In this video i'm turning a stainless steel bolt into a nice little combination lock.
I was always fascinated by those antique combination locks. I really like the design of them. A few weeks ago I bought one from eBay, but it turned out to be a cheap fake copy. I was really disapointed. Well if I can't buy one, then I make one myself. It was quite a challenge to get all the parts done and fit together, but the end result speaks for itself. I'm very happy how it turned out and I'm glad I made it.
I hope you like my work and the video.
Huge thank you to all of my Patreon and PayPal supporters and specially to:
Amanda Taylor, Esq
00:10 cutting the bolt in pieces on the lathe
00:53 making the side plates of the lock
02:14 making the first pin, shaft for wheels (fix side)
03:46 making the second pin, upper shaft (fix side)
04:37 making the third pin, key (movable side)
06:33 making the fourth pin, upper shaft (movable side)
07:16 TIG welding the pins and side plates together
07:35 sanding and polishing the welded parts
07:57 filing the slot for the secure ring
08:16 making the wheels with numbers out of brass
09:16 etching the numbers with ferric chloride
10:52 knurling the whells with the numbers
11:48 making five tiny springs with 0.3mm spring steel wire
12:20 showing the five steel balls
12:24 assembling the wheels with the numbers
12:44 making a secure ring with 0.8mm spring steel wire
13:13 assembling the secure ring
13:21 showing the finished combination lock
Time and costs of this restoration:
I was working on this project over 2 weeks
$5 stainless steel bolt M20x70
$40 knurling wheel
$2 printing the numbers
$15 steel balls and spring steel wire
If you have any questions about the process, machines i'm using or other stuff, just ask me in the comments. I read them all and i try to reply as soon as possible.
Sorry for my bad english, it's not my language. I try my best to improve my technical english.
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Thank you for watching :-)