https://www.rasmustretow.se/about daily 0.75 2026-01-13 https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/897786f9-f709-451b-b804-ff05862d076a/portr%C3%A4tt.png https://www.rasmustretow.se/contact daily 0.75 2026-01-13 https://www.rasmustretow.se/work daily 1.0 2026-10-30 https://www.rasmustretow.se/work/vega monthly 0.5 2026-10-30 https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/ece403e8-5861-4265-a2a2-b22a6ae2aa59/usb-5v-led-grow-light-full-spectrum-phytolamp-for-s-one-size.webp Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/8473fdab-e773-4700-9a48-4a3bba1aba98/H052c111848bf4e35ba982168f64ceb39V.jpg_321x321.jpg Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/1763558640668-57Z5R74BLTFTN4AMH8NE/unsplash-image-0tRhUZKg_88.jpg Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/c4d94771-b4b4-437d-9138-5a0f4bed0e32/tempImageUjPqd6.jpg Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/8e2c54b3-7cbd-4e56-8e35-fa3096a1007c/pods.jpg Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/47564a03-250f-44bf-bd8b-f1b547d5ea4f/botanium_problems.jpg Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/72e5d262-2dca-4d26-b40a-79e5219fdd0c/main_image.webp Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/18eb9b31-c314-4316-bf4f-2a5ce7a2adbc/screen1.png Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/b4c59868-a6ca-475a-894a-bedd9aaffe38/screen2_v2.png Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/6603ae37-9212-4434-a20e-1529dfb5a95b/screen3_v2.png Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/d30a496b-1828-4189-9c07-11cb3aa9c7eb/screen4_v4..png Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/1793261214979-9QNJNRDCISSQVKCTQHQF/unsplash-image-W5XTTLpk1-I.jpg Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/f6c2d1f1-e44f-4984-953e-0a60877daa79/plate2.jpg Work - Botanium Vega The water level is shown in six steps and you can easily tell when you need to refill the water tank. The RGB-LED to the right uses different colors to alert the user about wifi-connectivity issues such as poor signal, no pairing, no connection etc. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/93e58906-f74c-428c-abcc-1f644a9164a0/app_example.webp Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/32d63d5e-2e76-4650-ace1-b6a866e00afc/baljor+kopiera1.webp Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/1d91fb9e-0bc7-4554-96f6-95fc434698c9/lamp1.jpg Work - Botanium Vega The anodised aluminum extrusion acts as a heatsink and a lampshade at the same time, enabling very efficient, glare-free lighting and a relatively cool surface that is safe to touch. The warm color temperature of 3500K makes for a pleasant hue, suitable for both plants and people. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/bb49e77c-fdfa-49d0-ab55-48c788cd0133/BotaniumByMartinBohmWEB20.PNG Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/57937150-aa51-4edf-b233-eca1a85f14b1/lampor+.webp Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/0459dfdf-b981-4846-9bec-85df72a76851/retractable+light3.jpg Work - Botanium Vega Without having to release any knobs or mechanisms, the lamp arm can be moved according to the size of the plants growing in the pot. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/27212eba-f9f5-4981-87e9-a8517f0aecab/BotaniumByMartinBohmWEB38.PNG Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/6ccc7b5b-fde7-4993-aafc-e34a9958fe24/detaljer+kopiera.webp Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/1a689204-01c7-446f-8f6a-f2902b848a60/Sk%C3%A4rmavbild+2025-11-19+kl.+17.21.33.png Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/5b863689-9714-43b7-aa3f-3d216047d61e/lid.jpg Work - Botanium Vega The water tank is refilled from the lid on the right side. This way, you don't need to remove the growing container to refill, which otherwise would be in the way. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/89858d7d-26c7-4efc-803c-6dfc70d28e57/BotaniumByMartinBohmWEB18.PNG Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/4a0acf74-f319-4ca7-be3c-6d44b6b5d7f6/IMG_2909.jpg Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/2750713b-47bd-4a55-a463-a8c706b1460e/container+watering.jpg Work - Botanium Vega Instead of soil, the plants grow in balls of burnt clay (LECA). Regardless of the plants, this allows for a root environment that allows for regular watering every third hour. This kind of growing is called hydroponic growing, https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/dc3a6ef5-a6f9-4e22-b14a-56f63ec4887c/f%C3%B6rpackning+v2.jpg Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/ed8deba6-9cc2-439f-bb8f-c9f710ce6506/protoypes.jpg Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/346383e7-e836-4da3-a79d-4aaa75e072cf/cut+section.png Work - Botanium Vega The water that is not absorbed by the growing medium and the roots is drained back into the tank, thus circulating and reusing the water. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/35e6d3ca-8dd1-4145-8ecc-ee57de7155ba/Botanium+Vega_watering.JPG Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/79375e73-9b64-415e-b1a4-0cb0a3165ddf/protoypes3.jpg Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/7bd37571-c60b-48bf-b422-c6f18e44897a/dividers+arrow.jpg Work - Botanium Vega By putting in divider plates in the growing container, you can keep the roots from different plants to tangle. This enables you to easily remove plants in each section if you want to grow something new. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/7aa11515-d168-4de0-8dfe-1dc75c5745e6/grip.jpg Work - Botanium Vega Cutout for easier grip on the growing container when it needs to be removed. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/c97a7402-933f-4073-b826-cd04ae19552e/lamp+concepts.jpg Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/f77b2879-3532-4802-90e7-412930672407/colors.jpg Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/c05cef41-081a-446c-bc7c-696ee5c69992/sensorsmotors+6.webp Work - Botanium Vega The water level is measured with a capacitive sensor (2), which allows for contact-less measuring. The nutrient concentration in the water is measured with an EC (electrical conductivity) sensor (1). One of the two water pumps is visible here too (3) https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/64087bae-faee-403e-b9e5-c08672a61588/protoypes2.jpg Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/2f39672d-5ad0-4b1a-8fff-5b081826a16b/59351462834__CBBD8579-69C6-470F-8E57-B2973257D883.JPG Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/59d8103b-0044-4721-8a4d-4e4e7675092b/IMG_1592.jpeg Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/5661d9ad-aea0-4d5a-a801-fdb5f6a82434/59429455139__FD3FD6CF-CBEE-4C08-B36A-4869523AF8DB.JPG Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/20eaa1dd-5ab3-48df-98a2-63bea41eb016/IMG_0323.jpeg Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/2e4ef3fb-a85a-4346-a68d-c09d8553a886/IMG_1944.JPG Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/3d65a90d-9d1c-4bb2-a44b-dd01499e30cd/IMG_5174-2+kopiera.jpg Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/84916f1a-255d-4f71-b521-8cc4e4f3c7f6/IMG_0661.jpeg Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/087d7fd6-a47a-4ace-96d6-d46ec2ea38f5/IMG_2208.jpeg Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/6831fd54-95a5-43d5-9389-b7b3c4948feb/IMG_0663.jpeg Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/5f6e3b49-3c2d-4c9d-b404-2945a42d9e82/IMG_0341.jpeg Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/3dd595e6-a77d-4d3d-ac22-0b0a7463baa8/IMG_1200.JPG Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/b6dfa464-1348-42f2-9ba9-c5ee718699ea/IMG_1422.jpeg Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/6505d599-21f0-4932-b9f5-8bbfc76a858f/20220804_144307.jpg Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/06ffcf4f-08bc-4e4a-9d4b-3a57b4e3ac4c/IMG_5178+kopiera+2.jpg Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/31aaf7f2-862c-4514-86fe-b4a5985624a7/IMG_4279+Stor.jpeg Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/2919fbec-8ed8-477f-9bc1-3361e50c4006/IMG_0707.jpeg Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/dcca1669-9b2e-4f2e-86d9-bb86100b8ffc/IMG_1255+-+stor.jpeg Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/42b0bd6a-2153-4ce3-a068-42d7f102c273/IMG_1129+3+-+stor.jpeg Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/7b8643f4-5642-419f-871f-897203653268/IMG_1128+3+-+stor.jpeg