{"id":9769,"date":"2019-08-10T10:51:43","date_gmt":"2019-08-10T08:51:43","guid":{"rendered":"https:\/\/www.swisswuff.ch\/tech\/?p=9769"},"modified":"2021-03-13T14:22:59","modified_gmt":"2021-03-13T13:22:59","slug":"trs-jaws-new-product-first-use-report","status":"publish","type":"post","link":"https:\/\/www.swisswuff.ch\/tech\/?p=9769","title":{"rendered":"TRS Jaws [new product &#8211; first use report]"},"content":{"rendered":"<p>The TRS Jaws is a voluntary opening gripper where you can set the grip strength by a lever. The grip then varies between very light, maybe under 1 kg or so, to somewhere above 5 kg. This is a first real use report, after I used it permanently since roughly around May 21, 2019, give or take a few hours.<\/p>\n<p>There are just a few points to address at this stage. If you wear a body powered arm for real work [<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=8066\" target=\"_blank\" rel=\"noopener noreferrer\">link<\/a>], you may now buy one.<\/p>\n<p><!--more--><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.swisswuff.ch\/tech\/?p=9769\/#Point_1_%E2%80%93_device_description\" >Point 1 &#8211; device description<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.swisswuff.ch\/tech\/?p=9769\/#Point_2_if_you_only_can_buy_one_1_device_this_may_be_it\" >Point 2: if you only can buy one (1) device, this may be it<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.swisswuff.ch\/tech\/?p=9769\/#Grips_%E2%80%93_geometry_and_device_cover\" >Grips &#8211; geometry and device cover<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.swisswuff.ch\/tech\/?p=9769\/#Performance_markers\" >Performance markers<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.swisswuff.ch\/tech\/?p=9769\/#New_order_new_rank\" >New order, new rank<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.swisswuff.ch\/tech\/?p=9769\/#Point_3_%E2%80%93_use_examples\" >Point 3 &#8211; use examples<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.swisswuff.ch\/tech\/?p=9769\/#Point_4_%E2%80%93_use_and_performance_scales_now_have_a_new_standard\" >Point 4 &#8211; use and performance scales now have a new standard<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.swisswuff.ch\/tech\/?p=9769\/#Point_5_%E2%80%93_they_totally_did_get_the_Cyborg_angle_this_time\" >Point 5 &#8211; they totally did get the Cyborg angle this time!<\/a><\/li><\/ul><\/nav><\/div>\n<h1><span class=\"ez-toc-section\" id=\"Point_1_%E2%80%93_device_description\"><\/span>Point 1 &#8211; device description<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p>The TRS Jaws has a metal body and plastic surfaces for the grippers. There is a single spring contained inside. Its pull strength can be adjusted with a lever (see image below: A), from really low grip strengths to somewhere past 5 kg [<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=7085\" target=\"_blank\" rel=\"noopener noreferrer\">link<\/a>]. There is a compression \/ clamp type swivel mechanism that allows some degree of wrist angle change; it is adjusted simply by applying pressure against that joint (image below: B). I bought it directly from TRS [link] for around 1200 USD.<\/p>\n<p><a href=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/20190712_055749.jpg\"><img decoding=\"async\" class=\"alignnone size-full wp-image-9774\" src=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/20190712_055749.jpg\" alt=\"\" width=\"100%\" srcset=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/20190712_055749.jpg 900w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/20190712_055749-300x184.jpg 300w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/20190712_055749-768x472.jpg 768w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/20190712_055756.jpg\"><img decoding=\"async\" class=\"alignnone size-full wp-image-9775\" src=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/20190712_055756.jpg\" alt=\"\" width=\"100%\" srcset=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/20190712_055756.jpg 900w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/20190712_055756-300x237.jpg 300w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/20190712_055756-768x607.jpg 768w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/jawsdrawing.png\"><img decoding=\"async\" class=\"alignnone size-full wp-image-9781\" src=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/jawsdrawing.png\" alt=\"\" width=\"100%\" srcset=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/jawsdrawing.png 700w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/jawsdrawing-300x184.png 300w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/a><\/p>\n<h1><span class=\"ez-toc-section\" id=\"Point_2_if_you_only_can_buy_one_1_device_this_may_be_it\"><\/span>Point 2: if you only can buy one (1) device, this may be it<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<h2><span class=\"ez-toc-section\" id=\"Grips_%E2%80%93_geometry_and_device_cover\"><\/span>Grips &#8211; geometry and device cover<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Now, grip geometry &#8211; shape, materials &#8211; can make up for grip strength, or, fail a strong gripper. Check this post about the correlation of grip strength and geometry [<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=390\" target=\"_blank\" rel=\"noopener noreferrer\">link<\/a>].