3d printing

So...the problem with tea lights and fake candles: they aren't very bright, and it's hard to find them in the right size.
So, I designed and 3d printed my own, and am sticking ultra-bright LEDs in them. (that last pic is with every light in the house turned off)
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figmentPez

Staff member
Something is going down in the 3D printing scene. The current owners of 3DBenchy are sending out takedown notices to designs based off of the commonly used benchmark boat.
 
@Frank take this with a grain of salt as it is a sample size of just me. I couldn't detect any increase in VOC's from having the water washable resin sitting in the reservoir in my printing room using my Temptop air quality monitor. It still smells awful and requires venting BUT the whole point of water washable is to not deal with the stuff that is only soluble in alcohol. The regular resin spiked the readings in my air quality monitor almost immediately after opening the bottle.
 
I figured you were, I just didn't know if you'd endure the headache of the other orientations in order to see whether something like "60/45/30deg angle, holes up" made any difference to playability/sound/etc.

--Patrick
Coming back to this idea. Because I have been printing these whistle bodies straight up and down, they tend to be fragile along the perpendicular. There's not a lot of mass to hold them together, and you can snap them in half with slightly more force than is required to snap a pencil. That's not a *huge* deal, because most musicians are used to taking care with their instruments, and I let people know that they're not as robust as metal whistles when they buy them.

But, I'm working on a "tuff" line. One of the reasons I've been experimenting so much with ABS and ASA is so I can make a whistle that's more temperature and UV resistant and also just structurally tougher. For folks who play outdoors, or want to throw something in a backpack, etc. But those perpendicular layer lines are still a weak point.

I tried printing these things at a 45 degree angle in ABS, and it worked great for toughness. I couldn't snap a whistle body in half with my bare hands with all of my strength. But the fit and finish were abysmal. So, here I am, prototyping whistle after whistle, with slight differences in angle values to see which one gives me the best compromise between looks and strength.

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So far, at this angle,the finish looks great through the webcam. I'll know in about an hour how it actually turns out--and of course, I'll have to test it for strength. Which means seeing how hard it is to break. Which is always heartbreaking to do to a musical instrument when there's nothing actually wrong with the piece.
 
Bamboo labs is blocking their printers from being used until owners update their firmware to enable cloud monitoring.
This has not been my experience. This guy's mischaracterizing the firmware update.

Lately, on the Home Assistant forum, they've been complaining that BL is updating their firmware to strengthen API calls to control printer functions when using the printers in cloud mode. But lan-only mode and sd-card mode both still work fine. And if you are already using cloud mode (as I do), the firmware change should be relatively transparent. They're switching from a 6 digit fixed numeric string key that allows someone with the (easily hackable) key to access all printer functions and moving to a more robust security model. This is in response to some actual hacking events, and generally, updated security is seen as a good thing.

If they're updating the cloud services, of course you'll need to have the matching firmware with the security updates if you're using those services. If you're not, you won't. The doom and gloom is over-wrought.

The HA folks are annoyed because you'll primarily lose the ability to start pre-heating your printer via HA instead of the Bambu Handy app or Bambu Studio (since changing temperatures is one of the core controls going behind the enhanced security). But monitoring functions (seeing all printer states, etc) will still work fine.

I should know. I set up HA a while back...and it still works like a charm.
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A less over-wrought description of the changes, which again should be noted only affects those already using the cloud services:
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biggest dragon to date, at nearly 5 feet long. Was at an event a couple months ago with a competing vendor, and she sold a few at this size, so I figured I should get ready for my next event in case someone with deeper pockets wants a yuuuuuge dragon. Shown next to my popular $10 baby dragon for size comparison
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reading the new firmware update more closely, the shitty webcam they provide will be blocked from 3rd party integration. Everything else I use won't be affected.

But you know, 3d printer guys are generally techy and can make a webcam mount for the machine and integrate a totally standalone webcam....and one that does far better than 0.5fps at 720p.

Printer #1 is moving as fast as printer #4. It's the camera on #1 that's slow. Now that I have proof of concept that i can get it done, i'm in the process of upgrading the other 3 printers.

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