# Plastic H-profile yoyo **URL:** https://forums.yoyoexpert.com/t/plastic-h-profile-yoyo/423425 **Category:** Yo-Yo Mods and Maintenance **Created:** [April 20, 2025, 12:43pm UTC](https://forums.yoyoexpert.com/t/plastic-h-profile-yoyo/423425 "2025-04-20T12:43:58Z") **Posts on this page:** 8 **Page:** 1
### Author: ![MaDMAn](https://avatars.discourse-cdn.com/v4/letter/m/f08c70/32.png) [@MaDMAn](https://forums.yoyoexpert.com/u/MaDMAn) #### Post date: [April 20, 2025, 12:43pm UTC](https://forums.yoyoexpert.com/t/plastic-h-profile-yoyo/423425/1 "2025-04-20T12:43:58Z")
One more… 57.7 mm diameter 43.3 mm wide 65.3 gr ![1000007581](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/1/e/9/1e90f97d74e66c50c9b37b1b7eb8571174170fc7.jpeg) ![1000007580](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/4/9/2/49253dc6ebfca5fe62cdaeaf120f03f10de72936.jpeg) ![1000007582](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/1/4/3/1437bab2e519b32112cff7fd1881dc16f2bcb522.jpeg) ![1000007583](https://us1.discourse-cdn.com/flex015/uploads/yoyoexpert1/original/4X/a/e/f/aefa4ebc0954fa6c091f4c0a8daea9f9a77151f2.jpeg) ---
### Author: ![SlacKing](https://avatars.discourse-cdn.com/v4/letter/s/5f8ce5/32.png) [@SlacKing](https://forums.yoyoexpert.com/u/SlacKing) #### Post date: [April 20, 2025, 5:19pm UTC](https://forums.yoyoexpert.com/t/plastic-h-profile-yoyo/423425/2 "2025-04-20T17:19:30Z")
Looks like it would play nice! 1). Did you make that? 2). Is it delrin? ---
### Author: ![MaDMAn](https://avatars.discourse-cdn.com/v4/letter/m/f08c70/32.png) [@MaDMAn](https://forums.yoyoexpert.com/u/MaDMAn) #### Post date: [April 20, 2025, 5:32pm UTC](https://forums.yoyoexpert.com/t/plastic-h-profile-yoyo/423425/3 "2025-04-20T17:32:34Z")
Yup, made it myself. It’s ertacetal, probably just another name for delrin (not sure but I always thought delrin is a brand name). ---
### Author: ![already\_taken\_photos](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/already_taken_photos/32/632331_2.png) [@already\_taken\_photos](https://forums.yoyoexpert.com/u/already_taken_photos) #### Post date: [April 20, 2025, 5:36pm UTC](https://forums.yoyoexpert.com/t/plastic-h-profile-yoyo/423425/4 "2025-04-20T17:36:40Z")
Looks fun! ---
### Author: ![Captrogers](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/captrogers/32/647012_2.png) [@Captrogers](https://forums.yoyoexpert.com/u/Captrogers) #### Post date: [April 20, 2025, 5:50pm UTC](https://forums.yoyoexpert.com/t/plastic-h-profile-yoyo/423425/5 "2025-04-20T17:50:51Z")
This looks really neat ---
### Author: ![SlacKing](https://avatars.discourse-cdn.com/v4/letter/s/5f8ce5/32.png) [@SlacKing](https://forums.yoyoexpert.com/u/SlacKing) #### Post date: [April 20, 2025, 7:37pm UTC](https://forums.yoyoexpert.com/t/plastic-h-profile-yoyo/423425/6 "2025-04-20T19:37:20Z")
From what I see, Ertacetyl is Mitsubishi’s brand name for various types of POM. POM-H (homopolymer acetal) is also called delrin. Not sure if POM-C (copolymer acetal) is the one typically classified as POM in yoyo designs, or if that’s something else. Maybe someone can clarify. Thanks for making me look that up - at least I learned a little. And props on doing it yourself! Would be cool to see your process sometime. ---
### Author: ![Benthrowsyoyo](https://sea1.discourse-cdn.com/flex015/user_avatar/forums.yoyoexpert.com/benthrowsyoyo/32/300522_2.png) [@Benthrowsyoyo](https://forums.yoyoexpert.com/u/Benthrowsyoyo) #### Post date: [April 20, 2025, 8:19pm UTC](https://forums.yoyoexpert.com/t/plastic-h-profile-yoyo/423425/7 "2025-04-20T20:19:36Z")
This actually looks really fun. Congrats! ---
### Author: ![MaDMAn](https://avatars.discourse-cdn.com/v4/letter/m/f08c70/32.png) [@MaDMAn](https://forums.yoyoexpert.com/u/MaDMAn) #### Post date: [April 20, 2025, 9:25pm UTC](https://forums.yoyoexpert.com/t/plastic-h-profile-yoyo/423425/8 "2025-04-20T21:25:28Z")
Most of these are made when I’m working at a nuclear power plant, I work there a few months a year when they do large repairs, there’s a lot of waiting involved so I make yoyo’s to make time go by. Camera’s are prohibited, but I’ll remember to take some pics if I ever find some time to make some yoyo’s after hours at the workshop I usually work at. I don’t mind showing how I machine yoyo’s. I’d love to see how others make them, to learn new tricks :wink: