KS-17 energy/gas key - triangular/triangular - emergency 3D printing

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#31 20586449 19 May 2023 09:20

keseszel keseszel

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Post #31
20586449 19 May 2023 09:20

I was amused by this topic. But I've seen guns printed on 3D printers in movies, wreaking death and destruction . Interesting.
I was more curious about what program the product was designed with and how long it took, but the answer is in the subject .
Now I'm also "tired" of such a printer and I'm looking for something up to 1000 PLN so that it doesn't hurt when it goes away.... Unfortunately, sensible products are above my magic amount.... The infamous Enders... But recently, the guy from the channel "And this one about drones again" described some "padaca" under 1000 PLN....

And my comment- I would use pliers to open the . In the wide range I have something would be found
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#32 20586515 19 May 2023 10:11

metalMANiu metalMANiu

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Post #32
20586515 19 May 2023 10:11

@keseszel The author has already written:

p.kaczmarek2 wrote:
one of the padlocks would not open for anything by "guerrilla" methods

So it is to be guessed that pliers were also used, but without success
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#33 20586914 19 May 2023 15:40

miszcz310 miszcz310

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20586914 19 May 2023 15:40

keseszel wrote:
I'm looking for something up to 1000 PLN

Here you go:
https://www.creality3dofficial.com/products/official-creality-ender-3-3d-printer
Official creality shop, 2018 version of the printer (i.e. the old control board, if you wanted bltouch you would have to buy such an adapter for the display). Correction! However, this has a better board, which means you can install bl-touch at all without any problem! Well, now that's a gem altogether!
I have exactly that with just bltouch, and a raspberry pi and clipper + mainsail. Great, I recommend it.
If the exchange rate of the dollar was also in 2018, it would be great.

Edit. so that it is not shipping from the Czech Republic for free that is only the cost of the printer and there is no duty on it.
Edit 2, there is still promo cod "CRD5" 5$ reduction i.e. for 155$ you can buy an Enderk. I don't think you can get it any cheaper. For 350PLN you can go crazy and buy a bltouch (some clone from ali + some single board computer for a clipper and hey banana)
#34 20642280 04 Jul 2023 23:01

mars1 mars1

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Post #34
20642280 04 Jul 2023 23:01

>>20586515

In my adventure with the reluctant locker (pliers failed), an 11mm hexagon socket spanner worked perfectly. I didn't check that the socket would go into the padlock hole.
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KS-17 energy/gas key - triangular/triangular - emergency 3D printing

FAQ

TL;DR: Need a KS‑17 triangular utility key fast? A printable version weighs 2 g and takes ~20 minutes; “Two grams and 20 minutes!” solves Sunday emergencies. [Elektroda, p.kaczmarek2, post #20575557]

Why it matters: Field techs and makers can open authorized electrical enclosures without waiting for shipping or stores.

Quick Facts

- Print time: Approx. 20 minutes on default Cura settings. [Elektroda, p.kaczmarek2, post #20575557]
- Filament use: ~2 g; cost is pennies at 50 PLN/kg. [Elektroda, p.kaczmarek2, post #20575557]
- Typical design effort: “a dozen minutes,” plus a few test fits. [Elektroda, p.kaczmarek2, post #20575740]
- Speed-ups: Increase “Print Speed” and use on-printer speed scaling (e.g., Ender 3 Pro). [Elektroda, p.kaczmarek2, post #20575752]
- Buying instead: ~£6 plus ~£9 shipping; wait time applies. [Elektroda, p.kaczmarek2, post #20575557]

What is a KS‑17 triangular key used for?

A KS‑17 triangular key is a simple drive tool for utility padlocks and cabinet latches on electrical boxes. It mates with a triangular recess and lets authorized users open or secure enclosures. The forum project replicates this geometry for emergency 3D printing when a store-bought key is unavailable. [Elektroda, p.kaczmarek2, post #20575557]

How long does it take to design and print the emergency key?

Design takes about a dozen minutes using basic shapes. The author also showed a similar shape modeled in roughly two minutes for demo. Printing the working key on default settings took about 20 minutes. Total turnaround, including a few test fits, stayed short enough for same‑day use. [Elektroda, p.kaczmarek2, post #20575740]

What’s the total time if I rush it end‑to‑end?

Community guidance: design in 15–20 minutes and print in 10–15 minutes. Faster printers, like a tuned Voron, can push a usable print below five minutes. “Including even test prints you can have such an item under an hour.” [Elektroda, miszcz310, post #20575743]

Which software and workflow were used to model the key?

Blender was used: create a triangular prism to match the lock, subtract it (boolean) from a cylinder, mirror for symmetry, then add depth. The cut‑through triangle simplifies printing without supports and saves material. STL was sliced in Cura with defaults. [Elektroda, p.kaczmarek2, post #20575557]

How do I print it? (3‑step How‑To)

Model the triangle and boolean‑cut it from a round body; add depth and mirror for symmetry.
Slice in Cura at default settings; estimate ~20 minutes and ~2 g.
Print, test fit, and reprint if needed; tweak “Print Speed” if time‑critical. [Elektroda, p.kaczmarek2, post #20575557]

Can I speed up the print safely on common printers?

Yes. For simple shapes, increase the slicer’s “Print Speed.” On an Ender 3 Pro, use the front‑panel speed scale during printing to shorten time with minimal visible quality loss. Always verify fit before applying high torque. [Elektroda, p.kaczmarek2, post #20575752]

How durable is a printed key versus a metal one?

It won’t match metal, but good design and print strategy can reach usable strength for light utility torque. Experienced users report mechanical reinforcement options and improving results year over year. Favor dense walls, adequate layer height, and stronger filaments when possible. [Elektroda, miszcz310, post #20577479]

Should the triangular hole go through, or stop at depth for strength?

One contributor recommends a blind (not through) triangular recess to increase structural strength and resist deformation or tearing. Since the key prints in a stable orientation, supports are unnecessary with this approach. [Elektroda, miroskop, post #20576283]

What if pliers or improvised methods fail?

The author noted one padlock would not open using “guerrilla” methods, which prompted printing the key. This edge case shows why a well‑fitting driver profile can succeed where pliers slip or deform. [Elektroda, p.kaczmarek2, post #20575557]

Is there a quick non‑printing alternative that fits the triangular recess?

Yes. An 11 mm hex socket reportedly worked on a reluctant lock. Check that the socket fits the padlock opening and engages fully before turning, or you risk rounding. [Elektroda, mars1, post #20642280]

What does the filament actually cost for one key?

The job used about 2 g of filament. At 50 PLN per kilogram, material cost is only a few grosz (pennies), even before considering electricity and wear. That’s far below buying and shipping a metal key. [Elektroda, p.kaczmarek2, post #20575557]

Why not just buy the key instead of printing?

A ready‑made key costs around £6 plus about £9 shipping, and you must wait for delivery. Printing solves urgent access needs, especially when the nearest store is far or closed. [Elektroda, p.kaczmarek2, post #20575557]

Will printing help during a power outage emergency?

A commenter highlighted the paradox: if power is out, the printer cannot run. Plan for a UPS or use mechanical alternatives when electricity is unavailable. “What, the printer worked by sheer force of will?” [Elektroda, teskot, post #20576425]

Do triangular keys come in different sizes?

Yes. Not all triangular drives match. Buying the wrong size wastes time, and sellers can ship mismatches. Printing to fit the actual lock profile reduces that risk and avoids re‑shipping delays. [Elektroda, metalMANiu, post #20575850]