{"id":7400,"date":"2025-12-09T22:44:12","date_gmt":"2025-12-09T21:44:12","guid":{"rendered":"http:\/\/www.railway-models-and-art.co.uk\/blog\/?p=7400"},"modified":"2025-12-09T22:44:12","modified_gmt":"2025-12-09T21:44:12","slug":"mok-8f-5425-another-spring-in-the-step-or-rather-pony-truck","status":"publish","type":"post","link":"http:\/\/www.railway-models-and-art.co.uk\/blog\/?p=7400","title":{"rendered":"MOK 8F 5425 &#8211; Another spring in the step or rather Pony Truck&#8230;"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">It was kindly pointed out that there is in fact a second spring that sits in the same place behind the pony truck but it isn\u2019t shown fully on the plan view of the GA. If you look very closely at the plan view you can see just a small section of it that has been cut away to show other detail. But once you know what you are looking at, you can see it clearly on the side view.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Like most things making a second one was easier than the first because I revised the order of operations and I didn\u2019t part it off from the main stock until after I had wound the \u2018spring\u2019 wire around it giving me a hand to hold whilst winding.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">I also turned all the centre section down to the largest diameter which is that of the plates at either end of the spring, then I used a hexagonal collet block to mill the two nuts using a 2mm end mill and then finally turning the other sections to final size then using a round file to shape the curved sections at each 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\/2nd-side-control-spring-in-progress.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"965\" src=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/2nd-side-control-spring-in-progress-1024x965.jpg\" alt=\"\" class=\"wp-image-7401\" srcset=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/2nd-side-control-spring-in-progress-1024x965.jpg 1024w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/2nd-side-control-spring-in-progress-300x283.jpg 300w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/2nd-side-control-spring-in-progress-768x724.jpg 768w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/2nd-side-control-spring-in-progress-1536x1448.jpg 1536w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/2nd-side-control-spring-in-progress-318x300.jpg 318w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/2nd-side-control-spring-in-progress.jpg 1892w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">2nd side control spring in progress<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Once the cosmetic spring was added it looked like this. It only needed the finest touch with a file to remove the parting nub to make it fit between the frames.<\/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\/2nd-side-control-spring.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"919\" src=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/2nd-side-control-spring-1024x919.jpg\" alt=\"\" class=\"wp-image-7402\" srcset=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/2nd-side-control-spring-1024x919.jpg 1024w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/2nd-side-control-spring-300x269.jpg 300w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/2nd-side-control-spring-768x689.jpg 768w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/2nd-side-control-spring-334x300.jpg 334w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/2nd-side-control-spring.jpg 1054w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">2nd side control spring<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">For a mad moment I did consider remaking the first one but then sanity prevailed and I decided to put the first one to the back where it won\u2019t be seen at all and put the second better (in my view) one at the front where not much of it will be seen either.<\/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\/2nd-side-control-spring-2.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"616\" src=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/2nd-side-control-spring-2-1024x616.jpg\" alt=\"\" class=\"wp-image-7403\" srcset=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/2nd-side-control-spring-2-1024x616.jpg 1024w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/2nd-side-control-spring-2-300x180.jpg 300w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/2nd-side-control-spring-2-768x462.jpg 768w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/2nd-side-control-spring-2-1536x924.jpg 1536w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/2nd-side-control-spring-2-2048x1232.jpg 2048w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/2nd-side-control-spring-2-500x300.jpg 500w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">8F  Pony Trick Side control springs<\/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\/2nd-side-control-spring-1-scaled.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\/2nd-side-control-spring-1-1024x763.jpg\" alt=\"\" class=\"wp-image-7404\" srcset=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/2nd-side-control-spring-1-1024x763.jpg 1024w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/2nd-side-control-spring-1-300x224.jpg 300w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/2nd-side-control-spring-1-768x572.jpg 768w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/2nd-side-control-spring-1-1536x1144.jpg 1536w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/2nd-side-control-spring-1-2048x1526.jpg 2048w, http:\/\/www.railway-models-and-art.co.uk\/blog\/wp-content\/uploads\/2025\/12\/2nd-side-control-spring-1-403x300.jpg 403w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">8F  Pony Trick Side control springs<\/figcaption><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>It was kindly pointed out that there is in fact a second spring that sits in the same place behind the pony truck but it isn\u2019t shown fully on the plan view of the GA. If you look very closely &hellip; <a href=\"http:\/\/www.railway-models-and-art.co.uk\/blog\/?p=7400\">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-7400","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\/7400","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=7400"}],"version-history":[{"count":1,"href":"http:\/\/www.railway-models-and-art.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/7400\/revisions"}],"predecessor-version":[{"id":7405,"href":"http:\/\/www.railway-models-and-art.co.uk\/blog\/index.php?rest_route=\/wp\/v2\/posts\/7400\/revisions\/7405"}],"wp:attachment":[{"href":"http:\/\/www.railway-models-and-art.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7400"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.railway-models-and-art.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7400"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.railway-models-and-art.co.uk\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7400"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}