<\/p>\n<p>This means that, for example, a metal hook with 8 or 10 kg of insane rubber number enhanced grip still may be unable to hold on to a heavy smooth object &#8211; whereas a soft deformable surface (such as the ones that I proposed for the V2P Prehensor [<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=342\" target=\"_blank\" rel=\"noopener noreferrer\">link<\/a>] or the Toughware Equilux [<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=8248\" target=\"_blank\" rel=\"noopener noreferrer\">link<\/a>]) may go a long way towards making up for relatively low grip strengths. It also means that an iLimb, despite a halfway soft covering, still cannot reliably hold a spoon or a hammer [<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=9594\" target=\"_blank\" rel=\"noopener noreferrer\">link<\/a>] &#8211; particularly if the handle \/ stem of the hammer is thin and the hand is unable geometrically to cover that type of object shape, grip wise.<\/p>\n<p>But this device, the TRS Jaws?<\/p>\n<p>Damn. I first thought this was never going anywhere with &#8220;just&#8221; 5-6 kg [<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=7085\" target=\"_blank\" rel=\"noopener noreferrer\">link<\/a>], but I found that first consideration was dead wrong. The grip shape and the covers appear to be so well adapted to what I do, that I was not even able to put it down.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Performance_markers\"><\/span>Performance markers<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<pre style=\"text-align: center;\"><strong>You do not pick TRS Jaws - TRS Jaws picks you #truecyborg #prostheticarm #prosthetichook<\/strong><\/pre>\n<p>In short, I have been using this device since the day that I got it. I was not able to put it down. Some performance markers for this device are:<\/p>\n<ul>\n<li><strong>You do not pick TRS Jaws. TRS Jaws picks you.<\/strong> One glance at the new release post that the device was out and I preregistered then ordered. Then it got here. And so previously, in times before TRS Jaws, I had to only fasten my wrist ring connector screws (that came lose due to vibration such as industrial level typing, etc), once every half year or so. But with this device? Screws came lose every 3-4 weeks, that was how much more activity happened. That <a href=\"https:\/\/www.swisswuff.ch\/tech\/?cat=160\" target=\"_blank\" rel=\"noopener noreferrer\">screw losening interval may well serve as an indirect performance marker for heavy bimanual support work<\/a>. TRS Jaws nudged itself into my closer acceptance, all by itself. It was as if this device nudged itself into maybe six times as many at least moderately or significantly heavy grip situations as any device I had before. It was like it wanted to grip more stuff, better, more reliably.<\/li>\n<li><strong>Heavy lifting (equipment \/ boxes, bodies, etc.) was possible with far greater ease.<\/strong> Thing is that the relatively wide surface distributes pressure better than a thin metal hook. Also, the geometry is ready made for PVC boxes that I use for work stuff.<\/li>\n<li><strong>The heavier the work that the device flawlessly delivers the less overuse pain you get.<\/strong> Of course you need to overuse first in order to ever note a difference &#8211; so a large number of people (that never go there) will not find this relevant. My neck and shoulder region, mostly very tense after every 1-2 weeks of very heavy work, was not tense at all the last few months despite a full on work load. I would have to take a hot bath every 1-2 weeks at least in order to survive the asymmetry pains. Now, no hot baths any more. Hard to relate to other people, how that is extremely useful as a person to wear a prosthetic arm every day if serious lifting is in order.<\/li>\n<li><strong>The better the grip, the better the survival of critical objects that are held, gripped, handled.<\/strong> Items of value [read details below] were dropped not at all with an extra margin of safety any more. No cell phone or wallet drops, not even near miss drops, no high end camera near miss drops. This is <em>extremely<\/em> valuable as well.