What's it for?
this post was submitted on 26 Jul 2025
86 points (95.7% liked)
3DPrinting
19980 readers
104 users here now
3DPrinting is a place where makers of all skill levels and walks of life can learn about and discuss 3D printing and development of 3D printed parts and devices.
The r/functionalprint community is now located at: or !functionalprint@fedia.io
There are CAD communities available at: !cad@lemmy.world or !freecad@lemmy.ml
Rules
-
No bigotry - including racism, sexism, ableism, homophobia, transphobia, or xenophobia. Code of Conduct.
-
Be respectful, especially when disagreeing. Everyone should feel welcome here.
-
No porn (NSFW prints are acceptable but must be marked NSFW)
-
No Ads / Spamming / Guerrilla Marketing
-
Do not create links to reddit
-
If you see an issue please flag it
-
No guns
-
No injury gore posts
If you need an easy way to host pictures, https://catbox.moe/ may be an option. Be ethical about what you post and donate if you are able or use this a lot. It is just an individual hosting content, not a company. The image embedding syntax for Lemmy is 
Moderation policy: Light, mostly invisible
founded 2 years ago
MODERATORS
Shark fin to make bike go faster
It's for a custom part for his bike. I don't know more details but he promised to send a picture once it's done
A bicycle.
A mould? What's the next step? I've seen moulds for silicon but are you doing resin or fiberglass?
Also I think designing structural fins with pins would help alignment.
Most likely carbon fiber with epoxy resin - it's super common for custom bike parts becuase of the strength-to-weight ratio, and those release angles on the mold look perfect for it.