{"id":6550,"date":"2026-10-12T15:38:29","date_gmt":"2026-10-12T20:38:29","guid":{"rendered":"https:\/\/www.summet.com\/blog\/?p=6550"},"modified":"2026-10-17T18:28:28","modified_gmt":"2026-10-17T23:28:28","slug":"upgrading-a-dobsonian-push-to-rockerbox-telescope-to-automated-goto-and-tracking-control-with-onstepx","status":"publish","type":"post","link":"https:\/\/www.summet.com\/blog\/2026\/10\/12\/upgrading-a-dobsonian-push-to-rockerbox-telescope-to-automated-goto-and-tracking-control-with-onstepx\/","title":{"rendered":"Upgrading a Dobsonian &#8220;Push To&#8221; Rockerbox telescope to automated GOTO and Tracking control with OnStepX"},"content":{"rendered":"<p><a href=\"https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/telescope-on-patio-dawn.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large wp-image-6551\" src=\"https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/telescope-on-patio-dawn-1024x576.jpg\" alt=\"\" width=\"584\" height=\"329\" srcset=\"https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/telescope-on-patio-dawn-1024x576.jpg 1024w, https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/telescope-on-patio-dawn-300x169.jpg 300w, https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/telescope-on-patio-dawn-768x432.jpg 768w, https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/telescope-on-patio-dawn-1536x864.jpg 1536w, https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/telescope-on-patio-dawn-500x281.jpg 500w, https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/telescope-on-patio-dawn.jpg 1920w\" sizes=\"auto, (max-width: 584px) 100vw, 584px\" \/><\/a><\/p>\n<p>Overview and results video:<br \/>\n<iframe loading=\"lazy\" title=\"YouTube video player\" src=\"https:\/\/www.youtube-nocookie.com\/embed\/jEngt_vnxrw?si=OmX8NRENR4OUjwcG\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p>I have upgraded a used <a href=\"https:\/\/www.youtube.com\/watch?v=0RBxM5YcVr0\">Odyssey 1<\/a> Dobsonian telescope (Rockerbox design with teflon bearings that the user would manually push around for visual observation) to be automated using stepper motors controlled by the OnStepX software running on a Fysetc E4 controller board.<\/p>\n<p><a href=\"https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/ALT-OTA-pulley-belt.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-6552\" src=\"https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/ALT-OTA-pulley-belt-300x170.jpg\" alt=\"\" width=\"300\" height=\"170\" srcset=\"https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/ALT-OTA-pulley-belt-300x170.jpg 300w, https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/ALT-OTA-pulley-belt-1024x580.jpg 1024w, https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/ALT-OTA-pulley-belt-768x435.jpg 768w, https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/ALT-OTA-pulley-belt-1536x870.jpg 1536w, https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/ALT-OTA-pulley-belt-500x283.jpg 500w, https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/ALT-OTA-pulley-belt.jpg 1920w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a> <a href=\"https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/AZ-motor-mount.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-6553\" src=\"https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/AZ-motor-mount-300x170.jpg\" alt=\"\" width=\"300\" height=\"170\" srcset=\"https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/AZ-motor-mount-300x170.jpg 300w, https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/AZ-motor-mount-1024x580.jpg 1024w, https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/AZ-motor-mount-768x435.jpg 768w, https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/AZ-motor-mount-1536x870.jpg 1536w, https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/AZ-motor-mount-500x283.jpg 500w, https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/AZ-motor-mount.jpg 1920w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a> <a href=\"https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/roller-bearing.