{"id":8482,"date":"2024-01-12T12:29:58","date_gmt":"2024-01-12T12:29:58","guid":{"rendered":"https:\/\/purplemeanie.co.uk\/?p=8482"},"modified":"2025-01-31T13:05:01","modified_gmt":"2025-01-31T13:05:01","slug":"pmsm-motor-internals-video","status":"publish","type":"post","link":"https:\/\/purplemeanie.co.uk\/index.php\/2024\/01\/12\/pmsm-motor-internals-video\/","title":{"rendered":"PMSM Motor Internals Video"},"content":{"rendered":"\n<p>As part of a larger explainer video I wanted to show how a Permanent Magnet Synchronous Motor Works.<\/p>\n\n\n\n<p>I wanted to show how the stator and rotor interacted with their respective magnetic fields and currents.<\/p>\n\n\n\n<p>The video shows how a simplified motor is constructed with a Stator and Rotor and then breaks those down to show their respective magnetic fields.<\/p>\n\n\n\n<p>You can find the YouTube Short here:<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Animated Permanent Magnet Synchronous Motor\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/N4XISKKEzmM?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p><a href=\"https:\/\/youtube.com\/shorts\/N4XISKKEzmM\">https:\/\/youtube.com\/shorts\/N4XISKKEzmM<\/a><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Realism?<\/h2>\n\n\n\n<p>In reality this motor wouldn&#8217;t work, it&#8217;s just a simplified model to show concepts. A real motor would have multiple stator windings (coils) per phase and there would be more than two poles to the rotor (more magnets spaced around the rotor rim). <\/p>\n\n\n\n<p>I&#8217;ve also not gone into how the phase offset between stator magnetic fields and rotor fields would determine torque &#8211; I may do that as a more in-depth video at some point.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">TLDR;<\/h2>\n\n\n\n<p>The &#8220;Too Long Don&#8217;t Read&#8221; of this project is:<\/p>\n<ul>\n<li>3D Model Created in Blender<\/li>\n<li>Models imported to Final Cut Pro<\/li>\n<li>Square, Vertical and Horizontal Projects exported<\/li>\n<li>Vertical uploaded to Instagram, Facebook and YouTube Shorts<\/li>\n<\/ul>\n\n\n\n<p>The Blender file looks like this&#8230;<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"2048\" height=\"1284\" data-attachment-id=\"8484\" data-permalink=\"https:\/\/purplemeanie.co.uk\/index.php\/2024\/01\/12\/pmsm-motor-internals-video\/motor-internals-blender-screenshot-2024-01-12-at-11-56-51\/\" data-orig-file=\"https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/01\/Motor-Internals-Blender-Screenshot-2024-01-12-at-11.56.51.png\" data-orig-size=\"3854,2416\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Motor-Internals-Blender-Screenshot-2024-01-12-at-11.56.51\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/01\/Motor-Internals-Blender-Screenshot-2024-01-12-at-11.56.51-2048x1284.png\" src=\"https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/01\/Motor-Internals-Blender-Screenshot-2024-01-12-at-11.56.51-2048x1284.png\" alt=\"\" class=\"wp-image-8484\" srcset=\"https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/01\/Motor-Internals-Blender-Screenshot-2024-01-12-at-11.56.51-2048x1284.png 2048w, https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/01\/Motor-Internals-Blender-Screenshot-2024-01-12-at-11.56.51-600x376.png 600w, https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/01\/Motor-Internals-Blender-Screenshot-2024-01-12-at-11.56.51-768x481.png 768w, https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/01\/Motor-Internals-Blender-Screenshot-2024-01-12-at-11.56.51-1536x963.png 1536w\" sizes=\"auto, (max-width: 2048px) 100vw, 2048px\" \/><figcaption class=\"wp-element-caption\">Permanent Magnet Synchronous Motor Blender Animation File<\/figcaption><\/figure>\n\n\n\n<p>Most of the work for this animation is done in Blender, with Final Cut Pro just doing the compositing (I really should learn how to do that in Blender).<\/p>\n\n\n\n<p>The bulk of that Blender work was in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Animating the &#8220;blobs&#8221; that show stator winding current flow (Geometry Nodes, see image below)<\/li>\n\n\n\n<li>Stator winding magnetic field animation (Geometry Nodes)<\/li>\n\n\n\n<li>Force vectors showing Stator magnetic field to Rotor permanent magnet field (Geometry Nodes)<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Stator Currents<\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"2048\" height=\"871\" data-attachment-id=\"8491\" data-permalink=\"https:\/\/purplemeanie.co.uk\/index.php\/2024\/01\/12\/pmsm-motor-internals-video\/stator-currents-gn\/\" data-orig-file=\"https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/01\/Stator-Currents-GN.png\" data-orig-size=\"4217,1793\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Stator-Currents-GN\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/01\/Stator-Currents-GN-2048x871.png\" src=\"https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/01\/Stator-Currents-GN-2048x871.png\" alt=\"\" class=\"wp-image-8491\" srcset=\"https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/01\/Stator-Currents-GN-2048x871.png 