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"New_order_new_rank\"><\/span>New order, new rank<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>It is the device of choice to wear, it pushed the Toughware Equilux (almost) to rank 2. For our hiking and biking holidays, I brought both &#8211; the Toughware Equilux is still a bit better for biking as it has the voluntary closing control option that is indispensable for extreme grip strength application [<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=7085\" target=\"_blank\" rel=\"noopener noreferrer\">link<\/a>] and its Trautman hook related shape that locks the handle bar passively.<\/li>\n<li>The best device for kitchen or dinner table knives is still the Hosmer Model 5 hook. So that goes in the bag as well. And the only device that a self respecting heavy worker with loads of real work and real action can wear that does look like a human hand is the Becker Mechanical hand. So that is the list for now.<\/li>\n<li>So, new list of preference:<\/li>\n<li>1 &#8211; TRS Jaws &amp; Toughware Equilux<\/li>\n<li>2 &#8211; Hosmer Mod 5 &amp; Becker Hand<\/li>\n<li>3 &#8211; TRS Prehensor<\/li>\n<li>4 &#8211; Special grip devices: Toughware Retro, Hosmer Model 6 Backlocking Work Hook.<\/li>\n<\/ul>\n<h1><span class=\"ez-toc-section\" id=\"Point_3_%E2%80%93_use_examples\"><\/span>Point 3 &#8211; use examples<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p>The device is so good I almost forgot to take a few miles of photos, as I did previously with other devices. Also my action camera had died so I needed to first obtain a new one.<\/p>\n<p>Here is holding an electric screw driver. Snug as shit. No drops, ever [<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=9244#Error_rates_of_myoelectric_control_iLimb_Touchbionics_versus_body_powered_control_Becker_Imperial_hand_-_real_testing\" target=\"_blank\" rel=\"noopener noreferrer\">link<\/a>]. Not dropping this relevant device is paramount, as it is so heavy that if you get it onto your toes, toes hurt and maybe not good for device.<\/p>\n<p><a href=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/CIMG7744.jpg\"><img decoding=\"async\" class=\"alignnone size-full wp-image-9776\" src=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/CIMG7744.jpg\" alt=\"\" width=\"100%\" srcset=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/CIMG7744.jpg 900w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/CIMG7744-300x279.jpg 300w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/CIMG7744-768x714.jpg 768w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><\/a><\/p>\n<p>Here is holding an expensive DSLR camera (Nikon D750), Snug as shit.<\/p>\n<p>Why is not dropping this device important? You should know off-hand. <a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=7651\" target=\"_blank\" rel=\"noopener noreferrer\">If not: revise your &#8220;taxonomy&#8221;, dude<\/a>.<\/p>\n<p><a href=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/20190621_134655.jpg\"><img decoding=\"async\" class=\"alignnone size-full wp-image-9773\" src=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/20190621_134655.jpg\" alt=\"\" width=\"100%\" srcset=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/20190621_134655.jpg 1365w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/20190621_134655-300x225.jpg 300w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/20190621_134655-768x576.jpg 768w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/20190621_134655-1024x768.jpg 1024w\" sizes=\"(max-width: 1365px) 100vw, 1365px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/20190601_161113.jpg\"><img decoding=\"async\" class=\"alignnone size-full wp-image-9771\" src=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/20190601_161113.jpg\" alt=\"\" width=\"100%\" srcset=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/20190601_161113.jpg 900w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/20190601_161113-300x264.jpg 300w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/20190601_161113-768x675.jpg 768w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><\/a><\/p>\n<p>Here is carrying wallet and cell phone while exiting car.<\/p>\n<p><a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=7651\" target=\"_blank\" rel=\"noopener noreferrer\">That is a particularly critical grasp. First of all, any insurance may not insure mishaps, damages, accidents that occur &#8220;while entering or exiting a car&#8221;. Thus, a cell phone drop at that moment may be particularly expensive for the owner. Secondly, if ever you drop a wallet next to a car and content spills and rolls under the car etc., good luck with rearing the car out over that and getting all items back together. Last but not the least, elbow is bent in various positions, arm is being moved &#8211; so try that with a myoelectric arm with no unintended device opening \/ items dropping as consequence of limb positioning artifact.