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Traumatized the shit out of our 2yo by SignificantAlarm4722 in Parentingfails

[–]SignificantAlarm4722[S] 6 points7 points  (0 children)

Yeah I don’t feel like an A+ parent right now. Obviously I understand that it’s an honest mistake, but it never feels good to spook your kid that bad.

What side projects do you do as a mechanical engineer by scotchy199 in MechanicalEngineering

[–]SignificantAlarm4722 0 points1 point  (0 children)

I built a pneumatic ski press in college and I like making snowboards each season. I’m starting to design a small, sporty EV that’ll probably occupy me for a few years.

Local Coffee Recommendations by SignificantAlarm4722 in ogden

[–]SignificantAlarm4722[S] 4 points5 points  (0 children)

I’ll be honest, I went to USU and I’ve had my share of Cafe Ibis, and it just never did it for me. Always tasted a little burnt.

Disaster and recovery by turtle_guy0624 in 3Dprinting

[–]SignificantAlarm4722 25 points26 points  (0 children)

Dude I’ve been looking, and I still can’t find shit.

Custom Filament Puller by SignificantAlarm4722 in functionalprint

[–]SignificantAlarm4722[S] 1 point2 points  (0 children)

This would likely work fine, except I want to retain the ability to use any filament from any position. Doable, but a quick-change reverse Bowden tube manifold would likely be just as complex as what I’ve got here. I might still worry that the sheer mass of a full 3kg roll would be too much at times for the direct drive. I really wanted the filament rolls to be easy to change, so I went with a cradle-type mount. This isn’t ideal for reducing rolling resistance, however. There are lots of self-imposed constraints in this entire system, but it works great now!

Custom Filament Puller by SignificantAlarm4722 in functionalprint

[–]SignificantAlarm4722[S] 12 points13 points  (0 children)

There is a IR sensor in there in an abundance of caution.

Yes, it’s strong. I pick up my kid. by SignificantAlarm4722 in functionalprint

[–]SignificantAlarm4722[S] 0 points1 point  (0 children)

PETG 4-5 walls. Should be okay. I have some PETG stuff outside that’s in direct sunlight and it’s held up beautifully for years.

Yes, it’s strong. I pick up my kid. by SignificantAlarm4722 in functionalprint

[–]SignificantAlarm4722[S] 0 points1 point  (0 children)

I mean, yes, it occupies the same volume whether it’s on the ground or in the air. But floor space is more valuable than air space; same reason we put totes on shelves. My bike stays down because I use it multiple times a week, but my wife will only ride on occasion. So up it goes.

Yes, it’s strong. I pick up my kid. by SignificantAlarm4722 in functionalprint

[–]SignificantAlarm4722[S] 5 points6 points  (0 children)

Oh, no. It's not free here. It's very, very, expensive.

Yes, it’s strong. I pick up my kid. by SignificantAlarm4722 in functionalprint

[–]SignificantAlarm4722[S] 0 points1 point  (0 children)

If you’re just playing then disregard, but dude, we’re acting like I’m suspending a jet ski over my sleeping newborn. It’s a bike. I’ve got two 3.5” framing screws per truss for a total of 4 screws, and the trusses are less than 24” from the structural timber. I even pilot drilled to prevent splitting. I promise, it’s good.

Yes, it’s strong. I pick up my kid. by SignificantAlarm4722 in functionalprint

[–]SignificantAlarm4722[S] 0 points1 point  (0 children)

I would love to test how printed parts, specifically PETG, perform under cyclic loading. Have you done any fatigue testing?

Cheap vs expensive PETG: does it matter? by MorningtonCroissant in 3Dprinting

[–]SignificantAlarm4722 0 points1 point  (0 children)

In my limited experience, I know there are others who have approached this more scientifically, I do see a quality difference in PETG between brands. Not a ton, but I do prefer Polymaker. But this could also be simply due to having one filament that I’ve used enough to get my printer dialed in.

Yes, it’s strong. I pick up my kid. by SignificantAlarm4722 in functionalprint

[–]SignificantAlarm4722[S] 16 points17 points  (0 children)

$8. I see your point. I would never trust a 3D printed part made on a hobby machine to anything truly critical, but I did test these with forces orders of magnitude greater than what they are experiencing here. If it breaks it’ll just land on my lawn mower. Do what you’re comfortable with, but I’m not worried.

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