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Merits 5 from 3 users
Re: BitcoinTalk Newbie of the Year 2021[Nominations]
by
LoyceV
on 29/12/2021, 15:47:12 UTC
⭐ Merited by The Pharmacist (3) ,SatoPrincess (1) ,ETFbitcoin (1)
Have you seen The future of Bitcointalk: Low Ranking Top Merit earners in the past 30 days?

Based on Merit earned and post quality, n0nce did quite good this year.

2. You must be a Full Member or higher to ~ Vote
You can't enforce this in a poll.

Quote
5. Include a quote of one of the nominee's "meritable" posts and a short explanation why he deserves the nomination.
Short explanation: his posts are useful.

Sample:
n0nce's Steel Washer Backup jig


     Very nicely readable 6mm letters (tape holds washer in place) | Prototypes & final version. Improved letter spacing & tolerances.



This is pretty much how it works

Backup pure material cost: 4€
Requirements: stamps ~20€, jig ~10€
Go big or go home! 30x10.5mm washers!
6mm tall letters

PM or comment if interested Any custom size is possible!

The idea is inspired from econoalchemist's blog post Securing a Bitcoin seed phrase in stainless-steel washers. and it's very great:
  • Materials cost under 5 bucks (€, $, £, it's always the same ballpark). I paid around 3€ for 32 washers and maybe 1€ for the screw and nut.
  • No shipping cost since everyone has a hardware store nearby.
  • Anonymous since nobody knows what you use basic metal hardware for.
  • All stainless steel, quite durable, on par with commercial Bitcoin backup products.
  • Greater thickness than some commercial products

Backstory:
After reading the aforementioned blog post, I went to download the file for the jig from blockmic. It can be found in their Thingiverse and they wrote a very good article about it.

But: For one, I wanted to use larger washers. In fact, I think I got the largest that I could find in the first hardware store I walked into. A reason for this is that larger washers are usually also thicker and thus more durable, and the other reason is simply because the stamps I already had were too large for such small washers.

I have 6mm high letters and the stamps are 9x9mm in size.

So I did the natural thing: create a new 3D design from scratch, which is completely parametrized. This allows me to adapt it for anyone with different sized washers and / or stamps! Smiley Then did a few iterations, as shown here, and now it's ready to rock!

It's really the most pleasent stamping experience (only did plates without any jig so far), since the stamp is held in place very well, while still being able to slide and of course it's perfectly square. The inner and outer parts are also designed such that there is not much friction when assembling them, but there is no wobble when stamping. So you can actually go back and re-stamp a letter if it didn't come out perfect for example!



PSA: I can achieve much better print quality than what you see in the images, but I am finishing up some old rolls which have taken a lot of humidity so the results don't look as good. Also, I used more perimeters than CryptoCloaks since it makes things more sturdy. Finally, the darker colour you use, the more print lines show (especially when photographed) Grin


An idea to achieve tamper evidence and protection (though we had the discussion if it's even a good idea or not): weld on the nut.
Protection: Not everyone just has an angle grinder.
Evidence: Someone would need to weld it back on which is visible, or redo the backup identically, thus needing a welder AND a 3D printer and all the same supplies that you used. Otherwise the letter size would be different for example.