<\/a> And so despite the apparent harmless nature of that grasp, this one is a bit of a relevant and difficult one, at the same time.<\/p>\n<p>I know&#8230;. no one in &#8220;academia&#8221; &#8220;formally tests&#8221; these limb positioning artifacts using valuable everyday items, such as a cell phone and a wallet. Maybe that one is not even difficult enough, who knows.<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=9244\" target=\"_blank\" rel=\"noopener noreferrer\"> But we have it in black on white that &#8220;academia&#8221; does not care about testing using relevant error rates, and, that they do not get myoelectric error rates right, dimension wise.<\/a> So no wonder they cannot improve, ever.<\/p>\n<p>The high degree of reliability of such notoriously critical grips as this, not in a laboratory but in everyday life, under heat or very cold conditions alike, with or without sweat, with dry, greasy or wet skin, and even with a lot of sweat, are <em>required<\/em> to <em>prime my brain into accepting a prosthesis as a tool if not body extension that it automatically considers for grasps<\/em> &#8211; and real time speed and reaction of the control will be a next factor to discuss [<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=545\" target=\"_blank\" rel=\"noopener noreferrer\">link<\/a>], if ever. Not that you necessarily knew how to build a really reliable body powered prosthesis, and not that you <em>actually<\/em> wanted to know how prostheses are successfully integrated into a body scheme [<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=8513\" target=\"_blank\" rel=\"noopener noreferrer\">link<\/a>][<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=8882\" target=\"_blank\" rel=\"noopener noreferrer\">link<\/a>] ; ) I guess you&#8217;d a asked before, anyways.<\/p>\n<p><a href=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/jawscarry2.gif\"><img decoding=\"async\" class=\"alignnone size-full wp-image-9803\" src=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/jawscarry2.gif\" alt=\"\" width=\"100%\" \/><\/a><\/p>\n<p>Here is carrying a heavy laundry basket two floors up. Snug as shit.<\/p>\n<p><iframe loading=\"lazy\"  id=\"_ytid_71110\"  width=\"800\" height=\"450\"  data-origwidth=\"800\" data-origheight=\"450\" src=\"https:\/\/www.youtube.com\/embed\/M-PenNnCUic?enablejsapi=1&#038;autoplay=0&#038;cc_load_policy=0&#038;cc_lang_pref=&#038;iv_load_policy=1&#038;loop=0&#038;rel=1&#038;fs=1&#038;playsinline=0&#038;autohide=2&#038;theme=dark&#038;color=red&#038;controls=1&#038;disablekb=0&#038;\" class=\"__youtube_prefs__  epyt-is-override  no-lazyload\" title=\"YouTube player\"  allow=\"fullscreen; accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen data-no-lazy=\"1\" data-skipgform_ajax_framebjll=\"\"><\/iframe><\/p>\n<p>Garden work &#8211; cutting hedges with the electric hedge cutter proved surprisingly well, even just with the regular \/ standard TRS Jaws. The grip force is not insanely high, but the grip function is really good. I had both left arm (&#8220;intact&#8221;) and amputated side (with prosthesis on) ache the exact same amount the day after I did this hedge cut &#8211; a sign that I was very well and symmetrically balanced here. It is better than the backlocking Hosmer 6 for this in my view, and that says something because the backlocking Hosmer 6 is a <em>beast<\/em>.<\/p>\n<p><a href=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2021\/03\/20210308_110345-scaled.jpg\"><img decoding=\"async\" class=\"alignnone size-large wp-image-11640\" src=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2021\/03\/20210308_110345-1024x768.jpg\" alt=\"\" width=\"100%\" srcset=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2021\/03\/20210308_110345-1024x768.jpg 1024w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2021\/03\/20210308_110345-300x225.jpg 300w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2021\/03\/20210308_110345-768x576.jpg 768w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2021\/03\/20210308_110345-1536x1152.jpg 1536w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2021\/03\/20210308_110345-2048x1536.jpg 2048w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2021\/03\/20210308_110345-1218x914.jpg 1218w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2021\/03\/20210308_110345-870x653.jpg 870w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2021\/03\/20210308_110345-480x360.jpg 480w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2021\/03\/20210308_110356-scaled.jpg\"><img decoding=\"async\" class=\"alignnone size-large