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(...) I built one similar to yours last night (I put gears on both sides as an experiment). You're correct that it's the gear backlash that causes the wheels to not quite turn at the same time. Pushing the wheels down manually with your finger is a (...) (19 years ago, 14-Dec-05, to lugnet.technic)
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| | Re: My first mini-quad
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(...) Sure! (...) Yes, the right legs both do the same thing at the same time, as do the left legs. I'll have to work on a movie. (...) Thanks! (...) Kev (19 years ago, 14-Dec-05, to lugnet.technic)
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| | Re: 3 segments hexapod
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Hi Sigurd, Thanks for your response. (...) What I mean was to use one of the peer-to-peer filesharing networks to share the file, and save yourself the bandwidth of distributing it. Something like eDonkey, which you can simply put a link on a page (...) (19 years ago, 14-Dec-05, to lugnet.technic)
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| | Re: Mechanical obstacle avoider
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You are awesome. I had read about this in some lego paper about gearboxes, specifically shiftable ones. It said the problem was keeping the car in reverse for a while instead of jittering back and forth. Now I -really- want to get into the (...) (19 years ago, 13-Dec-05, to lugnet.technic)
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| | Re: My first mini-quad
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Hi Kevin, (...) oke now it's my turn again i guess?...:p (...) you get a movie for me?? (...) nice!! (...) Sigurd (19 years ago, 13-Dec-05, to lugnet.technic)
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| | Re: 3 segments hexapod
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Hi Danny (...) thank you :) (...) Yes it is a auto walker (...) it takes aboud 9 seconds per cycle, and it takes 6 steps a cycle (...) it's useless :p (...) 16 to make it walk, and i pland 5 extra to make a midstop in the segments to help it whit (...) (19 years ago, 13-Dec-05, to lugnet.technic)
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| | My first mini-quad
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Hi, I was inspired by Sigurd's mini quad: (URL) So I decided to have a go myself. My mini-quad includes the switches and timing circuitry, unlike Sigurd's mini-quad. (4 URLs) This quad is basically two of these bipeds hooked together: (URL) Please (...) (19 years ago, 13-Dec-05, to lugnet.technic)
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| | Re: Ideas for Lego Chipper?
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(...) Correction: The wheel the blades are mounted on would not be Lego either. Based on the feedback the last post got, I sould probably make on that just shreads food such as long straight pretzels. All I really care about is that it can shread (...) (19 years ago, 13-Dec-05, to lugnet.technic)
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| | Re: 3 segments hexapod
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(...) Hi Sigurd, Very nice! Could you please email em a video? Kevin (19 years ago, 13-Dec-05, to lugnet.technic)
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| | Re: 3 segments hexapod
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Hi Sigurd, I am always intrigued by walkers, and this one has particularly intersting features. Is it completely auto walking, I mean if you feed it air, it walks? How long does it take per step, and how long per cycle? What is the gait it uses? (...) (19 years ago, 13-Dec-05, to lugnet.technic)
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| | Re: Mechanical obstacle avoider
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Interesting little device, reminds me this one: (URL) in terms of mechanical IQ, yours is far ahead... (...) Probably indeed ;o) Philo (19 years ago, 13-Dec-05, to lugnet.technic)
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| | Re: 3 segments hexapod
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(...) I've sent you a e-mail whit a video, should explane a lot:), if anyone else whants to see it just mail at sigurd18@hotmail.com or let me no at lugnet.com/technic (...) thanks (...) on it is'nt, it dont work the way i plant, the leg swap (large (...) (19 years ago, 13-Dec-05, to lugnet.technic)
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| | Mechanical obstacle avoider
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Everyone makes a Mindstorms robot that drives forward until it hits an obstacle, then reverses and turns for a short distance before resuming its forward motion. Here is a robot that does the same by 100% mechanical methods. It has only one motor, (...) (19 years ago, 13-Dec-05, to lugnet.technic)
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| | Anyone seen Leo Dorst?
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He used to have a site with some great freehand drawings at (URL) but it's currently timing out for me. Does anyone know if the site has moved elsewhere, or how I can contact Leo? Thanks ROSCO (19 years ago, 13-Dec-05, to lugnet.technic, lugnet.people)
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| | Re: 3 segments hexapod
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Hey that is amazing! I'm trying to imagine it moving and working. I need help! Very nice symetry you have with the central body and the pistons at angles. Wow. What a technical triumph. Excellent work. Video? e (19 years ago, 12-Dec-05, to lugnet.technic)
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| | 3 segments hexapod
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oke another hexapod, this one is made whit inspirations of Kevin L. Clague (e-mails) it uses the schema from his inchworm for leg lift and drop, and the leg swap is just slave of the lift and drop pistons. the front and the rear legs uses elbow (...) (19 years ago, 12-Dec-05, to lugnet.technic)
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| | Re: Vehicle with square wheels
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(...) I think the veer left comes from gear backlash. Front and rear wheels are not maintained strictly 22.5° apart and the way it works, this introduces left/right dissymetry. My first attempt used 3 z24 gears with less backlash but of couse I (...) (19 years ago, 12-Dec-05, to lugnet.technic)
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| | Re: Vehicle with square wheels
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(...) Fantastic work. I hadn't even started my attempt. I like your using the battery box as the weight -- it's very simple and compact. I noticed from the video that it tends to veer left. Are the wheels losing traction when they're fully flat? (19 years ago, 12-Dec-05, to lugnet.technic, FTX)
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| | Re: Vehicle with square wheels
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Sorry, bad link. (URL) Video clip> (600k, DivX 5 AVI file). Philo (19 years ago, 9-Dec-05, to lugnet.technic, FTX)
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| | Re: Vehicle with square wheels
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(...) (snip) (...) I finally got it to work... (click for bigger images) (3 URLs) ...and a short <sw1.avi video clip> (600k, DivX 5 AVI file). Enjoy ! Philo (19 years ago, 9-Dec-05, to lugnet.technic, FTX)
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