Courbet
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Thanks to Theo van Vroenhoven's feedback on Zig-Zag Stairs version 2, I have improved the motor attachment on this module. My first version was really a lazy job, the new one is much sturdier while using the same gears. I updated my MPD and PDF files on Bricksafe: http://bricksafe.com/files/Courbet/akiyuki-project/GBC_Zig-Zag_Stairs_v2_par_Akiyuki.mpd http://bricksafe.com/files/Courbet/akiyuki-project/GBC_Zig-Zag_Stairs_v2_par_Akiyuki.pdf
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Hello everyone, I have made instructions for Akiyuki’s Zig-zag Stairs version 2 which is seen in his layout 2012.9 video at 1’05”. As I did on Finn’s Steering Cup, I took the liberty to build the input and output parts of the module according to Akiyuki’s current standard to allow full compatibility with the others modules from the Akiyuki Project. @Blackbird, if you think I got too far and that the final result is too different from Akiyuki’s model, I should be able to strip it and get closer to its original form. I haven’t built the version 1 so I can’t compare the two, but this second version of ZZS has shorter stairs (16 studs length instead of 20) and only one crankshaft. It works very well and feels quite sturdy and reliable, although I haven’t tested it over a long period of time. Since I calculated that the crankshaft rotates at approximately 100 rpm in Akiyuki’s video, I figured I needed another 1/2 reduction on the other side of the module (which is not visible in the video anyway). I wanted a clutch so I did the same 12/24 reduction with a crude attachment for the M motor. The PDF and MPD files in my Akiyuki Project folder : http://bricksafe.com/files/Courbet/akiyuki-project/GBC_Zig-Zag_Stairs_v2_par_Akiyuki.mpd http://bricksafe.com/files/Courbet/akiyuki-project/GBC_Zig-Zag_Stairs_v2_par_Akiyuki.pdf And a short video:
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GBC General Discussion
Courbet replied to Jim's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
I haven't got a clue on this one! -
GBC General Discussion
Courbet replied to Jim's topic in LEGO Technic, Mindstorms, Model Team and Scale Modeling
Hello everyone, I have made instructions for Finn’s Steering Cup GBC module which is also seen in Akiyuki’s 2016 Brickfest video. I took the liberty to greatly modify the input and output parts of the module by building them according to Akiyuki’s standard to allow full compatibility with the others modules from the Akiyuki Project. As a matter of fact, you will find the PDF and MPD files in the same Akiyuki Project folder on Bricksafe with my others instructions files: http://bricksafe.com/files/Courbet/akiyuki-project/GBC_Steering_Cup_par_Superfin619.mpd http://bricksafe.com/files/Courbet/akiyuki-project/GBC_Steering_Cup_par_Superfin619.pdf -
All 13 purple ones are 12L, and the 12 black ones for the screw are 14L. Other black ones are needed of various lengths for the output ramp (1x8L, 1x11L, 2x15L, 2x17L). Some are difficult to find at those lengths but it's easy to modify the ramp to use whatever lengths you got using pins, axles, pins joiner round, etc.
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Mogwai, thanks for the feedback! Of course, you are right, it's a 8t gear, not a 12t, at step 23 on page 125. I have corrected the Bricksafe files (mpd and PDF) accordingly.
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If you're talking about the two files I provide in Bricksafe, the PDF file is draft instructions and the other file (.MPD) is the matching MLCad model.
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You can now find on Bricksafe my mdp file of Akiyuki’s latest masterpiece. I have also made a draft PDF with better resolution than before. Search for "Akiyuki Project" on Bricksafe to access both files. A word about Akiyuki’s Strain Wave Gearing GBC module: - although the Stepper part is the one Akiyuki used on Cycloidal Drive, I have modelled the steps a bit lighter (removing bricks and plates) to be more accurate to Akiyuki’s design. Akiyuki fixed the Stepper with frictionless pins on one side to give more play and I think it helps greatly to reduce friction from that mechanism. Using those on Cycloidal Drive too is probably a good idea. - speaking of friction, there also can be a lot of it with the double gearing around the back turntable if the 12t bevel gears are not properly synchronised. - at my first attempt at running the module, the main shaft, built with classic bricks and plates, collapsed rapidly under the load, so I used Technic bricks to rigidify it and I have kept it that way - the stopper rod must be timed properly for the module to work correctly. The module is very reliable once properly set-up. - there is a slight difference between Akiyuki’s video and his pictures with the very first part of the output slide (light bluish gray ramp is 7 studs long on pictures and 8 in the video), I have done both and in my experience the module behave the same. In the end I modelled the video version. - The rubber band is the 3x3 kind, very common in red. Finally, I have borrowed Philo’s modelling of the Type 3 Turntable from his impressive 42043 Ldraw model to use in mine. Let us know if you found some parts that you interpreted differently.