wp-image-11639\" src=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2021\/03\/20210308_110356-1024x768.jpg\" alt=\"\" width=\"100%\" srcset=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2021\/03\/20210308_110356-1024x768.jpg 1024w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2021\/03\/20210308_110356-300x225.jpg 300w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2021\/03\/20210308_110356-768x576.jpg 768w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2021\/03\/20210308_110356-1536x1152.jpg 1536w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2021\/03\/20210308_110356-2048x1536.jpg 2048w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2021\/03\/20210308_110356-1218x914.jpg 1218w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2021\/03\/20210308_110356-870x653.jpg 870w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2021\/03\/20210308_110356-480x360.jpg 480w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/p>\n<p><a href=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2021\/03\/20210308_110359-scaled.jpg\"><img decoding=\"async\" class=\"alignnone size-large wp-image-11638\" src=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2021\/03\/20210308_110359-1024x768.jpg\" alt=\"\" width=\"100%\" srcset=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2021\/03\/20210308_110359-1024x768.jpg 1024w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2021\/03\/20210308_110359-300x225.jpg 300w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2021\/03\/20210308_110359-768x576.jpg 768w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2021\/03\/20210308_110359-1536x1152.jpg 1536w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2021\/03\/20210308_110359-2048x1536.jpg 2048w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2021\/03\/20210308_110359-1218x914.jpg 1218w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2021\/03\/20210308_110359-870x653.jpg 870w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2021\/03\/20210308_110359-480x360.jpg 480w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/p>\n<p>As we see, no problem at all for TRS Jaws. Snug as shit.<\/p>\n<p>Next image sequence &#8211; below &#8211; shows me trying to fish out the cell phone while keeping the wallet in the grip of the device that works like a charm, with elbow bent while walking. Snug as shit, again.<\/p>\n<p><a href=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/jawscarry1.gif\"><img decoding=\"async\" class=\"alignnone size-full wp-image-9804\" src=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/jawscarry1.gif\" alt=\"\" width=\"100%\" \/><\/a><\/p>\n<p>When riding a mountain bike, holding on to the handle bar is one thing. Works, snug as shit.<\/p>\n<p><a href=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/jawsbike1.gif\"><img decoding=\"async\" class=\"alignnone size-full wp-image-9787\" src=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/jawsbike1.gif\" alt=\"\" width=\"100%\" \/><\/a><\/p>\n<p>But if you need to change position, &#8230; I need to let go then ride single-handedly for a while then be fast to grab the handle bar again. Fast and then snug as shit.<\/p>\n<p><a href=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/jawsbike2.gif\"><img decoding=\"async\" class=\"alignnone size-full wp-image-9788\" src=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/jawsbike2.gif\" alt=\"\" width=\"100%\" \/><\/a><\/p>\n<p>Riding a road bike with a drop bar is another thing though. Snug as shit, too.<\/p>\n<p>Shift grip from lower to higher position while riding &#8211; flawless.<\/p>\n<p><a href=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/trsjawscolnagoroadbike3.gif\"><img decoding=\"async\" class=\"alignnone size-full wp-image-10077\" src=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/trsjawscolnagoroadbike3.gif\" alt=\"\" width=\"100%\" \/><\/a><\/p>\n<p><a href=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/trsjawscolnagoroadbike2.gif\"><img decoding=\"async\" class=\"alignnone size-full wp-image-10078\" src=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/trsjawscolnagoroadbike2.gif\" alt=\"\" width=\"100%\" \/><\/a><\/p>\n<p><a href=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/trsjawscolnagoroadbike1.gif\"><img decoding=\"async\" class=\"alignnone size-full wp-image-10079\" src=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/trsjawscolnagoroadbike1.gif\" alt=\"\" width=\"100%\" \/><\/a><\/p>\n<h1><span class=\"ez-toc-section\" id=\"Point_4_%E2%80%93_use_and_performance_scales_now_have_a_new_standard\"><\/span>Point 4 &#8211; use and performance scales now have a new standard<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p>If you &#8220;test&#8221; these things for a living and these don&#8217;t win in your world of &#8220;testing&#8221;, you test wrong. Non-negotiably. If you cannot understand how orthopedic correction and support and prosthetic performance rely on each other, then you may want to consider doing something else at this point: simply far too much was said (or written) already to explain all that [<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=7871\" target=\"_blank\" rel=\"noopener noreferrer\">check e.g. the technological aspects as seen through true geek eyes such as a parallel to Alex Roy<\/a>]. Sorry.