Work - Botanium Vega https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/9b8c887e-bd22-4545-a252-1dce4f1de1a7/Botanium_Logo_Green_TransparentBackground.png https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/900eb632-945d-46de-b5f6-c707e25ae82f/overview3.jpg https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/61f9cbf3-f825-4032-bf56-0d87bbdf4c10/Image+2026-10-28+at+12.03.png https://video.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/57ffb831-eb1a-4b7e-a7be-8d4bc769eeef/playlist.m3u8 https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/fd03a2c2-e785-458e-b799-966f979d7361/Sk%C3%A4rmavbild+2026-10-28+kl.+11.55.37.png Work - Botanium Vega Work - Botanium Vega https://www.rasmustretow.se/work/motorized-grinder monthly 0.5 2026-10-30 https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/8e432cc7-7f88-481d-b96f-f0273379d064/IMG_4946.jpeg Work - Motorized Coffee Grinder Early prototypes relied on aluminum extrusions to increase stiffness of the 3d-prints https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/cb875f14-8fd7-4af0-bca2-5af9c66c163e/IMG_4357.jpeg Work - Motorized Coffee Grinder https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/77751bf9-cb2e-4165-bbb3-8188f72e641f/Matte+Black+and+Silver+Industrial+Device.png Work - Motorized Coffee Grinder The complete, fully functioning motorised grinder https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/0afb7a77-ca49-4259-9d02-5764644609b2/Sk%C3%A4rmavbild+2025-12-19+kl.+17.24.17.png Work - Motorized Coffee Grinder https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/cccc1628-bac8-4066-988f-3c81b7e11f5d/Hand+Holding+a+Ribbed+Cylindrical+Stand.png Work - Motorized Coffee Grinder Rotate to remove grinder and add beans and adjust grind size https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/27c8c7f1-8fa1-4e3a-ac95-efd5388e9928/Svart+3D-printad+cylinder+med+f%C3%A4ste.png Work - Motorized Coffee Grinder A part that holds the motor and is meant to be attached to an aluminum extrusion https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/e2185d50-d440-4951-80b4-30f825320c19/Sk%C3%A4rmavbild+2025-12-19+kl.+17.24.39.png Work - Motorized Coffee Grinder https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/1793291570025-6W1ROOKHTOMTY1TILFCK/IMG_0455Tv17PJ.png Work - Motorized Coffee Grinder Adapter for connecting the motor's d-shaft to the grinder's hex-shaft. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/b60f5736-0b84-4ef3-a9d4-6404cb5dd7fc/kvarn_knapp.png Work - Motorized Coffee Grinder Grid for allowing heat to escape https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/5f389b26-a83b-4010-9af1-41b0e4e830a7/Sk%C3%A4rmavbild+2025-12-19+kl.+17.13.14.png Work - Motorized Coffee Grinder https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/dc0c0304-b5bb-4203-b125-836af8a1f328/Integrated+Black+Mechanical+Clamp+Housing.png Work - Motorized Coffee Grinder This version clamped the grinder using two aluminum knobs - it was however not strong enough to keep the grinder from spinning when the motor started. Also, it was a slow process to unscrew it. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/f14266df-283d-4ed4-92f3-ec5682bedc26/M%C3%B6rkt+mekaniskt+h%C3%B6lje+utan+r%C3%B6d+kabel.jpg Work - Motorized Coffee Grinder Adapter for connecting the motor's d-shaft to the grinder, 3D-printed in steel https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/8d94ab85-3788-4fa7-8f70-218e10fdd8f8/Sk%C3%A4rmavbild+2025-12-19+kl.+17.25.18.png Work - Motorized Coffee Grinder https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/e63b00f4-6f4c-40ca-82e6-bb01ea5ba96c/Manuell+kvarn+och+motorhus+p%C3%A5+gr%C3%A5+bakgrund.png Work - Motorized Coffee Grinder Bayonette fitting for easy removal and attachment https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/1c09cf4f-d926-41f7-9761-5ee54154c470/3D-printat+industriellt+f%C3%A4ste+med+rund+%C3%B6ppning.png Work - Motorized Coffee Grinder The device had to be printed in two parts and screwed together. