Category Archives: Nozzle

Unconventional Drone Uses Gas Thrusters For Control

You’ve got to hand it to [Tom Stanton] – he really thinks outside the box. And potentially outside the atmosphere, to wit: we present his reaction control gas thruster-controlled drone.

Before anyone gets too excited, [Tom] isn’t building drones for use in a vacuum, although we can certainly see a …read more

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Posted in compressed air, drone, drone hacks, Ducted Fan, jet, Nozzle, pitch, RCS, reaction control, Roll, uav, yaw | Leave a comment

High Detail 3D Printing With An Airbrush Nozzle

On a fused deposition modeling (FDM) 3D printer, the nozzle size dictates how small a detail you can print. Put simply, you can’t print features smaller than your nozzle for the same reason you’d have trouble signing a check with a paint roller. If the detail is smaller than the diameter of your tool, you’re just going to obliterate it. Those who’ve been around the block a few times with their desktop 3D printer may have seen this come up in practice when their slicer refused to print lines which were thinner than the installed nozzle (0.4mm on the vast …read more

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Posted in E3D, hotend, Nozzle, parts | Leave a comment

3D Printed Variable Area Jet Nozzle

If you’ve ever seen the back end of a military jet, you’ve likely seen variable area nozzles. They’re used to adjust the exhaust flow out of the rear of a jet engine during supersonic flight and while the afterburner is engaged. Commercial aircraft, with the exception of the Concorde, don’t need such fancy hardware since a static exhaust nozzle works well enough for the types of flying they’ll be doing. For much the same reasons, RC aircraft don’t need variable area nozzles either, but it doesn’t keep builders from wanting them.

Which brings us to this utterly gorgeous design by …read more

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Posted in EDF, jet engine, Nozzle, parametric design, scale model | Leave a comment

Want A Leak-Proof Camper? Better Fire Up The 3D Printer Now.

Ah, the great outdoors.  Rejuvenating air rife with mosquitoes and other nasties, and spending some time hanging out in the woods sleeping in a 3D printed camper. Wait– what was that last one again?

Yep, it’s exactly what it sounds like. A Canadian team headed by [Randy Janes] of Wave of the Future 3D, printed a camper at [Create Cafe] in Saskatoon, Saskatchewan, using high-flow nozzles on one of the largest 3D printers in North America. These layers are 10.3mm thick!!

This trailer is one single printed piece, taking 230 hours — nine and a half days — of straight …read more

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Posted in high-flow, Nozzle, Outdoors, record | Leave a comment

LED Illusion Makes Colorful Water Drops Defy Gravity

The 60s and 70s were a great time for kitschy lighting accessories. Lava lamps, strobes, color organs, black light posters — we had it all. One particularly groovy device was an artificial rain display, where a small pump dripped mineral oil over vertical monofilament lines surrounding a small statue, with the whole thing lighted from above in dramatic fashion. If it sounds appalling, it was, and only got worse as the oil got gummy by accumulating dust and debris.

While this levitating water drops display looks somewhat similar, it has nothing to do with that greasy lamp of yore. [isaac879]’s …read more

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Posted in led, led hacks, misc hacks, neopixel, Nozzle, pump, pwm, rgb, strobe, time fountain | Leave a comment

Hackaday Links: January 29, 2017

A 3D printer and laser cutter were cited as cause in two deaths. A couple (and two cats) were found dead in their apartment this week. The cause of death was carbon monoxide poisoning. Police and the gas company investigated the residence and found no other source of carbon monoxide besides a 3D printer and a laser cutter. Be sure to check out the people who know more about these deaths than the people who actually investigated these deaths in the comments below. In the mean time, get a CO detector. It’s nasty stuff.

At CES last this month, Lulzbot …read more

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Posted in lulzbot, MOARstruder, Nozzle, Pi, Pi Cluster, Raspberry Pi, travelling hacker box, Travelling Hackerbox, xrobots | Leave a comment

Hackaday Links: January 8, 2017

What do you get when mindless automatons with no capacity for reason or logic converse? While you discuss that in the comments, here are two chatbots on Twitch. The highlights? A few hours ago they were doing the cutesy couple, “‘I love you more!’, ‘No, I love you more!’” thing. This was ended by, “Error, cannot connect to server.” Even robot love is not eternal.

3D printer nozzles wear out. Put a few hundred hours on a brass nozzle, and you’re not going to get the same print quality as when you started. This has led to stainless and silly-con …read more

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Posted in Nozzle, Olsson, panelize, pcb, ruby, twitch plays crippling depression | Leave a comment