<\/p>\n<pre style=\"text-align: center;\">You test wrong if TRS Jaws does not win #cybathlon #bettercyborg #truecyborg #understandingprostheticarms\r\n\r\n<\/pre>\n<p>You may actually get left behind, if you don&#8217;t understand this. Not now, not tomorrow, maybe. But when I, having routinely handled even past 100 kg of weights, will <em>not<\/em> need shoulder surgery some day,<em> but you will<\/em>, not having handled nearly as much. Just so we addressed that too.<\/p>\n<h1><span class=\"ez-toc-section\" id=\"Point_5_%E2%80%93_they_totally_did_get_the_Cyborg_angle_this_time\"><\/span>Point 5 &#8211; they totally <em>did<\/em> get the Cyborg angle this time!<span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p><strong>It is one thing<\/strong> to have a device that does not perform but that is used to play Cyborg [<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=6505\" target=\"_blank\" rel=\"noopener noreferrer\">see intro to my concept of &#8220;Extreme Cyborging&#8221; here<\/a>], to use it for future role model cosplay &#8211; such as the &#8220;bionic&#8221; hands worn by contemporary &#8220;ambassadors&#8221; for that type of under-performing technology. There, the problem is ultimately that given the bold &#8220;promises&#8221; these devices come with, if ever one wants to promote these boldly advertised claims, one might be forced into a role as a phony, a braggart a showoff, a poser, a swank, a tinhorn, a gobshite, a grandstander, in other words, a fake, <a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=3029\" target=\"_blank\" rel=\"noopener noreferrer\">a puppeteer really.<\/a> Not that there is a problem with puppeteers in general &#8211; all fine, I have such a device, I know what it can do but far worse, I have a pretty good idea about what all it cannot do. So, for example, these &#8220;bionic&#8221; hands with their somewhat ill-devised grip geometries [<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=7655\" target=\"_blank\" rel=\"noopener noreferrer\">link<\/a>] that are controlled by inherently faulty myoelectric controls [<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=9244\" target=\"_blank\" rel=\"noopener noreferrer\">you may really want to read about these problems here<\/a>] do not lend themselves for much else from view of <a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=8850\" target=\"_blank\" rel=\"noopener noreferrer\">real work<\/a> than for scripted gesture play [<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=5779\" target=\"_blank\" rel=\"noopener noreferrer\">link<\/a>]. If anyone <em>can<\/em> actually try to wear myoelectric arms and hope for at least reasonable success, check the sub-population with the lowest sweat rates [<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=9304\" target=\"_blank\" rel=\"noopener noreferrer\">link<\/a>]. You will have realized that yourself already &#8211; because, to recognize that, is also not very hard [<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=8066\" target=\"_blank\" rel=\"noopener noreferrer\">link<\/a>][<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=8492\" target=\"_blank\" rel=\"noopener noreferrer\">link<\/a>].<\/p>\n<pre style=\"text-align: center;\">You can't make people smarter. You can expose them to information, but your responsibility stops there. Mark Rippetoe<\/pre>\n<p><strong>It is another thing<\/strong> to wear a prosthetic device that <em>in fact<\/em> outperforms human hands &#8211; and if only for some individual tasks such as touching hot stuff: like, a metal split hook [<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=6135\" target=\"_blank\" rel=\"noopener noreferrer\">link<\/a>]. For possibly silly but rather deep reasons [<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=4681\" target=\"_blank\" rel=\"noopener noreferrer\">link<\/a>], &#8220;academia&#8221; does not seem to recognize any of these advanced modern [<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=9423\" target=\"_blank\" rel=\"noopener noreferrer\">link<\/a>] gripper devices as true transhumanist evolutions or as improvements in a deeper sense or as futuristic work adaptations for a better than real human that we we hope to become but will never be [<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=9539\" target=\"_blank\" rel=\"noopener noreferrer\">link<\/a>][<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=3398\" target=\"_blank\" rel=\"noopener noreferrer\">link<\/a>]. That is interesting because that is where the obvious and the &#8220;academic&#8221; provide a stunning absence of apparent intersection.