2048w, https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/01\/Stator-Currents-GN-600x255.png 600w, https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/01\/Stator-Currents-GN-768x327.png 768w, https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/01\/Stator-Currents-GN-1536x653.png 1536w\" sizes=\"auto, (max-width: 2048px) 100vw, 2048px\" \/><\/figure>\n\n\n\n<p>This Geometry Nodes setup is based on one I&#8217;ve used before. There are probably way better ways of doing this but the basic concept is to:<\/p>\n<ul>\n<li>Resample a curve and assign it a number of &#8220;slots&#8221;. This is the total number of positions that a blob can appear at.<\/li>\n<li>Then work out which slots should have a blob for any given frame<\/li>\n<li>For this animation I used the new Simulation Nodes concept to add\/subtract movement of the blobs per frame, which allowed for a smoother animation as the speed of the current changes over time.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Stator Magnetic Field<\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"2048\" height=\"816\" data-attachment-id=\"8492\" data-permalink=\"https:\/\/purplemeanie.co.uk\/index.php\/2024\/01\/12\/pmsm-motor-internals-video\/stator-mag-fields-gn\/\" data-orig-file=\"https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/01\/Stator-Mag-Fields-GN.png\" data-orig-size=\"2918,1162\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Stator-Mag-Fields-GN\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/01\/Stator-Mag-Fields-GN-2048x816.png\" src=\"https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/01\/Stator-Mag-Fields-GN-2048x816.png\" alt=\"\" class=\"wp-image-8492\" srcset=\"https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/01\/Stator-Mag-Fields-GN-2048x816.png 2048w, https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/01\/Stator-Mag-Fields-GN-600x239.png 600w, https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/01\/Stator-Mag-Fields-GN-768x306.png 768w, https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/01\/Stator-Mag-Fields-GN-1536x612.png 1536w\" sizes=\"auto, (max-width: 2048px) 100vw, 2048px\" \/><\/figure>\n\n\n\n<p>Simple Geometry Nodes map to take the Rotor angle and map it to the scale of the Stator Magnetic Field mesh. The mesh was modelled by hand.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Force Vectors<\/h3>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"2048\" height=\"998\" data-attachment-id=\"8493\" data-permalink=\"https:\/\/purplemeanie.co.uk\/index.php\/2024\/01\/12\/pmsm-motor-internals-video\/force-vectors-gn\/\" data-orig-file=\"https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/01\/Force-Vectors-GN.png\" data-orig-size=\"4060,1978\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"Force-Vectors-GN\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/01\/Force-Vectors-GN-2048x998.png\" src=\"https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/01\/Force-Vectors-GN-2048x998.png\" alt=\"\" class=\"wp-image-8493\" srcset=\"https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/01\/Force-Vectors-GN-2048x998.png 2048w, https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/01\/Force-Vectors-GN-600x292.png 600w, https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/01\/Force-Vectors-GN-768x374.png 768w, https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/01\/Force-Vectors-GN-1536x748.png 1536w\" sizes=\"auto, (max-width: 2048px) 100vw, 2048px\" \/><\/figure>\n\n\n\n<p>This one was tricky. The Geometry Node setup use a bunch of empties.<\/p>\n<ul>\n<li>Three empties placed in the middle of the stator coils<\/li>\n<li>Two empties placed in the middle of the rotor magnets, parented to the rotor<\/li>\n<li>The GN setup then works out the distance between the stator empties and the rotor empties, and creates vectors between the empties.<\/li>\n<li>Straight line &#8220;Curves&#8221; are instanced on the vectors centre point (index 1 or 0,1,2)<\/li>\n<li>Lines are then instanced at the centre of the vectors and thickness applied.<\/li>\n<\/ul>\n<p>I also created a version of these force vectors with arrows at the end of each vector. But&#8230;. that really needed the arrows to point in the force direction and I was out of time to figure out how that could work. And of course it would be good to colour code the forces directionality too.