{"id":382,"date":"2021-07-04T12:55:08","date_gmt":"2021-07-04T12:55:08","guid":{"rendered":"http:\/\/www.emtronics.co.uk\/wp_blog\/?p=382"},"modified":"2021-07-07T17:17:40","modified_gmt":"2021-07-07T17:17:40","slug":"taig-mill-1kw-motor-upgrade","status":"publish","type":"post","link":"http:\/\/www.emtronics.co.uk\/wp_blog\/?p=382","title":{"rendered":"Taig Mill 1KW motor upgrade"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"455\" src=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/mill_motor-1024x455.png\" alt=\"\" class=\"wp-image-383\" srcset=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/mill_motor-1024x455.png 1024w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/mill_motor-300x133.png 300w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/mill_motor-768x341.png 768w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/mill_motor.png 1350w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>The Taig milling machine comes with a 1\/4HP (186 Watts) motor. This motor works great with the machine and I have used it for about a year with not much trouble. However I wanted to upgrade the motor to try and fix a few small annoyances:<br><br>*  The motor is designed for a 110v 60HZ supply, in the UK we have 240v 50HZ so I need to use a 240v to 110v transformer. This reduces voltage but does not change the supply frequency. This means the motor runs at the wrong speed and does not run optimally. I believe this is why it is quite noisy and also gets EXTREMELY hot (so hot it can not be touch) when being run for a while.<br><br>* To change speed you need to move the belt to a different pully. This doesn&#8217;t take a particularly long time but it is quite frustrating when it is continually being changed. Every time it is changed there is also a possibility for error (too loose, too tight, unaligned pullies etc) so it adds some risk.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-style-default\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"725\" src=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-12.png\" alt=\"\" class=\"wp-image-405\" srcset=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-12.png 1000w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-12-300x218.png 300w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-12-768x557.png 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\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=\"Taig 1WK motor upgrade\" width=\"640\" height=\"360\" src=\"https:\/\/www.youtube.com\/embed\/D3aF6ZV-MzQ?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<h2 class=\"wp-block-heading\">New motor<\/h2>\n\n\n\n<p>On ebay I found a 1KW brushless DC motor for \u00a3229. It comes with all cables and power control box. 1KW is over powered but it means I can have good power at low speeds.<\/p>\n\n\n\n<p>This is the ebay link (working as of June 2021)<br><a href=\"https:\/\/www.ebay.co.uk\/itm\/274036520956?ssPageName=STRK%3AMEBIDX%3AIT&amp;_trksid=p2060353.m1438.l2649\">https:\/\/www.ebay.co.uk\/itm\/274036520956?ssPageName=STRK%3AMEBIDX%3AIT&amp;_trksid=p2060353.m1438.l2649<\/a><br><\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"513\" src=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-1024x513.png\" alt=\"\" class=\"wp-image-385\" srcset=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-1024x513.png 1024w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-300x150.png 300w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-768x384.png 768w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-1536x769.png 1536w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image.png 1538w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\"><li>1KW maximum power<\/li><li>Speed: 0 to 2500 RPM<\/li><li>4Nm rated torque<\/li><li>12Nm max torque<\/li><li>Speed control<\/li><li>Position control<\/li><li>Torque control<\/li><li>MODBUS RS232\/RS485 control interface<\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Mechanical design<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Pullies<\/h3>\n\n\n\n<p>I wanted the maximum speed of the spindle to be 10,000RPM, therefore with a maximum motor RPM of 2500 I need at least 4:1 ratio on the pullies. However after looking at the pully sizes it was apparent this ratio is not really feasible without two stages of reduction.<br>After playing with the motor settings I found I can actually run the motor at 3000 RPM seemingly without any trouble therefore need a 3.3:1 ratio.<\/p>\n\n\n\n<p>In the end I ordered:<\/p>\n\n\n\n<p>60 Tooth HTD5 pully for the motor (<a rel=\"noreferrer noopener\" href=\"https:\/\/www.beltingonline.com\/pilot-bore-c-272_285_482_493\/60-tooth-htd5-pulley-605m15-p-7788.html\" target=\"_blank\">https:\/\/www.beltingonline.com\/pilot-bore-c-272_285_482_493\/60-tooth-htd5-pulley-605m15-p-7788.html)<\/a><br>22 Tooth HTD5 pully for the spindle (<a rel=\"noreferrer noopener\" href=\"https:\/\/www.beltingonline.com\/22-tooth-htd5-pulley-22-5m-15f-7778\" target=\"_blank\">https:\/\/www.beltingonline.com\/22-tooth-htd5-pulley-22-5m-15f-7778<\/a>)<br>375mm HTD 5mm belt (<a rel=\"noreferrer noopener\" href=\"https:\/\/www.beltingonline.com\/htd-pitches-c-40_253\/5mm-htd-timing-belts-p-4575.html\" target=\"_blank\">https:\/\/www.beltingonline.com\/htd-pitches-c-40_253\/5mm-htd-timing-belts-p-4575.html<\/a>)<br><br>The shop also has the option of modifying the bores to the desired size which I opted for (19mm for the motor, 5\/8ths for the spindle), and for adding grub screw holes. I could have tried to do it myself but I did not want to risk ruining the pullies for the small amount it costs.