<\/p>\n<p>And the TRS Jaws?<\/p>\n<p><a href=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/20190808_151816s.jpg\"><img decoding=\"async\" class=\"alignnone size-full wp-image-9937\" src=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/20190808_151816s.jpg\" alt=\"\" width=\"100%\" srcset=\"https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/20190808_151816s.jpg 400w, https:\/\/www.swisswuff.ch\/tech\/wp-content\/uploads\/2019\/08\/20190808_151816s-300x225.jpg 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><\/a><\/p>\n<p><em>(I was a bit tired from Extreme Cyborging on my new bike [<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=9900\" target=\"_blank\" rel=\"noopener noreferrer\">link<\/a>] and thus this may look too relaxed for your taste) (but: so what?)<\/em><\/p>\n<p>The TRS Jaws device totally performs <em>and<\/em> it looks the part &#8211; far beyond what the most courageous of guessers ever could have assumed [<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=8812\" target=\"_blank\" rel=\"noopener noreferrer\">link<\/a>]!<\/p>\n<p>More than one person<em> that had previously never commented on my prosthetic arm<\/em> now almost accosted me: their eyes fell out, they keeled over, they were positive about this device like no one was ever positive. They could not contain themselves, like, just &#8220;how bionic&#8221; the TRS Jaws looks. WTF. They were anxious to tell me that even at the unlikeliest moments. This device pushes things home in unlikely ways: <a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=3677\" target=\"_blank\" rel=\"noopener noreferrer\">it resides on the left \/ sunny side of the Uncanny Valley curve<\/a>, there, where <a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=8751\" target=\"_blank\" rel=\"noopener noreferrer\">no one of the military-space-technology guys<\/a> is looking (they always seem to dig on the shady side, there where anthropomorphic hands are placed). And while our planet sure has its share of self-proclaimed &#8220;Bionic Men&#8221; [<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=6505\" target=\"_blank\" rel=\"noopener noreferrer\">link<\/a>][<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=9492\" target=\"_blank\" rel=\"noopener noreferrer\">link<\/a>], a themed type of cosplay role, turns out this one actually is for <a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=8850\" target=\"_blank\" rel=\"noopener noreferrer\">real men<\/a>, which still is totally not the same.<\/p>\n<p>Just yesterday I was in a shop trying on jackets &#8211; also cleaning up after myself, that is, closing zippers and returning jackets onto the coat hangers with my TRS Jaws, far faster and far more fluent than any of the contenders as of recent times [<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=6378\" target=\"_blank\" rel=\"noopener noreferrer\">link<\/a>] &#8211; when another customer got stuck staring at me [<a href=\"https:\/\/www.reddit.com\/r\/westworldgame\/comments\/8t6mpz\/how_long_does_it_take_to_repair_a_glitched_host\/\" target=\"_blank\" rel=\"noopener noreferrer\">which may have massive consequences in relation to interpreting, say, the Cyborg Manifesto in relation to the actual impact of technology such as this<\/a>], with the one earpiece \/ temple of her reading glasses hanging from her left mouth angle. It would have been a sight for the gods. When I did catch her stare, she became unstuck and stuttered that &#8220;it was impressive to see how I managed to ..&#8221; etc., so I replied that I found it &#8220;far more impressive to see how she managed to stare so persistently without dropping the glasses from her mouth because that was something most people could not pull off&#8221;. After all it was not by the sound of &#8220;clunk&#8221; that I had noted her presence. Her further attempts to form sensible sentences faded away, and she then inched her way out of there. That is the type of situation that a TRS Jaws can get you in.<\/p>\n<p>If ever 2019 has a prosthetic fashion item that is absolutely indispensable if not just for pure function but because of its raw dedication to this aspect (you just scrolled across the text and images above without actually reading, right?) but also to make believe you can handle stuff manually <em>because you actually <\/em><em>can<\/em>, it is clearly the TRS Jaws. They entirely outdid themselves, this is a stunning piece of industrial design. As a visual statement, it is <em>far<\/em> bolder than any anthropomorphic prosthetic hand, while it is <em>truly<\/em> water proof, <em>truly<\/em> functional 24\/7, <em>truly<\/em> robust and <em>truly<\/em> worth its money. It is the first prosthetic arm device that is a symbol <em>because it is not<\/em> [<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=4239\" target=\"_blank\" rel=\"noopener noreferrer\">link<\/a>]. Thus it requires and deserves a real human to wear it, one that milks existence for raw real work performance.