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>As part of a larger explainer video I wanted to show how a Permanent Magnet Synchronous Motor Works. I wanted to show how the stator and rotor interacted with their respective magnetic fields and currents. The video shows how a simplified motor is constructed with a Stator and Rotor and then breaks those down to [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":8499,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"advanced_seo_description":"","jetpack_seo_html_title":"","jetpack_seo_noindex":false,"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"New Blog Post about how I created this Motor Animation.\n#Blender #FinalCutPro #PuttingTheEVInSeven","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":false,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[51,38,26],"tags":[],"class_list":["post-8482","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-caterham-blog","category-electric-vehicles","category-youtube"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/01\/PMSM-Internals-Header.png","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p8yl38-2cO","jetpack-related-posts":[{"id":8552,"url":"https:\/\/purplemeanie.co.uk\/index.php\/2024\/03\/03\/electric-vehicle-components-youtube-ptevis-2-2\/","url_meta":{"origin":8482,"position":0},"title":"ELECTRIC VEHICLE COMPONENTS &#8211; YOUTUBE PTEVIS 2.2","author":"John Martin","date":"March 3, 2024","format":false,"excerpt":"https:\/\/youtu.be\/fSu9B_tW3zM What's in an Electric Vehicle - PTEVIS Part 2.2 This is the second of two explainer videos I\u2019ve created to help YouTube viewers understand the concepts, terminology and physics of what\u2019s going on in my Caterham Seven EV conversion. I\u2019ve made these two videos so I can refer back\u2026","rel":"","context":"In &quot;Caterham Blog&quot;","block_context":{"text":"Caterham Blog","link":"https:\/\/purplemeanie.co.uk\/index.php\/category\/caterham-blog\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/03\/PTEVIS-2-2.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/03\/PTEVIS-2-2.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/03\/PTEVIS-2-2.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/03\/PTEVIS-2-2.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/03\/PTEVIS-2-2.jpg?resize=1050%2C600&ssl=1 3x"},"classes":[]},{"id":8548,"url":"https:\/\/purplemeanie.co.uk\/index.php\/2024\/02\/25\/the-electric-in-electric-vehicles-youtube-ptevis-2-1\/","url_meta":{"origin":8482,"position":1},"title":"The Electric in Electric Vehicles &#8211; YOUTUBE PTEVIS 2.1","author":"John Martin","date":"February 25, 2024","format":false,"excerpt":"https:\/\/youtu.be\/LEBzMDAg6gE The Electric in Electric Vehicles This is the first of two explainer videos I\u2019ve created to help YouTube viewers understand the concepts, terminology and physics of what\u2019s going on in my Caterham Seven EV conversion. I\u2019ve made the videos so I don\u2019t need to keep explaining each concept every\u2026","rel":"","context":"In &quot;Caterham Blog&quot;","block_context":{"text":"Caterham Blog","link":"https:\/\/purplemeanie.co.uk\/index.php\/category\/caterham-blog\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/03\/PTEVIS2.1-002-scaled.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/03\/PTEVIS2.1-002-scaled.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/03\/PTEVIS2.1-002-scaled.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/03\/PTEVIS2.1-002-scaled.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/03\/PTEVIS2.1-002-scaled.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2024\/03\/PTEVIS2.1-002-scaled.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":8177,"url":"https:\/\/purplemeanie.co.uk\/index.php\/2022\/12\/09\/seven-tradoffs-and-comparisons\/","url_meta":{"origin":8482,"position":2},"title":"sEVen Tradoffs and Compromises","author":"John Martin","date":"December 9, 2022","format":false,"excerpt":"A cut down version of this post appeared in the December 2022 edition of Lowflying. This full version is a little more wordy but\u00a0contains more detail, images and with hyperlinks. Putting the EV in sEVen - Part 2 : Conversion Tradeoffs With my sEVen conversion car now purchased, I\u2019m well\u2026","rel":"","context":"In &quot;Caterham Blog&quot;","block_context":{"text":"Caterham Blog","link":"https:\/\/purplemeanie.co.uk\/index.php\/category\/caterham-blog\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2022\/12\/Banner.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2022\/12\/Banner.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2022\/12\/Banner.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2022\/12\/Banner.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2022\/12\/Banner.png?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2022\/12\/Banner.png?