<\/p>\n\n\n\n<p>This gives a maximum speed of 8181 RPM, not quite 10,000 but it was good enough. I chose a 22 Tooth pully for the spindle because going lower wasn&#8217;t going to leave enough metal when being put on the 5\/8th spindle.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"509\" src=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-1.png\" alt=\"\" class=\"wp-image-389\" srcset=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-1.png 800w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-1-300x191.png 300w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-1-768x489.png 768w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/figure><\/div>\n\n\n\n<h3 class=\"wp-block-heading\">Motor mount<\/h3>\n\n\n\n<p>I wanted the simplest method of attaching the motor to the block, and I wanted to try and use the existing motor support if possible.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><a href=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/mount.png\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/mount-1024x199.png\" alt=\"\" class=\"wp-image-392\" width=\"1051\" height=\"204\" srcset=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/mount-1024x199.png 1024w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/mount-300x58.png 300w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/mount-768x149.png 768w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/mount-1536x298.png 1536w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/mount.png 1800w\" sizes=\"auto, (max-width: 1051px) 100vw, 1051px\" \/><\/a><\/figure>\n\n\n\n<p>The CAD for the plate was done in Fusion 360. It uses 8mm aluminium and uses the existing motor mount and a new one put on the other side.<br>In order to reduce noise I put some rubber between the plate and the mounts, this massively decreased the vibrations going through the mill.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-3.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"820\" src=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-3-1024x820.png\" alt=\"\" class=\"wp-image-393\" srcset=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-3-1024x820.png 1024w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-3-300x240.png 300w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-3-768x615.png 768w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-3.png 1288w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1014\" height=\"527\" src=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-4.png\" alt=\"\" class=\"wp-image-394\" srcset=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-4.png 1014w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-4-300x156.png 300w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-4-768x399.png 768w\" sizes=\"auto, (max-width: 1014px) 100vw, 1014px\" \/><\/figure>\n\n\n\n<p>The control box is built around a standard aluminium box with a custom face plate<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"624\" src=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-6.png\" alt=\"\" class=\"wp-image-396\" srcset=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-6.png 1000w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-6-300x187.png 300w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-6-768x479.png 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-5.png\"><img loading=\"lazy\" decoding=\"async\" width=\"994\" height=\"824\" src=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-5.png\" alt=\"\" class=\"wp-image-395\" srcset=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-5.png 994w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-5-300x249.png 300w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-5-768x637.png 768w\" sizes=\"auto, (max-width: 994px) 100vw, 994px\" \/><\/a><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Electronics<\/h3>\n\n\n\n<p>Below shows the basic electronics setup. <\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"781\" src=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-9-1024x781.png\" alt=\"\" class=\"wp-image-402\" srcset=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-9-1024x781.png 1024w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-9-300x229.png 300w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-9-768x585.png 768w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-9.png 1144w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>The servo motor is controlled with a driver unit which can be configured to run the motor in various modes. For this application it is running in &#8216;velocity&#8217; mode which allows setting from 0 RPM to 3000 RPM. It is possible to configure the various inputs and outputs to have various operations.<br>I setup the servo driver to allow Modbus comms on the RS232 port, and to enable the motor on the &#8216;SigIn 1 Input&#8217;. While I was trying to debug a grounding issue I also added an input filter to the incoming 240v, I don&#8217;t think this is actually needed but I left it on anyway.