Pat Cullen (@patcullen) 's Twitter Profile
Pat Cullen

@patcullen

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linkhttp://mindmeat.blogspot.com calendar_today28-02-2008 07:34:58

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Rotational full adder. #fail For the last year I've put a lot of time into building components for an analog Lego computer. I've made many different components with varied success and failure. I am documenting all… instagram.com/p/B4B9rnCHAkE/…

Pat Cullen (@patcullen) 's Twitter Profile Photo

2-bit Adder #fail Chained two full adders together. This is where friction really became too overwhelming. Need to redesign to include a buffer or some other gate or mechanism to reintroduce power into the… instagram.com/p/B4CKLZsH7oL/…

Pat Cullen (@patcullen) 's Twitter Profile Photo

Failed attempts at an absolute directional drive shaft. #fail Acts in the following manner.. Bidirectional input is converted to two single direction outputs. @ Tainan, Taiwan instagram.com/p/B4FV57VnQOg/…

Pat Cullen (@patcullen) 's Twitter Profile Photo

Transistor and NAND gate prototypes. #fail Most of this batch used a weight acting against an input force and gravity to function a switch. Not great but at least some ideas were played with to introduce powered… instagram.com/p/B4KOa6anFY6/…

Pat Cullen (@patcullen) 's Twitter Profile Photo

Failed analog transistors and NOT gates. Experimenting with finding a small efficient Lego analog "transistor". #lego #analog #computer @ Tainan, Taiwan instagram.com/p/B4cP6wmnqqG/…

Pat Cullen (@patcullen) 's Twitter Profile Photo

Rotational NAND gate. #fail Full analog nand gate. Everything works except for one state where both inputs are on. Built around four differential gears. #lego #analog #rotational #NAND #logic #gate @ Tainan, Taiwan instagram.com/p/B5K2hHnHCTo/…

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LEGO NAND logic gate. #almostsuccessful Based on differential gears. Besides having one state not accounted for in the truth table, the thought of link several of these together for a full adder was… instagram.com/p/B7Ib_oKHdqX/…

Pat Cullen (@patcullen) 's Twitter Profile Photo

LEGO Atomic Spinny Thing. Saw something similar on LEGO Ideas and felt like replicating the concept with the pieces I had available. @ Tainan, Taiwan instagram.com/p/CEoIte9A3gg/…

Pat Cullen (@patcullen) 's Twitter Profile Photo

LEGO Mini Caravan Cars Some demo cars I made for an activity I did with my students. The idea was to give every student a common base to build from then all the cars could be linked into a train or caravan at the end. instagram.com/p/CFFCbtenR_X/…

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Art Cart Scrap wood challenge for myself. All the wood was offcuts from previous endeavours. Made to fit snuggly under my desks out of the way. @ Tainan, Taiwan instagram.com/p/CF67AaiHWNI/…

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Giant quilt Made from dozens of old clothes my wife and I were too fat to fit in. @ Tainan, Taiwan instagram.com/p/CVhk5V7pZPh/…