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-6554\" src=\"https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/roller-bearing-300x170.jpg\" alt=\"\" width=\"300\" height=\"170\" srcset=\"https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/roller-bearing-300x170.jpg 300w, https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/roller-bearing-1024x580.jpg 1024w, https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/roller-bearing-768x435.jpg 768w, https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/roller-bearing-1536x870.jpg 1536w, https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/roller-bearing-500x283.jpg 500w, https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/roller-bearing.jpg 1920w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a> <a href=\"https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/Alt-motor-mount-cam-system.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-medium wp-image-6555\" src=\"https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/Alt-motor-mount-cam-system-300x170.jpg\" alt=\"\" width=\"300\" height=\"170\" srcset=\"https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/Alt-motor-mount-cam-system-300x170.jpg 300w, https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/Alt-motor-mount-cam-system-1024x580.jpg 1024w, https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/Alt-motor-mount-cam-system-768x435.jpg 768w, https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/Alt-motor-mount-cam-system-1536x870.jpg 1536w, https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/Alt-motor-mount-cam-system-500x283.jpg 500w, https:\/\/www.summet.com\/blog\/wp-content\/uploads\/2026\/10\/Alt-motor-mount-cam-system.jpg 1905w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>If you want to follow along with the whole procedure, I&#8217;ve documented most of it in a series of videos on YouTube.\u00a0 <!--more--><\/p>\n<h1>Software<\/h1>\n<p>Flashing the Firmware on the Fysetc E4 board (<a href=\"http:\/\/wiki.fysetc.com\/docs\/E4\"> http:\/\/wiki.fysetc.com\/docs\/E4<\/a> )<br \/>\n<iframe loading=\"lazy\" title=\"YouTube video player\" src=\"https:\/\/www.youtube-nocookie.com\/embed\/SbFubhRVVyc?si=1hVTyj6v8tSybjHl\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p>OnStep Wiki: <a href=\"https:\/\/onstep.groups.io\/g\/main\/wiki\/32747\">https:\/\/onstep.groups.io\/g\/main\/wiki\/32747<\/a><br \/>\nOnStepX Wiki: <a href=\"https:\/\/onstep.groups.io\/g\/main\/wiki\/32794\">https:\/\/onstep.groups.io\/g\/main\/wiki\/32794<\/a><\/p>\n<p>Using the smart web server plugin for configuration and stepper motor testing:<br \/>\n<iframe loading=\"lazy\" title=\"YouTube video player\" src=\"https:\/\/www.youtube-nocookie.com\/embed\/37-IuyJCnCk?si=NkhTRBvn0UCadp6S\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<h1>Mechanical:<\/h1>\n<p>Replacing the original rockerbox 3 Teflon supports riding on a piece of laminate with a <a href=\"https:\/\/amzn.to\/4c5gX7B\">Lazy Susan<\/a> bearing.<\/p>\n<p><iframe loading=\"lazy\" title=\"YouTube video player\" src=\"https:\/\/www.youtube-nocookie.com\/embed\/bRStBeopge8?si=QeoP1Pot-WlJhQYo\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p>The &#8220;lowest effort&#8221; Az motor holder (L-bracket, strap hinge, 2&#215;4 &amp; spring).<br \/>\nI&#8217;m using a 10:1 Planetary Gearbox stepper motor with a pulley and o-ring as a wheel to drive directly against the outside edge of the Lazy Susan bearing.<br \/>\n<iframe loading=\"lazy\" title=\"YouTube video player\" src=\"https:\/\/www.youtube-nocookie.com\/embed\/ooq6zr5Oblk?si=_U--UAJz-0mTJPhS\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><br \/>\n(This mount actually works just fine, but I eventually replaced it with a 3D printed one that takes up less space and looks slicker.)