Older blog entries for lkcl (starting at number 1)

4 Jan 2002 (updated 1 Feb 2002 at 09:52 UTC) »

i have three subscriptions, and am ordering spares frequently. reason: lots of bits to test and break. the axis developer board, ultimately, when the circuit diagrams are made available (issue 19?), i will probably plug in to control it :)

spiderbot research

12 motors, from robotbooks.com, are an INSANE $USD 4,140 (excluding shipping!). however, these motors would allow the spiderbot's legs to move at an equally insane 11 feet *per second*, and for *each leg* to be capable of lifting 3000 kilograms - that's 3 metric tonnes.

these are some _serious_ electric motors. normally, people only buy one - for a spinning disk weapon!

12 motors equals 65 kilos.

battery array plus electronics equals 5? kilos

frame equals an estimated 25 kilos, if using stainless steel box frame, and that fancy polycarbon plastic whatever.

65, 70, 95, that leaves 65 kilos for weaponry & legs.

yikes... it's going to be close. the limit is 150 kilos for a walking robot...

spiderbot simulation

currently having fun picking up source code for mesa-gl, with examples etc. matrices multiplication mmmm :) need to work out where the legs will go, then find out which is the lowest leg. hmmmm....

that would involve... finding the three lowest points that describe a plane, which no other legs intersect. cool! [i'm not going to worry about objects on the plane, for now...]

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