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":8125,"url":"https:\/\/purplemeanie.co.uk\/index.php\/2022\/09\/30\/seven-index\/","url_meta":{"origin":8482,"position":3},"title":"Putting the EV in sEVen &#8211; Index","author":"John Martin","date":"September 30, 2022","format":false,"excerpt":"In this project we're converting a Caterham Seven Supersport SV from being powered by an Internal Combustion Engine (ICE), into one powered by an electric motor and batteries (BEV - Battery Electric Vehicle) This page is an index of articles relating to Putting the EV in sEVen. You can find\u2026","rel":"","context":"In &quot;Caterham Blog&quot;","block_context":{"text":"Caterham Blog","link":"https:\/\/purplemeanie.co.uk\/index.php\/category\/caterham-blog\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2022\/09\/Cartoon-Seven-Vector-with-EV-Purple-Bumper.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2022\/09\/Cartoon-Seven-Vector-with-EV-Purple-Bumper.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2022\/09\/Cartoon-Seven-Vector-with-EV-Purple-Bumper.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2022\/09\/Cartoon-Seven-Vector-with-EV-Purple-Bumper.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2022\/09\/Cartoon-Seven-Vector-with-EV-Purple-Bumper.png?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2022\/09\/Cartoon-Seven-Vector-with-EV-Purple-Bumper.png?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":11015,"url":"https:\/\/purplemeanie.co.uk\/index.php\/2025\/11\/23\/putting-the-ev-in-seven-two-year-mega-update-video\/","url_meta":{"origin":8482,"position":4},"title":"Putting the EV in Seven &#8211; Two Year Mega Update Video","author":"John Martin","date":"November 23, 2025","format":false,"excerpt":"Well... I finally got to the point where I realized I wasn't going to be able to upload all the videos I'd wanted to. For the whole of my Putting the EV in Seven project, I've been taking video and pictures in order to put together a series of progress\u2026","rel":"","context":"In &quot;Caterham Blog&quot;","block_context":{"text":"Caterham Blog","link":"https:\/\/purplemeanie.co.uk\/index.php\/category\/caterham-blog\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2025\/11\/PTEVIS6-2-Year-002b-scaled.jpg?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2025\/11\/PTEVIS6-2-Year-002b-scaled.jpg?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2025\/11\/PTEVIS6-2-Year-002b-scaled.jpg?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2025\/11\/PTEVIS6-2-Year-002b-scaled.jpg?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2025\/11\/PTEVIS6-2-Year-002b-scaled.jpg?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2025\/11\/PTEVIS6-2-Year-002b-scaled.jpg?resize=1400%2C800&ssl=1 4x"},"classes":[]},{"id":1982,"url":"https:\/\/purplemeanie.co.uk\/index.php\/2018\/06\/17\/the-wiper-motor-fuse-and-test-rig-overkill-with-a-logic-analyzer\/","url_meta":{"origin":8482,"position":5},"title":"The Wiper Motor Fuse&#8230; and Test Rig Overkill with a Logic Analyzer","author":"John Martin","date":"June 17, 2018","format":false,"excerpt":"Drip, drip, drop, click, bugger! ... or in other words... rain... followed by another wiper fuse blowing. The Story So Far: For those of you that need a recap, I\u2019d tested the wipers in December, prior to the IVA (Individual Vehicle Approval) test, and they had also been tested by\u2026","rel":"","context":"In &quot;Caterham Blog&quot;","block_context":{"text":"Caterham Blog","link":"https:\/\/purplemeanie.co.uk\/index.php\/category\/caterham-blog\/"},"img":{"alt_text":"","src":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2018\/06\/Driving-to-the-IVA-test-in-the-rain-with-Scope-Trace.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2018\/06\/Driving-to-the-IVA-test-in-the-rain-with-Scope-Trace.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2018\/06\/Driving-to-the-IVA-test-in-the-rain-with-Scope-Trace.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2018\/06\/Driving-to-the-IVA-test-in-the-rain-with-Scope-Trace.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2018\/06\/Driving-to-the-IVA-test-in-the-rain-with-Scope-Trace.png?resize=1050%2C600&ssl=1 3x"},"classes":[]}],"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/posts\/8482","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/comments?post=8482"}],"version-history":[{"count":6,"href":"https:\/\/purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/posts\/8482\/revisions"}],"predecessor-version":[{"id":8496,"href":"https:\/\/purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/posts\/8482\/revisions\/8496"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/media\/8499"}],"wp:attachment":[{"href":"https:\/\/purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/media?parent=8482"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/categories?post=8482"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/purplemeanie.co.uk\/index.php\/wp-json\/wp\/v2\/tags?post=8482"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}