<\/p>\n<p>A 3D printed motor mount for the Azimuth axis that uses spring tension.<br \/>\n<a href=\"https:\/\/www.printables.com\/model\/1879682\">https:\/\/www.printables.com\/model\/1879682<\/a><\/p>\n<p><iframe loading=\"lazy\" title=\"YouTube video player\" src=\"https:\/\/www.youtube-nocookie.com\/embed\/mtChUHNuSJo?si=aWaw127AyJgrs3wA\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p>I have been very happy with the AZ axis drive system. The super simple direct drive wheel on the Lazy-Susan bearing has about 21 arc-seconds of backlash (much better than the belt drive system for the ALT axis, which is measured in arc-minutes).<\/p>\n<p>For the Altitude axis, I designed a 3D printed gear (that includes a handle) that screws onto the optical tube assembly with 240 teeth (GT2 timing belt, 6mm wide) and am using a 40 tooth 8mm bore pulley on a 100:1 Planetary gearbox stepper motor held in a 3D printed &#8220;cam action&#8221; tension adjusting motor mount.<\/p>\n<p>&nbsp;<\/p>\n<p><iframe loading=\"lazy\" title=\"YouTube video player\" src=\"https:\/\/www.youtube-nocookie.com\/embed\/mI2CHt18gsA?si=Xs7cpaI4gegzH5VY\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p>ALT OTA Pulley w\/ Handle 3D model &amp; STL file:<a href=\"https:\/\/www.printables.com\/model\/1879682\"> https:\/\/www.printables.com\/model\/1879682<\/a><\/p>\n<p>I&#8217;m proud of the cam action belt tension adjustment motor mount that I designed, as it is a clean and elegant solution to mounting the stepper motor pulley and also being able to adjust the tension on the belt drive. You can see the 1 minute short into here:<br \/>\n<a href=\"https:\/\/youtube.com\/shorts\/MmHQwkkMlJ8\">https:\/\/youtube.com\/shorts\/Mmhttps:\/\/youtube.com\/shorts\/MmHQwkkMlJ8HQwkkMlJ8<\/a><\/p>\n<p>ALT Motor Mount &amp; Belt Tensioning system 3D Models &amp; STL file: <a href=\"https:\/\/www.printables.com\/model\/1879723\">https:\/\/www.printables.com\/model\/1879723<\/a><\/p>\n<p>The Alt axis was very &#8220;jerky&#8221; as the pulley belt drive system was fighting friction of the traditional Dobsonian bearing system, so I added 3D printed roller bearings to make the OTA much easier to rotate.<\/p>\n<p>Roller Bearings 3D Model &amp; STL Files: <a href=\"https:\/\/www.printables.com\/model\/1879797\">https:\/\/www.printables.com\/model\/1879797<\/a><\/p>\n<p><iframe loading=\"lazy\" title=\"YouTube video player\" src=\"https:\/\/www.youtube-nocookie.com\/embed\/wLwZR8chJBs?si=5xKK64FNzJNGuVPA\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p>I added limit switches to my ALT axis so that if the OnStepX controller gets confused about where it is the stepper motor won&#8217;t drive the OTA into the rockerbox (by going below -4 degrees or above 90 degrees).\u00a0 The default E4 board firmware from the web flasher has all emergency stop \/ limit switches tied to the X-min plug, so I bought a JST HX 2.54mm (0.1in) 2pin plug and soldered two switches to it in parallel. I found a place to mount them orthogonality in a single 3D printed mounting block such that one switch its triggered at each end of the OTA&#8217;s range. Unfortunately, I can&#8217;t use them as Y-axis homing switches without editing the config.h file for the firmware and compiling it myself, but they do protect my ALT axis. [The OnStepX software does a good job of respecting software limits, but as my OTA is removed and re-installed every time I set up the telescope, having hardware limit switches is a good backup.] My AZ axis can rotate 360 degrees without any cord wrap (as I&#8217;m using a battery within the rockerbox to power the system) so I don&#8217;t need a limit switch for it.