Unusual Handcuffs

[Stahlketten]

Oh, by the way, if you are going to use two pairs of hinged handcuffs in back, the set closer to your wrists has the keyholes facing away from your hands. The other set above it has the keyholes facing toward the first set. Think about how you would need to manipulate the cuffs in order just to get a key into the hole and how you would do this while wearing both sets of cuffs behind your back.

[ruru67]

The problem is that some handcuffs ARE difficult to get out of without assistance but you are depending on just having or not having the keys for security. An example is a pair or two of hinged handcuffs in back with the keyholes facing away from the hands. Those are very difficult to get out of without some assistance even with the keys in hand. Not a great idea for SELF bondage though.

I can (with the key) get out of hinged cuffs when the keyholes are facing the wrong way. It's a lot harder with hands behind the back, of course, but it can be done. (I haven't tried with rigid cuffs.) But that's not the point - once keys are available, it should be easy to get out; the point is that getting to the keys before the appointed time or conditions being met should be very hard or impossible without breaking things, and escape without the keys, again, should be very hard and/or require breaking things.

I'd rather have cuffs that can be easily locked (and double-locked, if they could ratchet too tight) without the key, with a lock that is very hard to pick while cuffed and without specialised tools, but open easily once the key is available. If they also had thick rounded bracelets for comfortable longer term wear, that would be a bonus...

[Stahlketten]

There are a lot of "shoulds" in just about every field. Until we start manufacturing things ourselves, we are at the mercy of those that do. I believe a lot of good stuff is out there, but on a very limited budget, you probably are not going to purchase any of them to experiment.
If you decide to purchase a few more toys, you may want to look at prisoner transport in the United States. The equipment used is pretty standard and quite effective if used correctly. For self bondage, I would alter perhaps just one thing and make the handcuffs removable if one additional padlock is removed. Normally the additional padlock is not even present. (Put the padlock through the Martin link to hold the Black Box in place.)

[Jimdini]

I have a pair of press lock wrist manacles with a six inch rigid bar although this is a simple lock system the wrists being held this distance apart makes them escape proof without your jailer unlocking them, even if the keys are readily available.

[McKinleyZonker]

Wow! Does “press lock” mean you can get into them by yourself?

I don’t suppose you have a link to the vendor - those look great!

[Jimdini]

Wow! Does “press lock” mean you can get into them by yourself?

Unfortunately ,yes. But as the locks are out of reach you do need someone to release you!

The company I bought from doesn't seem to be there any more but here is a link to an ebay supplier,
www.ebay.co.uk/itm/144955026952?_skw=pr ... BMrrTzno1l

[Stahlketten]

I have a matching set of wrist and ankle cuffs like that but with a connecting chain and even a matching collar.
They are pretty well made but the ankle cuffs are a touch small for walking around.

[Jimdini]

I have a matching set of wrist and ankle cuffs like that but with a connecting chain and even a matching collar.
They are pretty well made but the ankle cuffs are a touch small for walking around.

Yes, I have collar and cuffs with the press locks as well. I have oval cuffs, while these are snug, I don't have problems walking around in them.

[Stahlketten]

The problem with these press-lock cuffs is that the manufacturer doesn't seem to spend much time making sure the lock is aligned in any particular direction and that makes things difficult when working in low light conditions. Another funny thing is that many of the current sets are only held together by quick links.

As for ankle cuffs, some people like them to be so small as to be held above the ankle bones. I prefer them to be large enough to mostly clear the Achilles tendon.

[lotharj]

We made what we believe are the ultimate restraints.

3D printed completely except for lock cylinder. Custom fit, press locking, lightweight, strong, super wide 60mm, thick 30mm, and good looking My owner has me thoroughly locked and controlled within 15 secs.

20250319_084620.jpg (28.94 KiB) Viewed 20579 times

[Stahlketten]

That definitely takes the prize so far for unusual.
What is the material?

[lotharj]

PETG Translucent Blue.

We have been testing them the past few weeks (3rd version) and are incredibly strong. Definitely requires a key, heatgun, or saw to remove. Have held up to a lot of struggles (tickle flights) + everyday wear and other than some rub scratches they aren't showing any signs of distress.

We have been contemplating sending them out to be sintered for additional security however we agree I could cut steel ones with tools as well (slower). For now my owner is initially them with a marker to make sure I don't break and replace.

I obviously cannot be locked permanently regardless so at some point there is trust I'll "come back"

[Stahlketten]

I was not familiar with PETG, but after doing some poking around, I am not convinced it is a strong enough material for restraints unless the captive is cooperative. The impact resistance seems particularly poor. I saw this in a video demonstration in comparison to ABS which I am quite familiar with. The Reddit discussion on the topic seems to come to the same conclusion.

[lotharj]

Could easily print them in ABS, ASA (even sintered metal if truly needed) instead of PETG, however, just cannot see how this would be any more secure. For posterity we may just do that, but if I have tools I will get out regardless of the material. Photographed is Version 3, and in order to retrieve/reuse the lock cylinders from v1 and v2 we had to use a lot of effort with powertools to get them out. No way it was going to break by hand. Remember, this is a 60x30mm chunk of plastic circling flesh, they make kid rocking horses out 10x less material.

My owner is extremely paranoid about my escape while present and even they realize at the end of the day, keeping me in PETG, ASA, Darby / Clujeso (steel) is just a hacksaw away from being opened

[lotharj]

Relative sizing to appreciate how thick these are. Clejuso #15
Chicago Darby
Standard handcuffs
PLA (grey cuff with integrated lock)
PLA snap cuffs (black pair first I ever 3d printed )
PETG (blue)

20250322_113955.jpg (30.76 KiB) Viewed 14771 times

[Stahlketten]

The cuff itself is a thick section but that just makes it into a convenient tool to shatter the chain which is not a thick section.