convenient when operating and storing the tool.

The device in the hand lies comfortably, the button layout is ergonomic.

The tool is applicable for micro-grinding, micro-drilling and other miniature work.
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27 comments
Author 0
Reply To quote A complaint
I ordered collets. I bought drills in a regular store
+1
Reply To quote A complaint
He did the same dremel, but did not finish due to lack of collets. Drop the link from AliExpress where you ordered collets and drills.
+1
Reply To quote A complaint
I will not repeat about the electrical tape
-1
Reply To quote A complaint
guys tell me how to make an engraving machine
+3
Reply To quote A complaint
By the way, if you need to strengthen the engine, you can rewind the anchor.

I went to a circle, we had such a big road with several tracks there and we competed with someone who had a faster car. The machines themselves did. Motors were in short supply. So such a refinement greatly solved the problem. The usual three-volt after rewinding the anchor became significantly more powerful.

Eh, it was interesting, even now I would drive it)) Not like right now, stick into the monitor. You do it yourself, refine it, experience it yourself, compete)
-1
Reply To quote A complaint
If the sizes are approximately the same, then we can assume that the power is also approximately the same, there can only be differences in the ratio of power / number of revolutions per unit time.
0
Reply To quote A complaint
Well, well, in the printer I don’t know which one there, but visually very similar. Maybe they are the same there?
0
Reply To quote A complaint
Quote: Dmitrij
This is a powerful motor from a hairdryer on 12V, he will drill anything. It has brutal revolutions and torque.

But nothing that
Quote: Dmitrij
Engine taken from a broken printer
?
But of course he will drill fiberglass without problems.
-1
Reply To quote A complaint
Quote: Cyril 517
Two cheap electrical tape: blue and black. They cost 13 r, but blue has better quality

I, in fact, was not going to discuss the assortment of insulating tape of your NP.
0
Reply To quote A complaint
Quote: Ivan_Pokhmelev
Quote: Cyril 517
For the black nifig does not stick, really

It's you for nothing: the best electrical tape that I used was just black, because the quality does not depend on color, but on the technology of its manufacture.
But still, the electrical tape should be blue! ;)

Two cheap electrical tape: blue and black. They cost 13 r, but blue has better quality
+3
Reply To quote A complaint
Only BLUE! Only hardcore !!!
+3
Reply To quote A complaint
This is a powerful motor from a hairdryer on 12V, he will drill anything. It has brutal revolutions and torque.
+4
Reply To quote A complaint
Quote: Cyril 517
For the black nifig does not stick, really

It's you for nothing: the best electrical tape that I used was just black, because the quality does not depend on color, but on the technology of its manufacture.
But still, the electrical tape should be blue! ;)
0
Reply To quote A complaint
Quote: Valery
And about the electrical tape you are in vain, my friend !!! )))))) Insulating tape as fasteners is a whole era !!! ))))) .. The main thing is that she be epic BLUE !!! ))))

For the black nifig does not stick, really
+3
Reply To quote A complaint
And about the electrical tape you are in vain, my friend !!! )))))) Insulating tape as fasteners is a whole era !!! ))))) .. The main thing is that she be epic BLUE !!! ))))
0
Reply To quote A complaint
Unrealistic useless homemade. You won’t be able to drill even textolite, because not enough engine power that you used. I personally tried a bunch of such electric motors for the same purposes, as a result, 90% of them do not perform the functions that you describe in the article. I quote: "The tool is applicable for micro-grinding, micro-drilling and other miniature work." So that it is not necessary to "splurge" that it is efficient. This is complete nonsense.
And another piece of advice - never use tape as a fastener in your homemade products, to put it mildly, it is unreliable and ugly, and, roughly speaking, complete crap.
+2
Reply To quote A complaint
Yes, I also remember this ... But I'm an amateur ... I just got a little involved in school years - I collected receivers, color music on KU 202N, a squeaker on the turns of a motorcycle (why?)))) ... and other simple toys .. .
0
Reply To quote A complaint
Quote: AnPr_Aleks
- the engine inside the case partially blocks access to the standard button;
- soldering wires to the standard button inside the case is somewhat problematic;

And there is no need to solder there, it is necessary to contact with the element that supplies voltage to the central output of the bulb.
+1
Reply To quote A complaint
Quote: Valery
I drilled something that was not enough to get.
Good drills for drilling fiberglass were obtained from sewing needles: if you successfully break off the eye, then it is drilled even without additional sharpening.
+2
Reply To quote A complaint
And I at one time got out a motor with great difficulty (from some walkie-talkie ... he moved some scale there ????)))). He drilled a blind hole with a drill in the shaft (he kept the drill, and the motor spun and drilled himself)))), turned the drill over, stuck its tail into this hole and soldered it to acid .....
... And it was already the height of technology! )))) The rest manually drilled than necessary. I drilled something that was not enough to get. People were chasing dental drills and they were drilling boards. Manually, rolling between fingers ....
+2
Reply To quote A complaint
The mini-drill is quite functional ... I used the same eldv. DPM-30-N1-05 (without additional housing) with a collet for a drill. Powered by an adjustable DC source. This is to adjust the speed and power on the shaft ...
The buttons you have are weak (especially with fixation). Eldv. This is inductance.
Remember, at our work the installer made a primitive adapt - a mini eldv with a cartridge for small drills (spring loaded up). You push your hand on top of the rod - you move the eldv to the base on which the board (textolite) or part. No rack and pinion (gears, etc.) gears. His acquaintances from the neighboring department criticized for the primitive ... And then they come - give yes let drill, it is very necessary to quickly do (finish the board) and so on
Author +1
Reply To quote A complaint
A negative rating, also a rating.
The result is achieved - you paid attention to my work - THIS IS IMPORTANT !!!
-2
Reply To quote A complaint
acute "But in general - there is no limit to perfection !!!"
Actually, yes! Made filthy, not hands. Sorry.
Author +3
Reply To quote A complaint
According to the first - there are no ideas yet, but an empty place is the handle of a tool. I doubt that it is convenient to work with a drill the size of the engine itself.
According to the second, this idea was, but:
- the engine inside the case partially blocks access to the standard button;
- soldering wires to the standard button inside the case is somewhat problematic;
- The standard button works in conjunction with the standard diffuser.
But in general - there is no limit to perfection !!!
Author 0
Reply To quote A complaint
Application, in the presence of ingenuity and free time, is very diverse. I will try, for site visitors, to demonstrate this soon. Expect !!!
+1
Reply To quote A complaint
1. You have half of the internal volume empty. Do not intend to use it somehow?
2.Why didn’t you use the regular switching organs of the flashlight, are there both functions you implemented there?
+1
Reply To quote A complaint
And for what other purposes can you use such small engines?

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