<\/p>\n<p>Limit switch mounting block model &amp; STL files: <a href=\"https:\/\/www.printables.com\/model\/1878136\">https:\/\/www.printables.com\/model\/1878136<\/a><\/p>\n<p><iframe loading=\"lazy\" title=\"YouTube video player\" src=\"https:\/\/www.youtube-nocookie.com\/embed\/kFDUgOedaKw?si=jDQQN4Ek62NXrBl1\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p>&nbsp;<\/p>\n<h1>Software Calibration<\/h1>\n<p>You then have to calibrate the software with the correct steps per degrees, which is relatively easy if you are using a set of pulleys with a known tooth count ratio (240 : 40) but if you are using a random lazy-susan bearing and a wheel you made yourself with a pulley and an o-ring you may need to experimentally determine how many steps it takes to make a full revolution of your telescope.<br \/>\n<iframe loading=\"lazy\" title=\"YouTube video player\" src=\"https:\/\/www.youtube-nocookie.com\/embed\/Qfqytba19uE?si=av_pQ8vrgLuD0mkF\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p>The results (the ability to GOTO using my SkySafari 8 app and tracking to keep objects in the eyepiece for multiple minutes (visual observation only, not trying to do any astrophotogrpahy) are all that I had hoped for.<\/p>\n<p>I also calculated the backlash in each of my axis ( 21 arc-seconds for the AZ axis, and 18 arc-MINUTES for the long belt driven ALT axis). Configuring the backlash in the OnStepX software isn&#8217;t strictly necessary for guiding, but can make GOTO and manual skewing a bit more accurate.<\/p>\n<p><iframe loading=\"lazy\" title=\"YouTube video player\" src=\"https:\/\/www.youtube-nocookie.com\/embed\/VD5qKCpO3uc?si=zgs9C-XC6uZeliNH\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<h1>Bill of Materials (parts used &amp; costs):<\/h1>\n<ul>\n<li>16&#8243; (400mm) <a href=\"https:\/\/amzn.to\/4c5gX7B\">Lazy Susan bearing<\/a>\u00a0 \u00a0for Az axis $35<\/li>\n<li>8x <a href=\"https:\/\/link.amazon\/B02XMIa3S\">608zz bearings<\/a> (Alt Rollers)\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 $8<\/li>\n<li><a href=\"https:\/\/www.fysetc.com\/products\/e4-board-built-in-wi-fi-bluetooth-4-pcs-tmc2209-240mhz-16m-flash?variant=37558333341871\">FYSETC E4 Controller Board<\/a>\u00a0 \u00a0 (No-Wifi [antenna] = internal Wifi variant)\u00a0 $ 31.80<\/li>\n<li>Stepper Motor plugs for FYSETC E4 board: JST XH2.54 4-pin\u00a0 5 pack\u00a0 [<a href=\"https:\/\/www.ebay.com\/itm\/297748384427?var=595048836730\">Ebay: dream-shop7<\/a>]\u00a0 $10.25<\/li>\n<li>Limit Switch plugs for FYSETC E4 board: <a href=\"https:\/\/link.amazon\/B03wUqxJg\">JST XH2.54 2-pin\u00a0 20-pack<\/a>\u00a0 $6.99<\/li>\n<li>10:1 Planetary Gearbox Nema 17 Stepper Motor for Az Axis <a href=\"https:\/\/www.omc-stepperonline.com\/nema-17-stepper-motor-l-40mm-gear-ratio-10-1-mg-series-planetary-gearbox-17hs15-1584s-mg10\">17HS15-1584S-MG10<\/a>\u00a0 $27.50<\/li>\n<li>100:1 Planetary Gearbox Nema 17 Stepper Motor for Alt Axis <a href=\"https:\/\/www.omc-stepperonline.com\/nema-17-stepper-motor-l-40mm-gear-ratio-100-1-mg-series-planetary-gearbox-17hs15-1584s-mg100\">17HS15-1584S-MG100<\/a>\u00a0 $33.65<\/li>\n<li>31mm OD <a href=\"https:\/\/link.amazon\/B02nKuMA4\">V-Groove pulley with 8mm bore<\/a> (Az Axis wheel) $10<\/li>\n<li>o-ring AZ Axis &#8220;tire&#8221; (21mm ID, 31mm OD, 5mm thick, Buna-70) [<a href=\"https:\/\/www.ebay.com\/itm\/297543333197\">Ebay:swint101<\/a>]\u00a0 \u00a0$10.31<\/li>\n<li>(Note: Instead of using a V-Groove pulley and O-Ring for tire, you can purchase a Knurled Polyurethane Roller that is designed for the job, but it may take a month to arrive from China, or be very expensive if you purchase it from McMaster. 8mm (bore) 30mm OD, 18mm (total height). I bought this one, but haven&#8217;t tested it yet: https:\/\/www.ebay.com\/itm\/389642609342?var=656943903999 )<\/li>\n<li>2pcs Extension springs (<a href=\"https:\/\/link.amazon\/B0fLau61N\">0.08&#8243; x 1&#8243; x 7&#8243; 304 stainless<\/a>)\u00a0 (for tension on the AZ axis)\u00a0 $16.99<\/li>\n<li><a href=\"https:\/\/link.amazon\/B000ZjBoG\">40 tooth 8mm bore GT2 timing belt pulley<\/a> (6mm width) Alt Motor\u00a0 $12.98<\/li>\n<li>GT2 6mm wide timing belt. Your length may vary <a href=\"https:\/\/link.amazon\/B044ATHYh\">1350mm<\/a> is a common one and easy to find, I used <a href=\"https:\/\/link.amazon\/B04naKtsr\">1524mm<\/a> belts because that was what fit my telescope box best.