{"id":7384,"date":"2025-12-07T12:48:50","date_gmt":"2025-12-07T11:48:50","guid":{"rendered":"http:\/\/www.railway-models-and-art.co.uk\/blog\/?p=7384"},"modified":"2025-12-07T12:48:50","modified_gmt":"2025-12-07T11:48:50","slug":"mok-8f-8425-a-little-more-progress","status":"publish","type":"post","link":"http:\/\/www.railway-models-and-art.co.uk\/blog\/?p=7384","title":{"rendered":"MOK 8F 8425 &#8211; A little more progress."},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Although progress has been slow since my last post, I haven\u2019t been entirely idle.<br>First, I fitted the brake cylinder that Adrian made for me some time ago for which I am very grateful.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-loco-brake-cylinder-scaled.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1004\" height=\"1024\" src=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-loco-brake-cylinder-1004x1024.jpg\" alt=\"\" class=\"wp-image-7385\" srcset=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-loco-brake-cylinder-1004x1024.jpg 1004w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-loco-brake-cylinder-294x300.jpg 294w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-loco-brake-cylinder-768x783.jpg 768w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-loco-brake-cylinder-1506x1536.jpg 1506w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-loco-brake-cylinder-2008x2048.jpg 2008w\" sizes=\"auto, (max-width: 1004px) 100vw, 1004px\" \/><\/a><figcaption class=\"wp-element-caption\">Replacement Brake Cylinder<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Then for some reason which I can\u2019t recall I was looking at the GA of the pony truck in the Wild Swan book and realised that detailed as the MOK Pony Truck is it\u2019s missing the side control spring.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Pony-Truck-as-supplied.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"889\" src=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Pony-Truck-as-supplied-1024x889.jpg\" alt=\"\" class=\"wp-image-7386\" srcset=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Pony-Truck-as-supplied-1024x889.jpg 1024w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Pony-Truck-as-supplied-300x261.jpg 300w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Pony-Truck-as-supplied-768x667.jpg 768w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Pony-Truck-as-supplied-1536x1334.jpg 1536w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Pony-Truck-as-supplied-2048x1779.jpg 2048w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Pony-Truck-as-supplied-345x300.jpg 345w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Pony-Truck-as-supplied-1-scaled.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"846\" src=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Pony-Truck-as-supplied-1-1024x846.jpg\" alt=\"\" class=\"wp-image-7387\" srcset=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Pony-Truck-as-supplied-1-1024x846.jpg 1024w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Pony-Truck-as-supplied-1-300x248.jpg 300w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Pony-Truck-as-supplied-1-768x634.jpg 768w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Pony-Truck-as-supplied-1-1536x1269.jpg 1536w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Pony-Truck-as-supplied-1-2048x1691.jpg 2048w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Pony-Truck-as-supplied-1-363x300.jpg 363w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">I scanned the GA, imported it into Fusion and having scaled it, I then drew up the spring and it\u2019s mounting.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/Side-control-spring.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"884\" height=\"614\" src=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/Side-control-spring.jpg\" alt=\"\" class=\"wp-image-7388\" srcset=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/Side-control-spring.jpg 884w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/Side-control-spring-300x208.jpg 300w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/Side-control-spring-768x533.jpg 768w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/Side-control-spring-432x300.jpg 432w\" sizes=\"auto, (max-width: 884px) 100vw, 884px\" \/><\/a><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">From there it was easy to create a dimensioned drawing to allow me to attempt to make one.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/Side-Control-Spring-drawing.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"575\" height=\"733\" src=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/Side-Control-Spring-drawing.jpg\" alt=\"\" class=\"wp-image-7389\" srcset=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/Side-Control-Spring-drawing.jpg 575w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/Side-Control-Spring-drawing-235x300.jpg 235w\" sizes=\"auto, (max-width: 575px) 100vw, 575px\" \/><\/a><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">I debated whether to make it in one piece and then wind wire around it to represent the spring or to make it in two pieces and thread the centre section 4ba (3.6mm) which is the nearest sized die that I have to the 3.5mm that I had worked out from the drawing. I decided to have a go at making the one-piece version first. If that didn\u2019t look good enough, I would have another go.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"763\" src=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring-1024x763.jpg\" alt=\"\" class=\"wp-image-7390\" srcset=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring-1024x763.jpg 1024w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring-300x223.jpg 300w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring-768x572.jpg 768w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring-403x300.jpg 403w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring.jpg 1333w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">8F Side Control Spring<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">There was a slight discrepancy between the GA and the actual width of my pony truck so I ended up turning a couple of thin spacers to fill the gap but it worked out okay in the end.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring-Fitted-2.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"835\" height=\"1024\" src=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring-Fitted-2-835x1024.jpg\" alt=\"\" class=\"wp-image-7391\" srcset=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring-Fitted-2-835x1024.jpg 835w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring-Fitted-2-245x300.jpg 245w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring-Fitted-2-768x942.jpg 768w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring-Fitted-2-1253x1536.jpg 1253w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring-Fitted-2-1670x2048.jpg 1670w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring-Fitted-2.jpg 1910w\" sizes=\"auto, (max-width: 835px) 100vw, 835px\" \/><\/a><figcaption class=\"wp-element-caption\">8F Side Control Spring fitted<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring-Fitted-1-scaled.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"729\" src=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring-Fitted-1-1024x729.jpg\" alt=\"\" class=\"wp-image-7392\" srcset=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring-Fitted-1-1024x729.jpg 1024w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring-Fitted-1-300x214.jpg 300w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring-Fitted-1-768x547.jpg 768w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring-Fitted-1-1536x1093.jpg 1536w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring-Fitted-1-2048x1458.jpg 2048w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring-Fitted-1-422x300.jpg 422w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">8F Side Control Spring fitted<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring-Fitted.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"745\" src=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring-Fitted-1024x745.jpg\" alt=\"\" class=\"wp-image-7393\" srcset=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring-Fitted-1024x745.jpg 1024w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring-Fitted-300x218.jpg 300w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring-Fitted-768x559.jpg 768w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring-Fitted-1536x1118.jpg 1536w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring-Fitted-2048x1491.jpg 2048w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/8F-Side-Control-Spring-Fitted-412x300.jpg 412w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">8F Side Control Spring fitted<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">As you can see, it actually sits largely out of sight (when viewed from the front) but I enjoyed making it, and I know it\u2019s there.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Although progress has been slow since my last post, I haven\u2019t been entirely idle.First, I fitted the brake cylinder that Adrian made for me some time ago for which I am very grateful. Then for some reason which I can\u2019t &hellip; <a href=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/?p=7384\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[6],"tags":[],"class_list":["post-7384","post","type-post","status-publish","format-standard","hentry","category-mok-8f"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"http:\/\/www.railway-models-and-art.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/7384","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.railway-models-and-art.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.railway-models-and-art.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.railway-models-and-art.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.railway-models-and-art.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7384"}],"version-history":[{"count":1,"href":"http:\/\/www.railway-models-and-art.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/7384\/revisions"}],"predecessor-version":[{"id":7394,"href":"http:\/\/www.railway-models-and-art.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/7384\/revisions\/7394"}],"wp:attachment":[{"href":"http:\/\/www.railway-models-and-art.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7384"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.railway-models-and-art.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7384"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.railway-models-and-art.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7384"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}