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"801\" src=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/servo_controller.jpg\" alt=\"\" class=\"wp-image-399\" srcset=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/servo_controller.jpg 1000w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/servo_controller-300x240.jpg 300w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/servo_controller-768x615.jpg 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<p>The control box MCU is the 32F746G DISCOVERY from ST (<a rel=\"noreferrer noopener\" href=\"https:\/\/www.st.com\/en\/evaluation-tools\/32f746gdiscovery.html\" target=\"_blank\">https:\/\/www.st.com\/en\/evaluation-tools\/32f746gdiscovery.html<\/a>). This dev board uses an ARM F7 and comes with a large display.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/www.st.com\/bin\/ecommerce\/api\/image.PF261641.en.feature-description-include-personalized-no-cpn-large.jpg\" alt=\"\"\/><figcaption>STM32F746G Discovery dev board<\/figcaption><\/figure><\/div>\n\n\n\n<p>I needed to add a 5v to 12v DC\/DC convertor. This is to drive the SigIn input to the servo driver which needs 12v to operate the opto isolators.<\/p>\n\n\n\n<div class=\"wp-block-image\"><figure class=\"aligncenter is-resized\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/i.ebayimg.com\/images\/g\/pRsAAOSwAL5c4hiz\/s-l1600.jpg\" alt=\"Image 1 - DC 3.3V 3.7V 5V 6V to 12V Step-up Boost Voltage Regulator Converter modul JE\" width=\"251\" height=\"251\"\/><\/figure><\/div>\n\n\n\n<p>Below shows the back of the face plate. I have not wired up the buttons yet as they are not used.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-10.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"698\" src=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-10.png\" alt=\"\" class=\"wp-image-403\" srcset=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-10.png 1000w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-10-300x209.png 300w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-10-768x536.png 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/a><\/figure>\n\n\n\n<p>Below shows the aluminium box. The board in the top left is the RS232 to TTL convertor electronics.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"789\" src=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-11.png\" alt=\"\" class=\"wp-image-404\" srcset=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-11.png 1000w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-11-300x237.png 300w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-11-768x606.png 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\">Software<\/h3>\n\n\n\n<p>The MCU is responsible for communicating to the servo drive and displaying the graphs on screen. It is running FreeRTOS with 2 tasks, one for comms and one for the display.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-13.png\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"563\" src=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-13.png\" alt=\"\" class=\"wp-image-407\" srcset=\"http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-13.png 1000w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-13-300x169.png 300w, http:\/\/www.emtronics.co.uk\/wp_blog\/wp-content\/uploads\/2021\/07\/image-13-768x432.png 768w\" sizes=\"auto, (max-width: 1000px) 100vw, 1000px\" \/><\/a><\/figure>\n\n\n\n<p>The blue line on the graph shows the measured speed in RPM, the red line is the torque in percentage (from none to 100% power). <\/p>\n\n\n\n<p>The source code can be found here: <a href=\"https:\/\/github.com\/emileb\/SpindleControl\" target=\"_blank\" rel=\"noreferrer noopener\">https:\/\/github.com\/emileb\/SpindleControl<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Taig milling machine comes with a 1\/4HP (186 Watts) motor. This motor works great with the machine<\/p>\n","protected":false},"author":1,"featured_media":405,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4,3],"tags":[],"class_list":["post-382","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-mechanical","category-projects"],"_links":{"self":[{"href":"http:\/\/www.emtronics.co.uk\/wp_blog\/index.php?rest_route=\/wp\/v2\/posts\/382","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.emtronics.co.uk\/wp_blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.emtronics.co.uk\/wp_blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.emtronics.co.uk\/wp_blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.emtronics.co.uk\/wp_blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=382"}],"version-history":[{"count":14,"href":"http:\/\/www.emtronics.co.uk\/wp_blog\/index.php?rest_route=\/wp\/v2\/posts\/382\/revisions"}],"predecessor-version":[{"id":415,"href":"http:\/\/www.emtronics.co.uk\/wp_blog\/index.php?rest_route=\/wp\/v2\/posts\/382\/revisions\/415"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.emtronics.co.uk\/wp_blog\/index.php?rest_route=\/wp\/v2\/media\/405"}],"wp:attachment":[{"href":"http:\/\/www.emtronics.co.uk\/wp_blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=382"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.emtronics.co.uk\/wp_blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=382"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.emtronics.co.uk\/wp_blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=382"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}