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/b14d2212-5659-4bf0-9c27-3557ccdb2645/Sk%C3%A4rmavbild+2025-12-19+kl.+17.15.41.png Work - Motorized Coffee Grinder https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/7a53602c-6f66-400f-8dbd-7cb507247b74/IMG_5152.jpeg Work - Motorized Coffee Grinder A variant that used a knob to start the grinder with a twisting motion. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/f7a7ecc4-644a-4d48-857c-e5d767ff04a8/Rengjord+silverkopp+bredvid+kaffekvarn.png Work - Motorized Coffee Grinder The holder can be unscrewed if you would want to use the grinder manually again https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/f98bc1d6-8d63-432a-bf76-38837bb1ea5f/Sk%C3%A4rmavbild+2025-12-19+kl.+17.13.42.png Work - Motorized Coffee Grinder https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/d753b75b-1b9b-4689-9adf-e3ebff711020/IMG_5153.jpeg Work - Motorized Coffee Grinder The motor driver module in the first version https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/40be22db-afcd-4051-b3b4-87fb10416a64/Sk%C3%A4rmavbild+2025-12-19+kl.+17.08.45.png Work - Motorized Coffee Grinder https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/4b42b063-8789-4cce-bca1-f5d26d44f021/IMG_2159+kopiera.jpg Work - Motorized Coffee Grinder Two variants of bottom parts and one top part, together with fasteners for that attach to the grinder https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/7c525200-693a-471c-b168-8fe3921fc051/Sk%C3%A4rmavbild+2025-12-19+kl.+17.08.18.png Work - Motorized Coffee Grinder https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/82d4dc2a-0c98-453e-ab3c-d9465463e479/IMG_0457PVjmjp.png Work - Motorized Coffee Grinder Grinder attachment that didn't have enough clearance for the fingers to reach the grind settings dial. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/e04aa256-3dd9-40a4-b1f4-6d12b1156496/Sk%C3%A4rmavbild+2025-12-19+kl.+17.03.24.png Work - Motorized Coffee Grinder https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/b00bea35-5ece-409a-a4ea-16ca918e457d/IMG_0456DCaB7x.png Work - Motorized Coffee Grinder Improved version. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/a1e62e05-d859-4ec8-a2db-d01027202300/Sk%C3%A4rmavbild+2025-12-19+kl.+17.01.11.png Work - Motorized Coffee Grinder https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/ad332009-3300-4328-b562-b37471eeef0a/IMG_0484.jpeg Work - Motorized Coffee Grinder https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/306cd071-59a1-48ec-ac36-60d4c121103b/Sk%C3%A4rmavbild+2025-12-19+kl.+17.29.45.png Work - Motorized Coffee Grinder https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/bdb53af0-e2d8-4896-b1b5-2683d3ea701b/IMG_0432.jpeg Work - Motorized Coffee Grinder The final version uses an Arduino to slowly ramp up the RPM of the motor with a button press. Not only is it easier on the motor, it's also an improved experience that feels deliberate, precise and careful. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/24075386-317c-4a1d-9fb0-38503ebfd61f/Sk%C3%A4rmavbild+2025-12-19+kl.+17.00.48.png Work - Motorized Coffee Grinder https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/a3f49de9-ad69-4691-b350-7343094097a2/1zpressojxpro_grande.jpg.webp https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/9e07f660-f224-43e1-b767-b27005ea8627/1760582697-using_hand_coffee_grinder.jpg https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/6e1b7552-b319-4b07-8d32-f7bc5c1a804e/570A530C-9DBD-466F-909B-4B07A1D3FFA3_1_105_c.jpeg https://video.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/548a0eb3-a9de-453e-b8df-751e1d96c55c/playlist.m3u8 https://video.