#epitrochoid

A heaping helping of examples of the Epitrochoid and Hypotrochoid tools coming in Tux Paint 0.9.32. These are the kinds of curves you get when you draw with a device like a "Spirograph" or "Wondergraph". (Roulette curves; specifically, centered trochoids.)

Rosa 🌹🐲📚🌀 #feliçsantjordi #santjordi #epitrochoid #17 #opart #opticalart #espirografo #spirograph (en Antiga Fabrica Estrella Damm)

I enjoyed bringing my toddler bike, suitcase-sized Bicycle Spirograph 4 drawing machine to Bike Boom bike parts jumble sale yesterday. Its first public appearance since the pandemic – in fact, its first proper outing since I made it for two art exhibitions in South Korea in late 2019. My last foreign work trip! Here’s to more art and science adventures in 2022… #GiantDrawingMachines @bikebooom #bigbikejumblesale #drawingmachines #spirograph #epitrochoid #bikeart #geometry #scrapart #recycledart (at Portslade, West Sussex, United Kingdom) https://www.instagram.com/p/CazTKmKIyCj/?utm_medium=tumblr

Doodling multicolour epitrochoids with my Bicycle Spirograph 4 drawing machine, at @BrightonScience Hands On Half Term. More geometric fun tomorrow. Join us! @st_augustines_centre #hypotrochoid #epitrochoid #spirograph #GiantDrawingMachines #drawingmachine #epicycles (at St Augustine's Arts and Events Centre Brighton) https://www.instagram.com/p/B84R7AFn4rx/?igshid=1k1xjnr5ctcn3

Trippy! Which are your favourite loopy patterns? Here’s every unique Spirograph cog combination from 45:10 (red, hypotrochoid) to 10:45 (blue, epitrochoid) and back again. Fractional ratios sorted by decimal equivalents. All coded in Processing, inspired by @the.coding.train … #spirograph #hypotrochoid #epitrochoid #processing @processingorg #computerart #squircle #circleinasquare #rainbow #spectrum (at Portslade, West Sussex, United Kingdom) https://www.instagram.com/p/B74KZkxHys5/?igshid=gvwhkichmnwq

My Bicycle Spirograph 2 drawing machine is in the 2020 American Mathematical Society calendar! Very proud. I’m in with a lot of other fascinating “math” people and puzzles. Also, I chose my daughter’s birthday as the page to be on. #GiantDrawingMachines #spirograph #epitrochoid #mathart #americanmathematicalsociety #mathematicalart (at Portslade, West Sussex, United Kingdom) https://www.instagram.com/p/B5TIPSIHRjA/?igshid=1p3q0nftd9k6k

For my two shows in South Korea recently (15-29 Oct) I drew all 15 patterns with my 15-gear Bicycle Spirograph / machine, using a Sharpie pen on Khadi handmade art paper. They looked great on the wall at galleries in Seoul and Eumseong. Here’s the process sped up. #GiantDrawingMachines #timelapse #spirograph #epitrochoid #drawingmachine #contemporaryart @sharpie @khadipapers (at Portslade, West Sussex, United Kingdom) https://www.instagram.com/p/B4Zh8pWnDIO/?igshid=1n70f8ze1sidb

Drawing Spirographs with bicycles at @ba_i360 yesterday, for Brighton Science Festival. There again today (with less extreme weather!). Come and play! #GiantDrawingMachines #brightonsciencefestival #spirograph #hypotrochoid #epitrochoid #drawingmachine (at British Airways i360) https://www.instagram.com/p/B4Zhr5vHvNe/?igshid=sgyuhqqdgeod