{"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_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_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},"jetpack_post_was_ever_published":false},"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":"Second Project sEVen electric-vehicle explainer covering the major EV conversion components, including battery, motor controller, low-voltage systems, charging, and supporting electronics.","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":"First Project sEVen electric-vehicle explainer covering core EV terminology, high-voltage and low-voltage systems, batteries, motors, and controllers for the Caterham conversion.","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":"Project sEVen is the electric conversion thread for the Caterham, covering mechanical packaging, EV power electronics, CAN bus diagnostics, 3D scanning, CAD references, and systems integration.","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":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":4},"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":[]},{"id":8262,"url":"https:\/\/purplemeanie.co.uk\/index.php\/2023\/03\/21\/putting-the-ev-in-seven-lowflying-part-3-ev-bits-and-pieces\/","url_meta":{"origin":8482,"position":5},"title":"Putting the EV in sEVen &#8211; Lowflying part 3 : EV Bits and Pieces","author":"John Martin","date":"March 21, 2023","format":false,"excerpt":"This article first appeared in the February edition of the Caterham and Lotus Seven Club's Lowflying magazine. I also created an animated overview of all of this in this video below: https:\/\/youtu.be\/8tDo6ezOMu0 What's in an EV Conversion A more detailed version of this video will be coming soon. And here's\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\/2023\/03\/Test-Cycles-250W-with-Lineart-Exp-0.25-Gamma-1.4.png?resize=350%2C200&ssl=1","width":350,"height":200,"srcset":"https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2023\/03\/Test-Cycles-250W-with-Lineart-Exp-0.25-Gamma-1.4.png?resize=350%2C200&ssl=1 1x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2023\/03\/Test-Cycles-250W-with-Lineart-Exp-0.25-Gamma-1.4.png?resize=525%2C300&ssl=1 1.5x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2023\/03\/Test-Cycles-250W-with-Lineart-Exp-0.25-Gamma-1.4.png?resize=700%2C400&ssl=1 2x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2023\/03\/Test-Cycles-250W-with-Lineart-Exp-0.25-Gamma-1.4.png?resize=1050%2C600&ssl=1 3x, https:\/\/i0.wp.com\/purplemeanie.co.uk\/wp-content\/uploads\/2023\/03\/Test-Cycles-250W-with-Lineart-Exp-0.25-Gamma-1.4.png?resize=1400%2C800&ssl=1 4x"},"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}]}}