\u00a0 $14.89<\/li>\n<li><a href=\"https:\/\/link.amazon\/B095S2BAM\">12 volt 15Ah LiIon battery<\/a> to power the system and prevent cord-wrap. (Note that you could probably get away with a 5 or 10 Ah instead of this 15 Ah battery depending upon how long you intend to use your telescope. Or you could substitute a much cheaper 12v power supply and an extension cord.) 45.99<\/li>\n<li><a href=\"https:\/\/link.amazon\/B00IKCe2F\">Power switch<\/a>\u00a0 (or substitute with any switch you have on hand) $6.89<\/li>\n<\/ul>\n<p>Total cost (not including many random screws I used which I already had on hand): $253.24<\/p>\n<p>This isn&#8217;t an unreasonable cost to automate a telescope, but it doesn&#8217;t include the time investment, so I definitely recommend you buy an off the shelf kit if one is available.\u00a0 In my case, I had paid $200 for the used telescope, so I&#8217;ve more than doubled it&#8217;s cost.<\/p>\n<p>As these experimental projects go, I purchased many things that I didn&#8217;t end up using, [I have a large collection of GT2 pulleys and belts, o-rings of various sizes, 5mm bore hardware I ended up not using with a non-gearbox NEMA 17 stepper, etc&#8230;.] but if you are buying the stepper online steppers I recommend above, I also suggest you buy a matching set of brackets in the same order to combine shipping, even if you are planning on using 3D printed brackets, it&#8217;s nice to have the metal L-brackets on-hand that match\u00a0 your motors.<\/p>\n<ul>\n<li>Nema 17 Bracket for High Precision Planetary Geared Motor Alloy Steel Bracket\u00a0 <a href=\"https:\/\/www.omc-stepperonline.com\/nema-17-bracket-for-high-precision-planetary-geared-motor-alloy-steel-bracket-st-m8\">ST-M8<\/a>\u00a0 $2.29<\/li>\n<\/ul>\n<p>Tools that are going to significantly add to your costs if you don&#8217;t already have them:<\/p>\n<ol>\n<li>3D printer ($500-$1000) for the large 240 tooth gears sized for your OTA, and misc motor mounts, battery mount, etc&#8230; Depending upon your telescope model, you may be able to find somebody selling a pre-printed gear designed specifically for it.<\/li>\n<li>Drill &amp; bits (cutting holes, driving screws, etc)<\/li>\n<li>Hole Saws to cut the holes for mounting the roller bearings and Alt motor mount cam action system, I used 1.5&#8243; (roller bearings)\u00a0 and 2.5&#8243; hole saws (ALT stepper mount).<\/li>\n<li>Saws (hand or powered) [To cut a slot for the Az motor mount]<\/li>\n<\/ol>\n<p><span hidden class=\"__iawmlf-post-loop-links\" data-iawmlf-links=\"[{&quot;id&quot;:726,&quot;href&quot;:&quot;https:\\\/\\\/www.youtube.com\\\/watch?v=0RBxM5YcVr0&quot;,&quot;archived_href&quot;:&quot;https:\\\/\\\/web-wp.archive.org\\\/web\\\/20261012204104\\\/https:\\\/\\\/www.youtube.com\\\/watch?v=0RBxM5YcVr0&quot;,&quot;redirect_href&quot;:&quot;&quot;,&quot;checks&quot;:[{&quot;date&quot;:&quot;2026-10-12 21:59:30&quot;,&quot;http_code&quot;:206},{&quot;date&quot;:&quot;2026-10-16 02:51:08&quot;,&quot;http_code&quot;:206}],&quot;broken&quot;:false,&quot;last_checked&quot;:{&quot;date&quot;:&quot;2026-10-16 02:51:08&quot;,&quot;http_code&quot;:206},&quot;process&quot;:&quot;done&quot;},{&quot;id&quot;:727,&quot;href&quot;:&quot;http:\\\/\\\/wiki.fysetc.com\\\/docs\\\/E4&quot;,&quot;archived_href&quot;:&quot;https:\\\/\\\/web-wp.archive.org\\\/web\\\/20260430045108\\\/https:\\\/\\\/wiki.fysetc.com\\\/docs\\\/E4&quot;,&quot;redirect_href&quot;:&quot;&quot;,&quot;checks&quot;:[{&quot;date&quot;:&quot;2026-10-12 20:38:43&quot;,&quot;http_code&quot;:200},{&quot;date&quot;:&quot;2026-10-16 19:51:20&quot;,&quot;http_code&quot;:200}],&quot;broken&quot;:false,&quot;last_checked&quot;:{&quot;date&quot;:&quot;2026-10-16 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