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#3dprinted

9 posts9 participants1 post today
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Michael K Johnson

My #3DPrinted #MorseCode key design is coming along.

The cover/handle works really well, I think. I printed it just long enough to be comfortable in my hand. Someone else might want it shorter or longer.

Meanwhile, I've also designed a belt mount. The belt goes through slots in a base that goes under the key, and it goes over the key to make it a solid fit. I could have done one where the belt goes underneath, but this seems like it would be more solid. Then the key slides into a block that swivels, and a few more thumb nuts lock it into any location you like within 40° left or right of center.

This is extremely parametric. The height of the block, the allowed degrees of swing, how thick and wide the belt are, how wide the whole thing is; most of the dimensions are derived from parameters.

This is the second revision of the base and swivel. The first version didn't swivel far enough, the key wasn't raise up far enough above my leg, and the whole thing was too wide. If the key isn't high enough, I inadvertently TX from my pants leg fabric brushing the key. This is because I have the key set to maybe 0.5mm travel to each side; it's quite sensitive. On this iteration, it's slightly too narrow; I can only fit a thin belt through it because the thumb nuts that lock the swivel in place interfere. The next version will be just a little wider.

I think I'm ready for some beta testers! Folks who don't mind running FreeCAD to adjust parameters and print multiple copies to adjust for the filament they are using could help make this good for others. Any #HamRadio #AmateurRadio CW enthusiasts also enjoy 3d printing and want to try this?

Screenshot of model of swivel belt base with morse code key on it.
Assembling the swivel base with thumb nuts. On reflection, maybe black wasn't the best color for photographing this...
Key inserted into carrier block, showing that it does not have to be exactly aligned with the block
Entire contraption belted to my leg. The pants fabric does not interfere with the key any more
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Andreas Bulling

While looking for new hardware for our home server (a 19'' mini rack server is very tempting...), I just came across project #minirack

10" rack server builds using a mix of off-the-shelf commercial and #diy #3dprinted mounts, panels, frontplates etc.

Looks interesting (and the mini racks are also rather cute).
Maybe interesting to some of you.

github.com/geerlingguy/mini-ra
mini-rack.jeffgeerling.com/

Miniature rack builds, for portable or compact Homelabs. - geerlingguy/mini-rack
GitHubGitHub - geerlingguy/mini-rack: Miniature rack builds, for portable or compact Homelabs.Miniature rack builds, for portable or compact Homelabs. - geerlingguy/mini-rack
#homeautomation#smarthome#rackserver
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paradoxmo

The PEEN-hole lens

“This lens has been ergonomically designed from the ground up to provide optimum performance and maximum rigidity. The shaft has a solid five-millimeter thickness for maximum structural support, and the patented bell-shaped tip has not only been hardened to provide optimum impact resistance but it also has a secondary function, which will be revealed a little later on.”

#photography #3dprinted

youtube.com/watch?v=V5MwWcixA6

petapixel.com/2025/02/28/photo

YouTubeI Built A Lens... But I Can't Legally Show It In The Thumbnail 👀By Tom Calton
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Chris Huck :freecad: :ubuntu:

@smellsofbikes “Sealed” bearings are one of the biggest lies of industry. At work, we intentionally pry the seals out of certain bearings and pump Royal Purple grease into them. Then, we reinstall the seals. We’ve yet to have one fail. I even designed and a greasing jig hold the bearing and distribute the grease evenly.

I can’t tell you how many times I’ve pried seals out of bike bearings, smeared Phil Wood waterproof grease into them, and reinstalled the seals.

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