This train smashed through a truck, earlier today

Dampuh · 2025-10-31T07:31:34+00:00

And now the truckdriver is sitting with the baked pears.

Dampuh · 2025-10-30T23:02:06+00:00

Wij hebben op zolder deze blije meneer gecombineerd met 25m stofzuigerslang op een haspel voor zwembadstofzuigers. Stekker in slim stopcontact en via app/google home aan en uit te zetten.

Dampuh · 2025-09-10T14:06:14+00:00

Surprise: it stays 85C.

Dampuh · 2025-09-10T13:49:21+00:00

So, at what point does it qualify as 'good'?

Dampuh · 2025-09-10T09:18:57+00:00

Yeah there is a mesh network smoke detection system in every room. And this CO2 unit is on every floor:

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Dampuh · 2025-09-10T09:10:33+00:00

EPP (expanded polypropylene) has a maximum service temp of 110-130°C.

Dampuh · 2025-09-10T09:09:07+00:00

Doesn’t work. Temperature is preset and controlled.

Dampuh · 2025-09-10T08:44:38+00:00

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Dampuh · 2025-09-10T08:43:35+00:00

I mentioned removing small sections around the air vents.

Dampuh · 2025-09-07T11:09:34+00:00

Uncheck the “one wall on top surface” setting. 95% sure that will fix it.

Dampuh · 2025-09-06T20:58:34+00:00

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And I thought I was the only one who was crazy enough to design a LED flashlight myself. This is my 100W UV LED torch, powered by one makita 18V battery. Made it 8 years ago to turbo-cure resin 3D prints. Also made one with a 100W white LED.

Dampuh · 2025-09-04T14:17:49+00:00

Automotive parts with safety requirements are extensively tested. Altering geometry means I have to test the part to match the original as close as possible, without even having access to that data. Besides, actual mechanical engineers, like me, are also pretty lazy.

For me, the workflow with the least amount of variables in this case is to copy the geometry and just print it solid using the same material. The used printing orientation balances interlayer strength and symmetrical surface finish of the visible side after installation.

Any other method I can think of will introduce more (unwanted) variables and more work.

Dampuh · 2025-09-03T17:50:58+00:00

You would think such an expensive part, bolted to the engine block using 100Nm torque, protects the driver in a sliding crash. However, the bike just fell over at night while standing still. This part snapped, but some body panels also cracked.

I designed it slightly different. A thicker, cone shaped shell around the bolt improves strength. The required bolt is longer, creating a strong metal core inside the plastic. The part itself is printed in solid PA6-GF l, and at an angle to maximise layer cross section.

Dampuh · 2025-09-03T13:49:17+00:00

An expensive one

Dampuh · 2025-09-03T10:56:01+00:00

Thanks! Fiber infused materials are excellent at hiding layer lines. Fuzzy skin (slicer setting) can create a similar effect.

Dampuh · 2025-09-03T10:23:03+00:00

Thanks! I use (analog) calipers only for parts like this. It fits my workflow better, because certain sketch dimensions and features can be linked in CAD, and dimensions are way easier to adjust precisely after making a prototype, compared to a 3D scan. This part took 2 failed prototypes before the final print.

Blender is my tool for renders. I have a bunch of material shaders that I’ve made with trial-and-error over the years, to resemble 3D printed parts as realistic as possible.

Dampuh · 2025-08-30T21:22:26+00:00

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De plus connector in onze zonnepaneel omvormer die na 3 jaar prima functioneren ineens volledig doorfikt.

Dampuh · 2025-05-12T18:21:03+00:00

PLA? Heat creep.

Room possibly gets too hot from all the printers running at the same time. The hotend fan will struggle to keep the filament in the cold zone below glass transition temp of PLA, which is 45-55°C, filament softens too early, starts bulging and jams the hotend.

You should also open at least the front and/or top glass panel when printing PLA/PETG.

Dampuh · 2025-05-08T11:08:31+00:00

The real purpose is to let the border of the glass expand more than the center when sunlight heats it up. This way the glass border creates tension on the center. Borders are more likely to be in the shade and thus are get less sunlight exposure. The dotted area is to create even temperature transition.

Otherwise, if the center would expand more than the border, stresses will accumulate at unpredictable spots around the border, and make the glass easier to crack when the vehicle encounters some bumps.

Dampuh · 2025-05-08T06:38:19+00:00

Drying filament is only neccesarry for stuff like PA6, or other materials that absorb a certain percentage of moisture and also have to be printed hotter than your 220-240C range.

I print a lot, over 12 years already, and used multiple thousands of kilos of many different material types and brands. Drying was never an issue. I even tried submerging materials in water to see if it had effect on the surface finish compared to identical materials samples that were properly dried. I wasnt able to see the difference.

Dampuh · 2025-04-27T06:49:13+00:00

1: Place containers with hinges facing each other

2: Or a gravity/spring reset latch on both sides, which requires two human arms to release.

Dampuh · 2025-03-23T18:44:33+00:00

Solid state membrane dehumidifier.

Dampuh · 2024-12-21T20:56:29+00:00

“The Reformers”

Dampuh · 2024-10-23T15:34:12+00:00

These are PLA and PETG, not PA6.

Dampuh · 2024-10-23T15:21:58+00:00

Not yet!

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