<\/p>\n<p>But be careful: while wearing <a href=\"https:\/\/www.swisswuff.ch\/tech\/?cat=64\" target=\"_blank\" rel=\"noopener noreferrer\">a Red Hand at the time when I invented that as an idea (late 2008 and then 2009)<\/a> [<a href=\"https:\/\/www.swisswuff.ch\/tech\/?p=183\" target=\"_blank\" rel=\"noopener noreferrer\">besides: why red?<\/a>] required at least some balls to wear, this may require even more balls &#8211; as it is truly more than a real statement: <em>it is a real thing<\/em>. Because once you wear one of these, other people may not want to help you stash a few heavy boxes any more. Instead they will think you are now good to go all by yourself &#8211; then you have to work that one out yourself. Which is not just a small price to pay for true manual competence, but the path you actually wanted to go. Didn&#8217;t you.<\/p>\n<p><em>Disclaimer: and so, I paid for the device, the first version of it had a flaw that I identified immediately, that I fixed myself with some nifty fix, I paid to ship it back and they implemented the fix using machined parts that are even better and sent it back to me. Now, this one certainly has gone to hell and back so to say before I started to consider it. That was between February and May 2019. it is routine that I trash a device on first touch. But very rarely a manufacturer gladly fixes a device so it works better under full loading, and almost never do they do that immediately<\/em><em>. So, TRS outdid themselves entirely. They are a great badge to wear as they do look out for hard work, real work, and high loads. <\/em><em>With that, I am afraid that I am not an ambassador but rather free in what I identify as good or bad. Just so you consider that in your considerations.<\/em><\/p>\n\n<div class=\"twitter-share\"><a href=\"https:\/\/twitter.com\/intent\/tweet?via=swisswuff\" class=\"twitter-share-button\" data-size=\"large\">Tweet<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"<p>The TRS Jaws is a voluntary opening gripper where you can set the grip strength by a lever. The grip then varies between very light, maybe under 1 kg or so, to somewhere above 5 kg. This is a first real use report, after I used it permanently since roughly around May 21, 2019, give&#8230;<\/p>\n","protected":false},"author":1,"featured_media":9776,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[175,160,16,204,58,129,3,8,202,296],"tags":[],"class_list":["post-9769","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-asymmetry","category-bimanual-task-benchmark","category-brands","category-extreme-cyborging","category-health","category-overuse-reduction","category-hook","category-prosthetics","category-trs","category-trs-jaws","wpcat-175-id","wpcat-160-id","wpcat-16-id","wpcat-204-id","wpcat-58-id","wpcat-129-id","wpcat-3-id","wpcat-8-id","wpcat-202-id","wpcat-296-id"],"publishpress_future_action":{"enabled":false,"date":"2026-05-25 04:46:42","action":"change-status","newStatus":"draft","terms":[],"taxonomy":"category","extraData":[]},"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/www.swisswuff.ch\/tech\/index.php?rest_route=\/wp\/v2\/posts\/9769","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.swisswuff.ch\/tech\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.swisswuff.ch\/tech\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.swisswuff.ch\/tech\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.swisswuff.ch\/tech\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=9769"}],"version-history":[{"count":33,"href":"https:\/\/www.swisswuff.ch\/tech\/index.php?rest_route=\/wp\/v2\/posts\/9769\/revisions"}],"predecessor-version":[{"id":11644,"href":"https:\/\/www.swisswuff.ch\/tech\/index.php?rest_route=\/wp\/v2\/posts\/9769\/revisions\/11644"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.swisswuff.ch\/tech\/index.php?rest_route=\/wp\/v2\/media\/9776"}],"wp:attachment":[{"href":"https:\/\/www.swisswuff.ch\/tech\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=9769"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.swisswuff.ch\/tech\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=9769"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.swisswuff.ch\/tech\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=9769"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}