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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Greetings from Denmark

This blog entry comes from Copenhagen. Our university, Haaga-Helia, has for ten years been involved in an international IT seminar for students, and this year’s seminar is #9 in the series (2013 was such a messy year for all participating universities that we decided to skip it that year). The …

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CeBIT Trade Fair 2015, Day 3

On Wednesday we hopped on the commuter train 8 again in the direction of Messe Nord. It’s very handy to have the hotel right by the railway station from which the trains leave for CeBIT and also for Hamburg tomorrow. When I see men in lederhosen with traditional musical instruments, I …

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CeBIT Trade Fair 2015, Day 2

Another sunny day here in Hannover. We went to the fair around ten this morning, and I started from halls 1 and 2. Mostly filled with IBM and other very large companies, but it was interesting nevertheless. IBM was trying to get back into academic co-operation (apparently Microsoft has ousted …

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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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