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/548a0eb3-a9de-453e-b8df-751e1d96c55c/thumbnail Work - Motorized Coffee Grinder Work - Motorized Coffee Grinder https://www.rasmustretow.se/work/explorations monthly 0.5 2026-10-30 https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/93b8e5c3-dc97-4d7c-9966-a6ddc83d81ad/oak-ey.webp Work - Other explorations "Oak bottle" - a combination of a bottle and an oak cask. The idea is to let the whiskey mature in the bottle instead of a cask, which will go quicker because of the higher surface to volume ratio. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/a8832acc-388c-4f20-9e8c-f7988f5a360d/medlampajpg2.jpg Work - Other explorations https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/193a64cc-c88a-4fd6-b64c-83c0bb57e0bf/gaia+kopiera.jpg Work - Other explorations Gaia - another (!) hydroponic system I designed and developed as a consultant for Easy Urban Gardening as a part of a small team. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/d8930f3a-aeb8-439f-a1df-d76454a2990e/oak.jpg Work - Other explorations The oak bottle is composed of laser cut segments of oak held together with aluminum frames. This earlier version of the oak bottle used wooden frames for holding it together - which turned out to be too weak. The charred surfaces that the laser cutting produce are a bonus, since whisky casks actually are charred. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/e75793e1-e5f0-48df-8916-dfb056b90945/medlampajpg.jpg Work - Other explorations https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/aaef496b-4964-4e46-b224-d924c5f6030b/97A37339-BE06-4309-962B-6BC46DCCC795_1_105_c.jpeg Work - Other explorations The system was modular, so that you could stack up to five growing boxes onto the water tank. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/2d72bb4a-6880-4748-954b-abc73ad422dd/robocup.webp Work - Other explorations "Robocup" - an espresso cup made with 3D printed ceramics. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/e438664b-6b4d-46b0-a377-f2576055da7a/niv%C3%A5m%C3%A4tare_form.png Work - Other explorations Testing out different shapes - the idea was first to fit a standard AAA battery inside. Ultimately, I decided on using a more compact, rechargeable LiPo to make the form factor smaller and more discrete. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/be27514a-e1bb-4505-bab2-9c7188f5b3a1/IMG_0566.jpeg Work - Other explorations The puck attached to a water tank https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/8c4bda52-e3c2-4f49-9732-d8c02ddc4e0a/IMG_8506.JPG Work - Other explorations https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/d003dc7e-7cd1-486d-a02e-98442cfed83d/steeltamper.webp Work - Other explorations An espresso tamper made of 3D printed stainless steel. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/949a4e89-6669-4537-86d5-87bee43a318f/klocka11.jpg Work - Other explorations A clock that displays time as a wave https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/08128d99-65a0-4c07-8039-0d9be6ad1926/klocka_rendering.png Work - Other explorations Backlight for night view https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/b07faf90-34a1-4896-b7db-a0e758118d14/hero4.jpg Work - Other explorations Four-legged plant stand https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/010fa942-54e4-4a9d-a491-dd417be8698d/new_lit+kopiera.webp Work - Other explorations Form experiments in blender https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/4d9b4afd-faf2-4f0e-b8de-e0114e9a9842/hero+kopiera.webp Work - Other explorations Simple self-watering planters, designed to be 3D-printed (no electronics, unlike Botanium) https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/d9f67ddf-34ec-4368-af9e-ccb117690009/mainpic.jpg Work - Other explorations 3D printed semla. You ask "why?" - I ask "why not?" https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/ceb78b3f-b14b-4ebb-9f53-ffdac89a6e65/Sk%C3%A4rmavbild+2025-12-06+kl.+09.07.04.png Work - Other explorations A 3d scan of a semla that a friend sent me https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/98d3350b-5cf4-45cd-a5aa-82b5666bf260/niv%C3%A5m%C3%A4tare.png https://video.