A lecture on 3D and my University

Last Monday, October 24, I had a public lecture at the Auditorium of Haaga-Helia University of Applied Sciences, where I teach IT. Some 30 students showed up at the Auditorium, and because I had requests from our other campuses for recording, I asked the IT Support to do that. This …

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Teaser for next project: Arduino-driven 8mm film scanner

I’ve been rather busy of late, so I haven’t had time to deliver the second part on the 3D scanner – sorry about that. But here’s a little teaser to keep your interest up: In this video you can see how the Arduino drives the servo, which runs the film …

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Printing the scanner frame, part 1

General design Now that the scanning works, it’s time to explain the design of the tool. The size of the finished system of course makes it impossible to print it with any current 3D printer available to me, but even with MiniFactory’s 15 x 15 cm build table, it is doable. I …

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Trebuchet, or counterweight catapult, part II

I will now try to take you through the design of the trebuchet which has been shown in Part I of this post. This description that follows is actually aimed at showing you how in Blender all design is based on very simple starting points. The trebuchet frame is based on a …

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Trebuchet, or counterweight catapult, part I

Finished print assembled and loaded

For some time now, I have been thinking of printing a trebuchet. On Youtube you see massive trebuchets capable of hurling a flaming piano (!) to a distance of 200 meters, or trailer-based versions used in pumpkin-throwing contests. This sort of machinery is clearly beyond my MiniFactories and even the …

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