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I agree with Blackbird, the coupling of the additionnal switch with the unloader is a great idea and is well done. Bravo! I will publish my mpd file tomorrow, or friday at worst.
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While I could not do a test with 36 of these balls (32474, right?), I exchanged some on my model and did not see any change of behaviour, so it should work ok with a full set of these.
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Hello everyone, I have finished building an accurate replica of Akiyuki's last module to date : GBC Strain Wave Gearing. It is beautifully designed as expected from Akiyuki (although my cat is not that interested this time). A MPD file is nearly completed (I had fun with all the weird angles on this one) and I will publish it and a draft PDF this week.
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I'm not there yet but 24 looks right to me.
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Because a technic beam is a bit less high than an 1x2 brick (a half plate less high), and you need 7 and a half plates to get the height of a 3 studs plate put verticaly.
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I believe this is made with the 2 tiles you mentioned, plus a 2x3 plate, 2 brackets (99781 and 99207), a regular 1x2 Brick and a 2L technic Beam.
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I am currently building it as well and I plan to release a mpd (and draft pdf) file shortly after I'm done, but for now I miss some key parts (who has got those 36 red balls in his stash?) and hope my Bricklink orders won't take too long to reach me.
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You are right and I got this part wrong on my interpretation of Akiyuki's Crane Loader. It's great if that very easy modification significantly improves the running of the crane, Blackbird shouldn't have much trouble to update the instructions.
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Apart from The Rebricker's version of the Ball Factory, Pinball is also the only module from Akiyuki which you can turn into a GBC loop in itself without adding any other part (just turning the output ramp 180°). GBC Train is close, but you need more rails. Fork to Fork also, thanks to the snake glide but some additionnal parts are needed to prevent balls spilling in the glide (I tested that).
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Thanks! This module works well with an M motor as did the prototype. Maybe Akiyuki chose the L motor because of its pinholes, as the easiest way to rigidify the (now upper) mount.
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@Blackbird, those ribbed hoses bothered me on my MPD of Akiyuki's Archimedes Screw Type 2, so I reworked them differently and the result is much better now. The build sequence of the screw has been modified also (no more submodels now) and makes more sense imho. GBC_AST2 - V2.zip
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Hello everyone, Here is a MPD file of Akiyuki's Archimedes Screw Type 2 as seen in his last video (Brickfest 2016). This time again, the current version is quite different from the module which is seen in his standalone video, particularly the screw itself which is now an almost studless design. 9x 14L ribbed hoses are used. I'm not 100% sure of the build that hold the yellow curved slope, it's hard to tell from the video alone. As it is, the module could spill a ball if it ingests more than thirty at once (which is unlikely in a GBC loop anyway). Also it's my first attemp at LSynth for the ribbed hoses, and it's not that great, but better than nothing for the draft PDF I made that you can find on Bricksafe (search for Akiyuki Project).
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The build looks quite simple, and the modelization looks like a nightmare!
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A bit off topic, but I believe reverse-engineering Akiyuki's 6 Axis Robot Arm is probably not that hard, and a lot easier than the Ball Cleaner or the Container Transporter (how I wish I could build that one) for example. When you examine it, you realize the motors are actually very close to the turntables they activate - no convoluted gearing here. And thanks to the very nice video (as always), you see the arm from every possible angle. Pictures have good definition too. Programming the Robot is probably another story, but i would say if you own 2 EV3 there is no good reason not to try. Me ? I own none.
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I have ordered the skate parts, I will also try to build the Type 2 according to Akiyuki's 2016 video.
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It works quite well :
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Hello everyone, Here is a MPD file of Akiyuki's Archimedes Screw Type 1 as seen in his videos of Brickfest 2015 and 2016. The current version is quite different from the module which is seen in one of his first standalone video, being less crude and much more spacious now. Although the frame has been completely redesigned, I like the fact that Akiyuki kept the DBG + yellow color pattern that he used on the prototype as a kind of testimony. Be warned, this module is designed around the old ridgeless 4x3 Panel for which 57 are necessary. This time (being asked to) I've also generated a draft PDF instructions file which you'll find on Bricksafe (search for Akiyuki Project). While I was at it, I've also done draft PDF for Pinball and Wheel & Steps, not up to Blackbird's high standard though. GBC_AST1.zip