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/9763d488-3c31-4dc2-9494-5ab423f1441b/playlist.m3u8 https://video.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/9763d488-3c31-4dc2-9494-5ab423f1441b/thumbnail Work - Other explorations Work - Other explorations https://video.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/5f447271-9e50-48c6-a9ff-dde816d89d3a/playlist.m3u8 https://video.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/5f447271-9e50-48c6-a9ff-dde816d89d3a/thumbnail Work - Other explorations Work - Other explorations https://www.rasmustretow.se/work/botanium monthly 0.5 2026-10-30 https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/1763478400588-3JLSSFQFUF7SIZL2YLHO/unsplash-image-sFydXGrt5OA.jpg Work - Botanium https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/1765372088592-W8CMUOVFQ2E94D2CLWG4/unsplash-image-vrbZVyX2k4I.jpg Work - Botanium https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/1765372132175-YBDMC63SJM56HEKJMBJJ/unsplash-image-mmEaEAw_iS8.jpg Work - Botanium https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/7ee42c19-b293-46bf-bd63-1c7bc7f2cc0a/hallnas-9093%2C+Topaz+Gigapixel%2C+2x+skala.jpg Work - Botanium https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/134a9b63-498b-4f1a-bf27-985c9fdc78d5/Wilted-Leaves-%2C+Topaz+Gigapixel%2C+2x+skala.jpg Work - Botanium https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/0df92dff-c52c-4177-a205-7313aee28f80/Botanium_Automatic.jpg Work - Botanium https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/8fdd74f5-39b3-4591-8d21-22dfd85b5a1b/Botanium_FasterGrowth.jpg Work - Botanium https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/71fa7191-a59f-4e26-a213-599605fb099f/Botanium_WaterUse.jpg Work - Botanium https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/1931746f-ba95-4bb3-b001-0d241a4e955a/Botanium_LessRoots.jpg Work - Botanium https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/04fd2f30-f46c-476e-952f-da4b3b63cc78/IMG_3883.jpg Work - Botanium First prototype, evaluating the proportions of the water tank and growing container. (top vs bottom) https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/d18d0297-2a5f-41c9-9c84-776aca64c6a3/P1077118.jpg Work - Botanium https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/9eeb5e7f-6309-40fd-ae7d-c9fae3da9f24/Hydro_basil+grey.jpg Work - Botanium https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/f33aad54-a694-4252-870e-74af317a4342/closeup_basil+2-3.jpg Work - Botanium https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/028b02e1-6d90-4c2d-9ada-48ba058a68e4/IMG_3993.JPG Work - Botanium The water tank in which a pump will be placed https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/6eacdafe-b3fd-4cd3-ac45-025ec861c3cd/under_light_portrait.jpg Work - Botanium https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/f108df59-f341-41c6-9f22-c3faebb866a7/wall_of_botanium_low_res.jpg Work - Botanium https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/e54f535d-8217-4ee6-8414-58be347fe3aa/IMG_4548.JPG Work - Botanium Fully functional 3d-printed prototype. Water is pumped from below into the top container. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/fead61a8-fdd1-499b-8404-f7eee8682124/ambiente.jpg Work - Botanium https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/ccc7df9d-9188-45ff-8186-9183aa1dfcdb/tomato_balsamico.jpg Work - Botanium https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/27b1beb5-5aa0-45a4-8e3e-b674a1930edb/3d_printer1.jpg Work - Botanium Testing ways to 3d print with better surface finish https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/fc716169-35a5-46b1-a79e-1086fe6ba04f/kitchen_cooking.jpg Work - Botanium https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/d75da7b8-87ae-4ec3-8ca0-47668831fda1/IMG_5925.JPG Work - Botanium Experimenting with watering from top down instead of from below, in order to make the water last longer. