Seen around the web!

Reynolds have had 3D printed dropouts for about 7 or 8 years.

No seat tube, no problem -Specialized

I actually think it looks pretty cool and would love to try one out. I wonder if we could replicate something like this with a steel or titanium plate. I also wonder if we would get sued :sweat_smile: by Specialized

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Peak crank. hollowtech 2 4 lyfe

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21st century Flying Gate.


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Nice! I can’t tell if the name is intentionally ironic. It really looks like a gate :rofl:. At least we can claim prior art if Specialized comes after us.

@Meriwether now you have more inspiration for your “chainstays as short as possible” clients

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Sorry, it’s time for me to bail on the forum.

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I think we may all know this guy. Congrats on the Radar Roundup

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Thank you! Congratulations is also owed to @Daniel_Y, there is far too much to do around here for me to manage on my own.

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Unsure if this is the place to post this so feel free to delete but this popped up on a fb group that I’m a member of. Could be useful to someone on here.

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Thanks. That’s close to me. I may reach out

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I love having a surface plate in the shop. I use it for everything.

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A cool article featuring @Meriwether in magazine form (what is that?)!

https://www.mbamag-digital.com/mountainbikeaction/may_2023/MobilePagedReplica.action?pm=2&folio=42#pg46

Here it is in PDF form:
MTBA May 2023 - Meriwether.pdf (2.4 MB)

An excerpt:

Truth be told, I’ve owned more than a handful of hardtails over the years, but none of them felt like they were completely on point, so they often collected more dust than miles. It was usually a combination of poor fit, funky geometry and not being the optimal choice for bikepacking that would keep them out of rotation. Specific to the latter, paint would get scuffed from packs and straps. Hardtails with fun, modern geometry would only have one or maybe two water-bottle mounts, and most front triangles were too small to offer space for a high-volume frame bag. On the other hand, bikepacking-specific frames tended to ride like the antiques I grew up on.

Way to go Whit!

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Seth discusses bicycle handling with a unique stem.

BTW, how do you embed a YouTube video?

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Big advocate of the less is more stem length here but his explanation in regards to steering axis is not quite right. The higher bars would be great for steep downhill tracks but climbing steeps with that height would be heinous.

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If you paste the URL link on a separate line, it will automatically embed

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Agreed. He addresses the poor climbing position in the video.

I thought it was nice that he thought it would be horrible to descend with but ended up going faster than normal. We all have assumptions about what will and won’t ride well. The spectrum of what rides well seems to always be larger than we assume.

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This crazy, from Radic Performance: 3D printed brake calipers???


Looks amazing and is a really cool idea. You could easily print pathways for the fluid to flow between the pistons. There is a lot of research being done on 3d printed microfluidics and micro needles.

Obviously, I think it has its challenges w/ 3D printing brake calipers:

  • tolerances
  • porosity of the material

But damn, such a cool execution.

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It’s one of those ‘it’s so obvious’ ideas. Definitely has potential.

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Wow, those look crazy light! I’m guessing a little milling could square things up after printing?

Love how organic and kinda gross those 3D printed calipers look! Imagine them painted like vein-y meat. So Giger.

I’m gonna throw on my “I’m not a qualified engineer hat” on and guess Daniel was referring to the fluid diameter/pathway tolerances?

The porosity is the thing I’d be wondering about, but I have no experience with 3D prints. But everything I’ve held previously held looked rather… porous.

The piston bores and mount interfaces would have to be post machined I imagine.

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