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Category: Trautman hook

Trautmann hook [3D printed steel parts, assembly, first use]

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - Trautmann hook [3D printed steel parts, assembly, first use]; published December 28, 2016, 17:53; URL: https://www.swisswuff.ch/tech/?p=7037.

BibTeX: @MISC{schweitzer_wolf_1571329381, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - Trautmann hook [3D printed steel parts, assembly, first use]}}, month = {December},year = {2016}, url = {https://www.swisswuff.ch/tech/?p=7037}}


First, I had performed a feasibility test using a PLA model that I had printed myself to see whether I really wanted a Trautman hook. After that, I had decided that I wanted one.

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Towards Extreme Cyborging (EC) microworks: very small things [grip mechanics theory, parametrization and then testing side by side - Trautman hook, Hosmer Mod 5 hook, TRS Prehensor, Touch Bionics iLimb revolution]

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - Towards Extreme Cyborging (EC) microworks: very small things [grip mechanics theory, parametrization and then testing side by side - Trautman hook, Hosmer Mod 5 hook, TRS Prehensor, Touch Bionics iLimb revolution]; published December 28, 2016, 17:52; URL: https://www.swisswuff.ch/tech/?p=7010.

BibTeX: @MISC{schweitzer_wolf_1571329381, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - Towards Extreme Cyborging (EC) microworks: very small things [grip mechanics theory, parametrization and then testing side by side - Trautman hook, Hosmer Mod 5 hook, TRS Prehensor, Touch Bionics iLimb revolution]}}, month = {December},year = {2016}, url = {https://www.swisswuff.ch/tech/?p=7010}}


Small things to be picked up, side by side demo with other prosthetic devices.

Yes, very small things.

"It is the little things that count", they said. "The little things are important", they said. They all said that. But behold, their "bionic" apparatus cannot handle little things! "Why is a hook not evil", they wondered. And a storm of little demo videos came upon them. Deep into the myriad of grip mechanics this went.

"Get a grip on grips", he said.

This totally bypasses the fact that after laying down real life consequences for what I call Extreme Cyborging, I just finished building my first own steel Trautman hook, and all just with shape information from the internet. Yeah, you read that right. I did not build yet another one of the ubiquitous funny hands that promises to change my life or what it is these 3D printed hands now do - no. I sit on the demand and I sit on the technology and what is it that I do? See? This is what should really disturb you - because given the current signs of the times, it should feel deeply wrong on many levels. To you. But then, we were likely living on different planets all along, and maybe it is time you realize that too ; ) After we knew since years in detail what the Cybathlon showed us yet again, with glory but not with any improvement, it is yet again up to us, the users, to push further into what is, what can be, and what matters. And honestly? We have seen far enough funny hand videos.

What we have not seen is the Rebirth of The Cool. The Rebirth of an absolutely insane gripper. Physically. In 3D printed steel. The Trautman hook is such a device. And I went for it just because I can.
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Trautman Hook (3d printed PLA, first bench test) [design]

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - Trautman Hook (3d printed PLA, first bench test) [design]; published November 26, 2016, 11:17; URL: https://www.swisswuff.ch/tech/?p=6879.

BibTeX: @MISC{schweitzer_wolf_1571329381, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - Trautman Hook (3d printed PLA, first bench test) [design]}}, month = {November},year = {2016}, url = {https://www.swisswuff.ch/tech/?p=6879}}


From the idea of Open Prosthetics, I took the Trautman Hook stls (also published on Thingiverse [link][link]) and printed them using PLA on a Makerbot Replicator. Then I put them together and tried them out.

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Retro [hook device review]

Cite this article:
Wolf Schweitzer: Technical Below Elbow Amputee Issues - Retro [hook device review]; published November 14, 2013, 06:39; URL: https://www.swisswuff.ch/tech/?p=2298.

BibTeX: @MISC{schweitzer_wolf_1571329381, author = {Wolf Schweitzer}, title = {{Technical Below Elbow Amputee Issues - Retro [hook device review]}}, month = {November},year = {2013}, url = {https://www.swisswuff.ch/tech/?p=2298}}


The prosthetic device choices currently is restricted in that there are hardly any new developments that deserve the tag "ground breaking".

With the notable exceptions of the V2P Prehensor and now the Retro, both by Bradley Veatch [Toughware PRX].

The Retro is priced at 600 USD, so the question is, what do we get for the money.

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