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/56e39c1a-bb3d-4cc8-a8dd-c874f727c972/urban_outfitters2%2C+Topaz+Gigapixel%2C+2x+skala.webp Work - Botanium https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/bdb94613-d94a-4bd4-b6c9-21e4fb8b405c/IMG_6176.JPG Work - Botanium Early prototypes had a mesh that couldn't prevent the roots from growing down into the water tank. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/23983786-c1d4-48ca-a231-1fc123e11277/botanium-kit.webp Work - Botanium https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/4d85f2d6-d8df-476c-b013-1a21277873f6/IMG_6016.JPG Work - Botanium Cap that prevents water from evaporation. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/38a37cfa-569a-4c7a-ad96-8044e26186b8/IMG_5995.JPG Work - Botanium Trying out a different growing medium. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/3f29e532-30d3-48ab-8df1-beacd711a20b/IMG_6764.JPG Work - Botanium Another water dispenser design that spreads out the water better. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/8a82044f-8d6a-4f7d-8815-9f2af73a4e39/IMG_7247.JPG Work - Botanium Started selling it online as "Crux" to chili growing enthusiasts. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/70020451-dc8c-412f-a203-cad432b63d21/magnet_closeup43.jpg Work - Botanium This version had a magnet ball tracking the water level inside the tank. Problematic, since the magnet was easy to loose and wasn't child safe. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/dc216eab-b704-48ab-8579-de73794d966d/crux_close2.jpg Work - Botanium Idea for how to prevent the magnet from being lost. At this stage we were starting up Botanium, and figuring out mass production. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/81bebf3c-acb0-47bd-b39c-2a3c23ccae43/crux_close1.jpg Work - Botanium Another solution for the magnet. But eventually, we decided to abandon the magnet because of the increased complexity of manufacturing, and went for a window in SAN (two-shot injection moulding) https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/aefb4a42-ae81-4db3-8aa6-46574c8cbd7b/IMG_9098.JPG Work - Botanium Testing the PCB. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/60c03f16-bade-4064-9a66-0239de8e2cb6/IMG_8816.JPG Work - Botanium New prototype (left) - re-modeled for injection moulding instead of 3d-printing. The final product was somewhere in between them in size. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/1e358af5-0c80-4599-9185-286587a45daa/IMG_8913.JPG Work - Botanium Testing the first prototype with a simple water distribution ring. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/2abdefd3-be14-4773-b65a-096045b4a34c/IMG_8813.JPG Work - Botanium New "watering ring" that evenly distributes water. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/82a43699-8e07-486e-95a7-cd0d057df453/IMG_8983.JPG Work - Botanium Electronics that control the pump and is powered by USB. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/ab64d775-f75e-461a-9b66-a9cdede04034/prototypeswebp.webp Work - Botanium Various prototypes. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/7919dc8c-e9a5-4f24-b507-554a7a3acd0b/IMG_9900.JPG Work - Botanium First samples from the factory with injection moulded parts. https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/5e696eff-c4ec-4862-806f-0fc516f7dad3/images.png https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/9b8c887e-bd22-4545-a252-1dce4f1de1a7/Botanium_Logo_Green_TransparentBackground.png https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/b3994145-5c74-4f56-a5a5-a5a4c66132ac/hand-green.webp https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/1814138f-e7a7-4c62-a2c9-4bb27eed7dae/strawberry.JPG https://images.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/bef8fefa-77db-4b66-9574-f6021b1dd367/funded-with-kickstarter.webp https://video.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/9e015735-bd6f-41c4-9e7d-4564b59cf871/playlist.m3u8 https://video.squarespace-cdn.com/content/v1/6914b5d0117d472761699145/9e015735-bd6f-41c4-9e7d-4564b59cf871/thumbnail Work - Botanium Work - Botanium